Document:

EX-10.1

ACTEL CORPORATION

JOHN C. EAST TRANSITION AGREEMENT

This Transition Agreement (“Agreement”) is made by and between Actel Corporation (the
“Company”), and John C. East (“Executive”).

WHEREAS, Executive is employed by the Company as its Chief Executive Officer and President and
is a member of the Board of Directors;

WHEREAS, Executive is resigning from his positions as Chief Executive Officer and President
and as a member of the Board of Directors effective upon the start date of the Company’s successor
Chief Executive Officer; and

WHEREAS, Executive has agreed to provide consulting services to the Company following his
resignation and through August 2, 2011;

NOW THEREFORE, in consideration of the mutual promises made herein, the Company and Executive
(collectively referred to as “the Parties”) hereby agree as follows:

1. Termination of Employment. Executive hereby resigns his employment and membership
on the Board of Directors (the “Board”) effective upon the start date of the Company’s successor
Chief Executive Officer, which is expected to be in 2010 (the “Termination Date”). Except as
required by COBRA and similar laws, Executive shall not be eligible to participate in the Company’s
employee and fringe benefit plans once his employment terminates.

2. Employment Period. Executive agrees that, during the period commencing with the
signing of this Agreement by the Parties and ending on the Termination Date (the “Employment
Period”), he will continue to use his full business time and best efforts to fulfill his duties and
responsibilities as Chief Executive Officer and President. Subject to the Company providing
Executive with any severance benefits as required by this Agreement, nothing in this Agreement
changes the “at will” nature of Executive’s employment with the Company prior to the end of the
Employment Period. In the event that Executive’s employment terminates prior to the Termination
Date due to (a) his death, (b) his Disability (as defined herein), (c) a termination without Cause
by the Company, or (d) Executive’s voluntary termination for Good Reason (all as defined herein),
then subject to Executive or his estate Executive or his estate, as applicable, signing a release
of claims in favor of the Company in substantially the form attached hereto as Exhibit A (the
“Release”) and such release becoming effective within thirty days of the Termination Date,
Executive or his estate shall continue to receive payments, equity acceleration and the extension
of the post-termination exercise period of any then outstanding options the same as if Executive
had remained as a consultant through the end of the Consulting Period (as defined below). All
compensation and vesting otherwise due in such thirty-day period shall instead become due and
payable in arrears on the thirty-first day following the Termination Date.

For the purposes of this Agreement, “Cause” is defined as (i) any act of personal dishonesty
taken by the Executive in connection with his responsibilities as an employee and intended to
result in personal enrichment of the Executive, (ii) Executive’s commission of a felony, (iii) a
willful act by the Executive which constitutes gross misconduct and which is injurious to the
Company, and (iv) following delivery to the Executive of a written demand for performance from the
Company which describes the basis for the Company’s belief that the Executive has not substantially
performed his duties, continued violations by the Executive of the Executive’s obligations to the
Company which are demonstrably willful and deliberate on the Employee’s part.

For the purposes of this Agreement, “Disability” is defined as either of the following: (i)
Executive being unable to engage in any substantial gainful activity by reason of any medically
determinable physical or mental impairment that can be expected to last for a continuous period of
not less than twelve (12) months; or (ii) Executive has been determined to be totally disabled by
the Social Security Administration.

For the purposes of this Agreement, “Good Reason” shall mean (i) without the Executive’s
express written or e-mailed consent, a significant reduction in the Executive’s duties, authority
or responsibilities, relative to the Executive’s duties, authority or responsibilities as in effect
immediately prior to such reduction; (ii)  a reduction by the Company in the base salary of the
Executive as in effect immediately prior to such reduction (except pursuant to a reduction
generally applicable to senior executives of the Company that does not exceed, individually or
cumulatively, a 10% reduction from the initial base salary);; (iii) a material reduction by the
Company in the kind or level of employee benefits, including bonuses, to which the Executive was
entitled immediately prior to such reduction with the result that the Executive’s overall benefits
package is significantly reduced (other than a reduction generally applicable to senior executives
of the Company); (iv) the relocation of the Executive to a facility or a location more than thirty
(30) miles from the Executive’s then present location, without the Executive’s express written or
e-mailed consent; or (v) the failure of the Company to obtain the assumption of this agreement by
any successors contemplated in Section 14 below; In addition, upon any such voluntary termination
for Good Reason the Executive must provide notice to the Company of the existence of the one or
more of the above conditions within 90 days of its initial existence and the Company must be
provided at least 30 days to remedy the condition.

3. Consulting Duties. In the period commencing with the Termination Date and
terminating on August 2, 2011 (the “Consulting Period”), Executive agrees to provide ongoing
consulting advice, at mutually agreed upon and convenient times, as needed by the Company.
Executive’s consulting duties shall include: (i) assisting the Company’s new Chief Executive
Officer (ii) such other duties as are reasonably requested of Executive by the Company’s new Chief
Executive Officer or the Company’s Board.

4. Compensation During the Employment Period. During the Employment Period, Executive
shall continue to be compensated at his current base salary of $422,000 per year (the “Base
Salary”). At the end of the Employment Period, all of Executive’s stock options with an exercise
price in excess of $16 per share shall terminate and become without further force and effect (the
“Cancelled Options”).

5. Compensation During the Consulting Period. All compensation below shall be
conditioned upon the Executive signing the Release and such Release becoming effective within
thirty days of the Termination Date. All compensation and vesting otherwise due in such thirty-day
period shall instead become due and payable in arrears on the thirty-first day following the
Termination Date.

(a) Cash Compensation. During the Consulting Period, Executive shall be paid a
monthly consulting fee at the same monthly rate as his Base Salary. Moreover, if Executive does
not otherwise receive a 2010 annual bonus, Executive shall be eligible to receive a 2010 annual
bonus equal to the greater of (a) the annual bonus Executive would have received had Executive
remained employed as Chief Executive Officer and President through the date upon which the 2010
annual bonus is paid, subject to attaining the performance milestones established by the
Compensation Committee of the Board under the Company’s Key Employee Incentive Plan, or (b) 13.6%
of his Base Salary. Executive shall be eligible to receive, at the end of the Consulting Period, a
pro-rated annual bonus for 2011 equal to 58 % of his 2010 annual bonus payout; e.g., if Executive’s
2010 annual bonus payout is $100,000, Executive’s 2011 annual pro-rated bonus payout will equal
$58,000.

(b) Equity Compensation. During the Consulting Period, all of Executive’s stock
options (other than the Cancelled Options) and restricted stock units shall continue to vest on the
same schedule as if Executive had remain employed with the Company. At the end of the Consulting
Period, the remaining unvested stock options and restricted stock units shall have their vesting
accelerated 100%. At the end of the Consulting Period, all of Executive’s then outstanding stock
options shall have their post-termination exercise period adjusted to the earlier of (i) the
original maximum term of the stock option, or (ii) the two-year anniversary of the Termination
Date.

(c) Premature Termination of Consulting Period. In the event that during but prior to
the end of the Consulting Period Executive materially breaches his obligations under this
Agreement, the Consulting Period shall terminate prior to the end of the Consulting Period, and
Executive shall not receive further cash payments, equity vesting, or the extension of the
post-termination exercise period of the then outstanding stock options. In the event of
Executive’s death or Disability prior to the end of the Consulting Period, Executive (or his
estate) shall continue to receive payments, equity acceleration and the extension of the
post-termination exercise period of any then outstanding options the same as if Executive had
remained as a consultant through the end of the Consulting Period.

6. Termination of Management Continuity Agreement. Executive’s Management Continuity
Agreement is hereby terminated and without further force and effect.

7. Conditional Nature of Consulting Payments and Equity Compensation Benefits.

(a) Noncompete. Executive acknowledges that the nature of the Company’s business is
such that if Executive were to become employed by, or substantially involved in, the business of a
competitor of the Company during the Consulting Period, it would be very difficult for Executive
not to rely on or use the Company’s trade secrets and confidential information. Thus, to avoid the
inevitable disclosure of the Company’s trade secrets and confidential information, Executive agrees
and acknowledges that Executive’s right to receive the consulting payments and equity compensation
benefits set forth in Section 5 (to the extent Executive is otherwise entitled to such payments)
shall be conditioned upon Executive not directly or indirectly engaging in (whether as an employee,
consultant, agent, proprietor, principal, partner, stockholder, corporate officer, director or
otherwise), nor having any ownership interested in or participating in the financing, operation,
management or control of, any person, firm, corporation or business in competition with the Company
during the Consulting Period and for a period of eighteen (18) months afterwards. Notwithstanding
the foregoing, Executive may, without violating this Section 7, own, as a passive investment,
shares of capital stock of a publicly-held corporation that engages in competition with the Company
where the number of shares of such corporation’s capital stock that are owned by Executive
represent less than two percent of the total number of shares of such corporation’s capital stock
outstanding.

(b) Non-Solicitation. During the Consulting Period and for a period of eighteen (18)
months afterwards, Executive agrees and acknowledges that right to receive or retain the consulting
payments and equity compensation benefits set forth in Section 5 (to the extent Executive is
otherwise entitled to such payments) shall be conditioned upon Executive not either directly or
indirectly soliciting, inducing, recruiting or encouraging an employee to leave his or her
employment with the Company. Notwithstanding the foregoing, the Company agrees that Executive may
provide references upon the request of departing Company employees without violating this Section
7(b).

(c) Understanding of Covenants. Executive represents that he (i) is familiar with the
foregoing covenants not to compete and not to solicit, and (ii) is fully aware of his obligations
hereunder, including, without limitation, the reasonableness of the length of time, scope and
geographic coverage of these covenants.

(d) Remedy for Breach. Upon any breach of this section by Executive, all consulting
payments and benefits pursuant to this Agreement shall immediately cease and any stock options and
restricted stock units then held by Executive shall immediately terminate and be without further
force and effect, and that shall be the sole remedy available to the Company for such breach,
except that the Company may pursue injunctive relief for breach of the non-solicit and in the event
of such breach shall be entitled to recovery of consulting payments and benefits (including related
equity gains) previously provided to Executive.

8. Internal Revenue Code Section 409A.

(a) Notwithstanding any provision to the contrary herein, no Deferred Compensation Separation
Payments (as defined below) that becomes payable under this Agreement by reason of Executive’s
termination of employment with the Company (or any successor entity thereto) will be made unless
such termination of employment constitutes a “separation from service” within the meaning of
Section 409A of the Internal Revenue Code (the “Code”), and any final regulations and Internal
Revenue Service guidance promulgated thereunder (“Section 409A”). Further, if Executive is a
“specified employee” of the Company (or any successor entity thereto) within the meaning of Section
409A on the date of Executive’s termination (other than a termination due to death), then the
severance payable to Executive, if any, under this Agreement, when considered together with any
other severance payments or separation benefits that are considered deferred compensation under
Section 409A (together the “Deferred Compensation Separation Payments”) that are payable within the
first six (6) months following Executive’s termination of employment, shall be delayed until the
first payroll date that occurs on or after the date that is six (6) months and one (1) day after
the date of the termination, when they shall be paid in full. Notwithstanding anything herein to
the contrary, if Executive dies following his termination but prior to the six (6) month
anniversary of his termination, then any payments delayed in accordance with this paragraph will be
payable in a lump sum as soon as administratively practicable after the date of Executive’s death.
Each payment and benefit payable under this Agreement is intended to constitute a separate payment
for purposes of Section 1.409A-2(b)(2) of the Treasury Regulations.

(b) Any amounts paid under this Agreement that satisfy the requirements of the “short-term
deferral” rule set forth in Section 1.409A-1(b)(4) of the Treasury Regulations will not constitute
Deferred Compensation Separation Payments for purposes of clause (ii) above.

(c) The foregoing provisions are intended to comply with the requirements of Section 409A so
that none of the severance payments and benefits to be provided hereunder will be subject to the
additional tax imposed under Section 409A, and any ambiguities herein will be interpreted to so
comply. The Company and Executive agree to work together in good faith to consider amendments to
this Agreement and to take such reasonable actions which are necessary, appropriate or desirable to
avoid imposition of any additional tax or income recognition prior to actual payment to Executive
under Section 409A.

9. Costs. Except as noted in the following sentence, the Parties shall each bear
their own costs, expert fees, attorneys’ fees and other fees incurred in connection with this
Agreement. The Company agrees to pay or reimburse Executive’s reasonable legal fees in connection
with entering into this Agreement up to a maximum of $5,000.

10. No Representations. Executive represents that he has had the opportunity to
consult with an attorney, and has carefully read and understands the scope and effect of the
provisions of this Agreement. Neither party has relied upon any representations or statements made
by the other party hereto which are not specifically set forth in this Agreement.

11. Severability. In the event that any provision hereof becomes or is declared by a
court of competent jurisdiction to be illegal, unenforceable or void, this Agreement shall continue
in full force and effect without said provision.

12. Arbitration.

(a) General. The Parties agree that any and all controversies, claims, or disputes
with anyone (including the Company and any employee, officer, director, shareholder or benefit plan
of the Company in their capacity as such or otherwise) arising out of, relating to, or resulting
from this Agreement or the termination of Executive’s service with the Company, including any
breach of this Agreement, shall be subject to binding arbitration under the Arbitration Rules set
forth in California Code of Civil Procedure Section 1280 through 1294.2, including Section 1283.05
(the “Rules”) and pursuant to California law. Disputes which Executive agrees to arbitrate,
and thereby agrees to waive any right to a trial by jury, include any statutory claims under state
or federal law, including, but not limited to, claims under Title VII of the Civil Rights Act of
1964, the Americans with Disabilities Act of 1990, the Age Discrimination in Employment Act of
1967, the Older Workers Benefit Protection Act, the California Fair Employment and Housing Act, the
California Labor Code, claims of harassment, discrimination or wrongful termination and any
statutory claims. Executive further understands that this Agreement to arbitrate also applies to
any disputes that the Company may have with Executive.

(b) Procedure. Executive agrees that any arbitration will be administered by the
American Arbitration Association (“AAA”) and that a neutral arbitrator will be selected in
a manner consistent with its National Rules for the Resolution of Employment Disputes. The
arbitration shall be held in Santa Clara County, California. The arbitration proceedings will
allow for discovery according to the rules set forth in the National Rules for the Resolution of
Employment Disputes or California Code of Civil Procedure. Executive agrees that the arbitrator
shall have the power to decide any motions brought by any party to the arbitration, including
motions for summary judgment and/or adjudication and motions to dismiss and demurrers, prior to any
arbitration hearing. Executive agrees that the arbitrator shall issue a written decision on the
merits. Executive also agrees that the arbitrator shall have the power to award any remedies,
including attorneys’ fees and costs, available under applicable law. Executive understands the
Company will pay for any administrative or hearing fees charged by the arbitrator or AAA except
that Executive shall pay the first $200.00 of any filing fees associated with any arbitration
Executive initiates. Executive agrees that the arbitrator shall administer and conduct any
arbitration in a manner consistent with the Rules and that to the extent that the AAA’s National
Rules for the Resolution of Employment Disputes conflict with the Rules, the Rules shall take
precedence.

(c) Remedy. Except as provided by the Rules, arbitration shall be the sole, exclusive
and final remedy for any dispute between Executive and the Company. Accordingly, except as provided
for by the Rules, neither Executive nor the Company will be permitted to pursue court action
regarding claims that are subject to arbitration. Notwithstanding, the arbitrator will not have the
authority to disregard or refuse to enforce any lawful Company policy, and the arbitrator shall not
order or require the Company to adopt a policy not otherwise required by law which the Company has
not adopted.

13. Entire Agreement. This Agreement, along with the Proprietary Information
Agreement previously entered into by and between the Company and Executive, the Indemnification
Agreement by and between the Company and Executive, and the agreements relating to Executive’s
Equity Compensation (as modified hereby) represent the entire agreement and understanding between
the Company and Executive concerning Executive’s transition, termination and consulting
arrangements with the Company.

14. Successors and Binding Agreement. The Company will require any successor (whether
direct or indirect, by purchase, merger, consolidation, reorganization or otherwise, including,
without limitation, any successor due to a Change in Control, as defined herein) to the business or
all or substantially all of the assets of the Company, expressly to assume and agree to perform
this Agreement in the same manner and to the same extent the Company would be required to perform
if no such succession had taken place. This Agreement will be binding upon and inure to the
benefit of the Company and any successor to the Company, including, without limitation, any persons
directly or indirectly acquiring the business or all or substantially all of the assets of the
Company in a transaction constituting a Change in Control (and such successor shall thereafter be
deemed the “Company” for the purpose of this Agreement), but will not otherwise be assignable,
transferable or delegable by the Company. This Agreement will inure to the benefit of and be
enforceable by Executive’s personal or legal representatives, executors, administrators,
successors, heirs, distributees and legatees.

For the purposes of this Agreement “Change of Control” is defined as the occurrence of any of
the following events: (i) any merger or consolidation that results in the voting securities of the
Company, outstanding immediately prior thereto representing (either by remaining outstanding or by
being converted into voting securities of the surviving or acquiring entity) less than 50% of the
combined voting power of the voting securities of the Company, or such surviving or acquiring
entity outstanding immediately after such merger or consolidation; (ii) any sale of all or
substantially all of the assets of the Company,; (iii) the complete liquidation or dissolution of
the Company; or (iv) the acquisition of “beneficial ownership” (as defined in Rule 13d-3 under the
Exchange Act) of securities of the Company, representing 50% or more of the combined voting power
of the Company‘s then outstanding securities (other than through a merger or consolidation or an
acquisition of securities directly from the Company) by any “person,” as such term is used in
Sections 13(d) and 14(d) of the Exchange Act, other than the Company, any trustee or other
fiduciary holding securities under an employee benefit plan of the Company.

15. No Oral Modification. This Agreement may only be amended in writing signed by
Executive and the Chairman of the Compensation Committee of the Company.

16. Governing Law. This Agreement shall be governed by the internal substantive laws,
but not the choice of law rules, of the State of California.

17. Effective Date. This Agreement is effective immediately after it has been signed
by both Parties.

18. Counterparts. This Agreement may be executed in counterparts, and each
counterpart shall have the same force and effect as an original and shall constitute an effective,
binding agreement on the part of each of the undersigned.

19. Voluntary Execution of Agreement. This Agreement is executed voluntarily and
without any duress or undue influence on the part or behalf of the Parties, with the full intent of
releasing all claims. The Parties acknowledge that:

(a) They have read this Agreement;

(b) They have been represented in the preparation, negotiation, and execution of this
Agreement by legal counsel of their own choice or that they have voluntarily declined to seek such
counsel;

(c) They understand the terms and consequences of this Agreement and of the releases it
contains;

(d) They are fully aware of the legal and binding effect of this Agreement.

1

IN WITNESS WHEREOF, the Parties have executed this Agreement on the respective dates set forth
below.

	 	 	 
	Dated: February 2, 2010
	 	/s/ James Fieberger

	 	 	 

	 	 	James Fieberger

	Dated: February 2, 2010
	 	/s/ John East

	 	 	 

	 	 	John C. East

EXHIBIT A

ACTEL CORPORATION/JOHN C. EAST

RELEASE OF CLAIMS

This Release of Claims (“Agreement”) is made by and between Actel Corporation (the “Company”),
and John C. East (“Employee”).

WHEREAS, Employee has agreed to enter into a release of claims in favor of the Company upon
certain events specified in the Transition Agreement by and between Company and Employee (the
“Agreement”).

NOW THEREFORE, in consideration of the mutual promises made herein, the Parties hereby agree
as follows:

1. Termination. Employee’s employment from the Company terminated on      
(the “Termination Date”).

2. Confidential Information. Employee shall continue to maintain the confidentiality
of all confidential and proprietary information of the Company and shall continue to comply with
the terms and conditions of the Proprietary Information Agreement by and between Employee and the
Company. Employee shall return all the Company property and confidential and proprietary
information in his possession to the Company on the Effective Date of this Agreement.

3. Payment of Salary. Employee acknowledges and represents that the Company has paid
all salary, wages, bonuses, accrued vacation, commissions and any and all other benefits due to
Employee.

4. Release of Claims. Employee agrees that the foregoing consideration represents
settlement in full of all outstanding obligations owed to Employee by the Company. Employee, on
behalf of himself, and his respective heirs, family members, executors and assigns, hereby fully
and forever releases the Company and its past, present and future officers, agents, directors,
employees, investors, shareholders, administrators, affiliates, divisions, subsidiaries, parents,
predecessor and successor corporations, and assigns, from, and agrees not to sue or otherwise
institute or cause to be instituted any legal or administrative proceedings concerning any claim,
duty, obligation or cause of action relating to any matters of any kind, whether presently known or
unknown, suspected or unsuspected, that he may possess arising from any omissions, acts or facts
that have occurred up until and including the Effective Date of this Agreement including, without
limitation,

(a) any and all claims relating to or arising from Employee’s employment relationship with the
Company and the termination of that relationship;

(b) any and all claims relating to, or arising from, Employee’s right to purchase, or actual
purchase of shares of stock of the Company, including, without limitation, any claims for fraud,
misrepresentation, breach of fiduciary duty, breach of duty under applicable state corporate law,
and securities fraud under any state or federal law;

(c) any and all claims for wrongful discharge of employment; termination in violation of
public policy; discrimination; breach of contract, both express and implied; breach of a covenant
of good faith and fair dealing, both express and implied; promissory estoppel; negligent or
intentional infliction of emotional distress; negligent or intentional misrepresentation; negligent
or intentional interference with contract or prospective economic advantage; unfair business
practices; defamation; libel; slander; negligence; personal injury; assault; battery; invasion of
privacy; false imprisonment; and conversion;

(d) any and all claims for violation of any federal, state or municipal statute, including,
but not limited to, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the
Age Discrimination in Employment Act of 1967, the Americans with Disabilities Act of 1990, the Fair
Labor Standards Act, the Employee Retirement Income Security Act of 1974, The Worker Adjustment and
Retraining Notification Act, the California Fair Employment and Housing Act, and Labor Code section
201, et seq. and section 970, et seq. and all amendments to each such Act as well as the
regulations issued thereunder;

(e) any and all claims for violation of the federal, or any state, constitution;

(f) any and all claims arising out of any other laws and regulations relating to employment or
employment discrimination; and

(g) any and all claims for attorneys’ fees and costs.

Employee agrees that the release set forth in this section shall be and remain in effect in all
respects as a complete general release as to the matters released. This release does not extend to
any severance obligations due Employee under the Agreement. Nothing in this Agreement waives
Employee’s rights to indemnification or any payments under any fiduciary insurance policy, if any,
provided by any act or agreement of the Company, state or federal law or policy of insurance.

5. Acknowledgment of Waiver of Claims under ADEA. Employee acknowledges that he is
waiving and releasing any rights he may have under the Age Discrimination in Employment Act of 1967
(“ADEA”) and that this waiver and release is knowing and voluntary. Employee and the Company agree
that this waiver and release does not apply to any rights or claims that may arise under the ADEA
after the Effective Date of this Agreement. Employee acknowledges that the consideration given for
this waiver and release Agreement is in addition to anything of value to which Employee was already
entitled. Employee further acknowledges that he has been advised by this writing that (a) he
should consult with an attorney prior to executing this Agreement; (b) he has at least
twenty-one (21) days within which to consider this Agreement; (c) he has seven (7) days following
the execution of this Agreement by the parties to revoke the Agreement; (d) this Agreement shall
not be effective until the revocation period has expired; and (e) nothing in this Agreement
prevents or precludes Employee from challenging or seeking a determination in good faith of the
validity of this waiver under the ADEA, nor does it impose any condition precedent, penalties or
costs for doing so, unless specifically authorized by federal law. Any revocation should be in
writing and delivered to the Vice-President of Human Resources at the Company by close of business
on the seventh day from the date that Employee signs this Agreement.

6. Civil Code Section 1542. Employee represents that he is not aware of any claims
against the Company other than the claims that are released by this Agreement. Employee
acknowledges that he has been advised by legal counsel and is familiar with the provisions of
California Civil Code 1542, below, which provides as follows:

A GENERAL RELEASE DOES NOT EXTEND TO CLAIMS WHICH THE CREDITOR DOES NOT
KNOW OR SUSPECT TO EXIST IN HIS FAVOR AT THE TIME OF EXECUTING THE
RELEASE, WHICH IF KNOWN BY HIM MUST HAVE MATERIALLY AFFECTED HIS
SETTLEMENT WITH THE DEBTOR.

Employee, being aware of said code section, agrees to expressly waive any rights he may have
thereunder, as well as under any statute or common law principles of similar effect.

7. No Pending or Future Lawsuits. Employee represents that he has no lawsuits,
claims, or actions pending in his name, or on behalf of any other person or entity, against the
Company or any other person or entity referred to herein. Employee also represents that he does
not intend to bring any claims on his own behalf or on behalf of any other person or entity against
the Company or any other person or entity referred to herein.

8. Application for Employment. Employee understands and agrees that, as a condition
of this Agreement, he shall not be entitled to any employment with the Company, its subsidiaries,
or any successor, and he hereby waives any right, or alleged right, of employment or re-employment
with the Company.

9. No Cooperation. Employee agrees that he will not counsel or assist any attorneys
or their clients in the presentation or prosecution of any disputes, differences, grievances,
claims, charges, or complaints by any third party against the Company and/or any officer, director,
employee, agent, representative, shareholder or attorney of the Company, unless under a subpoena or
other court order to do so.

10. No Admission of Liability. Employee understands and acknowledges that this
Agreement constitutes a compromise and settlement of disputed claims. No action taken by the
Company, either previously or in connection with this Agreement shall be deemed or construed to be
(a) an admission of the truth or falsity of any claims heretofore made or (b) an acknowledgment or
admission by the Company of any fault or liability whatsoever to the Employee or to any third
party.

11. Costs. The Parties shall each bear their own costs, expert fees, attorneys’ fees
and other fees incurred in connection with this Agreement.

12. Arbitration. The Parties agree that any and all disputes arising out of the terms
of this Agreement, their interpretation, and any of the matters herein released, including any
potential claims of harassment, discrimination or wrongful termination shall be subject to binding
arbitration, to the extent permitted by law, as specified in the Agreement.

13. Authority. Employee represents and warrants that he has the capacity to act on
his own behalf and on behalf of all who might claim through him to bind them to the terms and
conditions of this Agreement.

14. No Representations. Employee represents that he has had the opportunity to
consult with an attorney, and has carefully read and understands the scope and effect of the
provisions of this Agreement. Neither party has relied upon any representations or statements made
by the other party hereto which are not specifically set forth in this Agreement.

15. Severability. In the event that any provision hereof becomes or is declared by a
court of competent jurisdiction to be illegal, unenforceable or void, this Agreement shall continue
in full force and effect without said provision.

16. Entire Agreement. This Agreement, along with the Proprietary Information
Agreement and Employee’s written equity compensation agreements with the Company, represents the
entire agreement and understanding between the Company and Employee concerning Employee’s
separation from the Company.

17. No Oral Modification. This Agreement may only be amended in writing signed by
Employee and the CEO of the Company.

18. Governing Law. This Agreement shall be governed by the internal substantive laws,
but not the choice of law rules, of the State of California.

19. Effective Date. This Agreement is effective eight (8) days after it has been
signed by both Parties.

20. Counterparts. This Agreement may be executed in counterparts, and each
counterpart shall have the same force and effect as an original and shall constitute an effective,
binding agreement on the part of each of the undersigned.

21. Voluntary Execution of Agreement. This Agreement is executed voluntarily and
without any duress or undue influence on the part or behalf of the Parties hereto, with the full
intent of releasing all claims. The Parties acknowledge that:

(a) They have read this Agreement;

(b) They have been represented in the preparation, negotiation, and execution of this
Agreement by legal counsel of their own choice or that they have voluntarily declined to seek such
counsel;

(c) They understand the terms and consequences of this Agreement and of the releases it
contains;

(d) They are fully aware of the legal and binding effect of this Agreement.

IN WITNESS WHEREOF, the Parties have executed this Agreement on the respective dates set forth
below.

Actel Corporation

	 	 	 
	Dated: , 20      

	 	By
	 

	 	 
	
 
	 	John C. East, an individual
	Dated: , 20     

	 	

	 

	 	 

2EX-10.91

SEPARATION AGREEMENT AND GENERAL RELEASE

This Separation Agreement and General Release (“Agreement”) is entered into by and between
James C. Fontana (“Employee”) and Alion Science and Technology Corporation (“Alion” or the
“Company”) as of the date on which Employee executes this Agreement (the “Execution Date”) and
shall become effective as of the date on which the revocation period set out in Paragraph 4(c)(ii)
expires (“Effective Date”).

In consideration of the mutual covenants, agreements and representations contained herein, the
adequacy of which is hereby acknowledged, the parties hereto expressly and intentionally bind
themselves as follows:

1. SEPARATION OF EMPLOYEE

(a) Unless terminated earlier in accordance with this Agreement, the parties agree that
Employee’s last day of employment with Alion will be February 1, 2010 (“Separation Date”). The
time between the Execution Date and the Separation Date is referred to herein as the “Retention
Period.”

(b) Except as otherwise provided in this Agreement, effective as of the Separation Date,
Employee shall not be eligible for further pay or benefits, including without limitation any
benefits under any severance pay plan applicable to him as an employee of Alion.

(c) During the Retention Period, Employee (i) shall devote his full business time to the
Company; (ii) shall perform his regular duties, or such other duties as may be assigned to him from
time to time to the best of his ability and with the utmost good faith; and (iii) shall take all
reasonable steps to provide for a successful transition of his duties. During the Retention
Period, Employee’s duties may be changed, decreased or eliminated at the discretion of the Company
and upon written notification to Employee, provided that the Company fulfills its obligation to pay
Employee his salary during the Retention Period. Specifically, during the Retention Period,
Employee shall not have the authority to bind the Company and shall participate in Board
proceedings only at the direction of the CEO.

(d) During the Retention Period, should Employee resign voluntarily prior to the Separation
Date, this Agreement shall remain in full force and effect except that (i) the resignation date
shall be substituted for the “Separation Date” stated above for all subsequent purposes and (ii)
Employee shall forfeit the 2009 Bonus (as defined below) or, if already paid, the Company shall be
entitled to recoup the 2009 Bonus of $90,000.00 previously paid to Employee by reducing any amounts
remaining due him by $90,000.000. During the Retention Period, the Employee remains subject to
termination for Cause, as defined in his Employment Agreement dated June 28, 2007, as amended on
February 18, 2008 (the “Employment Agreement”). If Employee is terminated for Cause during the
Retention Period, this Agreement shall become null and void, any payments already made pursuant to
this Agreement shall be returned, and the rights of the parties shall thereafter be governed by the
Employment Agreement or other any other applicable agreements as they existed immediately prior to
the Execution Date of this Agreement.

(e) By signing this Agreement, Employee expressly resigns, as of the Execution Date, from his
position as the Secretary of the Board and from any other offices, directorships, or other
positions held by him with the Company or any related entities, except that Employee is not
resigning from his position as General Counsel, which shall be terminated pursuant to this
Agreement.

2. PAYMENTS BY ALION

(a) Pursuant to Alion’s standard separation policies, Employee will be paid all salary earned
through and including the Separation Date and any accrued but unused Paid Time Off (“PTO”) as of
the Separation Date. Such payments shall be made in accordance with Alion’s regular payroll
schedule. In addition, Employee shall be paid amounts currently held on his behalf in the Alion
Non-Qualified Deferred Compensation Plan in accordance with the terms of such plan.

(b) Provided that Employee (i) signs and returns this Agreement and does not revoke the ADEA
waiver as set out in Paragraph 4(c)(ii) as set out below (or, if so revoked, the Company elects not
to void the Agreement) and (ii) signs and returns the Waiver and General Release attached hereto as
Exhibit A no earlier than the Separation Date and no later than the 22nd day following
the Separation Date and does not revoke the ADEA waiver as set out therein (or, if so revoked, the
Company elects not to void the Agreement) then, subject to the following paragraph and Paragraph
2(g) below, Alion shall make the following payments to Employee (with subsections (i), (ii), and
(iii) below referred to as “Severance Payments” and (iv) below referred to as the “LTIP Awards”):

	 	(i)	 	The amount of $280,000.00 representing one (1) year of
Employee’s Base Salary in effect as of the Separation Date;

	 	(ii)	 	The amount of $90,000.00 representing the amount equal to his
last paid annual bonus (the “Last Paid Bonus”);

	 	(iii)	 	The amount of $90,000.00 representing an annual bonus for 2009
(the “2009 Bonus”); and

	 	(iv)	 	The amount of $226,416.00 representing the value of the Long
Term Incentive Program (the “LTIP Awards”) pursuant to the LTIP Award
Agreements dated December 17, 2008 (the “LTIP Award Agreements”).

(c) The Severance Payments and LTIP Awards shall be made to Employee as follows:

	 	(i)	 	$90,000.00 representing the 2009 Bonus, less applicable
withholdings, to be paid on the later of: (x) the day following the expiration
of the Revocation Period set out in Paragraph 4(c)(ii) below or (y) the date on
which payments of 2009 annual bonuses are made to other executives of the
Company;

	 	(ii)	 	$200,000.00, less applicable withholdings, to be paid on the
later of (x) May 1, 2010 and (y) the date three (3) months after the
Separation Date (such payment date, the “First Installment Date”);

	 	(iii)	 	$200,000.00, less applicable withholdings, to be paid on the
later of (x) August 1, 2010 and (y) the date six (6) months after the
Separation Date (such payment date, the “Second Installment Date”); and

	 	(iv)	 	$196,416.00, less applicable withholdings, to be paid on the
later of (x) February 1, 2011 and (y) the date one (1) year after the
Separation Date (such payment date, the “Third Installment Date”).

Notwithstanding the foregoing, the Company’s obligation to pay the Severance Payments and LTIP
Awards, including any outstanding Installments, shall cease immediately and such payments will be
forfeited if Employee violates any material obligation owed to Alion under this Agreement, the
Employment Agreement or the Intellectual Property Agreement (collectively the “Employee
Agreements”). Further, the parties agree that, should the Compensation Committee reasonably
determine that the making of a payment required under this Agreement on the date specified in the
Agreement would jeopardize the ability of the Company to continue as a going concern, the payment
will be delayed (without imputation of earnings, interest, or other gains or losses) until the
first date of the next quarter in which making such a payment would not jeopardize the Company’s
status as a going concern. In addition, the LTIP Awards remain subject to Section 4.7 of the
Company’s Long Term Incentive Plan.

(d) Except as provided in this Agreement or as otherwise required under the terms of an
applicable employee benefit plan, no further payments shall be made to Employee.

(e) The Company shall withhold such tax, payroll and other amounts from payments under this
Agreement as Employee authorizes or the Company reasonably believes to be required by law. Employee
shall be solely responsible for payment of his own taxes, including any taxes arising under
Internal Revenue Code Section 409A. The Company has not provided and will not provide tax advice
to Employee.

3. EMPLOYMENT BENEFITS

(a) Employee agrees and acknowledges that his participation in any 401(k) Plan, short-term and
long-term Disability Plans, or any other benefit plans made available to him as an Alion employee,
and his participation in and entitlement to any and all other benefits in which he is currently
enrolled, but which are not specifically addressed in this Agreement, will terminate on the
Separation Date, except as otherwise provided in this Agreement.

(b) Employee’s participation in the Alion medical, dental, vision and other insurance plans
shall cease as of the Separation Date unless, to the extent that Employee is eligible, he timely
elects to receive medical and/or dental benefits pursuant to the provisions of the Consolidated
Omnibus Budget Reconciliation Act (“COBRA”) for himself and/or any qualifying beneficiaries.
Notification of Employees rights under COBRA will be provided to Employee under separate cover.

(c) Provided that Employee (i) signs and returns this Agreement and does not revoke the ADEA
waiver as set out in Paragraph 4(c)(ii) as set out below (or, if so revoked, the Company elects not
to void the Agreement) and (ii) signs and returns the Waiver and General Release attached hereto as
Exhibit A no earlier than the Separation Date and no later than the 22nd day following
the Separation Date and does not revoke the ADEA waiver as set out therein (or, if so revoked, the
Company elects not to void the Agreement), then the Company shall pay on Employee’s behalf, or
reimburse Employee for, the amount of the applicable COBRA premium that exceeds the amount of
premium payable by Employee for the same level of coverage immediately prior to the Separation
Date. Any such COBRA premium payment by the Company that constitutes taxable income to Employee
shall be grossed up by the Company, assuming an applicable income tax rate of forty percent (40%).
Payments under this paragraph shall cease at the earlier of (i) the end of the first month in which
Employee is no longer eligible for COBRA for any reason (other than death or eligibility for
Medicare, provided that COBRA coverage continues for any qualified beneficiary), or (ii) Eighteen
(18) months after the Separation Date. Employee shall notify the Company as soon as practicable
after he ceases to be eligible for COBRA coverage due to coverage under the group health plan of
another employer. Notwithstanding the foregoing, the Company’s obligation to make such COBRA
payments or reimbursements, to the extent not already paid, shall cease immediately and such
payments will be forfeited if Employee violates any material obligation owed to Alion under this
Agreement, the Employment Agreement, the Intellectual Property Agreement, or like agreements
entered into between Employee and the Company.

(d) On or before close of business on the Separation Date, Employee shall return all Company
property, including but not limited to his Company automobile, along with all accessories purchased
or reimbursed by the Company, to the Company’s Director of Human Resources, provided that Employee
may retain his mobile telephone and related accessories thereto previously purchased for such
telephone.

(e) Except as otherwise provided in this Agreement, Employee waives any right of participation
in, or additional benefits under, the employee benefit, fringe benefit and compensation plans of
Alion with respect to any period after the Separation Date. The parties acknowledge and agree that
Employee shall retain whatever rights and benefits to which he will be entitled as a former
employee pursuant to the Company’s Employee Ownership, Savings and Investment Plan.

4. GENERAL RELEASE AND FORFEITURE BY EMPLOYEE

(a) Employee hereby releases and forever discharges Alion, its subsidiaries, affiliates,
insurers, predecessors, successors, and assigns, and the directors, officers, shareholders,
employees, representatives and agents of each of the foregoing (collectively “Releasees”) of and
from the following:

	 	(i)	 	Any and all claims, demands, and liabilities whatsoever of
every name and nature (other than those arising directly out of this
Agreement), including, without limitation, those with respect to Employee’s
employment by Alion, or the terms and conditions of employment, benefits or
compensation, or termination of his employment, which Employee has or ever had
against Releasees; and

	 	(ii)	 	Without limitation, any and all claims known or unknown as of
the date of execution of this Agreement for tortious injury, breach of
contract, and/or wrongful discharge (including, without limitation, any claim
for violation of public policy or constructive discharge), any personal gain
with respect to any claim arising under the qui tam provisions of the False
Claims Act, 31 U.S.C. 3730 or any other whistleblower claim, all claims for
infliction of emotional distress, all claims for slander, libel, or defamation
of character, and all claims for reinstatement, back pay, front pay,
compensatory or punitive damages, severance pay, attorneys’ fees, or costs, as
related to Employee’s employment by Alion, or the terms and conditions or
termination of his employment, benefits or compensation, or termination of such
employment; and

	 	(iii)	 	Without limitation, any and all claims known or unknown based
upon any allegation of employment discrimination, including, without
limitation, discrimination on the basis of race, color, sex, sexual
orientation, age (including any claim pursuant to the federal Age
Discrimination in Employment Act), religion, disability, national origin or any
other classification protected under applicable law; and

	 	(iv)	 	Without limitation, any and all claims known or unknown based
upon, arising out of or in any way relating to the phantom stock grant
agreements by and between Employee and Company (collectively the “Phantom Stock
Agreements”).

(b) It is agreed and understood that this release is a GENERAL RELEASE to be construed in the
broadest possible manner consistent with applicable law. Employee hereby acknowledges and agrees
that by signing this Agreement, he is signing this General Release.

(c) Employee acknowledges and agrees as follows:

	 	(i)	 	Employee has not filed or pursued any claim released hereby
against any Releasee by filing a lawsuit in any local, state or federal court
for or on account of anything which has occurred up to Execution Date as a
result of Employee’s employment or termination of employment, and Employee
shall not seek reinstatement or future employment with, or damages of any
nature, severance pay, attorneys’ fees, or costs from any Releasee;

	 	(ii)	 	Employee has been given the opportunity, if he so desires, to
consider this Agreement for twenty-one (21) days before executing it. Any
change made to the Agreement during the 21-day period, whether material or not,
will not restart the running of the 21-day period. In the event that Employee
executes this Agreement within twenty-one (21) days of the date of its delivery
to him, he acknowledges that such decision was entirely voluntary and that he
had the opportunity to consider this Agreement for the entire twenty-one (21)
day period. For a period of seven (7) days from the date of the execution of
this Agreement, Employee shall retain the right to revoke the waiver of claims
arising under the Age Discrimination in Employment Act (“ADEA”), a federal
statute that prohibits employers from discriminating against employees age 40
and over on the basis of age (the “Revocation Period”). In order to exercise
his right to revoke the waiver of his ADEA claims in accordance with 29 U.S.C.
§ 626, Employee must provide written notice to Alion, c/o Kathy Madaleno,
Director of Human Resources, 1750 Tysons Boulevard, Suite 1300, McLean,
Virginia 22102, no later than 5:00 p.m. on the seventh calendar day following
his execution of the Agreement. If Employee elects to exercise this revocation
right, the Agreement shall be voidable in its entirety at the discretion of the
Company and, if it so chooses to void the Agreement, the Company shall then be
relieved of any and all obligations to make any payments required under this
Agreement. If Employee does not revoke the waiver of claims under the ADEA, or
if the Company chooses not to void the Agreement after receipt of a timely
revocation of the ADEA waiver, he understands and agrees that it will become
fully enforceable immediately after the expiration of such revocation period;

	 	(iii)	 	Employee has been and is advised to consult an attorney
regarding this Agreement prior to executing it and that he has been given
sufficient time to do so;

	 	(iv)	 	Employee has received full and adequate consideration for this
General Release; and

	 	(v)	 	Employee fully understands and acknowledges the significance
and consequences of this Agreement and represents by his signature that the
terms of this Agreement are fully understood and voluntarily accepted by him.
This Agreement has been individually negotiated by Employee and is not part of
a group exit incentive or other group employment termination program.

(d) Excluded from this General Release are any claims or rights which cannot be waived by law,
including the right to challenge the enforceability of this Agreement and the Employee’s right to
file a charge with an administrative agency or participate in any agency investigation where that
agency expressly prohibits such a waiver. However, Employee is waiving his right to recover any
money or to reinstatement with any Releasee in connection with such a charge or investigation.
Employee is also waiving his right to recover money in connection with a charge filed by any other
individual or by the Equal Employment Opportunity Commission or any other federal, state or local
agency.

(e) This General Release becoming and remaining effective shall be a condition precedent to
Employee obtaining any payments or benefits under this Agreement.

5. NONDISCLOSURE OF INFORMATION; RETURN OF PROPERTY

(a) Employee shall keep secret and confidential and shall not disclose to any third party, in
any fashion or for any purpose whatsoever, any information regarding Alion which is (i) not
available to the general public, and/or (ii) not generally known outside the Company, and (iii) is
considered proprietary to or a trade secret of the Company, to which he has or will have had access
at any time during the course of his employment by the Company, including, without limitation, any
information relating to: the Company’s business or operations; its plans, strategies, prospects or
objectives; its products, technology, processes or specifications; its research and development
operations or plans; its customers and customer lists; its manufacturing, distribution, sales,
service, support and marketing practices and operations; its financial condition and results of
operations; its operational strengths and weaknesses; and, its personnel and compensation policies
and procedures.

(b) Employee agrees to return to Alion, on or before the Separation Date, (i) all documents,
data, material, details and copies thereof in any form (electronic or hard copy) that are the
property of Alion or were created using Alion resources or during any hours worked for Alion
including, without limitation, any data referred to in the immediately preceding Paragraph; and
(ii) all other Alion property including, without limitation, all computer equipment, personal
digital assistances or similar devices, fax machines and other equipment (except as otherwise
agreed, but including electronic information and/or software on Alion-provided computer equipment
to be retained by Employee) and associated passwords, property passes, keys, credit cards, business
cards and identification badges.

6. NO DETRIMENTAL COMMUNICATIONS

Employee agrees that he will not make, disclose or cause to be disclosed any negative,
adverse, false or derogatory comments or statements about Releasees with regard to any product or
service provided by Releasees, about Releasees’ prospects for the future, or about Releasees in
general. Alion agrees that no authorized officer of Alion will disclose or cause to be disclosed
outside of Releasees any negative, adverse, false or derogatory comments or statements about
Employee. The parties agree that this provision will not be construed so as to bar any person from
providing full and truthful testimony in response to a summons, court or administrative order or
subpoena, or as otherwise provided by law, nor shall it prohibit the Company from discussing
matters regarding Employee with the Company’s outside legal and accounting representatives, or
with the Company’s Board of Directors. For the limited purposes of this Paragraph only, the term
“Releasees” shall mean only the directors, chief executive officer and executive and senior vice
presidents of Alion. This provision shall in no way be construed to limit or impair Employee’s
ability to perform the duties of his position as an Employee and counsel of the Company in good
faith and consistent with his ethical duties as an attorney.

7. FUTURE ASSISTANCE

Alion may seek the assistance and cooperation of Employee in connection with any audit,
investigation, litigation or proceeding arising out of matters within the knowledge of Employee and
related to his position as an employee of Alion, and in any such instance, Employee shall provide
such assistance, cooperation or testimony, and Alion shall pay Employee’s reasonable costs and
expenses in connection therewith.

8. ADDITIONAL OBLIGATIONS OF EMPLOYEE 

Employee acknowledges and agrees that, in addition to the foregoing obligations, he remains
bound by the obligations contained in Article 4 of the Employment Agreement entered into on June
27, 2007, as amended by the First Amended to the Employment Agreement, entered into on February 18,
2008, as well as the obligations contained in the Intellectual Property Agreement he entered into
at the outset of his employment with the Company. The obligations contained in this Agreement
shall be construed as consistent with and supplemental to, rather than superseding, these prior
obligations, which continue in full force and effect.

9. GOVERNING LAW; SEVERABILITY

This Agreement is entered into and shall be construed under the laws of the Commonwealth of
Virginia. In the event any provision of this Agreement is determined to any extent to be illegal
or unenforceable by a duly authorized court of competent jurisdiction, then the illegal or
unenforceable provision shall be severed from this Agreement. In the event of such severance, the
remainder of this Agreement shall not be affected thereby, and each remaining provision of this
Agreement shall be valid and enforceable to the fullest extent permitted by law; provided, however,
that the parties expressly acknowledge and agree that the full waiver and release of all claims by
Employee is essential to effectuate the parties’ intent in entering into this Agreement and that,
in the event the general release of claims set forth in Paragraph 4 is severed, the parties’
remaining obligations under this Agreement shall be deemed waived (other than obligations arising
under Paragraphs 5), and any consideration or value delivered by one party to the other under this
Agreement shall constitute a binding obligation by the recipient to the other.

10. WAIVERS

The failure of either party to require the performance of any term or obligation of this
Agreement, or the waiver by either party of any breach of this Agreement, shall not prevent any
subsequent enforcement of such term or obligation and shall not be deemed a waiver of any
subsequent breach.

11. AMENDMENTS

This Agreement may be modified or amended, in whole or in part, only by the mutual agreement
of the parties in writing.

12. NO OTHER INDUCEMENTS/ ENTIRE AGREEMENT 

This Agreement sets forth the entire understanding of the parties in connection with the
subject matter hereof. Any and all prior negotiations or discussion, either oral or written, are
merged into this Agreement, except where such other agreements are referenced herein, in which case
all post-employment continuing obligations of Employee in such agreements shall continue in
accordance with their terms and shall be construed to be consistent with this Agreement. Neither
of the parties has made any settlement, representation or warranty in connection herewith (except
those expressly set forth in this Agreement) which has been relied upon by the other party, or
which acted as an inducement for the other party to enter into this Agreement.

13. PERSONS BOUND BY AGREEMENT

This Agreement shall be binding upon and inure to the benefit of Employee and Releasees and
their respective successors.

14. ASSIGNMENT OF INTERESTS

Employee warrants that he has not assigned, transferred or purported to assign or transfer any
claim against Releasees.

15. DISPUTE RESOLUTION

Any disputes under this Agreement shall be governed by the dispute resolution provision
contained in paragraph 6(c) of the Employment Agreement which is incorporated herein by reference.
Further, in the event that any action or proceeding is initiated to enforce or interpret the
provisions of this Agreement, or to recover for a violation of the Agreement, the prevailing party
in any such action or proceeding shall be entitled to its costs (including reasonable attorneys’
fees). Nothing in this Paragraph is intended to, or shall, place any limitation or condition
precedent on Employee’s ability to challenge this Agreement.

16. NO ADMISSION AS EVIDENCE

This Agreement is nonprecedential and may not be raised as evidence by any person in
connection with any subsequent litigation, except as necessary to enforce this Agreement. Further,
this Agreement shall never at any time for any purpose be considered as an admission of liability
or wrongdoing by the Company or Employee.

17. CONFIDENTIALITY

Employee agrees to keep confidential the existence of this Agreement, as well as all of its
terms and conditions, and not to disclose to any person or entity the existence, terms or
conditions of this Agreement, except to his attorney, financial advisors and members of his
immediate family, provided they agree to keep confidential such existence, terms and conditions.
In the event that Employee believes he is compelled by law to divulge the existence, terms or
conditions of this Agreement, he will notify Alion’s Law Department of the basis for that belief
before actually divulging the information. Employee hereby confirms that, as of the date of his
signing of this Agreement, he has not disclosed the existence, terms or conditions of this
Agreement, except as otherwise provided in this Agreement. Alion also agrees to keep confidential
the existence of this Agreement and not to disclose its terms and conditions outside of Releasees,
its attorneys and consultants, unless Alion is otherwise required to disclose such terms and
conditions by operation of law or request by a governmental agency, or as required by any federal
or state securities laws or regulations.

1

IN WITNESS WHEREOF, the parties hereby agree to the terms and conditions of this Agreement as
set forth above.

EMPLOYEE:

	 	 	 	 	 
	By:
	 	/s/ James C. Fontana

	 	12/8/09
	 	 	 

	 	 
	 	 	James C. Fontana

	 	Date
	ALION SCIENCE AND TECHNOLOGY CORPORATION:
	By:
	 	/s/ Bahman Atefi

	 	12/8/09
	 	 	 

	 	 
	 	 	Bahman Atefi

	 	Date

2

WAIVER AND GENERAL RELEASE

Employee hereby executes this Waiver and General Release as of the date specified below, which
shall be no earlier than the Separation Date and no later than the 22nd day after the
Separation Date:

In consideration for the Severance Payments and other benefits set forth in the Separation
Agreement and General Release between Employee and Alion, Employee hereby releases and forever
discharges Alion, its subsidiaries, affiliates, insurers, predecessors, successors, and assigns,
and the directors, officers, shareholders, employees, representatives and agents of each of the
foregoing (collectively “Releasees”) of and from the following:

(i) Any and all claims, demands, and liabilities whatsoever of every name and nature (other
than those arising directly out of this Agreement), including, without limitation, those with
respect to Employee’s employment by Alion, or the terms and conditions of employment, benefits or
compensation, or termination of his employment, which Employee has or ever had against Releasees;
and

(ii) Without limitation, any and all claims known or unknown as of the date of execution of
this Agreement for tortious injury, breach of contract, and/or wrongful discharge (including,
without limitation, any claim for violation of public policy or constructive discharge), any
personal gain with respect to any claim arising under the qui tam provisions of the False Claims
Act, 31 U.S.C. 3730 or any other whistleblower claim, all claims for infliction of emotional
distress, all claims for slander, libel, or defamation of character, and all claims for
reinstatement, back pay, front pay, compensatory or punitive damages, severance pay, attorneys’
fees, or costs, as related to Employee’s employment by Alion, or the terms and conditions or
termination of his employment, benefits or compensation, or termination of such employment; and

(iii) Without limitation, any and all claims known or unknown based upon any allegation of
employment discrimination, including, without limitation, discrimination on the basis of race,
color, sex, sexual orientation, age (including any claim pursuant to the federal Age Discrimination
in Employment Act), religion, disability, national origin or any other classification protected
under applicable law; and

(iv) Without limitation, any and all claims known or unknown based upon, arising out of or in
any way relating to the phantom stock grant agreements by and between Employee and Company
(collectively the “Phantom Stock Agreements”).

(b) It is agreed and understood that this release is a GENERAL RELEASE to be construed in the
broadest possible manner consistent with applicable law. Employee hereby acknowledges and agrees
that by signing this Agreement, he is signing this General Release.

(c) Employee acknowledges and agrees as follows:

(i) Employee has not filed or pursued any claim released hereby against any Releasee by filing
a lawsuit in any local, state or federal court for or on account of anything which has occurred up
to Execution Date as a result of Employee’s employment or termination of employment, and Employee
shall not seek reinstatement or future employment with, or damages of any nature, severance pay,
attorneys’ fees, or costs from any Releasee;

(ii) Employee has been given the opportunity, if he so desires, to consider this Agreement for
twenty-one (21) days before executing it. Any change made to the Agreement during the 21-day
period, whether material or not, will not restart the running of the 21-day period. In the event
that Employee executes this Agreement within twenty-one (21) days of the date of its delivery to
him, he acknowledges that such decision was entirely voluntary and that he had the opportunity to
consider this Agreement for the entire twenty-one (21) day period. For a period of seven (7) days
from the date of the execution of this Agreement, Employee shall retain the right to revoke the
waiver of claims arising under the Age Discrimination in Employment Act (“ADEA”), a federal statute
that prohibits employers from discriminating against employees age 40 and over on the basis of age.
In order to exercise his right to revoke the waiver of his ADEA claims in accordance with 29
U.S.C. § 626, Employee must provide written notice to Alion, c/o Kathy Madaleno, Director of Human
Resources, 1750 Tysons Boulevard, Suite 1300, McLean, Virginia 22102, no later than 5:00 p.m. on
the seventh calendar day following his execution of the Agreement. If Employee elects to exercise
this revocation right, the Agreement shall be voidable in its entirety at the discretion of the
Company and, if it so chooses to void the Agreement, the Company shall then be relieved of any and
all obligations to may any payments required under this Agreement. If Employee does not revoke the
waiver of claims under the ADEA, or if the Company chooses not to void the Agreement after receipt
of a timely revocation of the ADEA waiver, he understands and agrees that it will become fully
enforceable immediately after the expiration of such revocation period;

(iii) Employee has been and is advised to consult an attorney regarding this Agreement prior
to executing it and that he has been given sufficient time to do so;

(iv) Employee has received full and adequate consideration for this General Release; and

(v) Employee fully understands and acknowledges the significance and consequences of this
Agreement and represents by his signature that the terms of this Agreement are fully understood and
voluntarily accepted by him. This Agreement has been individually negotiated by Employee and is not
part of a group exit incentive or other group employment termination program.

(d) Excluded from this General Release are any claims or rights which cannot be waived by law,
including the right to challenge the enforceability of this Agreement and the Employee’s right to
file a charge with an administrative agency or participate in any agency investigation where that
agency expressly prohibits such a waiver. However, Employee is waiving his right to recover any
money or to reinstatement with any Releasee in connection with such a charge or investigation.
Employee is also waiving his right to recover money in connection with a charge filed by any other
individual or by the Equal Employment Opportunity Commission or any other federal, state or local
agency.

     

Signature

     

Printed Name

     

Date

3

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