Document:

<Page>
                              CONSULTING AGREEMENT

    This CONSULTING AGREEMENT, dated as of May 16, 2001 (the "AGREEMENT"), by
and among Carrier1 International S.A., a Luxembourg SOCIETE ANONYME (the
"COMPANY"), and Victor A. Pelson, an individual residing at 9 Woodstone Road,
Chester, NJ 07930 ("Consultant").

                                  WITNESSETH:

    WHEREAS, Consultant is currently serving as the Chairman of the Board of
Directors, and is performing such functions as are customary for a non-executive
Chairman of a Luxembourg SOCIETE ANONYME, and;

    WHEREAS, in addition to Consultant's role as Chairman, the Company and
Consultant have agreed that it is mutually beneficial for Consultant to provide
additional services to the Company as a consultant;

    WHEREAS, the Company desires to receive financial and managerial advisory
services from Consultant, and Consultant desires to provide such services to the
Company;

    NOW, THEREFORE, in consideration of the premises and the respective
agreements hereinafter set forth and the mutual benefits to be derived herefrom,
the Company and Consultant hereby agree as follows:

    1.  ENGAGEMENT. The Company hereby engages Consultant as a consultant, and
Consultant hereby agrees to provide financial and managerial advisory services
to the Company, all on the terms and subject to the conditions set forth below.

    2.  CONSULTING SERVICES. Consultant hereby agrees, during the term of this
Agreement, to provide to the Company consulting services commensurate with his
status and experience with respect to such matters as shall be reasonably
requested from time to time by the Board. Consultant shall not, by virtue of the
consulting services provided hereunder, be considered to be an officer or
employee of the Company during the Consulting Period, and shall not have the
power or authority to contract in the name of or bind the Company, except as may
be expressly stated in a written delegation of such authority from the Board.
The Services to be provided will not be in connection with the offer or sale to
securities in a capital raising and do not directly or indirectly promote or
maintain a market for the issuer's securities.

    3.  CONSULTING FEES. (a) The Company agrees to pay to Consultant, as
compensation for the Services to be rendered by Consultant hereunder, a fee of
$16,667 per month (the "Consulting Fee"), payable on the last working day of
each month during the term hereof in arrears commencing on May 31, 2001. For the
period commencing on May 16, 2001 until May 31, 2001 the Company will pay the
fee of on a pro rata basis.

    4.  GRANT OF OPTIONS. (a) Pursuant to the provisions of the Company's Share
Option Plan 2000 (effective as of March 30, 2000), the Company will grant to
Consultant, subject to the terms and conditions of the Plan and the respective
Option Agreement, unless otherwise specified in the terms and conditions set
forth herein, the right and option (the "Option") to purchase from the Company
250,000 Option Shares at a purchase price equal to US$6.15 (based on the closing
strike price on NASDAQ of US$1.23 on May 15, 2001 multiplied by five times) per
Share plus the amount of any capital duty payable by the Company or the
Consultant in respect of the issuance of such Option Shares (the "Exercise
Price").
<Page>
    (b)  Each Option shall become exercisable for the respective percentage of
the total number of Shares subject to the Option as is set forth opposite the
applicable date below:

<Table>
<Caption>

<S>                                                           <C>
On or after the Date of Grant but prior to the first six
  (6) month Anniversary of the date of beginning of this
  Agreement with the Company (the "Applicable Date")                  0%

On or after the first six (6) month Anniversary of the
  Applicable Date but prior to the first Anniversary of the
  Applicable Date                                                    50%

On the first twelve (12) month Anniversary of the Applicable
  Date.                                                             100%
</Table>

    (c)  Notwithstanding the foregoing, each Option shall automatically vest in
its entirety upon the effective date of a Change in Control (as defined in the
Plan).

    5.  REIMBURSEMENT OF EXPENSES. The Company agrees to promptly pay or to
reimburse Consultant for such travel, lodging and other appropriate expenses
(including travel, lodging and similar expenses for Consultant's spouse) (the
"EXPENSES") as incurred by Consultant in his reasonable judgment in the course
or on account of rendering any Services requested of him hereunder by the Board.
The Consultant may submit periodic expense statements, which shall be payable by
the Company within 30 days of receipt.

    6.  TERM. The Term of this Agreement shall be for twelve (12) months
commencing on the date hereof, provided that either party may terminate this
Agreement at any time by giving fifteen (15) days written notice to the other
party.

    7.  INDEMNIFICATION. The Company agrees to indemnify Consultant and hold
harmless Consultant to the fullest extent permitted by law from and against, and
to pay or reimburse, any and all costs, expenses, damages and claims and
personal liability (including judgments, fines, amounts paid in settlement and
out-of pocket expenses, including reasonable attorneys' fees) that may be
incurred by Consultant in the conduct of the business and affairs of the Company
or any affiliate of the Company (including, but not limited to, all costs,
expenses, damages and claims and personal liability arising from any association
with or, services performed for, any person, entity, partnership or corporation
with respect to which the Company has requested, or Consultant requested and the
Company subsequently approved, Consultant to become associated with or to
perform services for (an "APPROVED ENTITY") in any official capacity, PROVIDED
that each participating indemnifying entity of the Company shall be required to
contribute to indemnification of Consultant only to the extent that such
conduct, action or inaction is indemnifiable under the laws of the jurisdiction
of organization of the indemnifying entity and provided further that, with
respect to services performed for an Approved Entity, the indemnifying entity
shall be subrogated to the rights of Consultant against such Approved Entity.
Payment shall be made within 30 days of submission of any bills or other
documents stating the sums due. The Company shall use its reasonable best
efforts at all times during the Consulting Period to maintain appropriate
directors' and officers' liability insurance to support the Company's obligation
to indemnify Consultant.

    8.  DISPUTES. Any controversy or claim arising out of or relating to this
Agreement, or any breach thereof, shall be settled by arbitration in accordance
with the rules of the American Arbitration Association then in effect in the
State of New York, and judgment upon such award rendered by the arbitrator(s)
may be entered in any court having jurisdiction thereof. The arbitration shall
be held in New York City, State of New York. The cost of the arbitration shall
be borne by the Company.

    9.  LEGAL FEES. Upon submission by Consultant of an itemized bill, the
Company shall reimburse Consultant on a monthly basis for all legal fees and
other expenses reasonably incurred by Consultant to obtain any benefit or
enforce any right accorded to Consultant under the Agreement or to defend any
claim against Consultant brought by the Company to enforce any provision of this
Agreement.

    10.  GOVERNING LAW. This Agreement shall be governed by and construed in
accordance with the laws of the State of New York, without reference to
principles of conflict of law that would require the application of the law of
another jurisdiction, and the invalidity or unenforceability of any provisions
<Page>
hereof shall in no way affect the validity or enforceability of any other
provision. The Company and Consultant hereby irrevocably submit to the
jurisdiction of the courts of the State of New York and the Federal courts of
the United States of America, in each case located in the State, City and County
of New York, solely in respect of the interpretation and enforcement of the
provisions of this Agreement, and hereby waive as a defense, and agree not to
assert as a defense, in any action, suit or proceeding for the interpretation or
enforcement hereof, that it is not subject thereto or that such action, suit or
proceeding may not be brought or is not maintainable in such courts or that the
venue thereof may not be appropriate or that this Agreement may not be enforced
in or by such courts, and the parties hereto irrevocably agree that all claims
with respect to such action or proceeding shall be heard and determined in such
a Federal court. The Company and Consultant hereby consent to and grant any such
court jurisdiction over the person of such parties and over the subject matter
of any such dispute and agree that mailing of process or other papers in
connection with any such action or proceeding in the manner provided in
Section 13 below, or in such other manner as may be permitted by law, shall be
valid and sufficient service thereof.

    11.  COUNTERPARTS. This Agreement may be executed in several counterparts,
each of which shall be deemed an original and all of which shall together
constitute one and the same instrument.

    12.  MISCELLANEOUS. The headings contained in this Agreement are for
reference purposes only and shall not affect in any way the meaning or
interpretation of this Agreement. No amendment, modification, supplement or
discharge of this Agreement, and no waiver hereunder, shall be valid or binding
unless set forth in writing.

    13.  NOTICES. Any notices or other communication required or permitted to be
given or made under this Agreement by one party to the other parties shall be
sufficient if in writing and if delivered in hand or sent by registered or
certified mail to the Consultant at the last address filed in writing with the
Company or, in the case of the Company, at the address noted above.

    IN WITNESS WHEREOF, the parties have duly executed this Agreement as of the
date first above written.

<Table>
<S>                                                    <C>  <C>
                                                       CARRIER1 INTERNATIONAL, S.A.

                                                       By:              /s/ STIG JOHANSSON
                                                            -----------------------------------------
                                                                          Stig Johansson
                                                                             DIRECTOR

                                                       By:             /s/ JONATHAN E. DICK
                                                            -----------------------------------------
                                                                         Jonathan E. Dick
                                                                             DIRECTOR
</Table>

<Table>
<S>                                                    <C>  <C>
                                                       CONSULTANT

                                                       By:             /s/ VICTOR A. PELSON
                                                            -----------------------------------------
                                                                         Victor A. Pelson
</Table><Page>

                                                                    Exhibit 10.1

                         WAIVER AND EXTENSION AMENDMENT

     This WAIVER AND EXTENSION AMENDMENT (this "Amendment") is entered into as
of the 15th day of May, 2001 (the "Effective Date"), by and among LaSalle Bank
National Association, a national banking association (f/k/a LaSalle National
Bank), as Administrative Agent for the Lenders described below (in such
capacity, the "Administrative Agent") and as Issuing Bank (the "Issuing Bank"),
the Lenders described below and CCC Information Services Inc., a Delaware
corporation ("Borrower").

                              W I T N E S S E T H:

     WHEREAS, Administrative Agent, the Issuing Bank, the Lenders parties
thereto and Borrower have entered into that certain Amended and Restated Credit
Facility Agreement dated as of October 29, 1998, as amended by that certain
Waiver and Amendment to Amended and Restated Credit Facility Agreement dated as
of October 20, 2000, as further amended by that certain Second Waiver and
Amendment to Amended and Restated Credit Facility Agreement dated as of February
15, 2001, and as amended by that certain Waiver and Third Amendment to Amended
and Restated Credit Facility Agreement ("Amendment - Third") (collectively, as
may be further amended, supplemented or otherwise modified, the "Credit
Agreement");

     WHEREAS, in connection with the Amendment - Third, the Administrative Agent
and Borrower have entered into that certain Post-Closing Matters Agreement dated
as of April 17, 2001(the "PCM Agreement");

     WHEREAS, the Borrower has requested an extension of time to complete
certain obligations and to waive certain other obligations under the Credit
Agreement and PCM Agreement as is more fully set forth below;

     WHEREAS, the Borrower desires to correct SCHEDULE 5.7(e) to the Credit
Agreement and SCHEDULE V to that certain Amended and Restated Security Agreement
(the "Security Agreement") dated as of April17, 2001, between Borrower and
Administrative Agent; and

     WHEREAS, the Borrower and the Administrative Agent, Issuing Bank and
Lenders have agreed to enter into this Waiver and Extension Amendment on the
terms and subject to the conditions hereafter set forth.

     NOW, THEREFORE, for and in consideration of such waivers and the premises
and mutual agreements herein contained and for the purposes of setting forth the
terms and conditions of this Amendment, the parties, intending to be bound,
hereby agree as follows:

     1. INCORPORATION OF THE AGREEMENT. All capitalized terms which are not
defined hereunder shall have the same meanings as set forth in the Credit
Agreement. To the extent any terms and provisions of the Credit Agreement are
inconsistent with the amendments set forth in Section 2 below, such terms and
provisions shall be deemed superseded hereby. Except as specifically set forth
herein, the Credit Agreement shall remain in full force and effect and its
provisions shall be binding on the parties hereto.

<Page>

     2. AMENDMENT OF THE AGREEMENTS. Subject to the terms and conditions
contained herein, on and after the date of this Amendment, the parties hereto
agree as follows:

     (a) SCHEDULE 5.7(e) to the Credit Agreement is hereby deleted in its
entirety and replaced by the revised SCHEDULE5.7(e) attached hereto. All
references to SCHEDULE 5.7(e) throughout the Credit Agreement shall be
references to revised SCHEDULE 5.7(e) attached hereto.

     (b) SCHEDULE V to the Security Agreement, is hereby deleted in its entirety
and replaced by the revised SCHEDULE V attached hereto. All references to
SCHEDULE V in the Security Agreement shall be references to SCHEDULE V attached
hereto.

     (c) The requirements of Section 4.2.1 in respect of the month of March
2001, and any Default or Event of Default which may have occurred as a result of
the Borrower's failure to fulfill such requirements, are hereby waived,
PROVIDED, that Borrower shall have provided the Administrative Agent and the
Banks with copies of the monthly financial statements required by the first
sentence of Section 4.2.1 on or before the Effective Date.

     (d) The requirements of Section 4.3 in respect of the consolidated cash
flow forecasts due April 25, 2001 and May 2, 2001, and any Default or Event of
Default which may have occurred as a result of the Borrower's failure to fulfill
such requirements, are hereby waived.

     (e) Section 4.15.4(c) and SCHEDULE B of the Credit Agreement and Section 3
of the PCM Agreement are hereby amended by extending the date by which Borrower
is required to pledge or cause to be pledged all of the capital stock or other
equity interests held by Borrower or its Subsidiaries in CCC Canada, CCC
International and CCC Rayfield, as required by such sections, to and including
June 15, 2001.

     (f) Section 4.15.4(c) and SCHEDULE B of the Credit Agreement and Section 4
of the PCM Agreement are hereby amended by extending the date by which Borrower
is required to pledge or cause to be pledged, or to provide a negative pledge,
of all of the capital stock or other equity interests held by Borrower or its
Subsidiaries in CCC Enterstand JV, CCC Choice Parts JV, Info4cars.com, Inc.,
ChannelPoint LLC and CCC Norris, as required by such sections, to and including
June15 2001. Section 4 of the PCM Agreement is hereby further amended by
inserting a new clause (e) to such section as follows:

     ",(e) ChannelPoint LLC."

     (g) Section 4.15.4(d) of the Credit Agreement and Section 10 of the PCM
Agreement are hereby amended by extending the date by which Borrower is required
to cause each Foreign Subsidiary to execute and deliver a guaranty, security
agreement and related documents, as required by such sections, to and including
June 15, 2001.

     (h) Section 4.15.5 of the Credit Agreement and Section 6 of the PCM
Agreement are hereby amended by (i) extending the date by which Borrower is
required to cause each Foreign Subsidiary to execute and deliver an Assignment
of Bank Account Agreement or similar agreement, to the extent required by such
sections, to and including June 15, 2001 and (ii) extending the date by which
Borrower is required to cause CCC Consumer SE to execute and

                                       2
<Page>

deliver an Assignment of Bank Account Agreement as required by such sections, to
and including June 15, 2001, PROVIDED that all funds in all accounts of CCC
Consumer SE for which an Assignment of Bank Account Agreement has not been
obtained shall not at any time exceed $25,000 in the aggregate.

     (i) Article 5 of the Credit Agreement is hereby amended by inserting the
following as SECTION 5.20 of the Credit Agreement:

     "5.20. INFORMATION CONCERNING FOREIGN SUBSIDIARIES AND JOINT VENTURES.
     Borrower will, and will cause its Subsidiaries to, provide to
     Administrative Agent and the Banks, on or before May 31, 2001, information
     as of a recent date, concerning the assets, properties, operation and
     affairs of each of the Foreign Subsidiaries, CCC Enterstand JV and each of
     their other respective joint ventures as may be requested by the
     Administrative Agent, and will, and will cause its Subsidiaries to, cause
     their respective officers and auditors to discuss such matters with
     Administrative Agent and the Consultant, as requested by Administrative
     Agent."

     (j) Section 8 of the PCM Agreement is hereby amended by extending the date
by which Borrower is required to deliver to the Administrative Agent, Landlord
Waivers and related documents with respect to the leased real property of CCC
Consumer SE and the CCC PCS Subsidiaries, as required by such section, to and
including June 15, 2001.

     (k) Section 9.17(6) of the Credit Agreement is hereby amended and restated
as follows:

     "9.1.17(6). `CCC NORRIS' means D.W. Norris Limited, a private liability
     company organized under the laws of the United Kingdom."

     (l) Section 9.1.17(16) of the Credit Agreement is hereby amended and
restated as follows:

     "9.1.17(16). `CCC ENTERSTAND JV' means Enterstand Limited, a private
     limited company incorporated under the laws of England and Wales."

     (m) Section 11 of the PCM Agreement is hereby amended by extending the date
by which Borrower is required to deliver to the Administrative Agent corporate
authorizations and related documents from the Foreign Subsidiaries, as required
by such section, to and including June 15, 2001.

     (n) Section 13 of the PCM Agreement is hereby waived (i) with respect to
any third party customer having computer hardware collateral with a value
(which, for these purposes, shall mean the greater of book value and fair market
value) of less than $50,000 in the aggregate (or, with respect to State Farm
Insurance, $250,000) as of the Effective Date and (ii) with respect to the
computer equipment located at Acxiom in Downers Grove, Illinois as of

                                       3
<Page>

the Effective Date, provided, that such computer equipment is moved on or before
June 15, 2001 to one of Borrower's locations for which a Landlord Waiver has
been delivered to Administrative Agent.

     3. REPRESENTATIONS, COVENANTS AND WARRANTIES; NO DEFAULT.

     (a) This Amendment has been duly authorized by all necessary corporate
action on the part of the Borrower, has been duly executed by the Borrower and
constitutes legal, valid and binding obligations of the Borrower, and is
enforceable against the Borrower in accordance with its terms except to the
extent enforceability hereof is limited by applicable bankruptcy, insolvency or
similar laws affecting creditors' rights generally.

     (b) Except for the representations and warranties of Borrower made as of a
particular date and except as set forth on Schedule A-3 to the Amendment-Third,
the representations, covenants and warranties set forth in ARTICLE 3 of the
Credit Agreement after giving effect to this Amendment shall be deemed remade as
of the date hereof by Borrower; PROVIDED, HOWEVER, that any and all references
to the Credit Agreement in such representations and warranties shall be deemed
to include this Amendment and all prior express written waivers and amendments.

     (c) No Default or Event of Default has occurred and is continuing after
giving effect to this Amendment and all prior express written waivers and
amendments.

     4. FEES AND EXPENSES. Borrower agrees to pay on demand all reasonable costs
and expenses of or incurred by Administrative Agent in connection with the
evaluation, negotiation, preparation, execution and delivery of this Amendment
and the other instruments and documents executed and delivered in connection
with the transactions described herein (including the filing or recording
thereof), including, but not limited to, the reasonable fees and expenses of
counsel for the Administrative Agent.

     5. DELIVERY OF DOCUMENTS AT CLOSING. At the closing of this Amendment,
Administrative Agent shall have received from Borrower the following documents,
fully executed by the Borrower, CCC Information Services Group Inc., and the
Restricted Subsidiaries, as applicable, in form and substance satisfactory to
Administrative Agent:

          (a) This Amendment; and

          (b) A secretary's certificate from the Borrower, together with
Borrower's Organic Documents (or certification that such documents have not
changed since April 17, 2001), incumbency certifications and authorizing
resolutions and documents.

     6. EFFECTUATION. This Amendment shall be deemed effective upon receipt by
Administrative Agent of (i) six (6) counterpart signature pages duly executed on
behalf of the Borrower and each Subsidiary, as applicable of each of the
documents set forth in Section 5, and (ii) executed signature pages to this
Amendment from at least that number of Lenders that constitute Required Lenders
under the Credit Agreement. THERE ARE NO OTHER CONDITIONS PRECEDENT TO THE
EFFECTIVENESS OF THIS AMENDMENT.

                                       4
<Page>

     7. CONTINUING EFFECT. Except as specifically modified above, the Credit
Agreement, the PCM Agreement, the Security Agreement and all other documents,
instruments and agreements executed and/or delivered in connection therewith
shall remain in full force and effect, and are hereby ratified and confirmed.
The execution, delivery and effectiveness of this Amendment shall not operate as
a waiver of any right, power or remedy of the Administrative Agent or the
Lenders, nor constitute a waiver of any provision of the Credit Agreement or any
other documents, instruments or agreements executed and/or delivered in
connection therewith (except as expressly set forth herein). Nothing herein
shall constitute a waiver by the Administrative Agent or the Lenders of any
existing (except as expressly waived above) or hereafter arising Default or
Event of Default nor shall the Administrative Agent's and the Lenders' execution
and delivery of this Amendment establish a course of dealing among the
Administrative Agent, the Lenders, the Borrower or any other obligor or in any
other way obligate the Administrative Agent or any Lenders to provide hereafter
any further consents, waivers or modifications with respect to the Credit
Agreement.

     8. COLLATERAL DOCUMENTS. Borrower has herewith and heretofore executed and
delivered to the Administrative Agent certain Loan Documents, and Borrower
hereby acknowledges and agrees that, notwithstanding the execution and delivery
of this Amendment, the Loan Documents remain in full force and effect and the
rights and remedies of the Administrative Agent thereunder, the obligations of
Borrower thereunder and the liens and security interests created and provided
for thereunder remain in full force and effect and shall not be affected,
impaired or discharged hereby. Nothing herein contained shall in any manner
affect or impair the priority of the liens and security interests created and
provided for in the Loan Documents as to the indebtedness which would be secured
thereby prior to giving effect to this Amendment.

     9. COUNTERPARTS. This Amendment may be executed in two or more
counterparts, each of which shall be deemed an original, and all of which
together shall constitute one and the same instrument. Delivery of an executed
counterpart of this Amendment by facsimile shall be equally as effective as
delivery of a manually executed counterpart of this Amendment. Any party
delivering an executed counterpart of this Amendment by facsimile shall also
deliver a manually executed counterpart of this Amendment, but the failure to
deliver a manually executed counterpart shall not affect the validity,
enforceability and binding effect of this Amendment.

                            [SIGNATURE PAGE FOLLOWS]

                                       5
<Page>

                 (WAIVER AND EXTENSION AMENDMENT SIGNATURE PAGE)

     IN WITNESS WHEREOF, the parties hereto have duly executed this Waiver and
Extension Amendment as of the date first above written.

                                       CCC INFORMATION SERVICES INC.

                                       By:     /s/ Reid E. Simpson
                                           --------------------------
                                       Name:   Reid E. Simpson
                                       Title:  Executive Vice President and
                                               Chief Financial Officer

                                       Address:

                                       CCC Information Services, Inc.
                                       444 Merchandise Mart Plaza
                                       Chicago, IL 60654-1005
                                       Main:    312-229-3200
                                       Fax:     312-527-1194

<Page>

                 (WAIVER AND EXTENSION AMENDMENT SIGNATURE PAGE)

                                       LASALLE BANK NATIONAL ASSOCIATION,
                                       f/k/a LaSalle National Bank,
                                       as Administrative Agent

                                       By:  /s/ Aimee W. Daniels
                                           --------------------------
                                           Aimee Daniels,
                                           Senior Vice President and
                                           Division Head

                                       Address:

                                       LaSalle Bank National Association
                                       135 South LaSalle
                                       Chicago, IL  60603
                                       Attention:  Aimee Daniels
                                                   Senior Vice President and
                                                   Division Head
                                       Main:    312/904-8914
                                       Fax:     312/904-0409

<Page>

                 (WAIVER AND EXTENSION AMENDMENT SIGNATURE PAGE)

                                       LASALLE BANK NATIONAL ASSOCIATION

                                       By:  /s/ Aimee W. Daniels
                                           --------------------------
                                           Aimee Daniels,
                                           Senior Vice President and
                                           Division Head

                                       Address:

                                       LaSalle Bank National Association
                                       135 South LaSalle
                                       Chicago, IL  60603
                                       Attention:  Aimee Daniels
                                                   Senior Vice President and
                                                   Division Head
                                       Main:    312/904-8914
                                       Fax:     312/904-0409

<Page>

                 (WAIVER AND EXTENSION AMENDMENT SIGNATURE PAGE)

                                       FLEET NATIONAL BANK

                                       By:  /s/ Peggy Peckham
                                           -------------------------------
                                           Its:  Senior Vice President
                                                 -------------------------

                                       Address:

                                       Fleet National Bank
                                       Mail Code:        MA DE 100 0 6A
                                       100 Federal Street
                                       Boston, MA 02110
                                       Attention:  Peggy Peckham,
                                                   Senior Vice President
                                       Main:    617-434-6337
                                       Fax:     617-434-4775

<Page>

                 (WAIVER AND EXTENSION AMENDMENT SIGNATURE PAGE)

                                       HARRIS TRUST AND SAVINGS BANK

                                       By:  /s/ Scott F. Geik
                                           -------------------------------
                                           Its:  Managing Director
                                                 -------------------------

                                       Address:

                                       Harris Trust and Savings Bank
                                       111 West Monroe Street
                                       10th Floor West
                                       Chicago, IL 60603
                                       Attention:  Derek Cook
                                       Main:    312-461-3136
                                       Fax:     312-461-2591

<Page>

                 (WAIVER AND EXTENSION AMENDMENT SIGNATURE PAGE)

                                       BANK LEUMI USA

                                       By:  /s/  Jon W. Spoerry
                                           -------------------------------
                                           Its:  First Vice President
                                                 -------------------------

                                       Address:

                                       Bank Leumi USA
                                       100 North LaSalle
                                       Chicago, IL 60602
                                       Attention:  Jon W. Spoerry
                                       Main:    312-781-1806
                                       Fax:     312-781-9469

<Page>

                 (WAIVER AND EXTENSION AMENDMENT SIGNATURE PAGE)

                                       WELLS FARGO BANK WISCONSIN, N.A., f/k/a
                                       Norwest Bank Wisconsin, N.A.

                                       By:  /s/ Linda C. Backhaus
                                           -------------------------------
                                           Its:  V. P.
                                                 -------------------------

                                       Address:

                                       Wells Fargo Bank Wisconsin N.A.
                                       100 East Wisconsin Avenue, Suite 1400
                                       Milwaukee, WI 53202-4101
                                       Attention:  Linda Backhaus
                                       Main:    414-224-7406
                                       Fax:     414-224-7410

<Page>

                            SCHEDULE TO EXHIBIT 10.1

     In addition to the agreement filed as Exhibit 10.1 to this filing, CCC
Information Services Inc. has executed and delivered:

     (1) Second Waiver and Extension Amendment dated as of June 15, 2001 between
CCC Information Services Inc. and LaSalle Bank National Association;

     (2) Third Waiver and Extension Amendment dated as of July 13, 2001 between
CCC Information Services Inc. and LaSalle Bank National Association; and

     (3) Letter Agreement dated July 30, 2001 between CCC Information Services
Inc. and LaSalle Bank National Association.

     These agreements are substantially identical in all material respects to
the agreement filed as Exhibit 10.1 to this filing, except for: (i) the dates of
execution; and (ii) immaterial differences relating to the waiver by LaSalle
Bank National Association of certain information requirements and the extension
of time to complete certain post-closing requirements associated with the Waiver
and Third Amendment to the Amended and Restated Credit Facility Agreement.

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