Document:

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                                                                   Exhibit 10.20

                       SECURED REVOLVING PROMISSORY NOTE
                       ---------------------------------

$210,000.00                                                    January 9, 2001

     FOR VALUE RECEIVED, Lawrence A. Genovesi (the "Maker") promises to pay to
Network Engines, Inc., a Delaware corporation (the "Company"), or order, at its
principal executive offices, the principal sum of Two Hundred Ten Thousand
Dollars ($210,000.00), or such lesser amount as may be advanced from time to
time by the Company to the Maker under this Note, together with interest on the
unpaid principal balance of this Note from time to time outstanding at the rate
of 5.9% per annum, compounded annually, until paid in full.

     All principal and accrued interest outstanding on this Note shall be paid
in full in one payment on January 9, 2002. Interest on this Note shall be
computed on the basis of a year of 365 days for the actual number of days
elapsed.

     Notwithstanding the foregoing, payment of this Note shall be required in
full, together with interest on the unpaid principal balance hereof at the rate
of 5.9% per annum, on the date thirty (30) days following the date of the
Maker's termination of employment with the Company, regardless of whether such
termination is voluntary or involuntary, or with or without cause or reason.

     Payment of this Note is secured by (i) a security interest in all shares of
Common Stock of the Company now owned or hereafter acquired by the Maker and all
options and other rights to acquire shares of Common Stock of the Company now
owned or hereafter acquired by the Maker, pursuant to a pledge agreement of even
date herewith between the Maker and the Company (the "Pledge Agreement") and
(ii) a second mortgage on certain property of the Maker located at 130 Gammons
Road, Cohasset, Massachusetts (the "Second Mortgage").

     The Maker may at any time and from time to time prepay, in whole or in
part, without premium or penalty, any of the principal balance hereof or accrued
interest thereon.

     This Note shall become immediately due and payable without notice or demand
upon the occurrence at any time of any of the following events of default
(individually, "an Event of Default" and collectively, "Events of Default"):

     1.  default in the payment when due of any principal or interest under this
         Note;

     2.  the occurrence of any event of default under the Pledge Agreement, the
         Second Mortgage or the Reimbursement Agreement dated as of the date
         hereof, between the Maker and the Company;

     3.  the institution by or against the Maker of any proceedings under the
         United States Bankruptcy Code or any other federal or state bankruptcy,
         reorganization, receivership, insolvency or other similar law affecting
         the rights of creditors
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         generally or the making by the Maker of a composition or an assignment
         or trust mortgage for the benefit of creditors; or

     4.  the Maker violates the non-competition or confidentiality provisions of
         any employment contract, confidentiality and nondisclosure agreement or
         other agreement between the Maker and the Company.

     Upon the occurrence of an Event of Default, the holder shall have then, or
at any time thereafter, all of the rights and remedies afforded a secured
creditor by the Uniform Commercial Code as from time to time in effect in the
Commonwealth of Massachusetts or afforded by other applicable law.

     Maker agrees to pay on demand all costs of collection, including, but not
limited to, reasonable attorney's fees, incurred by the holder in connection
with any action taken to enforce the terms of this Note.

     No delay or omission on the part of the holder in exercising any right
under this Note or the Pledge Agreement shall operate as a waiver of such right
or of any other right of such holder, nor shall any delay, omission or waiver on
any one occasion be deemed a bar to or waiver of the same or any other right on
any future occasion.  The Maker regardless of the time, order or place of
signing waives presentment, demand, protest and notices of every kind.

     If any amounts under this Note become due and payable on a Saturday or
Sunday or a day on which banks in the State of New York or the Commonwealth of
Massachusetts are authorized by law to remain closed, such amounts shall be paid
on the next succeeding day that such banks shall be open for business.

     Payments of principal and interest shall be made to the holder hereof in
such coin or currency of the United States of America as at the time of payment
shall be legal tender for the payment of public and private debts, at the
offices of Network Engines, Inc., 25 Dan Road, Canton, Massachusetts 02021.

     All rights and obligations hereunder shall be governed by the laws of the
Commonwealth of Massachusetts and this Note is executed as an instrument under
seal.

                              /s/ Lawrence A. Genovesi
                              ------------------------
                              Lawrence A. Genovesi

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                                                                   EXHIBIT 10.21

                                PLEDGE AGREEMENT
                                ----------------

    THIS PLEDGE AGREEMENT (as amended from time to time, this "Agreement"),
dated as of January 9, 2001, is made by Lawrence A. Genovesi ("Pledgor"), in
favor of Network Engines, Inc., a Delaware corporation ("Secured Party").

    In order to induce Secured Party to (i) guarantee the Pledgor's obligations
under that certain Promissory Note dated January 5, 2001, between Pledgor and
Silicon Valley Bank (the "SVB Loan"), (ii) enter into that certain Reimbursement
Agreement dated as of the date hereof between Pledgor and Secured Party (the
"Reimbursement Agreement"), and (iii) make the loan to Pledgor contemplated by
the secured revolving promissory note of even date herewith in the amount of
$210,000 as the same may be amended, replaced, restated or otherwise modified
from time to time (the "Note"), Pledgor hereby agrees as follows:

                            ARTICLE 1. THE PLEDGE.

Section 1.1.  Pledge.  Pledgor hereby pledges to Secured Party, and grants to
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Secured Party a security interest in, the following (the "Pledged Collateral"):

     (a)  All shares of Common Stock of the Secured Party now owned or hereafter
acquired by the Pledgor and all options and other rights to acquire shares of
Common Stock of the Secured Party now owned or hereafter acquired by the Pledgor
(the "Pledged Securities"), and all stock dividends and other property and
proceeds from time to time received, receivable or otherwise distributed in
respect of or in exchange for or upon sale of any or all of the Pledged
Securities; and

     (b)  all additional securities or other consideration from time to time
acquired by Pledgor in substitution for or in respect of the Pledged Securities,
and the certificates representing such additional securities, and all stock
dividends and other property from time to time received, receivable or otherwise
distributed in respect of or in exchange for any or all of such securities.

Section 1.2.  Security for Obligations.  This Agreement secures the payment of
              ------------------------
all obligations of the Pledgor now or hereafter existing under the Reimbursement
Agreement and the Note (all such obligations being the "Obligations").

Section 1.3.  Delivery of Pledged Collateral; Sale of Pledged Collateral.  All
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certificates or instruments representing or evidencing the Pledged Collateral
shall be delivered to Secured Party to be held by Secured Party and shall be in
suitable form for transfer by delivery, or shall be accompanied by duly executed
instruments of transfer or assignment in blank, all in form and substance
satisfactory to Secured Party.  Secured Party shall have the right, at any time
following an Event of Default, in its sole discretion and without notice to
Pledgor, to sell or to transfer to or to register in the name of Secured Party,
or any of Secured Party's nominees any or all of the Pledged Collateral.
Secured Party shall send notice to Pledgor of any such sale, transfer,
registration or exchange of the Pledged Collateral promptly after such event.

Section 1.4.  Continuing Agreement.  This Agreement shall create a continuing
              --------------------
security
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interest in the Pledged Collateral and shall remain in full force and effect
until payment in full of the Obligations. Upon the payment in full of the
Obligations, in cash, Pledgor shall be entitled to the return and re-transfer to
him, upon his request and at his expense, of such of the Pledged Collateral as
shall not have been sold or otherwise applied pursuant to the terms hereof.

Section 1.5.  Security Interest Absolute.  All rights of Secured Party and
              --------------------------
security interests hereunder, and all obligations of Pledgor hereunder, shall be
absolute and unconditional, irrespective of any defenses whatsoever available to
the Pledgor.

                             ARTICLE 2. COVENANTS.

Section 2.1.  Further Assurances.  Pledgor agrees that at any time and from time
              ------------------
to time, at Pledgor's expense, Pledgor will promptly execute and deliver all
further instruments and documents, and take all further action, that may be
necessary or desirable, or that Secured Party may reasonably request, in order
to perfect and protect any security interest granted or purported to be granted
hereby or under the Reimbursement Agreement or the Note or to enable Secured
Party to exercise and enforce Secured Party's rights and remedies hereunder or
under the Reimbursement Agreement or the Note with respect to any Pledged
Collateral.

                           ARTICLE 3. SECURED PARTY.

Section 3.1.  Attorney-in-Fact.  Pledgor hereby irrevocably appoints Secured
              ----------------
Party as Pledgor's attorney-in-fact with full power of substitution and with
full authority in the place and stead of Pledgor and in the name of Pledgor or
otherwise, from time to time in Secured Party's discretion to take any action
and to execute any instrument which Secured Party may reasonably deem necessary
or advisable to accomplish the purposes of this Agreement, including without
limitation to receive, endorse and collect all instruments made payable to
Pledgor representing any dividend, interest payment or other distribution in
respect of the Pledged Collateral or any part thereof and to give full discharge
for the same.

Section 3.2.  Right To Perform.  If Pledgor fails to perform any agreement
              ----------------
contained herein, Secured Party may perform, or cause performance of, such
agreement.

                              ARTICLE 4. DEFAULT.

Section 4.1.  Default; Event of Default.
              -------------------------
    For purposes of this Agreement the terms "Default" and "Event of Default"
shall have the following meanings:

     (a)  "Default" means the occurrence of any event or condition that with the
passage of time or giving of notice, or both, would constitute an Event of
Default.

     (b)  The occurrence of any one or more of the following events or
conditions shall constitute an "Event of Default" under this Agreement:

         (i)  Failure of Pledgor to make any payment of principal or interest
when due

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under the Reimbursement Agreement or the Note;

         (ii) If Pledgor violates the non-competition or confidentiality
provisions of any employment contract, confidentiality and nondisclosure
agreement or other agreement between Pledgor and Secured Party;

         (iii)  Breach of or failure in the due observance or performance of any
covenant, condition or agreement on the part of Pledgor to be observed or
performed pursuant to this Agreement, the Reimbursement Agreement or the Note,
which such breach or failure is not cured within 30 days after written notice
thereof;

         (iv) if Pledgor is not paying his or her debts as they become due,
becomes insolvent, files or has filed against him or her a petition under any
chapter of the United States Bankruptcy Code, 11 U.S.C. (S) 101 et seq.
                                                                -- ---
(or any similar petition under any insolvency law of any jurisdiction), proposes
any liquidation, composition or financial reorganization with his creditors,
makes an assignment or trust mortgage for the benefit of creditors, or if a
receiver, trustee, custodian or similar agent is appointed or takes possession
with respect to any property or business of Pledgor; or

         (v)  if any lien, encumbrance or adverse claim of any nature whatsoever
is asserted with respect to any Pledged Securities.

Section 4.2. Sale of Pledged Securities; Voting Rights; Dividends; Etc.
             ---------------------------------------------------------
        (a)  So long as no Default or Event of Default shall have occurred which
has not been expressly waived:

             (i) Pledgor shall be entitled to sell all or a portion of the
Pledged Securities, provided that, as a condition to the release of the Secured
Party's security interest, all proceeds from any such sale are applied first, to
payment of Obligations outstanding under the Note, and second, if all
Obligations under the Note have been paid in full, to payment of obligations of
Pledgor under the SVB Loan, except in either case to the extent Pledgor
reasonably requests, and the Secured Party has expressly permitted (in writing),
a portion of such proceeds may be used for another designated purpose ;

             (ii) Pledgor shall be entitled to exercise any and all voting and
other consensual rights pertaining to the Pledged Collateral or any part thereof
for any purpose not inconsistent with the terms of this Agreement or the Note;
and

             (iii)  Pledgor shall be entitled to receive and retain any and all
cash dividends paid in respect of the Pledged Collateral.

     (b) Upon the occurrence of a Default or Event of Default and thereafter
unless expressly waived:

             (i) All rights of Pledgor to sell Pledged Securities which Pledgor
would otherwise be entitled to sell under Section 4.2(a)(i), to exercise
the voting and other consensual

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rights which Pledgor would otherwise be entitled to exercise pursuant to Section
4.2.(a)(ii) and to receive the dividends which Pledgor would otherwise be
authorized to receive and retain pursuant to Section 4.2.(a)(iii) shall cease,
and all such rights shall thereupon become vested in Secured Party, who shall
thereupon have the sole right to exercise such voting and other consensual
rights and to receive and hold as Pledged Collateral such dividends; and

             (ii) All proceeds and dividends which are received by Pledgor
contrary to the provisions of Section 4.2.(b)(i) shall be received in trust for
the benefit of Secured Party, shall be segregated from other funds of Pledgor,
and shall be forthwith paid over to Secured Party as Pledged Collateral in the
same form as so received (with any necessary endorsement).

Section 4.3. Remedies Upon Default.  If any Event of Default shall have
              ---------------------
occurred which has not been expressly waived:

     (a) Secured Party may exercise in respect of the Pledged Collateral, in
addition to other rights and remedies provided for herein or otherwise available
to Secured Party, all the rights and remedies of a secured party on default
under the Uniform Commercial Code (the "UCC") in effect in the Commonwealth of
Massachusetts at that time; and

     (b) Any cash held by Secured Party as Pledged Collateral and all cash
proceeds received by Secured Party in respect of any sale of, collection from or
other realization upon all or any part of the Pledged Collateral may, in the
discretion of Secured Party be held by Secured Party as collateral for, and/or
then or at any time thereafter applied in whole or in part by Secured Party
against, all or any part of the Obligations in such order as Secured Party shall
elect. Any surplus of such cash or cash proceeds held by Secured Party and
remaining after payment in full of all the Obligations shall be paid over to
Pledgor or to whomsoever may be lawfully entitled to receive such surplus.

                           ARTICLE 5. MISCELLANEOUS.

Section 5.1.  Amendments, Etc.  No amendment or waiver of any provision of this
              ----------------
Agreement nor consent to any departure by Pledgor herefrom, shall in any event
be effective unless the same shall be in writing and signed by Secured Party,
and then such waiver or consent shall be effective only in the specific instance
and for the specific purpose for which given.  No failure on the part of Secured
Party to exercise, and no delay in exercising, any right hereunder shall operate
as a waiver thereof or preclude any other or further exercise thereof or the
exercise of any other right.  The remedies provided herein are cumulative and
not exclusive of any remedies provided at law.

Section 5.2.  Notices. All notices made or required to be made hereunder shall
              -------
be sent by United States first class or certified or registered mail, with
postage prepaid, or delivered by hand to the Pledgor or the Secured Party, as
the case may be, at the respective address set forth on the signature page
hereto.  Notice by mail shall be deemed to have been made on the date when the
notice is deposited in the mail.

Section 5.3.  Binding Nature.  This Agreement shall (a) be binding upon Pledgor,
              --------------
his heirs, executors, personal representatives and assigns, and (b) inure,
together with the rights and remedies of Secured Party hereunder, to the benefit
of Secured Party's successors, transferees

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and assigns.

Section 5.4.  Governing Law; Terms.  This Agreement shall be governed by and
              --------------------
construed and enforced in accordance with the laws of the Commonwealth of
Massachusetts.  Unless otherwise defined herein, terms defined in Article 9 of
the Uniform Commercial Code in the Commonwealth of Massachusetts are used herein
as therein defined.

Section 5.5.  Headings for Convenience.  The underlined or capitalized captions
              ------------------------
of this Agreement are for convenience of reference only and shall not be deemed
to define or limit the provisions hereof or to affect their construction or
application.

Section 5.6.  Termination.  This Agreement shall terminate on the termination of
              -----------
all obligations of the Secured Party under the Commercial Guarantee and the
Assignment of Deposit Account and the payment in full of the Obligations.

                           [Signature Page to Follow]

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            IN WITNESS WHEREOF, Pledgor and Secured Party have caused this
Agreement to be duly executed and delivered as of the date first above written.

                              PLEDGOR

                              /s/ Lawrence A. Genovesi
                              ---------------------------------------
                              Lawrence A. Genovesi

                              36 Egypt Beach Road
                              Scituate, MA 02066

                              NETWORK ENGINES, INC.

                              By: /s/ Douglas G. Bryant
                                 ------------------------------------
                              Name:  Douglas G. Bryant
                              Title: Vice President of Administration,
                                     Chief Financial Officer,
                                     Treasurer and Secretary

                              25 Dan Road
                              Canton, MA  02021

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