Alion Science & Technology 11-K Annual report of employee stock purchases

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 11-K

FOR ANNUAL REPORTS OF EMPLOYEE STOCK PURCHASE, SAVINGS
AND SIMILAR PLANS PURSUANT TO SECTION 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934

þ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE FISCAL YEAR ENDED SEPTEMBER 30, 2010

o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE TRANSITION PERIOD FROM                     TO                     

COMMISSION FILE NUMBER 333-89756

A. Full title of the plan and the address of the plan, if different from that of the issuer named below:

THE ALION SCIENCE AND TECHNOLOGY CORPORATION
EMPLOYEE OWNERSHIP, SAVINGS AND INVESTMENT PLAN

B. Name of issuer of the securities held pursuant to the plan and the address of its principal executive offices:

ALION SCIENCE AND TECHNOLOGY CORPORATION

1750 Tysons Boulevard
Suite 1300
McLean, VA 22102
(703) 918-4480

ALION SCIENCE AND TECHNOLOGY CORPORATION
EMPLOYEE OWNERSHIP, SAVINGS AND INVESTMENT PLAN

TABLE OF CONTENTS

	Page
Report of Independent Registered Public Accounting Firm		1
FINANCIAL STATEMENTS:
Statements of Net Assets Available for Benefits as of September 30, 2010 and 2009		2
Statements of Changes in Net Assets Available for Benefits for the Years Ended September 30, 2010, 2009, and 2008		4
Notes to Financial Statements		7
SUPPLEMENTAL SCHEDULE AS OF SEPTEMBER 30, 2010:
Form 5500, Schedule H, Part IV, Line 4i—Schedule of Assets (Held at End of Year)		15

NOTE: All other schedules required under Section 2520.103-10 of the Department of Labor’s Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974, have been omitted because they are not applicable

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

ESOP Committee
Alion Science and Technology Corporation
Employee Ownership, Savings and Investment Plan:

We have audited the accompanying statements of net assets available for benefits of the Alion Science and Technology Corporation Employee Ownership, Savings and Investment Plan (the “Plan”) as of September 30, 2010 and 2009, and the related statements of changes in net assets available for benefits for the three years ended September 30, 2010. These financial statements are the responsibility of the Plan’s management. Our responsibility is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform our audits to obtain reasonable assurance about whether the financial statements are free of material misstatement. The Plan is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Plan’s internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, such financial statements present fairly, in all material respects, the net assets available for benefits of the Plan as of September 30, 2010 and 2009, and the changes in net assets available for benefits for the three years ended September 30, 2010, in conformity with accounting principles generally accepted in the United States of America.

Our audits were conducted for the purpose of forming an opinion on the basic financial statements taken as a whole. The supplemental schedule of assets (held at end of year) as of September 30, 2010, is presented for the purpose of additional analysis and is not a required part of the basic financial statements but is supplementary information required by the Department of Labor’s Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. The supplemental schedule is the responsibility of the Plan’s management. Such supplemental schedule has been subjected to the auditing procedures applied in our audit of the basic 2010 financial statements and, in our opinion, is fairly stated in all material respects when considered in relation to the basic financial statements taken as a whole.

/s/ DELOITTE & TOUCHE LLP

McLean, Virginia
March 28, 2011

ALION SCIENCE AND TECHNOLOGY CORPORATION
EMPLOYEE OWNERSHIP, SAVINGS AND INVESTMENT PLAN

STATEMENT OF NET ASSETS AVAILABLE FOR BENEFITS

AS OF SEPTEMBER 30, 2010

			ESOP
	Non-ESOP		Allocated		Unallocated		Total		Plan Total
Assets:
Cash and cash equivalents	$	—	$	1,896,360	$	—	$	1,896,360	$	1,896,360
Investments:
Alion Science and Technology Corporation common stock		—		150,791,924		—		150,791,924		150,791,924
Mutual funds		64,368,504		—		—		—		64,368,504
Pooled separate accounts		115,301,685				—		—		115,301,685
Total Investments		179,670,189		152,688,284		—		152,688,284		332,358,473
Receivables:
Employer contribution		117,733		336,306		—		336,306		454,039
Participant contributions		605,358		118,141		—		118,141		723,499
Participant loans		2,970,238		—		—		—		2,970,238
Other contributions		36,022		—		—		—		36,022
Total receivables		3,729,351		454,447		—		454,447		4,183,798
Total assets		183,399,540		153,142,731		—		153,142,731		336,542,271
Liabilities:
Stock subscription payable		—		1,896,360		—		1,896,360		1,896,360
Net assets available for benefits	$	183,399,540	$	151,246,371	$	—	$	151,246,371	$	334,645,911

See accompanying notes to financial statements.

2

ALION SCIENCE AND TECHNOLOGY CORPORATION
EMPLOYEE OWNERSHIP, SAVINGS AND INVESTMENT PLAN

STATEMENT OF NET ASSETS AVAILABLE FOR BENEFITS
AS OF SEPTEMBER 30, 2009

			ESOP
	Non-ESOP		Allocated		Unallocated		Total		Plan Total
Assets:
Cash and cash equivalents	$	—	$	—	$	—	$	—	$	—
Investments:
Alion Science and Technology Corporation common stock		—		187,137,458		—		187,137,458		187,137,458
Mutual funds		54,549,458		—		—		—		54,549,458
Pooled separate accounts		103,578,263		—		—		—		103,578,263
Total Investments		158,127,721		187,137,458		—		187,137,458		345,265,179
Receivables:
Employer contribution		107,108		310,300		—		310,300		417,408
Participant contributions		538,384		132,821		—		132,821		671,205
Participant loans		2,725,932		—		—		—		2,725,932
Other contributions		30,135		—		—		—		30,135
Total receivables		3,401,559		443,121		—		443,121		3,844,680
Total assets		161,529,280		187,580,579		—		187,580,579		349,109,859
Liabilities:
Stock subscription payable		—		—		—		—		—
Net assets available for benefits	$	161,529,280	$	187,580,579	$	—	$	187,580,579	$	349,109,859

See accompanying notes to financial statements.

3

ALION SCIENCE AND TECHNOLOGY CORPORATION
EMPLOYEE OWNERSHIP, SAVINGS AND INVESTMENT PLAN

STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS
FOR THE YEAR ENDED SEPTEMBER 30, 2010

			ESOP
	Non-ESOP		Allocated			Unallocated		Total			Plan Total
Additions to net assets attributed to:
Investment income:
Net (depreciation) appreciation in fair value of investments
Mutual funds / Alion Science and Technology common stock	$	4,986,309	$	(41,131,109	)	$	—	$	(41,131,109	)	$	(36,144,800	)
Pooled separate accounts		8,192,696		—			—		—			8,192,696
Interest		1,285,119		582			—		582			1,285,701
Investment income (loss)		14,464,124		(41,130,527	)		—		(41,130,527	)		(26,666,403	)
Contributions
Employer contributions		3,297,382		10,125,296			—		10,125,296			13,422,678
Participant contributions		17,803,100		3,934,186			—		3,934,186			21,737,286
Rollovers		1,670,995		56,968			—		56,968			1,727,963
Transfer between ESOP and non-ESOP		5,305,400		(5,305,400	)		—		(5,305,400	)		—
Total additions		42,541,001		(32,319,477	)		—		(32,319,477	)		10,221,524
Deductions to net assets attributable to:
Benefits paid to participants		20,655,950		4,014,731			—		4,014,731			24,670,681
Fees (short-term trading and loans)		14,791		—			—		—			14,791
Total deductions		20,670,741		4,014,731			—		4,014,731			24,685,472
Increase (decrease) in net assets available for benefits		21,870,260		(36,334,208	)		—		(36,334,208	)		(14,463,948	)
Net assets available for benefits:
Beginning of period		161,529,280		187,580,579			—		187,580,579			349,109,859
End of period	$	183,399,540	$	151,246,371		$	—	$	151,246,371		$	334,645,911

See accompanying notes to financial statements.

4

ALION SCIENCE AND TECHNOLOGY CORPORATION
EMPLOYEE OWNERSHIP, SAVINGS AND INVESTMENT PLAN

STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS
FOR THE YEAR ENDED SEPTEMBER 30, 2009

				ESOP
	Non-ESOP			Allocated			Unallocated		Total			Plan Total
Additions to net assets attributed to:
Investment income:
Net appreciation (depreciation) in fair value of investments
Mutual funds / Alion Science and Technology common stock	$	1,095,483		$	(19,357,523	)	$	—	$	(19,357,523	)	$	(18,262,040	)
Pooled separate accounts		(1,498,065	)		—			—		—			(1,498,065	)
Interest		907,331			6,635			—		6,635			913,966
Investment income (loss)		504,749			(19,350,888	)		—		(19,350,888	)		(18,846,139	)
Contributions
Employer contributions		3,313,426			10,340,323			—		10,340,323			13,653,749
Participant contributions		17,704,476			4,678,320			—		4,678,320			22,382,796
Rollovers		940,698			106,915			—		106,915			1,047,613
Transfer between ESOP and non-ESOP		5,882,512			(5,882,512	)		—		(5,882,512	)		—
Total additions		28,345,861			(10,107,842	)		—		(10,107,842	)		18,238,019
Deductions to net assets attributable to:
Benefits paid to participants		12,022,071			3,239,219			—		3,239,219			15,261,290
Fees (short-term trading)		11,166			—			—		—			11,166
Total deductions		12,033,237			3,239,219			—		3,239,219			15,272,456
Increase (decrease) in net assets available for benefits		16,312,624			(13,347,061	)		—		(13,347,061	)		2,965,563
Net assets available for benefits:
Beginning of period		145,216,656			200,927,640			—		200,927,640			346,144,296
End of period	$	161,529,280		$	187,580,579		$	—	$	187,580,579		$	349,109,859

See accompanying notes to financial statements.

5

ALION SCIENCE AND TECHNOLOGY CORPORATION
EMPLOYEE OWNERSHIP, SAVINGS AND INVESTMENT PLAN

STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS
FOR THE YEAR ENDED SEPTEMBER 30, 2008

				ESOP
	Non-ESOP			Allocated			Unallocated		Total			Plan Total
Additions to net assets attributed to:
Investment income:
Net depreciation in fair value of investments
Mutual funds / Alion Science and Technology common stock	$	(16,945,645	)	$	(8,615,946	)	$	—	$	(8,615,946	)	$	(25,561,591	)
Pooled separate accounts		(19,116,598	)		—			—		—			(19,116,598	)
Interest		3,518,565			38,613			—		38,613			3,557,178
Investment loss		(32,543,678	)		(8,577,333	)		—		(8,577,333	)		(41,121,011	)
Contributions
Employer contributions		2,432,852			9,497,898			—		9,497,898			11,930,750
Participant contributions		17,860,127			5,183,356			—		5,183,356			23,043,483
Rollovers		2,136,543			156,340			—		156,340			2,292,883
Transfer between ESOP and non-ESOP		3,337,302			(3,337,302	)		—		(3,337,302	)		—
Transfer of assets from other plans		333,849											333,849
Total additions		(6,443,005	)		2,922,959			—		2,922,959			(3,520,046	)
Deductions to net assets attributable to:
Benefits paid to participants		20,135,513			3,640,787			—		3,640,787			23,776,300
Fees (short-term trading)		11,134			—			—		—			11,134
Total deductions		20,146,647			3,640,787			—		3,640,787			23,787,434
Decrease in net assets available for benefits		(26,589,652	)		(717,828	)		—		(717,828	)		(27,307,480	)
Net assets available for benefits:
Beginning of period		171,806,308			201,645,468			—		201,645,468			373,451,776
End of period	$	145,216,656		$	200,927,640		$	—	$	200,927,640		$	346,144,296

See accompanying notes to financial statements.

6

ALION SCIENCE AND TECHNOLOGY CORPORATION
EMPLOYEE OWNERSHIP, SAVINGS AND INVESTMENT PLAN

NOTES TO FINANCIAL STATEMENTS

FOR THE YEARS ENDED SEPTEMBER 30, 2010, 2009 AND 2008

(1) PLAN DESCRIPTION AND RELATED INFORMATION

The following is a general description of Alion Science and Technology Corporation Employee Ownership, Savings and Investment Plan (the Plan). The description provides only general information. Participants should refer to the plan agreement for a more complete description of the Plan’s provisions.

General — Alion Science and Technology Corporation (the Plan Sponsor, Alion or the Company) established the Plan effective as of December 19, 2001. The Plan was amended and restated effective October 1, 2006. The Plan is a combination of a tax exempt employee stock ownership plan (ESOP component) and a tax exempt 401(k) plan (non-ESOP component) under the provisions of the Employee Retirement Income Security Act of 1974, as amended (ERISA) and Sections 401(a) and 401(k) of the Internal Revenue Code of 1986, as amended (IRC). The ESOP Committee, which consists of seven persons appointed by Alion’s chief executive officer, administers the Plan. Two trusts hold Plan assets. State Street Bank & Trust Company is the trustee for the Alion Science and Technology Corporation Employee Ownership, Savings and Investment Trust (the ESOP Trust), which holds legal title to the Alion common stock in the Plan’s ESOP component. The ESOP Committee is the trustee for the non-ESOP component of the Plan. Principal Financial Group (Principal) is record keeper and custodian for the Plan’s ESOP and non-ESOP components.

Eligibility — Employees are immediately eligible to make pre-tax contributions to the Plan; they become eligible to receive matching contributions after one year of employment. Employees in certain benefits groups become eligible to receive Company discretionary and retirement plan contributions after one year of employment. There were 6,673 and 6,500 Plan participants at September 30, 2010 and 2009.

Contributions — Participants may elect to contribute up to 60% of their eligible compensation to the Plan, subject to statutory annual maximum limits as adjusted each year for cost of living increases per IRC regulations. IRC annual limitations apply to all of a participant’s salary reduction contributions and similar contributions under this and other plans. A participant may contribute up to 11% of his or her eligible compensation to the ESOP component. Alion matches 100% of the first 3% and 50% of the next 2% of the eligible compensation contributed by each participant. Matching contributions are in shares of Alion common stock. The Company also contributes 2.5% of eligible compensation earned to certain eligible participants. The contribution consists of 1% in Alion stock (not participant directed) and 1.5% in cash (participant directed).

Alion can also make an annual discretionary contribution to the Plan. Each plan year, the Company determines what portion of its profits, if any, to contribute to the Plan. The Company made no discretionary contribution for the plan years ended September 30, 2010 and 2009. During the plan year ended September 30, 2010, Company contributions of $13,422,678 included $10,125,296 in Alion common stock and $3,297,382 in cash. During the plan year ended September 30, 2009, Company contributions of $13,653,749 included $10,340,323 in Alion common stock and $3,313,426 in cash. During the plan year ended September 30, 2008, Company contributions of $11,930,750 included $9,497,898 in Alion common stock and $2,432,852 in cash.

7

Participant Accounts — The ESOP Committee, as of each valuation date, allocates earnings (losses) in the ESOP component to participant accounts so that the total of all participant account balances equals the fair market value of the ESOP trust fund as of each valuation date. Each participant’s 401(k) account is credited with: participant contributions; Company contributions; the participant’s share of plan earnings (losses) and appreciation (depreciation) from investing contributions; less administrative expenses. A participant is entitled to that benefit which his or her account can provide.

Voting Rights — On matters involving the approval or disapproval of any Company merger or consolidation, recapitalization, reclassification, liquidation, dissolution, sale of substantially all of Alion’s assets, tender offer for, or other offer to purchase, the shares of Alion’s common stock or other such transactions prescribed by applicable regulation, each participant is entitled to exercise voting rights attributable to the shares of Alion common stock allocated to his or her ESOP account. In all such cases, the ESOP Trustee is required to notify the participants of such voting rights prior to the time that such rights are to be exercised. The ESOP Trustee is to vote any allocated shares for which participant instructions have not been received and any unallocated shares in accordance with ESOP Committee instructions. In all other circumstances, and except as limited by its fiduciary duties, the ESOP Trustee is to vote all shares of Company common stock as directed by the ESOP Committee.

Vesting — Each eligible participant has immediate, fully vested rights in all employee contributions, rollover contributions and Company-matching contributions. Alion retirement plan contributions to the Plan, and the earnings on such contributions, vest over a five-year period as follows:

• 25% after two years of service;

• 50% after three years of service;

• 75% after four years of service; and

• 100% after five years of service.

Participants in the John J. McMullen Associates, Inc. Employee Stock Ownership Plan (the JJMA ESOP) who terminated employment with JJMA prior to April 1, 2005 and whose JJMA ESOP accounts were merged with the Plan are currently vested in a percentage of their merged JJMA ESOP accounts according to the following schedule:

• one year of service with JJMA — 20% vested;

• two years of service with JJMA — 40% vested;

• three years of service with JJMA — 60% vested;

• four years of service with JJMA — 80% vested; and

• five years of service with JJMA — 100% vested.

Investment Options — The Plan provides for various investments in mutual funds, pooled separate accounts, and Alion common stock. As of September 30, 2010, there were 24 non-ESOP investment options available through Principal. The Plan uses the Principal Global Investors Money Market Separate Account as the short-term investment option for the ESOP component to hold contributions until the ESOP Trustee can purchase Alion common stock. All ESOP component contributions and earnings (losses) are used to purchase shares of Alion common stock.

8

Loans to Participants — Participants may borrow from their fund accounts a minimum of $1,000 up to a maximum of the lesser of $50,000 or 50% of their vested account balance, subject to certain restrictions. A participant may have no more than two loans outstanding at any time. All loans are amortized over a period not to exceed five years, except for loans to purchase or construct a primary residence which are permitted to be repaid over a maximum of fifteen years. Participant loans are secured by the balance in the participant’s account and bear a reasonable rate of interest that provides a return commensurate with the prevailing interest rate charged on similar loans by persons in the business of lending money. Participants repay loan principal and interest ratably through payroll deductions.

Payment of Benefits

Non-ESOP Component

For any event that may result in a distribution of benefits, a participant’s benefit is distributed in a single, lump sum payment in cash and is recorded when paid.

ESOP Component

Distributions from the ESOP component are in the form of shares of Alion common stock. Participants can hold or immediately sell distributed shares to the Company. The Company is legally obligated to repurchase shares of its common stock from terminating participants subject to specific rules regarding distributions.

Distributions as a result of retirement, death, and/or disability are paid in a single, lump sum cash payment or in substantially equal, annual cash payment installments not to exceed five years beginning on the earlier of:

a. the first valuation of the Company’s common stock following the participant’s retirement, death, and/or disability; or

b. one year after the end of the Plan year in which the participant’s death, disability or retirement occurs.

In general, distributions as a result of resignation, dismissal, or layoff are paid in a single, lump sum cash payment or in substantially equal, annual cash payment installments not to exceed five years beginning on the earlier of:

a. the sixth Plan year following the participant’s resignation, dismissal, or layoff; or

b. the first valuation of the Company’s common stock following the participant’s sixty-fifth birthday.

Special Price Protection — Initial participants who were 55 years of age or older as of December 31, 2002 and who requested a distribution at any time prior to January 1, 2008 due to death, disability, or separation from service on or after reaching age 60, can require Alion to purchase the stock allocated to their accounts at the greater of the then-current fair market value of a share of Alion common stock or $10.00. Special price protection only applies to shares purchased in December 2002.

9

Diversification —Any participant who is at least age 55 with 10 or more years of participation in the Plan can diversify a portion of his or her ESOP account to other investment options. In each of the first five years thereafter, a participant may diversify up to 25% of his or her ESOP shares, less any shares previously diversified. In the sixth year, the percentage increases to 50%. Years of participation in the Human Factors Applications, Inc. Profit Sharing & 401(k) Plan, Innovative Technology Solutions Corporation 401(k) Profit Sharing Plan and Trust, and John J. McMullen Associates, Inc. Employee Stock Ownership Plan are counted for purposes of diversification.

Special Diversification — Pursuant to the Plan, beginning October 2007, and in the first quarter of each year thereafter, all participants hired by the Company on December 20, 2002, are permitted to diversify 10% of their ESOP account balance provided any such diversification does not violate any loan covenants in effect at the time. Participants hired after that date are eligible for this diversification feature following five years of service with the Company. Alion’s existing loan covenants currently prohibit special diversification.

Forfeitures — Alion can use terminated employees’ non-vested account balances to reduce future Company contributions and/or pay administrative expenses. For the three years ended September 30, 2010, Alion used forfeitures to reduce ESOP and non-ESOP contributions. Terminated employees forfeited $174,808 in ESOP and $178,960 in non-ESOP account balances during the year ended September 30, 2010. They forfeited $118,616 in ESOP and $117,387 in non-ESOP account balances during the year ended September 30, 2009; and $81,279 in ESOP and $249,823 in non-ESOP account balances during the year ended September 30, 2008.

Termination — Although it has not expressed any intent to do so, Alion has the right under the Plan to discontinue its contributions at any time and to terminate the Plan subject to ERISA requirements. If the Company were to terminate the Plan, participants would become 100% vested in all Plan account balances. Alion would be required to obtain IRS approval to terminate the Plan. Following IRS approval, the Plan would distribute benefits in accordance with Plan distribution provisions.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Accounting and Use of Estimates — The accompanying financial statements are prepared on the accrual basis of accounting. The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires the Plan’s management to use estimates and assumptions that affect amounts reported in the accompanying financial statements and disclosures. Actual results could differ from those estimates.

Investment Valuation and Income Recognition — Shares of Alion common stock are valued semi-annually at March 31 and September 30. The estimated fair value of Alion common stock for all purposes under the Plan is determined by the ESOP Trustee based upon a valuation performed by an independent appraiser. Quoted market prices are used to value the mutual funds. Purchases and sales of securities are recorded on a trade-date basis. Dividends are recorded on the ex-dividend date. Interest is recorded on accrual basis.

Participant Loans — Participant loans are carried at unpaid principal plus accrued interest. In September 2010, the Financial Accounting Standards Board issued Accounting Standards Update 2010-25 (ASU 2010-25) Reporting Loans to Participants by Defined Contribution Pension Plans. ASU 2010-25 updates Accounting Standards Codification Topic 962 — Defined Contribution Pension Plans. ASU 2010-25 requires defined contribution plans to report loans to employees as notes receivable rather than plan investments subject to fair value reporting. ASU 2010-25 is effective for plan years beginning after December 15, 2010 and permits early adoption. The Plan adopted ASU 2010-25 effective fiscal year 2010 and accordingly reclassified prior year employee loan balances from investments to receivables consistent with current presentation. ERISA rules require the Plan to report participant loans as plan investments; accordingly these loans are included in Form 5500, Part IV, Schedule H, Line 4(i) Schedule of Assets (Held at End of Year) as well as Form 5500, Part I, Line c (8) Participant Loans.

Administration of Plan Assets — The Plan’s assets, which consist of Alion common stock, mutual funds, pooled separate accounts, participant loans and a contribution receivable, are held by the ESOP Trustee, State Street Bank & Trust Company, and the record keeper and custodian of the non-ESOP component, Principal Financial Group. Certain administrative functions are performed by Alion officers or employees who receive no compensation from the Plan. Administrative and trustee expenses are to be paid by the Plan. However, the Company may pay for administrative and trustee expenses at its own discretion. For the years ended September 30, 2010 and 2009, the Company paid all administrative and trustee expenses. The IRC requires the Plan to return excess contributions.

10

3. INVESTMENTS

The fair values of the investments representing five percent or more of the Plan’s net assets at September 30, 2010 or 2009 were as follows:

	September 30,
	2010		2009
Alion Science and Technology Corporation common stock	$	150,791,924	$	187,137,458
Principal Money Market Separate Acct		32,161,624		33,607,160
Total	$	182,953,548	$	220,744,618

The Plan’s investments (including gains and losses on investments bought and sold, as well as held during the year) appreciated (depreciated) in value for the years ended September 30, 2010, 2009 and 2008 as follows:

	September 30,
	2010			2009			2008
Mutual funds and pooled separate accounts	$	14,464,706		$	511,384		$	(32,505,065	)
Alion Science and Technology Corporation common stock		(41,131,109	)		(19,357,523	)		(8,615,946	)
Net depreciation in fair market value of investments	$	(26,666,403	)	$	(18,846,139	)	$	(41,121,011	)

The Plan’s investment in Company common stock as of September 30, 2010 and 2009 has been delineated as follows:

	September 30,
	2010		2009
Alion Science and Technology Corporation common stock — number of shares		5,658,234		5,424,274
Cost	$	130,384,960	$	120,681,392
Fair value	$	150,791,924	$	187,137,458

4. FAIR VALUE MEASUREMENTS

The Plan adopted Accounting Standards Codification (ASC) 820 — Fair Value Disclosures in fiscal year 2009 for all financial assets and liabilities recognized or disclosed at fair value in the financial statements. The Plan adopted the provisions of ASC 820 for nonfinancial assets and liabilities recognized or disclosed at fair value in the financial statements on a recurring basis; no such assets or liabilities exist at the balance sheet date.

ASC 820 defines fair value as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in an orderly transaction between market participants at the measurement date. It establishes a fair value hierarchy and a framework which requires categorizing assets and liabilities into one of three levels based on the assumptions (inputs) used in valuing the asset or liability. Level 1 provides the most reliable measure of fair value, while Level 3 generally requires significant management judgment. Level 1 inputs are unadjusted, quoted market prices in active markets for identical assets or liabilities. Level 2 inputs are observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets or liabilities in active markets or quoted prices for identical assets or liabilities in inactive markets. Level 3 inputs include unobservable inputs that are supported by little, infrequent, or no market activity and reflect management’s own assumptions about inputs used in pricing the asset or liability. The Plan’s management uses the following valuation techniques to measure fair value.

11

Level 1 primarily consists of financial instruments, such as overnight bank re-purchase agreements or money market mutual funds whose value is based on quoted market prices published by a financial institution, an exchange fund, exchange-traded instruments and listed equities.

Level 2 assets include pooled separate investment accounts, U.S. Government and agency securities whose valuations are based on market prices from a variety of industry-standard data providers or pricing that considers various assumptions, including time value, yield curve, volatility factors, credit spreads, default rates, loss severity, current market and contractual prices for the underlying instruments, and broker and dealer quotes. All are observable in the market or can be derived principally from or corroborated by observable market data for which the Plan is able to obtain independent external valuation information.

Level 3 consists of unobservable inputs. The Plan’s investment in Alion common stock is classified as a Level 3 asset. Assets and liabilities are considered Level 3 when their fair value inputs are unobservable or not available, including situations involving limited market activity, where determination of fair value requires significant judgment or estimation. There is no public market for Alion common stock. Thus, there are no publicly observable inputs (share prices) for transactions in Alion common stock.

In its fiduciary capacity the ESOP Trustee is independent of Alion and its management. Consistent with its fiduciary responsibilities, the ESOP Trustee retains an independent third party valuation firm to assist it in determining the fair market value (share price) at which the Plan may acquire or dispose of investments in Alion common stock as all transactions involve related parties.

The ESOP Trust holds all of Alion’s outstanding common stock. At each semi-annual valuation date, the Plan adjusts the reported value of its Alion common stock holdings to reflect their current fair value. The Plan’s management estimates the value of the Trust’s holdings based in part on information contained in the independent third-party valuation report and on the price(s) at which the Trust and the Company bought or sold shares of Alion common stock. The valuation report prepared for the Trustee includes discounted cash flow and market multiple analyses based on significant inputs and assumptions such as estimated future revenue and revenue growth; estimated future operating margins; observable market multiples for comparable companies; and a discount rate consistent with a market-based weighted average cost of capital. There was no change to the methods used to determine fair value for any period presented. The estimated fair value of the Plan’s Alion common stock holdings was $150,791,924 and $187,137,458 at September 30, 2010 and 2009. The following table sets forth by level, within the fair value hierarchy, a summary of the Plan’s investments measured at fair value on a recurring basis as of September 30, 2010:

	Level 1		Level 2		Level 3		Total
Alion Science and Technology Corporation common stock	$		$	—	$	150,791,924	$	150,791,924
Pooled separate accounts		—		115,301,685		—		115,301,685
Mutual funds		64,368,504		—		—		64,368,504
Total investments, at fair value	$	64,368,504	$	115,301,685	$	150,791,924	$	330,462,113

12

The table below sets forth a summary of changes in the fair value of Alion Science and Technology common stock (Level 3 assets) for the fiscal year ended September 30, 2010:

��
	Alion Science and
	Technology
	Common Stock
Balance as of October 1, 2009	$	187,137,458
Common stock acquired		14,123,725
Transfers and distributions		(9,338,150	)
Changes in fair value		(41,131,109	)
Balance as of September 30, 2010	$	150,791,924

5. NON PARTICIPANT-DIRECTED INVESTMENTS

Information about the net assets and the significant components of the changes in net assets relating to the non participant-directed investments as of September 30, 2010 and 2009 and for the years ended September 30, 2010 and 2009 is as follows:

	September 30,
	2010		2009
Net Assets — Alion Science and Technology Corporation common stock	$	150,791,924	$	187,137,458

	September 30,
	2010			2009			2008
Changes in Net Assets:
Contributions	$	14,059,482		$	15,018,643		$	14,681,254
Rollovers		56,968			106,915			156,340
Transfer between ESOP and Non-ESOP		(5,305,400	)		(5,882,512	)		(3,337,302	)
Interest		582			6,635			38,613
Net depreciation		(41,131,109	)		(19,357,523	)		(8,615,946	)
Benefits paid to participants		(4,014,731	)		(3,239,219	)		(3,640,787	)
Total change in net assets	$	(36,334,208	)	$	(13,347,061	)	$	(717,828	)

6. FEDERAL INCOME TAX STATUS

The IRS informed Alion by letter dated April 7, 2010, that it determined the Plan, amended and restated as of October 1, 2006, and subsequently amended on June 1, 2009, and the related trusts, are designed in accordance with applicable sections of the IRC. The Company and the Plan administrator believe the Plan is designed and is currently being operated in compliance with applicable IRC requirements and that no provision for income taxes is necessary.

13

7. RELATED-PARTY TRANSACTIONS

The Plan holds Alion Science and Technology Corporation common stock. Alion Science and Technology Corporation is the employer and plan sponsor. Any transactions in its common stock qualify as party-in-interest transactions. There were 5,658,234 shares of Alion common stock outstanding at September 30, 2010 valued at $150,791,924. There were 5,424,274 shares outstanding at September 30, 2009 valued at $187,137,458.

Certain Plan investments are shares of mutual funds and pooled separate accounts provided through Principal which is the record keeper and custodian for the non-ESOP component of the Plan. Transactions in these investments qualify as party-in-interest transactions. Investment fund earnings and losses posted to each Plan participant’s account are net of investment management fees charged by each investment fund under the Plan.

8. RISKS AND UNCERTAINTIES

The Plan provides for various investments in cash and cash equivalents, mutual funds, pooled separate accounts and Alion common stock. In general, such investment securities are exposed to various risks, such as significant world events, interest rate, credit, and overall market volatility risks. Due to the level of risk associated with certain investment securities, it is reasonably possible that changes in the values of investment securities will occur in the near term and that such changes could materially affect the amounts reported in the statements of net assets available for benefits.

9. PLAN AMENDMENTS

Plan amendment number four was adopted during the plan year ended September 30, 2010, to address a number of items cited by the IRS in its review of the Plan and related trusts as part of the determination letter process. Plan amendment three was adopted during the plan year ended September 30, 2009 to:

(1) modify the definition of “compensation” to include regular pay, sick pay, accrued vacation, military leave and other types of leave in IRC Section 415 regulations;

(2) clarify that the post-severance payments are to be made by the later of 2-1/2 months after severance from service or the last day of the plan year that includes the severance from service date; and

(3) include provisions permitting a direct rollover from the Plan into a Roth IRA.

14

ALION SCIENCE AND TECHNOLOGY CORPORATION
EMPLOYEE OWNERSHIP, SAVINGS AND INVESTMENT PLAN

Form 5500, Schedule H, Part IV, Line 4i — Schedule of Assets (Held at End of Year)

September 30, 2010

(a)	(b)	(c)	(d)	(e)
		Description of investments
		including maturity date, rate
	Identity of issue/borrower,	of interest, collateral, par, or		Current
Notes	lessor, or similar party	maturity value	Cost	value
	ESOP Component Investments Provided Through Principal:
(1)	Principal Money Market Separate Account — ESOP	Pooled Separate Account	(2)		1,896,360
(1)	Alion Science and Technology Corporation	Common stock, 5,658,234 shares	130,384,960		150,791,924
	Total ESOP and Pooled Separate Account				152,688,284
	Non-ESOP Component Investments Provided Through Principal:
(1)	Principal Money Market Separate Account	Pooled Separate Account	(2)		32,161,624
(1)	Principal Bond and Mortgage Separate Account	Pooled Separate Account	(2)		10,209,872
(1)	Principal Lifetime Strategic Income Separate Account	Pooled Separate Account	(2)		1,212,118
(1)	Principal Lifetime 2010 Separate Account	Pooled Separate Account	(2)		7,888,364
(1)	Principal Lifetime 2020 Separate Account	Pooled Separate Account	(2)		10,329,647
(1)	Principal Lifetime 2030 Separate Account	Pooled Separate Account	(2)		5,138,492
(1)	Principal Lifetime 2040 Separate Account	Pooled Separate Account	(2)		4,049,772
(1)	Principal Lifetime 2050 Separate Account	Pooled Separate Account	(2)		647,369
(1)	Alliance Bernstein Large Cap Value III Separate Account	Pooled Separate Account	(2)		5,279,181
(1)	Goldman Sachs Large Cap Blend I Separate Account	Pooled Separate Account	(2)		5,885,783
(1)	Principal Disciplined Large Cap Blend Sep Account	Pooled Separate Account	(2)		6,151,078
(1)	Principal Large Cap S&P 500 Index Separate Account	Pooled Separate Account	(2)		5,773,815
(1)	Principal Mid Cap Blend Separate Account	Pooled Separate Account	(2)		7,660,792
(1)	Principal Real Estate Securities Separate Account	Pooled Separate Account	(2)		1,790,734
(1)	Principal International Growth Separate Account	Pooled Separate Account	(2)		11,123,044
	Total Non-ESOP Pooled Separate Accounts				115,301,685
(1)	Fidelity Capital & Income Fund	Mutual Fund	(2)		11,127,220
(1)	PIMCO Total Return Institutional Fund	Mutual Fund	(2)		7,428,212
(1)	American Funds Growth Fund of America R4 Fund	Mutual Fund	(2)		12,126,702
(1)	Fidelity Contra Fund	Mutual Fund	(2)		12,625,994
(1)	Goldman Sachs Large Cap Value A Fund	Mutual Fund	(2)		1,239,667
(1)	Goldman Sachs Mid Cap Value A Fund	Mutual Fund	(2)		3,455,374
(1)	Oppenheimer Main Street Small Cap Y Fund	Mutual Fund	(2)		7,710,753
(1)	Thornburg Core Growth R5 Fund	Mutual Fund	(2)		6,299,402
(1)	Alliance Bernstein International Value A Fund	Mutual Fund	(2)		2,355,180
	Total Non-ESOP Mutual Funds				64,368,504
	Non-ESOP Participant Loans	359 loans (interest rates ranging from 3.25% to 8.25%)			2,970,238
		Grand Total		$	335,328,711

(1)	Represents party-in-interest.
(2)	Cost information omitted for participant-directed investments

See report of registered independent pubic accounting firm.

15

SIGNATURES

The Plan. Pursuant to the requirements of the Securities Exchange Act of 1934, the trustees (or other persons who administer the employee benefit plan) have duly caused this annual report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: March 28, 2011

THE ALION SCIENCE AND TECHNOLOGY CORPORATION EMPLOYEE OWNERSHIP, SAVINGS AND INVESTMENT PLAN
By:	/s/ Michael J. Alber
	Name:	Michael J. Alber
	Title:	Chief Financial Officer

16