Document:

Directors Deferred Compensation Plan

                                              HANCOCK HOLDING COMPANY

                                        DIRECTORS DEFERRED COMPENSATION PLAN

                                              HANCOCK HOLDING COMPANY
                                        DIRECTORS DEFERRED COMPENSATION PLAN

                                                       INDEX
                                                                                                                PAGE

ARTICLE I - PURPOSE................................................................................................1

ARTICLE II - DEFINITIONS...........................................................................................1

ARTICLE III - RESERVATION OF SHARES................................................................................3
   Number and Type of Shares.......................................................................................3
   Cancellation....................................................................................................3
   Adjustment......................................................................................................3

ARTICLE IV - ELIGIBILITY AND PARTICIPATION.........................................................................3

ARTICLE V - FEES...................................................................................................4
   Stock in Lieu of Fees...........................................................................................4
   Certification...................................................................................................4

ARTICLE VI - DEFERRAL ELECTIONS....................................................................................4
   Deferrals.......................................................................................................4
   Establishment of Deferred Benefit Account.......................................................................5

ARTICLE VII - MAINTENANCE AND INVESTMENT OF DEFERRED BENEFIT
ACCOUNTS...........................................................................................................5
   Status of Account...............................................................................................5
   Investment Policy...............................................................................................5
   Investment Specifications.......................................................................................5
   Common Stock Credits............................................................................................6
   Accounting......................................................................................................6
   Valuation Notice................................................................................................7
   Investment Limitations for Affected Directors...................................................................7

ARTICLE VIII - SERVICE BENEFITS....................................................................................7
   Manner of Payment...............................................................................................7
   Form of Payment.................................................................................................7
   Amount of Service Benefits......................................................................................7
   Time of Payment.................................................................................................8
   Single-Sum Payment..............................................................................................8
   Schedule A......................................................................................................8

ARTICLE IX - DEATH BENEFITS........................................................................................8
   Beneficiary Designation.........................................................................................8
   Participant's Death Before Benefit Commencement Date............................................................9
   Participant's Death After Benefit Commencement Date.............................................................9
   Death of Beneficiary............................................................................................9
   Single-Sum Payment..............................................................................................9
   Form of Payment.................................................................................................9

ARTICLE X - HARDSHIP WITHDRAWALS AND OTHER DISTRIBUTIONS..........................................................10
   Hardship Withdrawal............................................................................................10
   Early Payments.................................................................................................11
   Change in Control..............................................................................................11
   Disability.....................................................................................................12

ARTICLE XI  - PLAN ADMINISTRATION.................................................................................12
   Powers.........................................................................................................12
   Payments.......................................................................................................12
   Delegation of Administrative Authority.........................................................................13
   Expenses.......................................................................................................13
   Exemption from Liability; Indemnification......................................................................13

ARTICLE XII - PARTICIPANTS' RIGHTS................................................................................13
   Spendthrift Provision..........................................................................................13
   Claim for Benefits.............................................................................................13
   Obligation for Benefit Payments................................................................................14
   Tax Reporting..................................................................................................14

ARTICLE XIII - MISCELLANEOUS......................................................................................14
   Termination of Plan............................................................................................14
   Amendment and Modification.....................................................................................14
   Funding........................................................................................................15
   Inurement......................................................................................................15
   Governing Law..................................................................................................15

                                              HANCOCK HOLDING COMPANY

                                       DIRECTORS DEFERRED COMPENSATION PLAN

                 Hancock Holding Company, a corporation organized and existing under the
laws of the State of Mississippi (the "Company"), hereby establishes the Hancock Holding Company Directors
Deferred Compensation Plan (the "Plan"), effective as of January 1, 2001 (the "Effective Date").

                                                  ARTICLE I

                                                   PURPOSE

                 The purpose of the Plan is to provide a means by which non-employee
members of the Board
of Directors of the Company and certain of its Affiliates (as defined below) can defer the receipt of
fees.  The Plan is intended to be an unfunded deferred compensation arrangement; in accordance
with such intent, any obligation of the Company or an Affiliate to pay benefits hereunder shall be
deemed to be an unsecured promise, and any right of a participant or beneficiary to enforce such
obligation shall be solely as a general creditor of the Company or its Affiliate.

                                               ARTICLE II

                                              DEFINITIONS

                 2.1              Affiliate
means any corporation or other form of entity of
which the Company owns,
directly or indirectly, 50% or more of the total combined voting power of all classes of stock or other
equity interests, provided that such entity is designated by the Committee as a participating entity
hereunder.

                 2.2        
Beneficiary means the person, persons, entity or entities
designated by a Participant
to receive death benefits hereunder.

                 2.3        
Benefit Commencement Date means the date on which the payment of a
Participant's service benefit is paid or first commences.  Such date shall be designated by each
Participant on Schedule A.

                 2.4        
Board or Board of Directors means the Board of Directors of the Company.

                 2.5            
  Change in Control means and shall be deemed to have occurred in accordance with
Section 12(b) of the Hancock Holding Company 1996 Long-Term Incentive Plan, as amended from
time to time, or in accordance with the provisions of any successor thereto.

                 2.6          
    Committee means the members of the Compensation Committee of the Board of
Directors of the Company.

                 2.7           
   Common Stock means $3.33 par value voting common stock issued by the
Company.

                 2.8            
  Common Stock Credits means units representing shares of Common Stock.

                 2.9          
    Deferral Election means an election by an Eligible Director to defer Fees, which
election shall be made, in writing, in accordance with the provisions of Article VI hereof.

                 2.10          
   Deferred Benefit Account means an account maintained on the books of the
Company with respect to a Participant hereunder.

                 2.11          
  Determination Date means the Annual Determination Date and such other dates as
may be designated by the Committee, from time to time.  Annual Determination Date means the
last day of the Plan Year.

                 2.12         
   Eligible Director means an individual, other than a common-law employee of the
Company or an Affiliate, who serves as a member of the Board of Directors of the Company or as
an advisory member of the Board of Directors of an Affiliate, provided that such Affiliate is
designated by the Committee as a participating Affiliate hereunder.

                 2.13           
  Fair Market Value means, with respect to Common Stock, the mean of the bid and
asked prices of Common Stock as quoted on the National Association of Securities Dealers
Automated Quotation System National Market System (NasdaqNM) or other exchange on which
Common Stock is regularly traded as of the date specified herein.  If no Common Stock is traded on
such date, then Fair Market Value shall be the mean of the closing bid and asked prices on the date
Common Stock last traded on such system or exchange.  If Common Stock is not regularly traded,
then Fair Market Value shall be the value of Common Stock determined by the Committee in
accordance with generally accepted methods of valuation.

                 With respect to other property, Fair Market Value shall be determined
 in the discretion of the
Committee, utilizing generally recognized valuation principals, which may include pricing services
(including brokers, dealers and market makers and similar information).

                 2.14           
  Fees means the compensation paid by the Company or an Affiliate to each Eligible
Director for his or her service as a member of the Board of Directors (or an advisory member of the
Board of Directors of an Affiliate), for service on certain committees thereof, and for any bonuses
earned or other compensation paid as a director, whether payable in the form of cash or Common
Stock.

                 2.15          
   Participant means an Eligible Director who is designated in accordance with Article
IV hereof and who elects to participate in the Plan through execution of a Deferral Election in
accordance with Section 2.18 hereof.

                 2.16         
    Plan means this Hancock Holding Company Directors Deferred Compensation Plan,
as amended from time to time.

                 2.17          
   Plan Year means the 12-month period beginning each January 1st and ending each
December 31st.

                 2.18          
   Schedule A means a written schedule which provides for (a) the deferral of a
Participant's Fees, (b) the designation of a Benefit Commencement Date, and (c) the election of the

form of benefit payment.  The terms of any such Schedule A are incorporated in this Plan by this
reference.

                 2.19           
 Other Definitions.  The following terms shall have the meanings ascribed below:
"Affected Director" and "Exchange Act" are defined in Section 7.8 hereof; "Financial Hardship"
is defined in Section 10.1 hereof; "Adverse Determination" is defined in Section 10.2 hereof; and
"Disabled or Disability" is defined in Section 10.4 hereof.

                                                    ARTICLE III

                                               RESERVATION OF SHARES

                 3.1            
  Number and Type of Shares.  Subject to adjustment as provided in Section 3.3
hereof, no more than 100,000 shares of Common Stock shall be issued hereunder.  Except as
provided in Section 3.2 hereof, the number of shares available for transfer, issuance or other payment
under the Plan shall be reduced by the number of shares actually transferred, issued or paid
hereunder.  Common Stock issued under the Plan may be authorized and unissued shares, issued
shares held as treasury shares, shares acquired on the open market or through private purchase;
provided, however, if shareholder approval of the Plan is not obtained, Common Stock shall be
issued solely from treasury shares.

                 3.2         
     Cancellation.  Shares of Common Stock that are exchanged for other forms of
compensation hereunder shall again be available for issuance under the Plan.

                 3.3           
   Adjustment.  In the event of any merger, consolidation or reorganization of the
Company with another entity, there shall be substituted for each of the shares of Common Stock then
subject to the Plan the number and kind of shares of stock or other securities to which the holders
of Common Stock are entitled in the transaction.

                 In the event of any recapitalization, stock dividend, stock split,
 combination of shares or
other change in the number of shares of Common Stock then outstanding for which the Company
does not receive consideration, the number of shares of Common Stock then subject to the Plan shall
be adjusted in proportion to the change in outstanding shares of Common Stock.

                                                     ARTICLE IV

                                           ELIGIBILITY AND PARTICIPATION

                 Participants hereunder shall be Eligible Directors of the
 Company and Eligible Directors of
an Affiliate, provided the Committee has designated such Affiliate as a participating Affiliate
hereunder.  The Affiliates designated on Exhibit A (attached hereto) are the initial participating
Affiliates.  The Committee shall notify each Eligible Director of his or her eligibility to participate
in this Plan.  Participation shall commence upon the execution of a Schedule A or similar agreement
as provided herein.

                                                     ARTICLE V

                                                        FEES

                 5.1            
  Stock in Lieu of Fees.  Each Eligible Director shall be entitled to elect to receive all
or a portion of his or her Fees in the form of Common Stock, instead of in cash.  Such election shall
be made, in writing, and shall be effective (a) as of the first day of the Plan Year following the date
on which such election is received and accepted by the Committee, or (b) with respect to initial
participation hereunder, for Fees payable for services rendered after such election is received and
accepted by the Committee, provided such election is received not later than 30 days after such
participation commences.  An election shall remain in effect until it is modified or revoked, such
modification or revocation to be effective as of the first day of the Plan Year following the date it
is received and accepted by the Committee.

                 The number of shares issued to the Eligible Director shall equal the
quotient of:

                 a.          The amount of Fees that the Eligible
Director elects to receive in the form of
                  Common                 Stock;
divided by

                 b.       The Fair Market Value of Common Stock,
determined as of the first business day
                 following
                the meeting with respect to
 which the Fees are paid or payable.

                 5.2          
    Certification.  Certificates representing shares of Common Stock issued under this
Article V shall be issued at least as frequently as each Annual Determination Date.

                                                     ARTICLE VI

                                                 DEFERRAL ELECTIONS

                 6.1         
     Deferrals.  An Eligible Director may elect, by execution and delivery of Schedule
A, to defer all or a portion of his or her Fees as follows:

        a.       Deferral Election.  On or before December 31st of any Plan Year; such election
                 shall be effective with respect to Fees payable for services performed during the
                 following Plan Year;

        b.       Newly Eligible Directors.  During the 30-day period immediately following receipt
                 of initial notice from the Committee in accordance with Article IV hereof; such
                 election shall be effective with respect to Fees payable for services performed after
                 such election is received and accepted by the Committee; or

         c.       Initial Plan Year.  On or before January 31, 2001; such election shall be effective
                  with respect to Fees payable for services performed after such election is received
                  and accepted by the Committee, but not earlier than February 1, 2001.

An election to defer Fees hereunder shall be made, in writing, and shall be irrevocable during the Plan
Year with respect to which the election relates or such longer period as may be
designated by the Committee. An election hereunder shall remain in effect until
it is revoked or modified. 

              The Committee, in its discretion, may limit the amount of Fees subject to deferral
 hereunder,
may prescribe a minimum deferral amount, or adopt such additional procedures, as the Committee
deems necessary or appropriate.  The Committee shall notify all affected Participants, in writing, of
any such limitations.  Any such procedures, conditions, limitations or designations shall be effective
as of the January 1st which coincides with or immediately follows the date on which notice is
provided to each Participant hereunder or at such other time as the Committee may designate.

        6.2         
 Establishment of Deferred Benefit Account.   The Company shall establish and
maintain a Deferred Benefit Account for the benefit of each Participant, which shall be credited
with an Eligible Director's Fees deferred hereunder.  A Deferred Benefit Account may be
administered as one or more subaccounts to facilitate (a) a particular method of crediting income,
gain or losses, (b) the administration of Common Stock Credits and dividend equivalent units, or
(c) for such other purpose as the Committee may deem necessary or appropriate.

        6.3         
 Allocation of Fees.  Fees deferred hereunder shall be credited to each
Participant's Deferred Benefit Account and deemed invested in accordance with the provisions
of Article VII hereof not later than 30 days following the last day of the calendar month in which
such Fees were otherwise payable to Participant hereunder.

                                                    ARTICLE VII

                              MAINTENANCE AND INVESTMENT OF DEFERRED BENEFIT ACCOUNTS

        7.1         
Status of Account.  A Deferred Benefit Account established hereunder shall be by
bookkeeping entry only.  The establishment and maintenance of any such account shall not be
deemed to create a trust or other form of fiduciary relationship between the Company (or an
Affiliate) and any Participant or Beneficiary or otherwise create, for the benefit of any Participant
or Beneficiary, an ownership interest in or expectation of any specific asset of the Company (or of
an Affiliate).

        7.2         
Investment Policy.  The Committee shall establish an investment policy with respect
to amounts credited to Deferred Benefit Accounts maintained hereunder, in the form of Exhibit B
hereto.  Such policy may provide for the investment of such accounts or permit investment in
accordance with the specifications of each Participant or Beneficiary or for a combination thereof.
Such determination shall be made in the sole discretion of the Committee and need not be uniform
as to all accounts maintained hereunder.  If the Committee determines that the accounts shall be
aggregated for investment purposes, the Committee, in its discretion, shall direct the manner in
which gain or loss is determined hereunder.  If the Committee permits Participants to provide
investment specifications with respect to Deferred Benefit Accounts, such specifications shall
comply with the provisions of Section 7.4 hereof.

        7.3         
  Investment Specifications.  Investment specifications by a Participant hereunder
shall be deemed to be advisory only and shall not bind the Company, an Affiliate or the Committee
to acquire any specific property or to invest the assets of any trust established in connection with this

Plan in accordance
therewith. Such specifications shall relate to investment in the types of
property, including open or closed end mutual funds, common or collective funds
or other pooled or collective accounts, as may be designated, from time to time,
by the Committee. The Committee shall adopt rules governing investment
specifications hereunder, including, without limitation (a) the increments in
which such specifications shall be expressed, (b) the times at which changes can
be made, (c) distinctions between the investment of prospective contributions
and existing account balances, and (d) such other procedures as the Committee
may determine are necessary or appropriate. Such procedures need not be uniform
as to all Participants. 

              If a Participant ceases to be an Eligible Director of the Company or an Affiliate for any
reason, the Committee, in its sole discretion, may direct that gain or loss credited to such
Participant's Deferred Benefit Account be determined with respect to one or more investments
designated by the Committee or may permit such Participant or Beneficiary to continue to specify
the investments in which his or her accounts is deemed to be invested.  Such determination shall be
made in the sole discretion of the Committee and need not be uniform as to all Participants.

      

        7.4         
 Common Stock Credits.  The following rules shall apply to Common Stock Credits
hereunder:

     a.  The number of Common Stock Credits allocated to a Participant’s Deferred Benefit Account shall be based upon the
         Fair Market Value of Common Stock as of the date determined in accordance with Section 6.3 hereof.

     b.  Prior to the distribution of Common Stock hereunder, a Participant shall not be entitled to vote or have any other rights
         as a shareholder with respect to amounts deemed invested in Common Stock Credits.

     c.  Notwithstanding any provision of the Plan to the contrary, amounts deemed invested in Common Stock Credits shall be
         distributed or withdrawn in the form of Common Stock, with cash distributed in lieu of a fractional share.

              An amount equal to dividends payable with respect to Common Stock represented by the
Common Stock Credits allocated to a Participant's Deferred Benefit Account shall be credited to
such account and deemed automatically reinvested in additional Common Stock Credits not later
than the last day of the calendar month following the applicable dividend payment date.

        7.5         
   Accounting.  At least as frequently as each Annual Determination Date Participant's
Deferred Benefit Account shall be adjusted as follows:

     a.  Interest, gain or loss, including, without limitation, dividend equivalent units, shall be credited (or charged) to the
         Participant’s Deferred Benefit Account for the period since the immediately preceding Determination Date.

     b.   The Participant's Deferred Benefit Account shall be reduced by any payment or other form

          of distribution or transfer made since the immediately preceding Determination Date.

The Committee (or its
designee) shall adopt such recordkeeping rules and procedures as are reasonably
necessary to implement the provisions of this Section 7.5

         7.6         
  Valuation Notice.  At least as frequently as each Annual Determination Date, the
Committee shall furnish each Participant with a valuation notice which includes the amounts
credited to the Participant's Deferred Benefit Account and the earnings, gains or losses allocated to
such account since the immediately preceding Determination Date.

         7.7         
 Investment Limitations for Affected Directors.  The term "Affected Director"
shall mean an Eligible Director who is described in Section 16(a) of the Securities Exchange Act of
1934, as amended (the "Exchange Act").  An Affected Director shall be entitled to modify his or
her investment specifications in accordance with Section 7.4 and Exhibit B hereto with respect to
transfers into or out of Common Stock Credits, provided that he or she obtains the prior consent of
the Committee (or its designee), which consent may be withheld for any period  deemed necessary
to comply with Rule 16b-3 promulgated under the Exchange Act.

                                                    ARTICLE VIII

                                                  SERVICE BENEFITS

 
         8.1      Manner of Payment.  A service benefit shall be payable in accordance with the
Participant's election on Schedule A in the form of:

         a.       Substantially equal annual installment payments for a period designated by such
                  Participant, but not in excess of ten consecutive years; or

         b.       A single-sum payment.

If no election is received
by the Committee, or if a Participant’s election cannot be administered,
such Participant’s service benefit shall be distributed in the form of a
single-sum payment.

         8.2      Form of Payment.  If the Committee directs that a Participant's deferrals hereunder
shall be deemed invested in Common Stock Credits or if a Participant directs investment in Common
Stock Credits, then any distribution with respect to such deferrals shall be made in the form of
Common Stock, with cash distributed in lieu of a fractional share.  Distributions with respect to
deferrals deemed invested in mutual or similar pooled funds shall be distributed in cash.

         8.3      Amount of Service Benefits.  The amount of a Participant's service benefit
hereunder shall equal the amount credited to such Participant's Deferred Benefit Account,
determined in accordance with the following rules:

         a.       If such benefit is paid in the form of a single-sum, such benefit shall equal the
                  amount credited to such Participant's Deferred Benefit Account as of the

                  Determination Date that corresponds to or immediately follows such Participant’s Benefit
                  Commencement Date.

         b.       If such benefit is paid in the form of installments, the amount of each annual
                  installment shall equal the value of the Participant’s Deferred Benefit
                  Account as of the Annual Determination Date that coincides with or immediately
                  precedes the payment date multiplied by a fraction (i) the numerator of which is
                  one, and (ii) the denominator of which is the number of annual installments
                  remaining to be paid pursuant to the Participant’s election. The portion of
                  such Participant’s Deferred Benefit Account deemed invested in Common Stock
                  Credits, if any, shall be distributed first; thereafter, the remaining
                  investments of such Participant’s Deferred Benefit Account shall be
                  liquidated pro rata and distributed. During any installment payment period, a
                  Participant’s Deferred Benefit Account shall be credited with income, gain
                  or loss in accordance with the provisions of Article VII hereof.

         8.4      Time of Payment.  A Participant's service benefit shall be payable (or payments shall
commence) as soon as administratively feasible after each Participant's Benefit Commencement
Date.  Thereafter, if a Participant's service benefit is payable in the form of annual installments, each
remaining installment shall be paid on or before April 1st.

         8.5      Single-Sum Payment.  If the value of a Participant's Accounts is $25,000 or less as
of his or her Benefit Commencement Date, then notwithstanding any provision of this Plan to the
contrary, the Committee shall distribute such amount to the Participant in the form of an immediate
single-sum payment as of such date.  No additional benefit shall be payable with respect to such
Participant.

         8.6      Schedule A.  Each Participant shall execute a Schedule A at the time his or her
participation hereunder commences.  The terms of such Schedule A shall apply to the aggregate
amount credited to the Participant's Deferred Benefit Account, without regard to any subaccounts
established thereunder.  Each Participant shall be entitled to modify his or her Schedule A, from time
to time, with respect to the designation of a Benefit Commencement Date or the manner in which
his or her service benefit is distributed hereunder; provided, however, that any such modification
shall be effective only if received and accepted by the Committee at least 18 months prior to the
cessation of his or her service on the Board of Directors of the Company and all Affiliates.

                                                     ARTICLE IX

                                                   DEATH BENEFITS

         9.1      Beneficiary Designation.  A Participant shall be entitled to designate one or more
Beneficiaries on forms provided by the Committee.   Any such designation may be modified by
delivery of a new designation to the Committee. Any designation or modification shall be effective
upon its receipt and acceptance by the Committee.  If a Participant fails to designate a Beneficiary
or if a Participant's designation cannot be administered, the Participant's estate shall be deemed his
or her Beneficiary hereunder.

         9.2      Participant's Death Before Benefit Commencement Date.  If a Participant dies
before his or her Benefit Commencement Date, the Participant's Beneficiary shall be paid a death
benefit in the form of five substantially equal installment payments, commencing as soon as
practicable after the Annual Determination Date following the date of the Participant's death.  The
amount of the death benefit shall equal the amount of the Participant's Deferred Benefit Account,
determined as of the Annual Determination Date that coincides with or immediately precedes the
date of distribution.

         The amount of each annual installment shall equal the value of the deceased Participant's
Deferred Benefit Account as of the Annual Determination Date that coincides with or immediately
precedes payment, multiplied by a fraction (a) the numerator of which is one, and (b) the
denominator of which is the number of annual installments remaining to be paid.  The portion of
such account deemed invested in Common Stock Credits shall be distributed first; thereafter, the
remaining investments of such account shall be liquidated pro rata and distributed.  During the
installment period, the deceased Participant's Deferred Benefit Account shall be credited with
income, gain or loss in accordance with the provisions of Article VII hereof.

         9.3      Participant's Death After Benefit Commencement Date.  If a Participant dies after
his or her Benefit Commencement Date, the Company shall pay to the Participant's Beneficiary the
remaining benefit, if any, that would otherwise be payable to the deceased Participant, determined
in accordance with the terms of his or her Schedule A.

         9.4      Death of Beneficiary.  In the event of the death of a Beneficiary, the remaining
benefit to which such Beneficiary was entitled at the time of such Beneficiary's death, if any, shall
be payable to the beneficiary or beneficiaries designated in writing, by such Beneficiary on a form
submitted by such Beneficiary to the Committee (or such benefits shall be payable to the
Beneficiary's estate if the Beneficiary fails to designate a beneficiary or beneficiaries).

         9.5      Single-Sum Payment.  If the value of a death benefit payable hereunder is $25,000
or less, then notwithstanding any provision of this Plan to the contrary, the Committee shall
distribute such amount to the Participant's Beneficiary or Beneficiaries in the form of a single-sum
payment, and no additional benefit shall be payable under this Plan with respect to such Participant.

         9.6      Form of Payment.  If the Committee directs that an amount deferred hereunder shall
be deemed invested in Common Stock Credits or if a Participant or Beneficiary elects investment
in Common Stock Credits, then any distribution with respect to such deferral shall be made in the
form of Common Stock, with cash distributed in lieu of a fractional share.  Distributions with respect
to deferrals deemed invested in mutual or similar pooled funds shall be distributed in cash.

                                                     ARTICLE X

                                    HARDSHIP WITHDRAWALS AND OTHER DISTRIBUTIONS

         10.1     Hardship Withdrawal.  If a Participant experiences a Financial Hardship, such
Participant may request the Committee to approve the withdrawal of all or a portion of his or her
Deferred Benefit Account in the form of an immediate single-sum payment, subject to the limitations
set forth below.

         a.       "Financial Hardship" means the occurrence of a severe financial hardship resulting
                  from extraordinary and unforeseeable circumstances beyond the control of a
                  Participant.

         b.       A request for withdrawal shall be made, in writing, and shall set forth the
                  circumstances surrounding the Financial Hardship. As a condition of and part of
                  such request, the Participant shall provide to the Committee his or her written
                  representation that (i) the hardship cannot be relieved by insurance or other
                  reimbursement reasonably available to the Participant, (ii) the hardship can
                  only be relieved by liquidation of the Participant’s assets and any such
                  liquidation would itself result in severe damage or injury to the Participant,
                  and (iii) the Participant has no reasonable borrowing capacity to relieve the
                  hardship. The Committee shall be entitled to request such additional information
                  as may be reasonably required to determine whether a Financial Hardship exists
                  and the amount of the hardship and to establish additional conditions precedent
                  to the review or granting of a request for a withdrawal on account of a
                  Financial Hardship.

         c.       If the Committee determines that a Financial Hardship exists, the Committee may
                  authorize the immediate distribution of an amount required to meet the financial
                  need created by such hardship, including any taxes payable on account of such
                  distribution.

         d.       The amount of a withdrawal on account of a Financial Hardship shall reduce the
                  amount credited to a Participant’s Deferred Benefit Account; such account
                  shall be reduced by an additional amount equal to 10% of the hardship
                  distribution.

          e.      Withdrawal hereunder shall be made by the pro rata liquidation of the then
                  current investment designations; provided, however, that Common Stock Credits
                  shall be liquidated last.

          f.      The Committee shall require, as a condition of any withdrawal on account of a
                  Financial Hardship, that the affected Participant’s deferral election shall
                  immediately cease. The affected Participant shall not be entitled to enter into
                  a new election to defer Fees hereunder for the 12-month period following such
                  withdrawal.

           g.     The Committee may establish such additional rules as may be reasonably required
                  to administer the withdrawal of amounts under this Section 10.1. Such rules may
                  include, but shall not be limited to, the imposition of additional conditions
                  precedent to the withdrawal, the determination of the amount of any benefit
                  reduction, and the disposition of any terminated deferral election under Section
                  10.1f, hereof. The determination by the Committee as to all matters pertaining
                  to a Financial Hardship shall be final and binding upon all affected
                  Participants and Beneficiaries.

         10.2     Early Payments.  Notwithstanding any provision of this Plan to the contrary, the
Committee may direct the distribution to any Participant (or Beneficiary) in the form of an
immediate single-sum payment all or any portion of the amount then credited to a Participant's
affected Deferred Benefit Account, if an Adverse Determination is made with respect to such
Participant.  For this purpose, the term "Adverse Determination" shall mean that, based upon
Federal tax or revenue law, a published or private ruling or similar announcement issued by the
Internal Revenue Service, a regulation issued by the Secretary of the Treasury, a decision by a court
of competent jurisdiction, a closing agreement made under Section 7121 of the Code that is approved
by the Internal Revenue Service and involves such Participant or a determination of counsel, a
Participant has or will recognize income for Federal income tax purposes with respect to any amount
that is or will be payable under this Plan before it is otherwise to be paid hereunder.

         Notwithstanding the provisions of this Section 10.2, any payment on account of an adverse
determination shall be made in accordance with an opinion of counsel that such payment complies
with any restrictions or limitations imposed under applicable Federal or state securities laws.

         10.3     Change in Control.  Notwithstanding any provision of this Plan to the contrary, upon
the occurrence of a Change in Control, the Committee shall provide each Participant with written
notice of the occurrence of such change.  Each Participant may request distribution of all or a portion
of his or her Deferred Benefit Account by providing written notice to the Committee, within 30 days
of receipt of notice of such event, which notice shall designate the amount to be withdrawn.  Any
such withdrawal shall be subject to the following rules and limitations:

         a.       Such withdrawal shall be made not later than 30 days after notice is received by the
                  Committee;

         b.       No more than one such withdrawal shall be permitted hereunder;

         c.       At the time of such withdrawal, the Participant's Deferred Benefit Account shall be
                  reduced by the amount of the withdrawal and an additional amount equal to 10% of
                  such withdrawal; and

         d.       Withdrawal hereunder shall be made by the pro rata liquidation of the then
                  current investment designations; provided, however, that Common Stock Credits
                  shall be liquidated last.

         10.4     Disability.  If a Participant becomes Disabled, he or she shall be entitled to request
the withdrawal of all or a designated portion of his or her Deferred Benefit Account by providing
written notice to the Committee at any time after such Disability commences.  "Disabled or
Disability" means that a Participant would be receiving benefits under the Company's (or an
Affiliate's) separate long-term disability plan, if such director were a participant therein or that such
Participant is actually receiving long-term disability benefits under a separate policy or arrangement
or Social Security disability benefits.  The Committee shall determine whether a Participant is or
becomes Disabled.  The Committee shall distribute the affected portion of such Participant's
Deferred Benefit Account as soon as practicable after receipt of written notice, subject to the
following rules and limitations:

         a.       No more than two such withdrawals shall be permitted hereunder;

         b.       At the time of each such withdrawal, the affected Participant's Deferred Benefit
                  Account shall be reduced by the amount of such withdrawal and an additional
                  amount equal to 10% of the distribution; and

         c.       Withdrawal hereunder shall be made by the pro rata liquidation of the then
                  current investment designations; provided, however, that Common Stock Credits
                  shall be liquidated last.

                                                     ARTICLE XI

                                                PLAN ADMINISTRATION

         11.1     Powers.  The Committee shall administer this Plan and all matters related thereto.
The Committee shall have the power and authority to interpret the provisions of this Plan and shall
determine all questions arising under the Plan including, without limitation, all questions concerning
administration, eligibility, the determination of benefits hereunder, and the interpretation of any form
or other document related to this Plan.  In addition, the Committee shall have the authority to
prescribe, amend and rescind rules and administrative procedures relating to the operation of this
Plan, to instruct any trustee as to the investment of any asset held for the purposes described in
Section 13.3 hereof, and to correct any defect, supply any omission or reconcile any inconsistency
in this Plan.

         Any determination by the Committee need not be uniform as to all or any Participant or
Beneficiary hereunder.  Any such determination shall be conclusive and binding on all persons.  The
Committee shall engage the services of such independent actuaries, accountants, attorneys and other
administrative personnel, as it deems necessary to administer the Plan.

         11.2     Payments.  The Committee shall have the power and authority to determine the time
and amount of any distribution or withdrawal hereunder.  The Committee shall direct the trustee of
any trust established pursuant to Section 13.3 hereof, in writing, as to any such distribution or
withdrawal.

         11.3     Delegation of Administrative Authority.  The Committee, in its sole discretion,
may delegate to officers of the Company (or an Affiliate) all or any portion of the power and
authority granted to it hereunder subject to such limitations, restrictions and conditions as the
Committee may provide.  When acting in accordance with such delegation (whether made orally or
in writing), such persons shall be deemed to possess the power and authority granted to the
Committee hereunder.

         11.4     Expenses.  Any cost or expense of administering the Plan shall be paid by the
Company and/or participating Affiliates.

         11.5     Exemption from Liability; Indemnification.  The members of the Committee and
the persons acting on behalf of the Committee shall be free from liability for their acts, omissions,
and conduct in the administration of the Plan, except for those acts, omissions and conduct resulting
from willful misconduct or lack of good faith.

         The Company shall indemnify each member of the Committee, the persons acting on behalf
of the Committee and any other employee, officer or director of the Company or its Affiliates against
any claims, loss, damage, expense and liability, by insurance or otherwise, reasonably incurred by
the individual in connection with any action or failure to act by reason of performance of an
authorized duty or responsibility for or on behalf of the Company pursuant to the Plan unless the
same is judicially determined to be the result of the individual's gross negligence or willful
misconduct.  Such indemnification by the Company shall be made only to the extent such expense
or liability is not payable to or on behalf of such person under any liability insurance coverage.  The
foregoing right shall be in addition to any other rights to which such person may be entitled to as a
matter of law.

                                                    ARTICLE XII

                                                PARTICIPANTS' RIGHTS

         12.1     Spendthrift Provision.  Neither a Participant nor any other person shall have any
right to commute, sell, assign, transfer, pledge, anticipate, mortgage or otherwise encumber any
amount payable hereunder.  No amount payable under this Plan shall, prior to actual payment, be
subject to seizure or sequestration for the payment of any debt, judgment, alimony or separate
maintenance owed by a Participant or any other person.  No amount payable under this Plan shall
be transferable by operation of law in the event of a Participant's or other person's bankruptcy or
insolvency.

         12.2     Claim for Benefits.  Each Participant or Beneficiary claiming any right under this
Plan must give written notification thereof to the Committee.  If a claim is denied, the denial shall
be contained in a written notice stating the following:

         a.       The specific reason for the denial;

         b.       Specific reference to the Plan provision on which the denial is based;

         c.       Description of additional information necessary for the claimant to present his or her
                  claim, if any, and an explanation of why such material is necessary; and

         d.       An explanation of the Plan's claim review procedure.

The claimant will have 60 days to request a review of any denial by the Committee. The request for review must
be in writing and delivered to the Committee, which will then provide a full and fair review. The claimant may
review pertinent documents and may submit issues and comments in writing. The decision by the Committee with
respect to the review must be given within 60 days after receipt of the request, unless special circumstances
require an extension (such as for a hearing). In no event shall the decision be delayed beyond 120 days after
receipt of the request for review. The decision shall include specific reasons and refer to the specific
Plan provisions on which it is based.

         12.3     Obligation for Benefit Payments.  Notwithstanding any provision of this Plan to
the contrary, the payment of benefits under this Plan shall remain the obligation of the Company or
any such Affiliate.  In the event the Company designates a third-party as the payor of the benefits
and the assets of such third-party are insufficient to meet the payment obligations of the Company
or an Affiliate, the Company or such Affiliate shall remain responsible for such deficiency.

         12.4     Tax Reporting.  The Company or an Affiliate or any third-party payor shall report,
and if necessary, withhold from the payment benefits hereunder any amount required to be withheld
under applicable Federal or state tax laws.

                                                    ARTICLE XIII

                                                    MISCELLANEOUS

         13.1     Termination of Plan.  The Board of Directors shall have the right, at any time, to
terminate this Plan.  The Board shall provide written notice of such termination to each Participant
hereunder.  In the event of any such termination, the deferral of Fees hereunder shall immediately
cease.  During the 30-day period immediately following receipt of such notice, each Participant shall
be entitled to elect a distribution of all or a portion of the amount then credited to his or her Deferred
Benefit Account in the form of an immediate single-sum payment.  In the event a Participant elects
a single-sum payment hereunder, the value of his or her Deferred Benefit Account shall be reduced
by the amount of the payment and an additional amount equal to 10% of the amount of such
payment.

         13.2     Amendment and Modification.  The Board of Directors of the Company may amend
this Plan, in its discretion; provided, however, that any amendment adversely affecting amounts then
credited to a Participant's Deferred Benefit Account hereunder shall be approved by each affected
Participant (or his or her Beneficiary).

         Notwithstanding the foregoing, however, the consent of any Participant or Beneficiary shall
not be required if the Board of Directors reasonably determines that an amendment is necessary to

ensure that amounts credited to a Participant’s Deferred Benefit Account is not subject to
federal income taxation until withdrawn or distributed or to ensure that the Plan is deemed to be
unfunded within the meaning of the Employee Retirement Income Security Act of 1974, as amended.

         13.3     Funding.  The Company may, in its discretion, establish a trust in connection with
this Plan.  Each year during the continuance of this Plan, the Committee may designate amounts or
property to be added to the trust on behalf of the Company or an Affiliate.  The property comprising
the assets of such trust, including any insurance policy on the life of a Participant purchased by such
trust or contributed to such trust by the Company or an Affiliate, shall at all times remain the
property of such trust.  The trustee of such trust shall distribute the assets comprising such trust in
accordance with the provisions and the trust agreement, all as instructed by the Committee, but in
no event shall such trustee distribute the assets of such trust to or for the benefit of the Company or
any Affiliate, except as provided in the trust agreement.

         No Participant or Beneficiary shall have the right to, or claim under or against, any insurance
policy on the life of the Participant obtained by the Company or an Affiliate or any asset held in trust
to help defray the cost incurred in providing benefits under this Plan.  Any such policy or other
property shall be, and remain, a general, unpledged asset of the Company or an Affiliate or the trust,
as the case may be.

         13.4     Inurement.  This Plan shall be binding upon and shall inure to the benefit of the
Company and each Participant hereto and their respective heirs, executors, administrators, successors
and assigns.

         13.5     Governing Law.  This Plan is governed by the internal laws of the State of
Mississippi, in all respects, including matters of construction, validity and performance.

         THIS PLAN was approved by the Board of Directors of Hancock Holding Company on
December 14, 2000, to be effective as of January 1, 2001.

                                                               HANCOCK HOLDING COMPANY

                                                               By: _____________________________

                                                               Its: ____________________________

                                     HANCOCK HOLDING COMPANY
                              DIRECTORS DEFERRED COMPENSATION PLAN

                                            EXHIBIT A
                                INITIAL PARTICIPATING AFFILIATES

        This
Exhibit A is intended to form a part of the Hancock Holding Company Directors
Deferred Compensation Plan and to be deemed incorporated therein by this
reference. In accordance with Article IV of the Plan, the following Affiliates
shall be deemed to be participating Affiliates in the Plan, without the
necessity of further action: 

1.      Hancock Bank

2.      Hancock Bank of Louisiana

3.      Bank of Wiggins

4.      Hancock Investment Services, Inc.

5.      Harrison Finance Company

6.      Hancock Insurance Agency

7.      Hancock Mortgage Corporation

                                     HANCOCK HOLDING COMPANY
                              DIRECTORS DEFERRED COMPENSATION PLAN

                                            EXHIBIT B
                                        INVESTMENT POLICY

This Exhibit B is intended to form a part of the Hancock Holding Company Directors Deferred Compensation
Plan and to be deemed incorporated therein by this reference.

        1.     Policy.  In accordance with Section 7.3 of the Plan, each Participant shall be
permitted to provide investment specifications with respect to amounts credited to his or her
Deferred Benefit Account.

        2.     Investment Options.  Investment specifications shall relate to:

        a.     Units of the Hancock Horizon Treasury Securities Money Market Fund, or any
               successor thereto;

        b.     Units of the Hancock Horizon Strategic Income Bond Fund, or any successor thereto;

        c.     Units of the Hancock Horizon Growth and Income Fund, or any successor thereto;
               and

        d.     Common Stock Credits.

        3.     Instructions.  The following rules shall govern investment specifications hereunder:

        a.     Investment specifications shall be expressed in increments of 5%.

        b.     Investment specifications shall be separately stated with respect to prospective
               contributions and existing account balances.

        c.     Except as may be expressly provided in the Plan or as required to comply with
               applicable law, a Participant can modify his or her investment directions as of
               each Annual Valuation Date by delivery of written instructions to the Committee
               at least 10 days prior to such date.

        4.     Additional Policies and Procedures.  The Committee may establish additional
investment policies and procedures or amend this policy, in its discretion, from time to time.<PAGE>

                                                                    Exhibit 10.1

                            UNIT PURCHASE AGREEMENT

                                     among

                          ONYX SOFTWARE CORPORATION,

                                REVENUELAB, LLC

                                      and

                        THE MEMBERS OF REVENUELAB, LLC

                          Dated as of January 5, 2001
<PAGE>

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                   Page
<S>                                                                                                <C>
ARTICLE I        - PURCHASE AND SALE OF UNITS...................................................   1

     1.1       Purchase and Sale of Units.......................................................   1

     1.2       Closing..........................................................................   1

     1.3       Consideration for Units..........................................................   1

     1.4       Method of Deferred Payment.......................................................   3

     1.5       Option Grants....................................................................   3

ARTICLE II       - REPRESENTATIONS AND WARRANTIES OF THE COMPANY AND THE FOUNDERS...............   4

     2.1       Organization; Power and Authority................................................   4

     2.2       Enforceability...................................................................   4

     2.3       Capitalization...................................................................   5

     2.4       Subsidiaries and Affiliates......................................................   5

     2.5       No Approvals; No Conflicts.......................................................   6

     2.6       Financial Statements.............................................................   6

     2.7       Absence of Certain Changes or Events.............................................   6

     2.8       Taxes............................................................................   8

     2.9       Property.........................................................................   8

     2.10      Contracts........................................................................   9

               2.10.1   Material Contracts......................................................   9

               2.10.2   Required Consents.......................................................  10

     2.11      Corporate Books and Records......................................................  10

     2.12      Claims and Legal Proceedings.....................................................  10

     2.13      Labor and Employment Matters.....................................................  10

     2.14      Employee Benefit Plans...........................................................  11

     2.15      Intellectual Property............................................................  12

     2.16      Licenses, Permits, Authorizations, Etc...........................................  12

     2.17      Compliance With Laws.............................................................  12

     2.18      Insurance........................................................................  13

     2.19      Brokers or Finders...............................................................  13

     2.20      Bank Accounts....................................................................  13

     2.21      Insider Interests................................................................  13

     2.22      Full Disclosure..................................................................  14
</TABLE>

                                      -i-
<PAGE>

                               TABLE OF CONTENTS
                                  (continued)
<TABLE>
<S>                                                                                               <C>
     2.23      Domain Name Transfer............................................................   14

     2.24      Warrant Held by the Company.....................................................   14

ARTICLE IIA      - REPRESENTATIONS AND WARRANTIES OF THE MEMBERS...............................   14

               2A.1   Good Title...............................................................   14

               2A.2   Authority................................................................   15

               2A.3   Enforceability...........................................................   15

               2A.4   No Approvals or Notices Required; No Conflicts...........................   15

               2A.5   Claims Against the Company...............................................   16

               2A.6   Sophistication; Accreditation............................................   16

               2A.7   Information..............................................................   16

               2A.8   No Registration..........................................................   16

               2A.9   Brokers or Agents........................................................   17

               2A.10  Investment for Own Account...............................................   17

               2A.11  Residency................................................................   17

               2A.12  Legends..................................................................   17

               2A.13  Tax Matters..............................................................   18

Article III      - REPRESENTATIONS AND WARRANTIES OF ONYX......................................   18

     3.1       Organization....................................................................   18

     3.2       Enforceability..................................................................   18

     3.3       Securities......................................................................   19

     3.4       No Approvals or Notices Required; No Conflicts With Instruments.................   19

     3.5       SEC Documents; SEC Reporting....................................................   19

     3.6       Absence of Certain Changes......................................................   19

     3.7       Full Disclosure.................................................................   19

Article IV       - DELIVERIES..................................................................   20

     4.1       Deliveries of the Company and the Members.......................................   20

     4.2       Deliveries by Onyx..............................................................   21

Article V        - POST-CLOSING COVENANTS......................................................   22

     5.1       Delivery of Certificates........................................................   22

     5.2       Further Action; Commercially Reasonable Efforts.................................   22

     5.3       Tax Treatment...................................................................   22
</TABLE>

                                     -ii-
<PAGE>

                               TABLE OF CONTENTS
                                  (continued)

<TABLE>
<S>                                                                                               <C>
     5.4       Publicity.......................................................................   23

     5.5       Noncompetition Agreement........................................................   23

     5.6       Lock-Up Agreement...............................................................   23

     5.7       Assumption of Certain Obligations...............................................   24

Article VI       - SURVIVAL AND INDEMNIFICATION................................................   24

     6.1       Survival........................................................................   24

     6.2       Indemnification by the Members..................................................   24

     6.3       Threshold and Limitations.......................................................   25

     6.4       Procedure for Indemnification...................................................   26

Article VII      - GENERAL.....................................................................   27

     7.1       Expenses........................................................................   27

     7.2       Notices.........................................................................   28

     7.3       Severability....................................................................   29

     7.4       Entire Agreement................................................................   29

     7.5       Specific Performance............................................................   29

     7.6       Assignment......................................................................   29

     7.7       Parties in Interest.............................................................   30

     7.8       Governing Law; Venue............................................................   30

     7.9       Headings........................................................................   30

     7.10      Counterparts....................................................................   30

     7.11      Waiver of Jury Trial............................................................   30
</TABLE>

EXHIBITS
--------

1.5(a)   Form of Termination of Option Offer
2        Company Disclosure Memorandum
2A       Members Disclosure Memorandum
2A.6.    Investor Questionnaire
3        Onyx Disclosure Memorandum
4.1(e)   Registration Rights Agreement
4.1(f)   Form of FIRPTA Affidavit
4.1(i)   Form of Onyx Software Corporation Employee Confidentiality and
         Invention Agreement

                                     -iii-
<PAGE>

                            UNIT PURCHASE AGREEMENT

     This Unit Purchase Agreement (this "Agreement") is made and entered into as
                                         ---------
of January 5, 2001, by and among Onyx Software Corporation, a Washington
corporation ("Onyx"), RevenueLab, LLC, a Delaware limited liability company (the
"Company"), Odyssey Strategic Partners, LLC, a Delaware limited liability
 -------
company (the "Class A Member"), Kevin J. Corcoran, Brad McCoy, Debra S. Rizzo,
              --------------
Kevin Hoffberg, Robert Cronin and LaVon Koerner (the "Founders" or the "Class B
                                                      --------          -------
Members"). The Class A Member and the Class B Members are collectively referred
-------
to herein as the "Members."
                  -------

                                   RECITALS

     A.   The Members own 100% of the issued and outstanding membership units of
the Company (the "Units") and desire and intend to sell the Units to Onyx at the
                  -----
price and subject to the terms and conditions set forth below.

     B.   Onyx desires and intends to purchase the Units from the Members at the
price and on the terms and subject to the conditions set forth below.

                                   AGREEMENT

     In consideration of the terms hereof, the parties hereto agree as follows:

                    ARTICLE I - PURCHASE AND SALE OF UNITS

1.1  Purchase and Sale of Units

     On the terms and subject to the conditions of this Agreement, Onyx agrees
to purchase the Units from the Members, and the Members agree to sell the Units
to Onyx.

1.2  Closing

     Subject to the terms and conditions of this Agreement, the closing of the
transactions contemplated hereby (the "Closing") shall take place on the date
                                       -------
hereof or as promptly as practicable hereafter at the offices of Orrick,
Herrington & Sutcliffe LLP, 701 Fifth Avenue, Suite 6500, Seattle, Washington,
or such date, time and place as Onyx and the Company shall agree (the "Closing
                                                                       -------
Date").  At the Closing, each of Onyx, the Company and the Members shall take
----
all such action and deliver all such funds, documents, instruments, certificates
and other items as may be required, under this Agreement or otherwise, in order
to perform or fulfill all covenants, conditions and agreements on its part to be
performed or fulfilled at or before the Closing Date.

1.3  Consideration for Units

          (a)  The total consideration to be paid to the Class A Member for the
Class A Units and the cancellation of all warrants to purchase Class A Units
shall be $3.0 million,
<PAGE>

payable as set forth in this Section 1.3(a). Each issued and outstanding Class A
Unit of the Company (collectively, the "Class A Units") shall be exchanged for
                                        -------------
the right to receive, at the times and in the form described below:

               (i)  as soon as practicable after the Closing Date, that number
of shares of Onyx common stock, par value $0.01 per share (the "Onyx Common
                                                                -----------
Stock"), determined by dividing (y) $2.0 million divided by the average of the
-----
last reported sales prices of Onyx Common Stock on the Nasdaq National Market
for each of the 30 trading days immediately preceding the Closing Date (the
"Base Price"), by (z) the total number of Class A Units issued and outstanding
 ----------
immediately prior to the Closing (the "Outstanding Class A Number"); and
                                       --------------------------

               (ii) at a future date within the Option Period (as defined below)
to be determined by Onyx, that amount of consideration, payable in cash or
shares of Onyx Common Stock at Onyx's election, as provided in Section 1.4,
determined by dividing $1.0 million by the Outstanding Class A Number (the
"Deferred Payment"). The shares of Onyx Common Stock issued in the Deferred
 ----------------
Payment, if any, shall be referred to herein as the "Additional Shares." In the
                                                     -----------------
event that Onyx elects to make the Deferred Payment in Additional Shares, the
total number of Additional Shares shall be determined by dividing $1.0 million
by the closing price of Onyx Common Stock on the date of the Exercise Notice (as
defined in Section 1.4) as reported by the Nasdaq National Market.

          (b)  Each issued and outstanding Class B Unit of the Company (the
"Class B Units" and, together with the Class A Units, the "Company Units") shall
 -------------                                             -------------
be exchanged for:

               (i)  that amount of cash determined by dividing $117,000 (less
the amount by which the Company Expenses exceed $75,000, as provided in Section
7.1 hereof) by the total number of Class B Units issued and outstanding
immediately prior to the Closing; and

               (ii) that number of shares of Onyx Common Stock determined by
dividing (y) $117,000 divided by the Base Price by (z) the total number of Class
B Units issued and outstanding immediately prior to the Closing.

          (c)  The shares of Onyx Common Stock issued to the Class A Member,
together with the cash (if any) paid to the Class A Member, pursuant to Section
1.3(a) shall be referred to herein as the "Class A Consideration."  The cash
                                           ---------------------
issued to the Class B Members pursuant to Section 1.3(b)(i) shall be referred to
herein as the "Closing Cash" and the shares of Onyx Common Stock issued to the
               ------------
Class B Members pursuant to Section 1.3(b)(ii) shall be referred to herein as
the "Class B Consideration."  The aggregate of the Class A Consideration and the
     ---------------------
Class B Consideration shall be referred to herein as the "Purchase Price."
                                                          --------------

          (d)  The number of shares of Onyx Common Stock to be issued to each
Member under this Section 1.3 shall be calculated by aggregating all Company
Units held by such Member, so that such number of shares of Onyx Common Stock to
be issued shall be equal to the number of Company Units held by such Member
multiplied by the applicable exchange ratio, with fractional shares rounded up
to the nearest whole number of shares.

                                      -2-
<PAGE>

1.4  Method of Deferred Payment

     At any time between March 3, 2001 and April 10, 2001 (the "Option Period"),
                                                                -------------
Onyx shall deliver a notice (the "Exercise Notice") to the Class A Member at the
                                  ---------------
address listed in Section 7.2 of its intention to pay the Deferred Payment on
such date.  The Exercise Notice shall state (a) the date of exercise of Onyx's
election to make the Deferred Payment; (b) whether the Deferred Payment is to be
made in cash or in Additional Shares; and (c) in the event the Deferred Payment
is to be made in Additional Shares, the number of Additional Shares.  In the
event the Deferred Payment is to be made in cash, Onyx shall deliver the
Deferred Payment concurrent with the Exercise Notice by check or wire transfer
of immediately available funds.  In the event that the Deferred Payment is to be
made in Additional Shares, Onyx shall deliver with the Exercise Notice an
executed irrevocable instruction letter to Onyx's transfer agent to issue the
Additional Shares.  Onyx shall use commercially reasonable efforts to cause a
certificate or certificates representing the Additional Shares to be issued
within five business days after delivery of the Exercise Notice.  The Deferred
Payment shall be deemed to have occurred, and Onyx shall be deemed to have
fulfilled its obligation to the Class A Member under Section 1.3(a)(ii), upon
delivery of a properly executed Notice of Exercise containing all of the
elements required by this Section 1.4, and no interest or liability shall accrue
on the Additional Shares or any portion thereof during the period between proper
delivery of a Notice of Exercise and delivery of a certificate or certificates
representing the Additional Shares if Onyx's transfer agent has issued such
certificate or certificates within five business days after delivery of the
instruction letter.

1.5  Option Grants

          (a)  For purposes of this Agreement, "Company Option Plan" means the
                                                -------------------
Company's proposed Member Interest Option Plan and "Option Offer" means an offer
                                                    ------------
to grant an option to purchase Class C Units of the Company (the "Class C
                                                                  -------
Units"), whether under the Company Option Plan or otherwise.  Each employee of
-----
the Company (including each Founder) who has received an Option Offer shall
execute and deliver to the Company prior to the Closing Date a Termination of
Option Offer in the form of Exhibit 1.5(a) hereto.  In consideration for such
                            --------------
employee's agreement to terminate his or her Option Offer, Onyx shall grant
nonqualified stock options to such employee on the terms provided in subsection
(b) below.

          (b)  At Closing, Onyx will grant nonqualified stock options under its
1998 Stock Incentive Compensation Plan, its 2001 Nonofficer Employee Stock
Compensation Plan or such other plan having substantially similar terms (or,
where appropriate, as a non-plan grant) as Onyx shall determine in its sole
discretion, to each employee of the Company, other than any Founder, who has
executed a Termination of Option Offer and has been offered and has accepted
employment with Onyx, a nonqualified stock option (a "Replacement Option") to
                                                      ------------------
acquire that number of shares of Onyx Common Stock equal to the product of the
Option Exchange Ratio (as defined below) and the number of Class C Units subject
to such employee's Option Offer (with fractional shares rounded to the nearest
whole number of shares, with .5 being rounded up), at an exercise price per
share equal to the fair market value of Onyx Common Stock (as determined in
accordance with the formula set forth in the applicable option plan) on the date
of grant.  The Replacement Options shall be granted pursuant to Onyx's standard
form of stock option letter agreement, and shall vest over the course of four
years, with 25% vesting on the first anniversary

                                      -3-
<PAGE>

of the date of grant and 1/48 vesting each month thereafter and with vesting
beginning upon the date of grant, which shall be the Closing Date. The "Option
                                                                        ------
Exchange Ratio" shall be determined by dividing (y) 54,644 by (z) the aggregate
--------------
number of Class C Units subject to Option Offers as of the Closing Date (other
than Option Offers held by any of the Founders).

  ARTICLE II - REPRESENTATIONS AND WARRANTIES OF THE COMPANY AND THE FOUNDERS

     Except as is otherwise set forth with appropriate section references in the
Company Disclosure Memorandum attached as Exhibit 2 (the "Company Disclosure
                                          ---------       ------------------
Memorandum"), each of which exceptions shall specifically identify or cross-
----------
reference the provision of this Article II to which such exception relates, and
which shall constitute in its entirety a representation and warranty under this
Article II, and in order to induce Onyx to enter into and perform this Agreement
and the other agreements, certificates and instruments that are required to be
executed and delivered in connection with this Agreement (the "Operative
                                                               ---------
Documents"), the Company and the Founders represent and warrant to Onyx as of
---------
the date of this Agreement and, if different, as of the Closing Date as follows
in this Article II.

2.1  Organization; Power and Authority

     The Company is a limited liability company duly organized, validly existing
and in good standing under the laws of the state of Delaware.  The Company has
all requisite limited liability company power and authority to own, operate and
lease its properties and assets, to carry on its business as now conducted, to
enter into and perform its obligations under this Agreement and each of the
Operative Documents to which the Company is a party, to consummate the
transactions contemplated hereby and thereby and to perform its obligations
hereunder and thereunder.  The Company is duly qualified and licensed as a
foreign business entity to do business and is in good standing in each
jurisdiction in which the character of the Company's properties occupied, owned
or held under lease or the nature of the business conducted by the Company makes
such qualification or licensing necessary, except where the failure to be so
qualified and licensed or in good standing would not have a material adverse
effect on the business, operations, assets, liabilities (absolute, accrued,
contingent or otherwise), condition (financial or other) or prospects of the
Company (a "Company Material Adverse Effect").
            -------------------------------

2.2  Enforceability

     All limited liability company action on the part of the Company and its
officers, managers and members necessary for the authorization, execution,
delivery and performance by the Company of this Agreement and each of the
Operative Documents to which the Company is a party, the consummation by the
Company of the transactions contemplated hereby and thereby, and the performance
by the Company of all of the Company's obligations hereunder and thereunder has
been taken.  This Agreement and each of the Operative Documents to which the
Company is a party has been duly executed and delivered by the Company, and this
Agreement and each of the Operative Documents to which the Company is a party is
a legal, valid and binding obligation of the Company, enforceable against the
Company in accordance with its terms.

                                      -4-
<PAGE>

2.3  Capitalization

          (a)  The authorized membership units of the Company consist of
15,000,000 units, of which 3,750,000 are designated as Class A Units, 5,400,000
are designated as Class B Units and 5,850,000 are designated as Class C Units.

          (b)  As of the date of this Agreement, the issued and outstanding
membership units of the Company consist solely of 1,875,000 Class A Units,
5,400,000 Class B Units and no Class C Units, which are and as of the Closing
will be held of record and beneficially by the Members as set forth on Schedule
2.3(b) to the Company Disclosure Memorandum.  Such outstanding Company Units
are, and immediately prior to the Closing will be, duly authorized and validly
issued, fully paid and nonassessable, and issued in compliance with all
applicable federal and state securities laws.  No Person (as defined in Section
2.5) other than the Members holds any interest in any of the outstanding Company
Units.  True and correct copies of the membership unit records of the Company,
showing all issuances and transfers of membership units of the Company since
inception, have been provided to Onyx or its counsel.  Schedule 2.3(b) sets
forth all Option Offers outstanding as of the date hereof, and the number of
Class C Units that the holder of each such Option Offer would have been entitled
to purchase pursuant to such Option Offer.  The Option Offers listed on Schedule
2.3(b) constitute all options, warrants or other stock purchase rights that have
been offered in connection with any offer of employment or employee or
consulting agreement.

          (c)  As of the date of this Agreement, there are no outstanding rights
of first refusal or offer, preemptive rights, options, warrants, conversion
rights, stock purchase rights or other agreements, either directly or
indirectly, for the purchase or acquisition from the Company or any Member of
any Company Units or any securities convertible into or exchangeable for Company
Units.

          (d)  The Company is not a party or subject to any agreement or
understanding and, to the knowledge of the Company or any Founder, there is no
agreement or understanding between any Persons that affects or relates to the
voting or giving of written consents with respect to any securities of the
Company or the voting by any director of the Company.  No Member or any
affiliate thereof is indebted to the Company, and the Company is not indebted to
any Member or any affiliate thereof.  The Company is not under any contractual
or other obligation to register any of its presently outstanding securities or
any of its securities that may hereafter be issued.

2.4  Subsidiaries and Affiliates

     The Company does not own or control, and has not in the past owned or
controlled, directly or indirectly, any corporation, partnership, limited
liability company or other business entity.  The Company does not own, directly
or indirectly, any ownership, equity or voting interest in any corporation,
partnership, joint venture or other entity, and has no agreement or commitment
to purchase any such interest.

                                      -5-
<PAGE>

2.5  No Approvals; No Conflicts

     The execution, delivery and performance by the Company of this Agreement
and the Operative Documents, the consummation of the transactions contemplated
hereby and thereby, and the performance by the Company of its obligations
hereunder and thereunder, will not (a) constitute a violation (with or without
the giving of notice or lapse of time, or both) of any provision of law or any
judgment, decree, order, regulation or rule of any court or other governmental
authority applicable to the Company, (b) require any consent, approval or
authorization of, or declaration, filing or registration with, any person,
corporation, partnership, joint venture, association, organization, other entity
or governmental or regulatory authority (a "Person"), except for compliance with
                                            ------
applicable securities laws, (c) result in a default (with or without the giving
of notice or lapse of time, or both) under, or acceleration or termination of,
or the creation in any party of the right to accelerate, terminate, modify or
cancel, any agreement, lease, note or other restriction, encumbrance, obligation
or liability to which the Company is a party or by which it is bound or to which
any assets of the Company are subject, (d) result in the creation of any
Encumbrance (as defined in Section 2.9) upon any material assets of the Company
or, to the knowledge of the Company or any Founder, upon any outstanding
membership units or other securities of the Company, (e) conflict with or result
in a breach of or constitute a default under any provision of the Certificate of
Formation or Operating Agreement of the Company, or (f) invalidate or adversely
affect any permit, license or authorization currently material to the conduct of
the business of the Company.

2.6  Financial Statements

     The Company has delivered to Onyx an unaudited balance sheet, statement of
income and expense and statement of stockholders' equity of the Company as of
and for the period from inception to November 30, 2000.  All the foregoing
financial statements are herein referred to as the "Company Financial
                                                    -----------------
Statements."  The balance sheet of the Company as of November 30, 2000 is herein
----------
referred to as the "Company Balance Sheet."  The Company Financial Statements
                    ---------------------
have been prepared in conformity with generally accepted accounting principles
in the United States ("GAAP") on a basis consistent with prior accounting
                       ----
periods and fairly present the financial position, results of operations and
changes in financial position of the Company as of the dates and for the periods
indicated.  The Company has no liabilities or obligations of any nature
(absolute, contingent or otherwise) that are not fully reflected or reserved
against in the Company Balance Sheet and that would be required under GAAP to be
reflected or reserved, except liabilities or obligations incurred since the date
of the Company Balance Sheet in the ordinary course of business and consistent
with past practice that are not in excess of $50,000 in the aggregate or $20,000
individually.  The Company maintains standard systems of accounting that are
adequate for its business.  The Company is not a guarantor, indemnitor, surety
or other obligor of any indebtedness of any other Person.

2.7  Absence of Certain Changes or Events

     Except for transactions specifically contemplated in this Agreement, since
the date of the Company Balance Sheet, neither the Company nor any of its
officers, managers or Members in their representative capacities on behalf of
the Company have:

                                      -6-
<PAGE>

          (a)  taken any action or entered into or agreed to enter into any
transaction, agreement or commitment other than in the ordinary course of
business;

          (b)  forgiven or canceled any indebtedness or waived any claims or
rights of material value (including, without limitation, any indebtedness owing
by any Member, manager, employee or affiliate of the Company);

          (c)  granted, other than in the ordinary course of business and
consistent with past practice, any increase in the compensation of officers,
managers, employees or consultants (including any such increase pursuant to any
employment agreement or bonus, pension, profit-sharing, lease payment or other
plan or commitment) or any increase in the compensation payable or to become
payable to any manager, employee or consultant;

          (d)  suffered any change having or reasonably likely to have a Company
Material Adverse Effect;

          (e)  borrowed or agreed to borrow any funds, incurred or become
subject to, whether directly or by way of assumption or guarantee or otherwise,
any obligations or liabilities (absolute, accrued, contingent or otherwise) in
excess of $10,000 individually or in excess of $20,000 in the aggregate, except
liabilities and obligations that (i) are incurred in the ordinary course of
business and consistent with past practice or (ii) would not be required to be
reflected or reserved against in a balance sheet prepared in accordance with
GAAP, or increased, or experienced any change in any assumptions underlying or
methods of calculating, any bad debt, contingency or other reserves;

          (f)  paid, discharged or satisfied any material claims, liabilities or
obligations (absolute, accrued, contingent or otherwise) other than the payment,
discharge or satisfaction in the ordinary course of business and consistent with
past practice of claims, liabilities and obligations reflected or reserved
against in the Company Balance Sheet or incurred in the ordinary course of
business and consistent with past practice since the date of the Company Balance
Sheet, or prepaid any obligation having a fixed maturity of more than 90 days
from the date such obligation was issued or incurred;

          (g)  knowingly permitted or allowed any of its property or assets
(real, personal or mixed, tangible or intangible) to be subjected to any
Encumbrance, except in the ordinary course of business and consistent with past
practice;

          (h)  purchased or sold, transferred or otherwise disposed of any of
its material properties or assets (real, personal or mixed, tangible or
intangible);

          (i)  made any single capital expenditure or commitment in excess of
$10,000 for additions to property, plant, equipment or intangible capital assets
or made aggregate capital expenditures in excess of $20,000 for additions to
property, plant, equipment or intangible capital assets;

          (j)  made any change in accounting methods or practices or internal
control procedure;

                                      -7-
<PAGE>

          (k)  issued any membership units or other securities, or declared,
paid or set aside for payment any dividend or other distribution in respect of
its membership units, or redeemed, purchased or otherwise acquired, directly or
indirectly, any membership units or other securities of the Company, or
otherwise permitted the withdrawal by any of the Members of any cash or other
assets (real, personal or mixed, tangible or intangible), in compensation,
indebtedness or otherwise, other than payments of compensation in the ordinary
course of business and consistent with past practice;

          (l)  paid, loaned or advanced any amount to, or sold, transferred or
leased any properties or assets (real, personal or mixed, tangible or
intangible) to any of the Company's Members, officers, managers or employees or
any affiliate of any of the Company's Members, officers, managers or employees,
except compensation paid to officers, managers and employees at rates not
exceeding the rates of compensation paid during the fiscal year last ended and
except for advances for travel and other business-related expenses; or

          (m)  agreed, whether in writing or otherwise, to take any action
described in this Section 2.7.

2.8  Taxes

     The Company has filed all tax returns and reports as required by law.
These returns and reports are true and correct in all material respects.  The
Company has paid all taxes and other assessments due.  There is no dispute or
claim concerning any tax liability of the Company as to which any of the
managers or officers (or employees responsible for tax matters) of the Company
have knowledge based on contact or correspondence with any authority or agent of
such authority.  The Company is not a party to any tax allocation or sharing
agreement.  The Company does not have any liability for taxes of any Person as a
transferee or successor by contract or otherwise.  The Company is treated as a
partnership for United States federal income tax purposes and for all other tax
purposes to the extent that the classification of entities for such purposes
follows rules comparable to those that apply for United States federal income
tax purposes.

2.9  Property

     The Company owns its property and assets free and clear of all mortgages,
liens, loans, pledges, deeds of trust, security interests, charges, encumbrances
and other adverse claims or interests of any kind (each, an "Encumbrance"),
                                                             -----------
except such Encumbrances that arise in the ordinary course of business and do
not materially impair the Company's ownership or use of such property or assets.
With respect to the property and assets it leases, the Company is not in default
under such leases and, to its knowledge, its leasehold interest is free of any
liens, claims or encumbrances.

                                      -8-
<PAGE>

2.10 Contracts

     2.10.1  Material Contracts

     Schedule 2.10.1 to the Company Disclosure Memorandum lists a complete and
accurate list of all contracts, agreements and understandings, oral or written,
to which the Company is currently a party or by which the Company is currently
bound providing for potential payments by or to the Company in excess of
$10,000, including, without limitation, security agreements, license agreements,
software development agreements, distribution agreements, joint venture
agreements, reseller agreements, credit agreements and instruments relating to
the borrowing of money (any such contract, a "Material Contract").  All
                                              -----------------
contracts listed on Schedule 2.10.1 are valid, binding and enforceable in
accordance with their terms against the Company and, to the knowledge of the
Company and each Founder, each other party thereto, and are in full force and
effect, the Company has performed in all material respects all obligations
imposed on it thereunder, and neither the Company nor, to the knowledge of the
Company or any Founder, any other party thereto is in default thereunder, nor to
the knowledge of the Company or any Founder is there any event that with notice
or lapse of time, or both, would constitute a default by the Company or, to the
knowledge of the Company or any Founder, any other party thereunder.  True and
complete copies of each such written contract (or written summaries of the terms
of any such oral contract) have been delivered to Onyx by the Company.  The
Company has no:

          (a)  contracts with managers, officers, Members, employees, agents,
consultants, advisors, salespeople, sales representatives, distributors or
dealers that cannot be canceled by the Company with 30 days' notice without
liability, penalty or premium, any agreement or arrangement providing for the
payment of any bonus or commission based on sales or earnings, or any
compensation agreement or arrangement affecting or relating to former employees
of the Company;

          (b)  employment agreement, whether express or implied, or any other
agreement for services that contains severance or termination pay liabilities or
obligations;

          (c)  noncompetition agreement or other arrangement to which the
Company is a party that would prevent the Company from carrying on its business
anywhere in the world;

          (d)  notice that any party to a contract listed on Schedule 2.10.1
intends to cancel, terminate or refuse to renew such contract (if such contract
is renewable);

          (e)  material dispute with any of its suppliers, customers,
distributors, original equipment manufacturers, resellers, licensors or
licensees;

          (f)  product distribution agreement, development agreement or license
agreement as licensor or licensee (except for standard nonexclusive software
licenses granted to end-user customers in the ordinary course of business, the
form of which has been provided to Onyx, or standard licenses purchased by the
Company for off-the-shelf software);

          (g)  joint venture contract or arrangement or any other agreement that
involves a sharing of profits with other Persons;

                                      -9-
<PAGE>

          (h)  instrument evidencing indebtedness for borrowed money by way of a
direct loan, sale of debt securities, purchase money obligation, conditional
sale or guarantee, or otherwise, except for trade indebtedness incurred in the
ordinary course of business, and except as disclosed in the Company Financial
Statements; or

          (i)  agreements or commitments to provide indemnification.

     2.10.2  Required Consents

     The execution and delivery of this Agreement and the performance of the
obligations of the Company hereunder will not constitute a default under any
Material Contract and do not require the consent of any other party to any
Material Contract, except for those consents listed on Schedule 2.10.2 to the
Company Disclosure Memorandum, all of which have been obtained prior to the date
hereof.

2.11 Corporate Books and Records

     The Company has furnished to Onyx or its representatives for their
examination true and complete copies of (a) the Certificate of Formation and
Operating Agreement of the Company as currently in effect, including all
amendments thereto, (b) the minute books of the Company, and (c) the unit
transfer records of the Company.  Such minutes reflect all meetings of the
Members, officers, managers and any committees thereof since the Company's
inception, and such minutes accurately reflect in all material respects the
actions taken at such meetings.  Such unit transfer records accurately reflect
all issuances and transfers of membership units of the Company since its
inception.

2.12 Claims and Legal Proceedings

     There are no claims, actions, suits, arbitrations, investigations or
proceedings pending or involving or, to the knowledge of the Company or any
Founder, threatened against the Company before or by any court or governmental
or nongovernmental department, commission, board, bureau, agency or
instrumentality, or any other Person.  To the knowledge of the Company or any
Founder, there is no valid basis for any claim, action, suit, arbitration,
proceeding or investigation before or by any Person.  There are no outstanding
or unsatisfied judgments, orders, decrees or stipulations to which the Company
is a party.  Schedule 2.12 to the Company Disclosure Memorandum sets forth a
description of any material disputes involving the Company that have been
settled or resolved by litigation or arbitration since the Company's inception.

2.13 Labor and Employment Matters

     There are no pending claims against the Company under any workers
compensation plan or policy or for long-term disability.  The Company has no
material obligations under COBRA or any similar state law with respect to any
former employees or qualifying beneficiaries thereunder.  There are no material
controversies pending or, to the knowledge of the Company or any Founder,
threatened, between the Company and any of its employees or former employees.
The Company is not a party to any collective bargaining agreement or other labor
union contract nor does the Company or any Founder know of any activities or
proceedings of any labor union to

                                      -10-
<PAGE>

organize any such employees. Each employee, manager and consultant of the
Company has executed a nondisclosure agreement in the form provided to Onyx. To
the knowledge of the Company or any Founder, no employee (or Person performing
similar functions) of the Company is in material violation of any such agreement
or any employment agreement, noncompetition agreement, patent disclosure
agreement, invention assignment agreement, proprietary information agreement or
other contract or agreement relating to the relationship of such employee with
the Company or any other party. All employees of the Company are employed on an
"at will" basis, and are eligible to work and are lawfully employed in the
United States.

2.14 Employee Benefit Plans

          (a)  All "employee benefit plans" (within the meaning of Section 3(3)
of the Employee Retirement Income Security Act of 1974, as amended ("ERISA"))
                                                                     -----
covering any employees of the Company (the "Benefit Plans") are set forth in
                                            -------------
Schedule 2.14 to the Company Disclosure Memorandum.  True, correct and complete
copies of each of the Benefit Plans have been provided to Onyx or its counsel.

          (b)  Each Benefit Plan is in substantial compliance with applicable
requirements prescribed by any and all state, federal or foreign laws,
including, but not limited to, the Internal Revenue Code of 1986, as amended
(the "Code"), and ERISA.  The Company has in all material respects performed all
      ----
obligations required to be performed by it under ERISA, the Code and any other
applicable state, federal or foreign law and under the terms of each Benefit
Plan.  The Company has received no written notice of the existence of any
material default or violation by any other party of any of such laws, terms or
requirements applicable to any of the Benefit Plans.

          (c)  All (i) insurance premiums required to be paid with respect to,
(ii) benefits, expenses and other amounts due and payable under, and (iii)
contributions, transfers or payments required to be made to, any Benefit Plan
prior to the Closing will have been paid, made or accrued on or before the
Closing.

          (d)  Other than routine claims for benefits, the Company has not
received any written notice of any pending material claims or lawsuits that have
been asserted or instituted against any of the Benefit Plans, the sponsor or
administrator of any of the Benefit Plans, or any fiduciary of any of the
Benefit Plans with respect to the operation of such Benefit Plan.

          (e)  The execution and performance of this Agreement and the Operative
Documents and the consummation of the transactions contemplated hereby and
thereby will not (i) constitute a stated triggering event under any Benefit Plan
that will result in any payment, (whether of severance pay or otherwise)
becoming due from the Company to any present or former officer, employee,
manager, Member or consultant, or former employee (or dependents of any
thereof), or (ii) accelerate the time of payment or vesting, or increase the
amount, of compensation due to any employee, officer, manager, Member or
consultant of the Company.

                                      -11-
<PAGE>

2.15 Intellectual Property

     The Company owns or possesses sufficient legal rights to all patents,
trademarks, service marks, trade names, copyrights, trade secrets, licenses,
information and proprietary rights and processes necessary for its business
without any conflict with, or infringement of, the rights of others. Each person
who purported to transfer an interest in any such rights to the Company has
executed transfer documentation to the Company that legally, fully and
effectively transfers such interest to the Company. The Company has not received
any written communications alleging that the Company has violated or, by
conducting its business, would violate any of the patents, trademarks, service
marks, trade names, copyrights, trade secrets or other proprietary rights or
processes of any other Person. The Company is not aware that any of its
employees is obligated under any contract (including licenses, covenants or
commitments of any nature) or other agreement, or subject to any judgment,
decree or order of any court or administrative agency, that would interfere with
the use of such employee's efforts to promote the interest of the Company or
that would conflict with the Company's business. Neither the execution or
delivery of this Agreement or the Operative Documents, nor the carrying on of
the Company's business by the employees of the Company, nor the conduct of the
Company's business as proposed, will, to the knowledge of the Company or any
Founder, conflict with or result in a breach of the terms, conditions, or
provisions of, or constitute a default under, any contract, covenant or
instrument under which any such employee is now obligated. The Company does not
believe it is or will be necessary to use any inventions of any of its employees
(or persons it currently intends to hire) made prior to their employment by the
Company. Set forth on Schedule 2.15 of the Company Disclosure Memorandum is a
list of all patents, copyrights, trademarks, internet domain names and licenses
of the Company.

2.16 Licenses, Permits, Authorizations, Etc.

     The Company has received all currently required governmental approvals,
authorizations, consents, licenses, orders, registrations and permits of all
agencies, whether federal, state, local or foreign, the failure to obtain of
which would have a Company Material Adverse Effect. The Company has not received
any notifications of any asserted present failure by it to have obtained any
such governmental approval, authorization, consent, license, order, registration
or permit, or any past and unremedied failure to obtain such items.

2.17 Compliance With Laws

     The Company is in compliance with all federal, state, local and foreign
laws, rules, regulations, ordinances, decrees and orders applicable to it, to
its employees or to its properties, including, without limitation, all such
laws, rules, regulations, ordinances, decrees and orders relating to
intellectual property protection, antitrust matters, consumer protection,
currency exchange, environmental protection, equal employment opportunity,
health and occupational safety, pension and employee benefit matters, securities
and investor protection matters, labor and employment matters and trading-with-
the-enemy matters, except where the failure of the Company to so comply would
not have a Company Material Adverse Effect. The Company has not received any
written notification of any asserted present or past unremedied failure by the
Company to comply with any of such laws, rules, regulations, ordinances, decrees
or orders.

                                      -12-
<PAGE>

2.18 Insurance

     The Company maintains the insurance policies listed on Schedule 2.18 to the
Company Disclosure Memorandum. All insurance policies of the Company are in full
force and effect, all premiums with respect thereto covering all periods up to
and including the date this representation is made have been paid, and no notice
of cancellation or termination has been received with respect to any such policy
or binder. Neither the Company nor any Founder has any knowledge of any
threatened termination of, or material premium increase with respect to, any of
such policies, other than customary annual or semi-annual premium increases.

2.19 Brokers or Finders

     The Company has not incurred, and will not incur, directly or indirectly,
as a result of any action taken by or on behalf of the Company, any liability
for brokerage or finders' fees or agents' commissions or any similar charges in
connection with this Agreement or any transaction contemplated hereby.

2.20 Bank Accounts

     Schedule 2.20 to the Company Disclosure Memorandum sets forth the names and
locations of all banks, trust companies, savings and loan associations and other
financial institutions at which the Company maintains safe deposit boxes or
accounts of any nature and the names of all Persons authorized to draw thereon,
make withdrawals therefrom or have access thereto.

2.21 Insider Interests

     No Member or manager of the Company has any interest (other than as a
Member of the Company) (a) in any real property, personal property, technology
or intellectual property rights used in or directly pertaining to the business
of the Company, including, without limitation, inventions, patents, trademarks
or trade names, or (b) in any agreement, contract, arrangement or obligation
relating to the Company, its present or prospective business or its operations.
There are no agreements, understandings or proposed transactions between the
Company and any of its Members, managers, officers, affiliates or any affiliate
thereof. None of the Company or any of its Members, managers or officers have
any interest, either directly or indirectly, in any entity, including, without
limitation, any corporation, partnership, joint venture, proprietorship, firm,
licensee, business or association (whether as an employee, officer, director,
stockholder, agent, independent contractor, security holder, creditor,
consultant or otherwise), other than ownership of capital stock comprising less
than 1% of any publicly held company, that presently (i) provides any services,
produces and/or sells any products or product lines, or engages in any activity
that is the same, similar to or competitive with any activity or business in
which the Company is now engaged; (ii) is a supplier, customer or creditor; or
(iii) has any direct or indirect interest in any asset or property, real or
personal, tangible or intangible, of the Company or any property, real or
personal, tangible or intangible, that is necessary or desirable for the conduct
of the Company's business.

                                      -13-
<PAGE>

2.22 Full Disclosure

     No information furnished by the Company or the Founders to Onyx or its
representatives in connection with this Agreement (including, but not limited
to, the Company Financial Statements and all information in the Company
Disclosure Memorandum and the other Exhibits hereto) or the Operative Documents
contains any untrue statement of a material fact or omits to state a material
fact necessary in order to make the statements so made or information so
delivered not misleading.

2.23 Domain Name Transfer

     BLDC Holdings, an entity wholly owned by Brad McCoy, has submitted all
documentation required by Network Solutions, Inc. to transfer each of the
following domain names into the name of the Company on the records of Network
Solutions, Inc.: RevenueLab.com, RevenueLab.org, RevenueLabs.net,
RevenueLabs.com, TheRevenueLab.com, IRevenueLab.com, ERevenueLab.com,
Revenueacceleration.com; Revenueaccelerationplan.com; Compressionsession.com,
Sellingfordummies.com; Salesinnovators.com, Revenueaccelerationsolutions.com;
Reventos.com; Speedtorevenue.com; Accelerationteam.com, Aventos.org, Iventos.com
and RevenueAccelerators.com. In the event that any further action is necessary
or desirable to accomplish the transfer contemplated above, each of the Company
and Mr. McCoy shall take all such required action.

2.24 Warrant Held by the Company

     That certain warrant, dated August 15, 2000, to Purchase 600,000 Class A
Common Shares of the Class A Member (the "Odyssey Warrant") (a) is outstanding
                                          ---------------
on the books of the Class A Member as of the date hereof and (b) shall remain an
asset of RevenueLab, and continue in full force and effect in accordance with
its terms immediately after the Closing. The Company and the Class A Member
shall take any further action necessary or desirable to transfer the Odyssey
Warrant to Onyx as soon as practicable after the Closing.

          ARTICLE IIA - REPRESENTATIONS AND WARRANTIES OF THE MEMBERS

     Except as is otherwise set forth with appropriate section references in the
Members Disclosure Memorandum attached as Exhibit 2A (the "Members Disclosure
                                          ----------       ------------------
Memorandum"), each of which exceptions shall specifically identify or cross-
----------
reference the provision of this Article IIA to which such exception relates, and
which shall constitute in its entirety a representation and warranty under this
Article IIA, and in order to induce Onyx to enter into and perform this
Agreement and the Operative Documents, each Member represents and warrants to
Onyx as of the date of this Agreement and, if different, as of the Closing Date
as follows in this Article IIA.

2A.1 Good Title

     Such Member owns, beneficially and of record, the Company Units listed
opposite such Member's name on Schedule 2.3(b) to the Company Disclosure
Memorandum. Such Company

                                      -14-
<PAGE>

Units are owned free and clear of any Encumbrance, restriction on sale, transfer
or voting (other than restrictions imposed by applicable securities laws),
preemptive right, option or other right to purchase and upon the consummation of
the sale of such Company Units as contemplated hereby, Onyx will have good title
to such Company Units, free and clear of any Encumbrance, restriction on sale,
transfer or voting (other than restrictions imposed by applicable securities
laws), preemptive right, option or other right to purchase.

2A.2 Authority

     Such Member has all requisite power, authority and, if such Member is an
individual, capacity, to enter into and perform his, her or its obligations
under this Agreement and the Operative Documents to which he, she or it is a
party, to consummate the transactions contemplated hereby and thereby, to
perform his, her or its obligations hereunder and thereunder and to sell and
transfer those Company Units listed opposite such Member's name on Schedule
2.3(b), without the consent or approval of any other Person.

2A.3 Enforceability

     Such Member has taken all action necessary for the authorization,
execution, delivery and performance of this Agreement and each of the Operative
Documents to which he, she or it is a party, the consummation of the
transactions contemplated hereby and thereby, and the performance of all of such
Member's obligations hereunder and thereunder. This Agreement has been duly
executed and delivered by such Member, and this Agreement is a legal, valid and
binding obligation of such Member, enforceable against such Member in accordance
with its terms.

2A.4 No Approvals or Notices Required; No Conflicts

     The execution, delivery and performance by such Member of this Agreement
and each of the Operative Documents to which he, she or it is a party, the
consummation of the transactions contemplated hereby and thereby and the
performance by such Member of his, her or its obligations hereunder and
thereunder, will not (a) constitute a violation (with or without the giving of
notice or lapse of time, or both) of any provision of any law or any judgment,
decree, order, regulation or rule of any court, agency or other governmental
authority applicable to such Member, (b) require any consent, approval or
authorization of, or declaration, filing or registration with, any Person,
except for compliance with applicable securities laws, (c) result in a default
(with or without the giving of notice or lapse of time, or both) under,
acceleration or termination of, or the creation in any party of the right to
accelerate, terminate, modify or cancel, any agreement, lease, note or other
restriction, encumbrance, obligation or liability to which such Member is a
party or by which it is bound or to which any assets of such Member are subject,
or (d) result in the creation of any Encumbrance upon the assets of such Member,
or upon any Company Units or other securities of the Company held by such
Member.

                                      -15-
<PAGE>

2A.5 Claims Against the Company

     Such Member does not have any past, present or contemplated claims against
the Company.

2A.6 Sophistication; Accreditation

     Such Member has delivered, or will deliver at Closing, a complete executed
Investor Questionnaire (the "Investor Questionnaire") in the form attached
                             ----------------------
hereto as Exhibit 2A.6.  Such Member's responses to the questions contained in
          ------------
the Investor Questionnaire are true and complete as of the date of this
Agreement as if made on the date hereof. Such Member has such knowledge and
experience in financial and business matters that he, she or it is capable of
evaluating the merits and risks of the prospective investment in Onyx Common
Stock, and able to fend for himself, herself or itself in the transactions
contemplated by this Agreement and the Operative Documents to which such Member
is a party. Such Member is in a financial position to hold the Onyx Common Stock
for an indefinite period of time and is able to bear the economic risk and
withstand a complete loss of his, her or its investment in the Onyx Common
Stock.

2A.7 Information

     Such Member has been furnished with all of the information he, she or it
deems necessary to evaluate the risks and merits of the Onyx Common Stock,
including the SEC Documents (as defined in Section 3.5). Such Member has had the
opportunity to ask questions and receive answers concerning the terms and
conditions of the offering of Onyx Common Stock hereunder and to obtain
additional information from Onyx that he, she or it considers necessary to
verify the accuracy of the information that he, she or it has received about the
Onyx Common Stock or Onyx. The Member understands that any representations made
by officers and employees of Onyx or the Company regarding the terms of this
Agreement and the offering of Onyx Common Stock hereunder that are not contained
in this Agreement or the SEC Documents or are in any way different from the
information contained in this Agreement or the SEC Documents have not been
authorized by Onyx, and the Member has not relied on any such representations as
having been authorized by Onyx.

2A.8 No Registration

     Such Member is aware and understands that (a) the shares of Onyx Common
Stock issued as part of the Purchase Price have not been and will not prior to
issuance be registered under the Securities Act of 1933, as amended (the
"Securities Act"); (b) he, she or it must continue to bear the economic risk of
---------------
the investment in such shares of Onyx Common Stock for an indefinite time; (c)
such shares of Onyx Common Stock cannot be sold unless they are subsequently
registered or an exemption from registration is available; and (d) other than
pursuant to the Registration Rights Agreement (as defined in Section 4.1(e))
with respect to the shares of Onyx Common Stock to be issued to the Class A
Member, Onyx has no obligation to register such shares of Onyx Common Stock with
the SEC and has not represented that it will register such shares.

                                      -16-
<PAGE>

2A.9  Brokers or Agents

      Such Member has not employed any broker or agent in connection with the
transactions contemplated by this Agreement and agrees to indemnify Onyx against
all losses, damages or expenses relating to or arising out of claims for fees or
commission of any broker or agent employed by such Member.

2A.10 Investment for Own Account

      The Onyx Common Stock is being acquired by such Member for investment for
his, her or its own account, not as a nominee or agent, and not with a view to
distribution of any part thereof; such Member has no present intention of
selling, granting any participation in or otherwise distributing any of the Onyx
Common Stock in a manner contrary to the Securities Act or to any applicable
state securities or blue sky law, nor does such Member have any contract,
undertaking agreement or arrangement with any person or entity to sell, transfer
or grant a participation to such person or entity with respect of any of the
Onyx Common Stock.

2A.11 Residency

      For purposes of the application of state securities laws, each Member is a
resident of the state set forth below his, her or its name on Schedule 2A.11 of
the Members Disclosure Memorandum.

2A.12 Legends

      Such Member understands that, prior to the effectiveness of a registration
statement registering the shares of Onyx Common Stock issuable pursuant to
Section 1.3, certificates or other instruments representing such shares of Onyx
Common Stock will bear legends substantially similar to the following, in
addition to any other legends required by federal or state laws:

      The securities evidenced by this certificate have not been registered
      under the Securities Act of 1933, as amended (the "Act"), or any
      applicable state law, and no interest therein may be sold, distributed,
      assigned, offered, pledged or otherwise transferred unless (a) there is an
      effective registration statement under the Act and applicable state
      securities laws covering any such transaction involving these securities
      or (b) the corporation receives an opinion of legal counsel for the holder
      of these securities (concurred in by legal counsel for the corporation)
      stating that such transaction is exempt from registration or the
      corporation otherwise satisfies itself that such transaction is exempt
      from registration.

      Such Member agrees that, in order to ensure and enforce compliance with
the restrictions imposed by applicable law and those referred to in the
foregoing legend, Onyx may, prior to the effectiveness of any registration
statement, issue appropriate "stop transfer" instructions to its transfer agent,
if any, with respect to any certificate representing shares of the Onyx Common
Stock issued pursuant to Section 1.3 or, if Onyx transfers its own securities,
that it may make appropriate notation to the same effect in Onyx's records.

                                      -17-
<PAGE>

2A.13 Tax Matters

      The Member agrees to timely pay all transfer, documentary, sales, use,
stamp, registration or other taxes arising from or relating to the transactions
contemplated by this Agreement, to the extent they relate specifically to the
issuance to the Member of the Onyx Common Stock, and agrees to file, at his, her
or its own expense, all necessary tax returns and other documentation with
respect to all such transfer, documentary, sales, use, stamp, registration or
other taxes.

             ARTICLE III - REPRESENTATIONS AND WARRANTIES OF ONYX

      Except as is otherwise set forth with appropriate section references in
the Onyx Disclosure Memorandum attached as Exhibit 3 (the "Onyx Disclosure
                                           ---------       ---------------
Memorandum"), each of which exceptions shall specifically identify or cross-
----------
reference the provision of this Article III to which such exception relates, and
which shall constitute in its entirety a representation and warranty under this
Article III, and in order to induce the Company and the Members to enter into
and perform this Agreement and the Operative Documents, Onyx represents and
warrants to the Company and the Members as of the date of this Agreement and, if
different, as of the Closing Date as follows in this Article III.

3.1   Organization

      Onyx is a corporation duly organized and validly existing under the laws
of the state of Washington, and has paid all excise taxes required by the
Washington Department of Revenue. Onyx has all requisite corporate power and
authority to own, operate and lease its properties and assets, to carry on its
business as now conducted and as proposed to be conducted, to enter into and
perform its obligations under this Agreement and the Operative Documents to
which it is a party, to consummate the transactions contemplated hereby and
thereby and to perform its obligations hereunder and thereunder. Onyx is duly
qualified and licensed as a foreign corporation to do business and is in good
standing in each jurisdiction in which the character of its properties occupied,
owned or held under lease, or the nature of its business makes such
qualification or licensing necessary, except where the failure to be so
qualified or in good standing would not have a material adverse effect on the
business, operations, assets, liabilities (absolute, accrued, contingent or
otherwise), condition (financial or other) or prospects of Onyx and its
subsidiaries taken as a whole (a "Onyx Material Adverse Effect").
                                  ----------------------------

3.2   Enforceability

      All corporate action on the part of Onyx and its officers and directors
necessary for the authorization, execution, delivery and performance of this
Agreement and each of the Operative Documents to which it is a party, the
consummation of the transactions contemplated hereby and thereby and the
performance of all its obligations hereunder and thereunder has been taken.
This Agreement and each of the Operative Documents to which Onyx is a party has
been duly executed and delivered by Onyx, and this Agreement and each of the
Operative Documents to which Onyx is a party is a legal, valid and binding
obligation of Onyx, enforceable against Onyx in accordance with its terms.

                                      -18-
<PAGE>

3.3  Securities

     The Onyx Common Stock to be issued pursuant to this Agreement has been duly
authorized for issuance, and such Onyx Common Stock, when issued and delivered
to the Members pursuant to this Agreement, shall be validly issued, fully paid
and nonassessable.

3.4  No Approvals or Notices Required; No Conflicts With Instruments

     The execution, delivery and performance by Onyx of this Agreement and each
of the Operative Documents to which Onyx is a party, the consummation by Onyx of
the transactions contemplated hereby and thereby and the performance by Onyx of
its obligations hereunder and thereunder will not (a) constitute a violation
(with or without the giving of notice or lapse of time, or both) of any
provision of law or any judgment, decree, order, regulation or rule of any court
or other governmental authority applicable to Onyx; (b) require any consent,
approval or authorization of any Person, except compliance with applicable
securities laws; or (c) conflict with or result in a breach of or constitute a
default under any provision of the Articles of Incorporation or Bylaws of Onyx.

3.5  SEC Documents; SEC Reporting

     Onyx has made available to the Members true and complete copies of (a) its
Annual Report on Form 10-K for the year ended December 31, 1999, (b) its
Quarterly Reports for the quarters ended March 31, 2000, June 30, 2000 and
September 30, 2000, and (c) all of its Current Reports on Form 8-K filed with
the Securities and Exchange Commission (the "SEC") after December 31, 1999
                                             ---
(collectively, the "SEC Documents").  As of their respective filing dates, each
                    -------------
of the SEC Documents complied in all material respects with the requirements of
the Securities Exchange Act of 1934, as amended, as applicable, and the
applicable rules and regulations of the SEC promulgated thereunder.

3.6  Absence of Certain Changes

     Since the September 30, 2000 consolidated financial statements included in
the SEC Documents, there has not been any change that, by itself or in
conjunction with all other such changes, has had or could reasonably be expected
to have a Onyx Material Adverse Effect, except as disclosed in the SEC Documents
to the date of this Agreement; provided, however, that changes in the trading
price of Onyx Common Stock shall not be considered a Onyx Material Adverse
Effect.

3.7  Full Disclosure

     No information furnished by Onyx to the Company, the Founders, the Members
or their representatives in connection with this Agreement or the Operative
Documents (including the SEC Documents) contains any untrue statement of a
material fact or omits to state a material fact necessary in order to make the
statements so made or information so delivered not misleading.

                                      -19-
<PAGE>

                            ARTICLE IV - DELIVERIES

4.1  Deliveries of the Company and the Members

     Prior to the Closing, the Company and the Members shall deliver to Onyx:

          (a)  an opinion letter of Ross & Hardies, counsel for the Company,
dated the Closing Date, in form and substance reasonably satisfactory to Onyx.

          (b)  an opinion letter of Brobeck, Phleger & Harrison LLP, counsel for
the Class A Member, dated the Closing Date, in form and substance reasonably
satisfactory to Onyx.

          (c)  a certificate of a Manager of the Company, in form and substance
reasonably satisfactory to Onyx, certifying as to the authenticity and
effectiveness of the actions of the Board of Managers in connection with the
transactions contemplated by this Agreement and the authenticity of the
Certificate of Formation and Operating Agreement of the Company;

          (d)  a certificate of the Secretary of State of the state of Delaware
to the effect that the Company is a limited liability company duly organized,
validly existing and in good standing under the laws of Delaware as of the
Closing Date;

          (e)  the Registration Rights Agreement in the form attached hereto as
Exhibit 4.1(e) (the "Registration Rights Agreement"), duly executed by the Class
--------------       -----------------------------
A Member;

          (f)  a Foreign Investment in Real Property Tax Act Affidavit pursuant
to Section 1445 of the Code, in the form attached hereto as Exhibit 4.1(f);
                                                            ---------------

          (g)  a Termination of Option Offer in the form attached hereto as
Exhibit 1.5(a), duly executed by each holder of an Option Offer;
--------------

          (h)  evidence in form and substance reasonably satisfactory to Onyx
that the Registration Rights Agreement dated August 16, 2000 between the Company
and the Unitholders has been terminated;

          (i)  an Onyx standard form of Employee Confidentiality and Invention
Agreement in the form attached hereto as Exhibit 4.1(i), executed by each of the
                                         --------------
Company's employees who have been offered and accepted employment with Onyx;

          (j)  written consents to the transactions contemplated by this
Agreement or waivers, as applicable, reasonably satisfactory in all respects to
Onyx, from each of the parties (other than the Company) to the agreements,
leases, notes or other documents, if any, identified in the Schedules to the
Company Disclosure Memorandum as requiring consent or waiver to consummate the
transactions contemplated by this Agreement;

          (k)  a spreadsheet (the "Consideration Spreadsheet"), in a form
                                   -------------------------
reasonably acceptable to Onyx and certified by an officer of the Company,
detailing (i) the number and class

                                      -20-
<PAGE>

of Company Units held by each Member and (ii) the amount of Onyx Common Stock
and cash to be received by each such Member at the Closing and thereafter
pursuant to Section 1.3;

          (l)  a spreadsheet (the "Replacement Option Spreadsheet"), in a form
                                  -------------------------------
reasonably acceptable to Onyx and certified by an officer of the Company,
detailing, (i) with respect to each Option Offer, the number of Class C Units
subject to such Option Offer and the exercise price thereof and the number of
Replacement Options to purchase shares of Onyx Common Stock to be received by
the holder of such Option Offer;

          (m)  evidence in form and substance reasonably satisfactory to Onyx
that the acceleration of vesting of all Class B Units has been accomplished;

          (n)  evidence in form and substance reasonably satisfactory to Onyx
that all warrants to purchase Class A Units have been terminated;

          (o)  the resignations, effective as of the Closing Date, of all
managers and officers of the Company;

          (p)  a completed Investor Questionnaire from each Member in the form
attached hereto as Exhibit 2A.6.;
                   -------------

          (q)  evidence in form and substance reasonably satisfactory to Onyx
that Section 4.1, Section 8.1.1 and Section 8.1.2 of the Operating Agreement of
the Company, dated July 15, 2000, have been terminated;

          (r)  an employment agreement, in the form previously agreed upon by
Onyx and the Company, duly executed by each of Kevin J. Corcoran, Kevin
Hoffberg, LaVon Koerner, Robert Cronin, Brad McCoy and Debra S. Rizzo
(collectively, the "Employment Agreements"); and
                    ---------------------

          (s)  facsimile copies of the Certificates (as defined below), together
with duly endorsed transfer instruments as are required for transfer of all of
the Company Units to Onyx; provided, however, that Onyx's obligation to issue
shares of Onyx Common Stock to the Unitholders at Closing pursuant to Section
1.3 shall not be triggered until all of the original Certificates have been
delivered to Onyx.  The term "Certificates" shall mean certificates representing
                              ------------
all of the Company Units.

4.2  Deliveries by Onyx

     Prior to the Closing, Onyx shall deliver to the Company and/or the Members:

          (a)  an opinion letter of Orrick, Herrington & Sutcliffe LLP, counsel
for Onyx, in form and substance reasonably satisfactory to the Members.

          (b)  a certificate of the Secretary of Onyx, in form and substance
reasonably satisfactory to the Company, as to the authenticity and effectiveness
of the actions of Onyx's

                                      -21-
<PAGE>

Board of Directors and the authorization of the transactions contemplated by
this Agreement and the Operative Documents;

          (c)  the Registration Rights Agreement, duly executed by Onyx;

          (d)  the Employment Agreements, duly executed by Onyx;

          (e)  an executed instruction letter to Onyx's transfer agent
instructing the transfer agent to issue stock certificates representing the
shares of Onyx Common Stock deliverable at Closing to the Unitholders pursuant
to Section 1.3 (such instruction letter to be delivered to Onyx's transfer agent
upon receipt of all of the original Certificates and which, upon delivery, shall
be irrevocable); and

          (f)  the cash payable under Section 1.3(b)(i), by Onyx company check
or wire transfer of immediately available funds.

                      ARTICLE V - POST-CLOSING COVENANTS

     The parties covenant and agree as set forth in this Article V.

5.1  Delivery of Certificates

     The Company and the Members shall cause the original Certificates and the
transfer documentation related thereto to be delivered to Onyx within a
reasonable time after Closing, but in any event no later than 5 business days
after the date of Closing. Onyx shall deliver the instruction letter referenced
in Section 4.1(e) upon receipt of all Certificates and all transfer
documentation related thereto.

5.2  Further Action; Commercially Reasonable Efforts

     In case at any time after the Closing any further action is necessary or
desirable to carry out the purposes of this Agreement or any Operative Document,
each of the parties hereto shall use commercially reasonable efforts to take, or
cause to be taken, all such action. Neither the Company nor the Members shall
undertake any cause of action inconsistent with this agreement or that would
make any representations, warranties or agreements made by the Company or the
Members in this Agreement or the Operative Documents untrue or misleading. After
the Closing, each party hereto, at the request of and without any further cost
or expense to the other parties, will take any further actions reasonably
necessary or desirable to carry out the purposes of this Agreement or any
Operative Document and to effect the issuance of the shares of Onyx Common Stock
to the Members pursuant to the terms and conditions hereof.

5.3  Tax Treatment

     The parties agree that for United States federal income tax purposes the
purchase of Company Units by Onyx and the cancellation of all warrants to
purchase Class A Units is treated by Onyx as the purchase of all of the assets
of the Company, and by the Company and each

                                      -22-
<PAGE>

Member as the sale of interests in a partnership, and the parties shall treat
the transaction accordingly.

5.4  Publicity

     No party hereto shall issue any press release or otherwise make any
statements to any third party with respect to this Agreement or the transactions
contemplated hereby other than the issuance by Onyx of a press release (and the
filing by Onyx of a Current Report on Form 8-K) announcing this Agreement and
the transactions contemplated hereby or as required by law.  Any party who is
required by law to make any such disclosure must provide notice in advance of
the disclosure to all other parties.  Such notice shall contain (a) the contents
of the proposed disclosure; (b) the reasons that the party contemplating
disclosure believes that disclosure is required by law; and (c) the proposed
time and place of such disclosure.

5.5  Noncompetition Agreement

     During the Noncompetition Term (as defined below), no Founder shall work
for or with, or provide services or information to, any of the following
competitors of Onyx:  Siebel Systems, Inc., Kana Communications, Inc., Nortel
Networks, e.piphany, Inc., Broadvision, Inc., Oracle Corporation, Pivotal
Software and PeopleSoft, Inc.  The "Noncompetition Term" shall mean that period
                                    -------------------
commencing on the Closing Date and ending on the latter of (i) the 18-month
anniversary of the Closing Date and (ii) the six-month anniversary of the
termination of such Founder's employment with Onyx.

5.6  Lock-Up Agreement

     To induce Onyx to enter into this Agreement and the Registration Rights
Agreement, the Class A Member hereby agrees:

          (a)  that it shall not, without the prior written consent of Onyx, for
the period commencing on the Closing Date and ending 60 days thereafter (the
"Lock-Up Period") offer, pledge, sell, contract to sell, sell any option or
---------------
contract to purchase, purchase any option or contract to sell, grant any option,
right or warrant to purchase, lend or otherwise transfer or dispose of shares of
Onyx Common Stock (other than any shares of Onyx Common Stock purchased by such
Class A Member in open market transactions after the date hereof), enter into
any transaction that would have the same effect, or enter into any swap, hedge
or other arrangement that transfers, in whole or in part, any of the economic
consequences of ownership of such shares of Onyx Common Stock, whether such
transaction is to be settled by delivery of shares of Onyx Common Stock or such
other securities, in cash or otherwise; and

          (b)  that it shall not, without the prior written consent of Onyx,
offer, pledge, sell, contract to sell, sell any option or contract to purchase,
purchase any option or contract to sell, grant any option, right or warrant to
purchase, lend or otherwise transfer or dispose of any shares of Onyx Common
Stock having an aggregate value greater than $900,000 in any one-week period
during or after the Lock-Up Period.  The foregoing sentence shall not apply to
transactions

                                      -23-
<PAGE>

relating to shares of Onyx Common Stock acquired in open market transactions
after completion of the transactions contemplated by this Agreement.

5.7  Assumption of Certain Obligations

     Onyx agrees and acknowledges that the Company's obligation to indemnify
Brad McCoy, Kevin Hoffberg and Debra S. Rizzo for loss, liability and damage
related to the Agent Contracts (as defined below), as created in that unanimous
written consent of the Board of Managers of the Company dated November 21, 2000,
shall survive the Closing until an Indemnity Termination Event (as defined
below). "Agent Contracts" shall mean the Standard Office Lease by and between
         ---------------
N&J #1, L.P./Monument Development, Inc. G.P. and Brad McCoy dated July 18, 2000,
the Apartment Lease Contract by and between Kevin Hoffberg and Post Properties,
L.P. dated September 6, 2000, the License Agreement by and between Courthouse
Executive Offices and the Company dated August 24, 2000, and the Citibank
Platinum Select Advantage Business Card Account No. 5588-3200-0102-7714.  With
respect to each Agent Contract, Onyx shall use commercially reasonable efforts
to either (a) formally transfer such Agent Contract, solely at the expense of
Onyx or RevenueLab, into the name of the Company or of Onyx or (b) terminate
such Agent Contract solely at the expense of Onyx or RevenueLab (each, an
"Indemnity Termination Event") promptly after the Closing Date.
----------------------------

                   ARTICLE VI - SURVIVAL AND INDEMNIFICATION

6.1  Survival

     All representations and warranties contained in this Agreement or in the
Transaction Documents or in any certificate delivered pursuant hereto or thereto
shall survive until the first anniversary of the Closing Date (the "Survival
                                                                    --------
Period"), and shall not be deemed waived or otherwise affected by any
------
investigation made or any knowledge acquired with respect thereto; provided,
however, that (a) the representations and warranties of the Company, the Members
and the Founders contained in Section 2.3 (Capitalization) shall survive
indefinitely; (ii) the representations and warranties of the Company, the
Members and the Founders contained in Section 2.8 (Taxes) and Section 2.14
(Employee Benefit Plans) shall survive the Closing until the expiration of the
applicable statute of limitations, plus 30 days, for the matter addressed in
each such representation and warranty; and (c) any claim relating to fraud shall
survive the Closing until the expiration of the applicable statute of
limitations.  The covenants and agreements contained in this Agreement shall
survive and continue until all obligations with respect thereto shall have been
performed or satisfied or shall have been terminated in accordance with their
terms.  Notwithstanding the foregoing, any representation or warranty in respect
of which indemnity may be sought pursuant to this Agreement shall survive past
the time that it would otherwise terminate if a Claim Notice (as defined in
Section 6.4) shall have been delivered to the Members.

6.2  Indemnification by the Members

     The Members severally and not jointly shall, on the Percentage Basis as
defined below, indemnify and hold Onyx and its officers, directors and
affiliates (the "Indemnified Parties")
                 -------------------

                                      -24-
<PAGE>

harmless from and against, and shall reimburse the Indemnified Parties for, any
and all loss, obligation, deficiency, damage, claim, liability, cost and expense
(including, without limitation, in the case of a claim by a third party, the
amount of any settlement entered into pursuant hereto, and all reasonable legal
fees and other expenses) ("Losses") arising out of (a) any inaccuracy or
                           ------
misrepresentation in, or breach of, any representation or warranty made by the
Company or any Member in this Agreement or in any Operative Document or in any
certificate delivered pursuant hereto or thereto; (b) any failure by the Company
or the Members to perform or comply, in whole or in part, with any covenant or
agreement in this Agreement or in any Operative Document; (c) any claim by any
third party arising out of the Company's operation of the Company's business or
the ownership, use or distribution of the Company's assets on or before the
Closing, other than claims arising from facts disclosed in the Company
Disclosure Memorandum; provided, however, that the foregoing exclusion shall not
apply to the facts disclosed in paragraph 1 of Schedule 2.12 of the Company
Disclosure Memorandum; (d) all liability for taxes of the Company assessed
during or attributable to any taxable period ending on or prior to the Closing,
and the portion of any taxable period that includes, but does not end on, the
Closing Date to the extent such taxes exceed the reserve for tax liability
(rather than any reserve for deferred taxes established to reflect timing
differences between book and tax income) set forth on the face of the Company
Balance Sheet (rather than in any notes thereto); and (e) any liability for
Taxes resulting from the transactions contemplated by this Agreement, including,
without limitation, transfer, sales, use, excise, conveyance and similar taxes.
The "Percentage Basis" applicable to the indemnification obligations set forth
     ----------------
in this Article VI shall mean that 60% of such obligation is allocated to the
Class A Member, and the remaining 40% of such obligation is allocated to the
Class B Members as a group, such 40% to be allocated pro rata among the Class B
Members according to the portion of the total Class B Consideration that each
Class B Member received under Section 1.3 hereof. LaVon Koerner and Debra S.
Rizzo shall severally but not jointly indemnify and hold the Indemnified Parties
harmless from and against, and shall reimburse the Indemnified Parties for, any
Losses arising out of the litigation identified in paragraph 1 of Schedule 2.12
to the Company Disclosure Memorandum (the "Litigation").
                                           ----------

6.3  Threshold and Limitations

          (a)  The Indemnified Parties shall not be entitled to receive any
indemnification payment with respect to any claims for indemnification under
this Article VI ("Claims") until the aggregate Losses for which such Indemnified
                  ------
Parties would otherwise be entitled to indemnification exceed $75,000 (the
"Threshold"); provided, however, that once the aggregate Losses exceed the
----------
Threshold, such Indemnified Parties shall be entitled to indemnification for the
aggregate amount of all Losses without regard to the Threshold.

          (b)  The aggregate liability of the Members pursuant to this Article
VI (except for Losses based on fraud or the representations and warranties in
Article IIA or, in the case of LaVon Koerner and Debra S. Rizzo, any Losses
arising out of the Litigation) shall be limited to $2.92 million, of which $1.75
million (60%) shall be allocated to the Class A Member and $1.17 million (40%)
shall be allocated to the Class B Members (pro rata among the Class B Members
according to the portion of the total Class B Consideration that each Class B
Member received under Section 1.3).

                                      -25-
<PAGE>

          (c)  An indemnifying party shall not be obligated to defend and hold
harmless an Indemnified Party, or otherwise be liable to such party, with
respect to any claims made by the Indemnified Party after the expiration of the
Survival Period or other applicable time limitation described in Section 6.1,
except that indemnity may be sought after the expiration of the Survival Period
or other applicable time limitation if a Claim Notice (as defined below) shall
have been delivered to the Members prior to the end of the Survival Period.

          (d)  Notwithstanding the foregoing, Losses incurred by any Onyx
Indemnified Party arising out of or with respect to any inaccuracy or
misrepresentation in, or breach of, any representation or warranty contained in
Section 2.3 shall not be subject to the Threshold, but shall instead be
indemnified by the Members from the first dollar incurred.

          (e)  An Indemnified Party shall not be entitled to receive any
indemnification payment and no indemnifying party shall be obligated to defend
or hold harmless an Indemnified Party, or otherwise be liable to such
Indemnified Party for any Loss incurred by such Indemnified Party, unless such
Indemnified Party pursues its claim for such Loss against all Members from whom
indemnification may be sought under Section 6.2 for their Percentage Allocation
of the Loss; provided however, that nothing in this Section 6.3(e) shall require
Onyx to pursue any claim for any Loss against any individual Member if, in
Onyx's good faith estimate, the cost of pursuing such claim against such party
would exceed the anticipated Loss or Losses that would be recoverable from such
party.

6.4  Procedure for Indemnification

          (a)  The Indemnified Party shall give written notice (the "Claim
                                                                     -----
Notice") of any Claim to the indemnifying party as promptly as practicable, but
------
in any event:  (i) if such Claim relates to the assertion against an Indemnified
Party of any claim by a third party (a "Third-Party Claim"), within 30 days
                                        -----------------
after the assertion of such Third-Party Claim or (ii) if such Claim is not in
respect of a Third-Party Claim, within 30 days after the discovery of facts upon
which the Claim for indemnification is or could have been based pursuant to this
Article VI; provided, however, that the failure or delay to so notify the
indemnifying party shall not relieve the indemnifying party of any obligation or
liability that the indemnifying party may have to the Indemnified Party, except
to the extent that the indemnifying party demonstrates that the indemnifying
party's ability to defend or resolve such Claim is adversely affected thereby.
Any such Claim Notice shall describe the facts and circumstances on which the
asserted Claim for indemnification is based, the amount thereof if then
ascertainable and, if not then ascertainable, the estimated maximum amount
thereof, and the provisions of this Agreement on which the Claim is based.

          (b)  (i)  Subject to the rights of or duties to any insurer or other
third party having potential liability therefor, the indemnifying party shall
have the right, upon written notice given to the Indemnified Party within 30
days after receipt of the notice from the Indemnified Party of any Third-Party
Claim, to assume the defense or handling of such Third-Party Claim, at the
indemnifying party's sole expense, in which case the provisions of Section
6.4(b)(ii) shall govern.

                                      -26-
<PAGE>

               (ii) The indemnifying party shall select counsel reasonably
acceptable to the Indemnified Party in connection with conducting the defense or
handling of such Third-Party Claim, and the indemnifying party shall defend or
handle the same in consultation with the Indemnified Party and shall keep the
Indemnified Party timely apprised of the status of such Third-Party Claim. The
indemnifying party shall not, without the prior written consent of the
Indemnified Party, agree to a settlement of any Third-Party Claim, unless (A)
the settlement provides an unconditional release and discharge of the
Indemnified Party and the Indemnified Party is reasonably satisfied with such
discharge and release and (B) the Indemnified Party shall not have reasonably
objected to any such settlement on the ground that the circumstances surrounding
the settlement could result in an adverse impact on the business, operations,
assets, liabilities (absolute, accrued, contingent or otherwise), condition
(financial or otherwise) or prospects of the Indemnified Party. The Indemnified
Party shall cooperate with the indemnifying party and shall be entitled to
participate in the defense or handling of such Third-Party Claim with its own
counsel and at its own expense.

          (c)  (i)  If the indemnifying party does not give written notice to
the Indemnified Party within 30 days after receipt of the notice from the
Indemnified Party of any Third-Party Claim of the indemnifying party's election
to assume the defense or handling of such Third-Party Claim, the provisions of
Section 6.4(c)(ii) shall govern.

               (ii) The Indemnified Party may, at the indemnifying party's
expense (which shall be paid from time to time by the indemnifying party as such
expenses are incurred by the Indemnified Party), select counsel in connection
with conducting the defense or handling of such Third-Party Claim and defend or
handle such Third-Party Claim in such manner as it may deem appropriate;
provided, however, that the Indemnified Party shall keep the indemnifying party
timely apprised of the status of such Third-Party Claim and shall not settle
such Third-Party Claim without the prior written consent of the indemnifying
party, which consent shall not be unreasonably withheld. If the Indemnified
Party defends or handles such Third-Party Claim, the indemnifying party shall
cooperate with the Indemnified Party and shall be entitled to participate in the
defense or handling of such Third-Party Claim with its own counsel and at its
own expense.

          (d)  Upon final determination of liability in respect of a Claim, the
indemnifying party or parties shall pay to the Indemnified Party, in accordance
with the Percentage Basis and within 10 days after such determination, the
amount of such Claim as finally determined. Upon the payment in full of any
Claim the entity making payment shall be subrogated to the rights of the
Indemnified Party against any person, firm or corporation with respect to the
subject matter of such Claim.

                             ARTICLE VII - GENERAL

7.1  Expenses

     Regardless of whether the transactions contemplated by this Agreement are
consummated, each party will pay its own fees and expenses incident to the
negotiation, preparation and execution of this Agreement (including legal fees
and accounting expenses);

                                      -27-
<PAGE>

provided, however, that the fees incurred by the Company in connection with this
Agreement and the Operative Documents in excess of $75,000 shall reduce the
Closing Cash by any amount in excess of $75,000; and provided further, should
any action be brought hereunder, the attorneys' fees and expenses of the
prevailing party shall be paid by the other party to such action.

7.2  Notices

     Any notice, request or demand desired or required to be given hereunder
shall be in writing given by personal delivery, confirmed facsimile transmission
or overnight courier service, in each case addressed as set forth below or to
such other address as any party shall have previously designated by such a
notice. The effective date of any notice, request or demand shall be the date of
personal delivery, the date on which successful facsimile transmission is
confirmed or the date actually delivered by a reputable overnight courier
service, as the case may be, in each case properly addressed as provided herein
and with all charges prepaid.

     TO ONYX:

          Onyx Software Corporation
          3180 139th Ave. S.E., Suite 500
          Bellevue, Washington  98005
          Fax: (425) 732-2413
          Attention: General Counsel

     with a copy to:

          Orrick, Herrington & Sutcliffe LLP
          701 Fifth Avenue, Suite 6500
          Seattle, Washington 98104
          Fax: (206) 839-4301
          Attention: Stephen M. Graham
                     Alan C. Smith

     TO EACH MEMBER:

     At the address provided on the signature page to this Agreement, or at the
last address provided by such Member pursuant to this Section 7.2.

     TO THE COMPANY:

          RevenueLab, LLC
          16 Ocean View Drive
          Stamford, Connecticut 06902
          Fax: (203) 327-9097
          Attention: Chief Executive Officer

                                      -28-
<PAGE>

     with a copy to:

          Ross & Hardies
          150 North Michigan Ave., Suite 2500
          Chicago, Illinois 60601
          Fax: (312) 750-8600
          Attention: Michael C. Cook, Esq.

7.3  Severability

     If any term or other provision of this Agreement is invalid, illegal or
incapable of being enforced by any rule of law, or public policy, all other
conditions and provisions of this Agreement shall nevertheless remain in full
force and effect so long as the economic or legal substance of the transactions
contemplated hereby is not affected in any manner adverse to any party. Upon
such determination that any term or other provision is invalid, illegal or
incapable of being enforced, the parties hereto shall negotiate in good faith to
modify this Agreement so as to effect the original intent of the parties as
closely as possible in a mutually acceptable manner in order that the
transactions contemplated hereby be consummated as originally contemplated to
the fullest extent possible.

7.4  Entire Agreement

     This Agreement and the Operative Documents constitute the entire agreement
among the parties with respect to the subject matter hereof and thereof and
supersede all prior agreements and undertakings, both written and oral, among
the parties, or any of them, with respect to the subject matter hereof and
thereof.

7.5  Specific Performance

     Each of the parties hereto acknowledges and agrees that the other parties
hereto would be damaged irreparably in the event any of the provisions of this
Agreement are not performed in accordance with their specific terms or otherwise
are breached. Accordingly, each of the parties hereto agrees that the other
parties hereto shall be entitled to an injunction to prevent breaches of the
provisions of this Agreement and to enforce specifically this Agreement and the
terms and provisions hereof (including, without limitation, Article VI and
Section 5.3) in any competent court having jurisdiction over the parties, in
addition to any other remedy to which they may be entitled at law or in equity;
provided, however, that this Section 7.5 shall not apply until after the
Closing.

7.6  Assignment

     This Agreement shall not be assigned by operation of law or otherwise.
Notwithstanding the foregoing, Onyx's rights and obligations under this
Agreement may be assigned to and assumed by any other corporation wholly owned
(directly or through intermediate wholly owned subsidiaries) by Onyx, provided
that no such assignment shall be made that would affect the economic or legal
substance of the transactions contemplated hereby, and provided, further, that

                                      -29-
<PAGE>

if any proposed assignment would affect the form of consideration payable to any
Member, such assignment shall not be made without the written consent of the
affected Member.

7.7  Parties in Interest

     This Agreement shall be binding upon and inure solely to the benefit of the
parties hereto and their respective successors, heirs, legal representatives and
permitted assigns, and nothing in this Agreement, express or implied, is
intended to or shall confer upon any other Person any right, benefit or remedy
of any nature whatsoever under or by reason of this Agreement.

7.8  Governing Law; Venue

     This Agreement shall be governed by, and construed in accordance with, the
laws of the state of Washington applicable to contracts executed in and to be
performed in that state.  The parties irrevocably consent to the jurisdiction
and venue of the state and federal courts located in King County, Washington in
connection with any action related to this Agreement.

7.9  Headings

     The descriptive headings contained in this Agreement are included for
convenience of reference only and shall not affect in any way the meaning or
interpretation of this Agreement.

7.10 Counterparts

     This Agreement may be executed and delivered (including by facsimile
transmission) in one or more counterparts, and by the different parties hereto
in separate counterparts, each of which when executed and delivered shall be
deemed to be an original but all of which taken together shall constitute one
and the same agreement.

7.11 Waiver of Jury Trial

     Each of Onyx, the Company and each Member hereby irrevocably waives all
right to trial by jury in any action, proceeding or counterclaim (whether based
on contract, tort or otherwise) arising out of or relating to this Agreement,
the transactions contemplated hereby or the actions of such parties in the
negotiation, administration, performance and enforcement hereof.

                                      -30-
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have entered into and signed this
Unit Purchase Agreement as of the date and year first above written.

                                 ONYX SOFTWARE CORPORATION

                                 By /s/ Brent Frei
                                    ---------------------------------------
                                 Name Brent Frei
                                      -------------------------------------
                                 Its Chief Executive Officer
                                     --------------------------------------

                                 REVENUELAB, LLC

                                 By /s/ Debby Rizzo
                                    ---------------------------------------
                                 Name Debby Rizzo
                                      -------------------------------------
                                 Its COO
                                     --------------------------------------

                                 MEMBERS

                                 /s/ Kevin Corcoran
                                 ------------------------------------------
                                 Kevin J. Corcoran
                                 address: 16 Ocean View Dr
                                          ---------------------------------
                                          Stamford, CT 06902
                                          ---------------------------------
                                 Fax: (203) 372-9098
                                      -------------------------------------

                                 /s/ Brad McCoy
                                 ------------------------------------------
                                 Brad McCoy
                                 address: 1109 Monument St.
                                          ---------------------------------
                                          Pacific Palisades, CA 90272
                                          ---------------------------------
                                 Fax: 435-309-7695
                                      -------------------------------------

                                 /s/ Debra S. Rizzo
                                 ------------------------------------------
                                 Debra S. Rizzo
                                 address: 84 Montclair Rd
                                          ---------------------------------
                                          Vernon Hills, IL 60061
                                          ---------------------------------
                                 Fax: 360-234-9593
                                      -------------------------------------

<PAGE>

                                 /s/ Kevin Hoffberg
                                 -----------------------------------------
                                 Kevin Hoffberg
                                 address: 41 Olympic Oaks
                                          --------------------------------
                                          Lafayette, CA 94549
                                          --------------------------------
                                 Fax: 240-376-4342
                                      ------------------------------------

                                 /s/ Robert Cronin
                                 -----------------------------------------
                                 Robert Cronin
                                 address: 23 Bristol Rd
                                          --------------------------------
                                          Wellesley, MA 02481
                                          --------------------------------
                                 Fax:
                                      ------------------------------------

                                 /s/ LaVon Koerner
                                 -----------------------------------------
                                 LaVon Koerner
                                 address: PO Box 218
                                          --------------------------------
                                          Wayne, IL 60184
                                          --------------------------------
                                 Fax: 630-584-5741
                                      ------------------------------------

                                 ODYSSEY STRATEGIC PARTNERS, LLC

                                 By  /s/ Walter Schindler
                                     -------------------------------------

                                 Its Chairman and Chief Executive Officer
                                     -------------------------------------
                                 address: 610 Newport Center Drive
                                          --------------------------------
                                          Suite 1350
                                          --------------------------------
                                          Newport Beach, CA 92660
                                          --------------------------------
                                 Fax: 949-509-7200
                                      ------------------------------------

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