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                                                                   EXHIBIT 10.6


                                  AMENDMENT TO
                            AGREEMENT TO RESTRUCTURE

                  This AMENDMENT TO AGREEMENT TO RESTRUCTURE (this "Amendment")
is made as of the 18th day of May, 2001 by and among Warren V. Musser ("WVM"),
an individual residing at 710 Sproul Road, Bryn Mawr, PA 19010, Hilary Grinker
Musser ("HGM"), an individual residing at 710 Sproul Road, Bryn Mawr, PA 19010,
Safeguard Scientifics, Inc. ("SFE"), a Pennsylvania corporation with offices at
435 Devon Park Drive, 800 Building, Wayne, PA 19087, and Bonfield Insurance,
Ltd. ("Bonfield," and together with SFE, "Safeguard"), a British Virgin Islands
corporation with offices c/o Safeguard Delaware, Inc., 2711 Centerville Road,
Suite, 400, Wilmington, DE 19808.

                                   BACKGROUND

         A. WVM, HGM, SFE and Bonfield entered into that certain Agreement to
Restructure dated as of April 16, 2001 (the "Agreement"), pursuant to which
certain of the indebtedness of WVM was restructured and certain loans were made
and agreed to be made by Bonfield, subject to certain conditions set forth in
the Agreement.

         B. The parties hereto desire to amend certain of the Phase II
Conditions set forth in the Agreement and certain schedules to the Agreement to
more accurately reflect the transactions described in the Agreement as currently
contemplated.

                  In consideration of the foregoing and the premises and the
agreements hereinafter set forth, and intending to be legally bound hereby, the
parties hereto agree as follows:

                  1. Amendment to Section 4.5 of the Agreement. Section 4.5 of
the Agreement is hereby amended by deleting Section 4.5 in its entirety and
substituting in lieu thereof the following Section 4.5:

                  Section 4.5 Conditions Precedent to Effectiveness of Phase II
                  of this Agreement. The parties to this Agreement hereby agree
                  that the following are the "Phase II Conditions":

                  (a) Documents to be Delivered. The respective parties shall
                  have delivered or caused to be delivered to each other, on or
                  before the Phase II Effective Date, the following agreements,
                  instruments and other documents, each duly executed by the
                  respective parties thereto and each to be effective as of the
                  Phase II Effective Date:

                           (1) Amended and Restated Note. The Amended and
                           Restated Note, in the form attached hereto as Exhibit
                           A-1.

                           (2) New Mortgage. The New Mortgage with respect to
                           the Vassar Street Property together with a
                           non-recourse Guaranty in favor of Bonfield from 304
                           Vassar Street, L.P. and 304 Vassar Street, Inc., each
                           in form and substance satisfactory to Safeguard.

                           (3) Vassar Street Lock Box. A Lock Box Agreement
                           regarding the rents and other amounts payable with
                           respect to the Vassar Street Property among
                           Safeguard, 304 Vassar Street, L.P., MIT, Cambridge
                           Technology Partners (Massachusetts), Inc. ("CTP") and
                           Boston Private Bank, together with an
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                           Intercreditor Agreement between MIT and Bonfield,
                           each in form and substance satisfactory to Safeguard.

                           (4) Third Party Consents. Consents to the
                           transactions contemplated hereby, in form and
                           substance satisfactory to Safeguard, by each of MIT
                           and, if required, CTP with respect to the New
                           Mortgage in favor of Bonfield on the Vassar Street
                           Property.

                           (5) Lake Naomi Option Waiver. A letter to Safeguard
                           waiving HGM's option to purchase the Lake Naomi
                           property, in form and substance satisfactory to
                           Safeguard, or receipt by Bonfield of funds in payment
                           of the exercise price.

                           (6) Phase I Documents. Any document required to have
                           been delivered pursuant to Article III hereof, the
                           delivery of which was waived as of the Phase I
                           Effective Date by the requisite party or parties,
                           being:

                                    (i) Control Agreement. Control Agreement by
                                    and among WVM, Bonfield and Legg Mason with
                                    respect to the WVM Legg Mason Account;

                                    (ii) Stock Powers; Forms 144. Undated Stock
                                    Powers executed in blank for each of the
                                    Securities listed on Schedule 3.2 of the
                                    Agreement (other than Nobel Education
                                    Dynamics, Inc.) together with Forms 144
                                    executed in blank for each applicable
                                    entity;

                                    (iii) Financing Statements. UCC-1 Financing
                                    Statements for WVM in Wisconsin and 304
                                    Vassar Street, Inc. in Delaware.

                                    (iv) SFE Option Documents. A Notice to
                                    Issuer pursuant to Uniform Commercial Code
                                    ("UCC") Section 8106 with respect to the SFE
                                    Option (must be signed by Pledgor and
                                    Transfer Agent), together with the delivery
                                    to Bonfield of the Option.

                                    (v) Lubert Consent. Consent to the
                                    transactions contemplated hereby by Ira
                                    Lubert, with respect to the assignment of
                                    the proceeds of the Lubert Asset Purchase,
                                    together with documentation evidencing the
                                    terms of such assignment in form and
                                    substance satisfactory to Safeguard;

                                    (vi) Additional Documentation Relating to
                                    Owned Assets. Documentation evidencing WVM's
                                    interest in each of the following (including
                                    Notices to Issuers pursuant to
                                    UCC Section 8106 with respect to such
                                    interests): (A) 304 Vassar Street, L.P.; (B)
                                    304 Vassar Street, Inc.; (C) WDK Associates
                                    I, L.P.; (D) WDK Associates II, L.P.; (E)
                                    Wheatley Partners II, L.P.; (F) RRE GIGA
                                    Investors, L.P.; (G) Technology Leaders,
                                    L.P.; (H) Technology Leaders II Management,
                                    L.P.; (I) Eastern Technology Fund, LP; (J)
                                    Plum Holdings, L.P.; (K) NEPA Venture Fund
                                    II, L.P.; (L) The Emerald HomeState PA
                                    Growth Fund- A of The Emerald Funds held in
                                    account number [INTENTIONALLY OMITTED].


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                           (7) Additional Safeguard Release. A Release by SFE
                           and Bonfield, in the form attached hereto as Exhibit
                           E-6.

                           (8) Opinions of Counsel. The additional legal
                           opinions reasonably requested by Safeguard in
                           connection with this Agreement, including without
                           limitation the opinions of DBR, counsel for WVM and
                           the WVM Entities and FROF, each in form and substance
                           satisfactory to Safeguard and its counsel.

                           (9) Legg Mason Documents. If Safeguard elects to pay
                           off in full WVM's Outstanding Obligations to Legg
                           Mason, the Legg Mason Guaranty, marked "cancelled,"
                           and any remaining cash collateral held by Legg Mason
                           shall have been returned to Safeguard.

                  (b) Representations and Warranties. Each of the
                  representations and warranties made by each party hereto shall
                  be true and correct as of the Phase II Effective Date in all
                  material respects.

                  (c) Non-Revocation of Release. At least seven (7) days have
                  passed since the Phase I Effective Date and WVM has not
                  revoked the WVM Release pursuant to the provisions of Section
                  10 thereof.

                  (d) Termination of Brous Account. Evidence satisfactory to
                  Safeguard that WVM's trading account with H.D. Brous and
                  Associates has been terminated.

                  2. Exhibit 1.1. Exhibit 1.1 hereto is hereby incorporated into
the Agreement as Exhibit 1.1 thereto.

                  3. Schedule 1.1. Schedule 1.1 of the Agreement is hereby
amended by deleting Schedule 1.1 in its entirety and substituting in lieu
thereof the Schedule 1.1 attached hereto.

                  4. Schedule 3.2. Schedule 1.1 of the Agreement is hereby
amended by deleting Schedule 1.1 in its entirety and substituting in lieu
thereof the Schedule 1.1 attached hereto.

                  5. Representations and Warranties. Each of the parties hereto
represents and warrants to every other party hereto as follows:

                           a. Representations. The representations and
warranties made in the Agreement by such party are true and correct as of the
date hereof and such party is not aware of and has not taken any actions which
have or would result in any default or Event of Termination under the Agreement
(other than any defaults which are no longer continuing).

                           b. Power and Authority. Such party has the legal
right, power and authority to enter into and perform this Amendment and all
actions necessary or appropriate for the execution and performance of this
Amendment by such party have been taken; and the Amendment and the Agreement, as
amended, each constitute the valid and binding obligations of such party,
enforceable in accordance with their respective terms.

                           c. No Violations of Law or Agreements. The making and
performance of the Amendment by such party will not (i) violate any provisions
of any law or regulation, federal, state or

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local or (ii) result in any breach or violation of, or constitute a default or
require the obtaining of any consent under, any agreement or instrument by which
such party or its property may be bound.

                  6. Conditions to Effectiveness of Amendment. This Amendment
shall be effective upon Safeguard's receipt of this Amendment duly executed by
each of WVM, HGM, SFE and Bonfield and acknowledged by 304 Vassar Street, L.P.

                  7. Affirmations. Each party hereto hereby: (i) affirms all the
provisions of the Agreement, as amended by this Amendment, and (ii) agrees that
the terms and conditions of the Agreement.

                  8. Miscellaneous.

                           a. Governing Law This Amendment shall be governed by
and construed in accordance with the laws of the Commonwealth of Pennsylvania,
without regard to conflicts of law principles.

                           b. Successors and Assigns. All terms and provisions
of this Amendment shall be for the benefit of and be binding upon and
enforceable by the respective successors and assigns of the parties hereto.

                           c. Counterparts. This Amendment may be executed in
any number of counterparts with the same effect as if all the signatures on such
counterparts appeared on one document and each such counterpart shall be deemed
an original.

                           d. No Waiver. Except as expressly set forth herein,
the execution, delivery and performance of this Amendment shall not operate as a
waiver of any right, power or remedy of any party under the Agreement and the
agreements and documents executed in connection therewith or constitute a waiver
of any provision thereof.


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                  IN WITNESS WHEREOF, and intending to be legally bound hereby,
the parties hereto, by their respective duly authorized representatives, have
executed this Amendment to Agreement to Restructure the day and year first above
written.

                                                  SAFEGUARD SCIENTIFICS, INC.


                                                  By: /S/ N. JEFFREY KLAUDER
                                                       Name: N. Jeffrey Klauder

                                                  BONFIELD INSURANCE, LTD.


                                                  By: /S/ N. JEFFREY KLAUDER
                                                      Name: N. Jeffrey Klauder

Witness:


By:_______________________________                /S/ WARREN V. MUSSER
                                                  Warren V. Musser
Witness:


By:_______________________________                /S/ HILARY GRINKER MUSSER
                                                  Hilary Grinker Musser

Acknowledged and Agreed this ____ day

of May, 2001:


304 VASSAR STREET, L.P.,
By:  304 VASSAR STREET, INC, its general partner



By:_______________________________
     Name:
     Title:



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