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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549



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FORM 10-Q



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(Mark One)

|x | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ---------------------------------------------------------------------------------------



For the quarterly period ended September 30, 2005



or



| ̈ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ----------------------------------------------------------------------------------------



For the transition period from  to



Commission File No. 000-49604



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ManTech International Corporation

(Exact name of registrant as specified in its charter)



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|                                                               |  |                                     
|-------------------------------------------------------------- |  | ------------------------------------
|Delaware                                                       |  | 22-1852179                          
|(State or other jurisdiction of incorporation or organization) |  | (I.R.S. Employer Identification No.)



|                                         |  |           
|---------------------------------------- |  | ----------
|12015 Lee Jackson Highway, Fairfax, VA   |  | 22033     
|(Address of principal executive offices) |  | (Zip Code)



(703) 218-6000

(Registrants telephone number, including area code)



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Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    x  Yes ̈No



Indicate by check mark whether the registrant is an accelerated filer (as defined in Rule 12b-2 of the Exchange Act).     x  Yes ̈No



Indicate by check mark whether the registrant is a shell company (as defined
in Rule 12b-2 of the Exchange Act). ̈Yes    x  No



As of
November 2, 2005, there were issued and outstanding 18,001,325 shares of our Class A Common Stock and 15,065,293 shares of our Class B Common Stock.



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##### Table of Contents

MANTECH INTERNATIONAL CORPORATION

FORM 10-Q

FOR THE QUARTER ENDED September 30, 2005

INDEX



|                              |  |                                                                                                                           |  |         
|----------------------------- |  | ------------------------------------------------------------------------------------------------------------------------- |  | --------
|                              |  |                                                                                                                           |  | Page No.
|PART I
FINANCIAL INFORMATION |  | 3                                                                                                                        
|                              |  |                                                                                                                          
|Item 1.                       |  | Financial Statements                                                                                                      |  | 3       
|                              |  |                                                                                                                          
|                              |  | Condensed Consolidated Balance Sheets at September 30, 2005 and December 31, 2004                                         |  | 3       
|                              |  |                                                                                                                          
|                              |  | Condensed Consolidated Statements of Income for the Three and Nine Months Ended September 30, 2005 and 2004               |  | 4       
|                              |  |                                                                                                                          
|                              |  | Condensed Consolidated Statements of Comprehensive Income for the Three and Nine Months Ended September 30, 2005 and 2004 |  | 5       
|                              |  |                                                                                                                          
|                              |  | Condensed Consolidated Statements of Cash Flows for the Nine Months Ended September 30, 2005 and 2004                     |  | 6       
|                              |  |                                                                                                                          
|                              |  | Notes to Condensed Consolidated Financial Statements                                                                      |  | 7       
|                              |  |                                                                                                                          
|Item 2.                       |  | Managements Discussion and Analysis of Financial Condition and Results of Operations                                     |  | 14      
|                              |  |                                                                                                                          
|Item 3.                       |  | Quantitative and Qualitative Disclosures About Market Risk                                                                |  | 21      
|                              |  |                                                                                                                          
|Item 4.                       |  | Controls and Procedures                                                                                                   |  | 21      
|                              | 
|PART II
OTHER INFORMATION    |  | 22                                                                                                                       
|                              |  |                                                                                                                          
|Item 1.                       |  | Legal Proceedings                                                                                                         |  | 22      
|                              |  |                                                                                                                          
|Item 6.                       |  | Exhibits                                                                                                                  |  | 22      



2



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##### Table of Contents

PART I  FINANCIAL INFORMATION



Item 1. Financial Statements



MANTECH INTERNATIONAL CORPORATION

CONDENSED CONSOLIDATED BALANCE SHEETS

(Dollars in Thousands)



|                                                                                                                                                                                         |  |                   |         |   |                   |   |         |  
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | ----------------- | ------- | - | ----------------- | - | ------- | -
|                                                                                                                                                                                         |  | (unaudited)       |        
|                                                                                                                                                                                         |  | September 30,2005 |         |   | December 31, 2004 |  
|ASSETS                                                                                                                                                                                   |  |                   |         |   |                   |   |         |  
|CURRENT ASSETS:                                                                                                                                                                          |  |                   |         |   |                   |   |         |  
|Cash and cash equivalents                                                                                                                                                                |  | $                 | 13,288  |   |                   | $ | 22,946  |  
|Receivablesnet                                                                                                                                                                          |  |                   | 236,011 |   |                   |   | 196,086 |  
|Prepaid expenses and other                                                                                                                                                               |  |                   | 9,534   |   |                   |   | 9,413   |  
|Assets held for sale                                                                                                                                                                     |  |                   | 8,303   |   |                   |   | 25,546  |  
|                                                                                                                                                                                         |  |                   |         |   |                   |   |         |  
|Total current assets                                                                                                                                                                     |  |                   | 267,136 |   |                   |   | 253,991 |  
|                                                                                                                                                                                         |  |                  
|Property and equipmentnet                                                                                                                                                               |  |                   | 12,049  |   |                   |   | 8,505   |  
|Goodwill                                                                                                                                                                                 |  |                   | 226,273 |   |                   |   | 153,374 |  
|Other intangiblesnet                                                                                                                                                                    |  |                   | 36,791  |   |                   |   | 23,997  |  
|Investments                                                                                                                                                                              |  |                   | 2,736   |   |                   |   | 6,011   |  
|Employee supplemental savings plan assets                                                                                                                                                |  |                   | 11,058  |   |                   |   | 12,208  |  
|Other assets                                                                                                                                                                             |  |                   | 11,007  |   |                   |   | 10,316  |  
|                                                                                                                                                                                         |  |                   |         |   |                   |   |         |  
|TOTAL ASSETS                                                                                                                                                                             |  | $                 | 567,050 |   |                   | $ | 468,402 |  
|                                                                                                                                                                                         |  |                   |         |   |                   |   |         |  
|LIABILITIES AND STOCKHOLDERS EQUITY                                                                                                                                                     |  |                   |         |   |                   |   |         |  
|CURRENT LIABILITIES:                                                                                                                                                                     |  |                   |         |   |                   |   |         |  
|Current portion of debt                                                                                                                                                                  |  | $                 | 75,082  |   |                   | $ | 25,080  |  
|Accounts payable and accrued expenses                                                                                                                                                    |  |                   | 54,340  |   |                   |   | 52,668  |  
|Accrued salaries and related expenses                                                                                                                                                    |  |                   | 39,110  |   |                   |   | 35,004  |  
|Deferred income taxescurrent                                                                                                                                                            |  |                   |        |   |                   |   | 5,937   |  
|Billings in excess of revenue earned                                                                                                                                                     |  |                   | 8,925   |   |                   |   | 5,252   |  
|Liabilities held for sale                                                                                                                                                                |  |                   | 3,040   |   |                   |   | 2,889   |  
|                                                                                                                                                                                         |  |                   |         |   |                   |   |         |  
|Total current liabilities                                                                                                                                                                |  |                   | 180,497 |   |                   |   | 126,830 |  
|                                                                                                                                                                                         |  |                  
|Debtnet of current portion                                                                                                                                                              |  |                   | 42      |   |                   |   | 104     |  
|Accrued retirement                                                                                                                                                                       |  |                   | 12,335  |   |                   |   | 13,435  |  
|Other long-term liabilities                                                                                                                                                              |  |                   | 2,879   |   |                   |   | 5,711   |  
|Deferred income taxes                                                                                                                                                                    |  |                   | 5,684   |   |                   |   | 1,743   |  
|Minority interest                                                                                                                                                                        |  |                   | 65      |   |                   |   | 56      |  
|                                                                                                                                                                                         |  |                   |         |   |                   |   |         |  
|TOTAL LIABILITIES                                                                                                                                                                        |  |                   | 201,502 |   |                   |   | 147,879 |  
|                                                                                                                                                                                         |  |                   |         |   |                   |   |         |  
|COMMITMENTS AND CONTINGENCIES                                                                                                                                                            |  |                   |         |   |                   |   |         |  
|                                                                                                                                                                                         |  |                  
|STOCKHOLDERS EQUITY:                                                                                                                                                                    |  |                   |         |   |                   |   |         |  
|Common stock, Class A$0.01 par value; 150,000,000 shares authorized; 17,958,055 and 17,418,950 shares issued and outstanding at
September 30, 2005 and December 31, 2004, respectively. |  |                   | 180     |   |                   |   | 174     |  
|Common stock, Class B$0.01 par value; 50,000,000 shares authorized; 15,065,293 and 15,065,293 shares issued and outstanding at
September 30, 2005 and December 31, 2004, respectively.  |  |                   | 151     |   |                   |   | 151     |  
|Additional paid in capital                                                                                                                                                               |  |                   | 231,231 |   |                   |   | 219,664 |  
|Retained earnings                                                                                                                                                                        |  |                   | 134,466 |   |                   |   | 100,710 |  
|Accumulated other comprehensive income                                                                                                                                                   |  |                   | 381     |   |                   |   | 205     |  
|Unearned ESOP shares                                                                                                                                                                     |  |                   | (861    | ) |                   |   | (381    | )
|Deferred compensation                                                                                                                                                                    |  |                   | 640     |   |                   |   | 640     |  
|Shares held in grantor trust                                                                                                                                                             |  |                   | (640    | ) |                   |   | (640    | )
|                                                                                                                                                                                         |  |                   |         |   |                   |   |         |  
|TOTAL STOCKHOLDERS EQUITY                                                                                                                                                               |  |                   | 365,548 |   |                   |   | 320,523 |  
|                                                                                                                                                                                         |  |                   |         |   |                   |   |         |  
|TOTAL LIABILITIES AND STOCKHOLDERS EQUITY                                                                                                                                               |  | $                 | 567,050 |   |                   | $ | 468,402 |  
|                                                                                                                                                                                         |  |                   |         |   |                   |   |         |  



See notes to condensed
consolidated financial statements.



3



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##### Table of Contents

MANTECH INTERNATIONAL CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

(Dollars in Thousands Except Per Share Amounts)



|                                                               |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|-------------------------------------------------------------- |  | ------------------------------- | ---------- | - | ------------------------------ | - | ---------- | ---- |  | - | ---------- | - |  | - | ---------- | -
|                                                               |  | (unaudited)                     |            |   | (unaudited)                    |  
|                                                               |  | Three months endedSeptember 30, |            |   | Nine months endedSeptember 30, |  
|                                                               |  | 2005                            |            |   | 2004                           |   |            | 2005 |  |   | 2004       |  
|REVENUES                                                       |  | $                               | 262,431    |   |                                | $ | 207,444    |      |  | $ | 719,300    |   |  | $ | 602,194    |  
|COST OF SERVICES                                               |  |                                 | 216,260    |   |                                |   | 170,241    |      |  |   | 592,130    |   |  |   | 492,728    |  
|                                                               |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|GROSS PROFIT                                                   |  |                                 | 46,171     |   |                                |   | 37,203     |      |  |   | 127,170    |   |  |   | 109,466    |  
|                                                               |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|COSTS AND EXPENSES:                                            |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|General and administrative                                     |  |                                 | 22,327     |   |                                |   | 18,871     |      |  |   | 62,510     |   |  |   | 54,501     |  
|Depreciation and amortization                                  |  |                                 | 2,008      |   |                                |   | 782        |      |  |   | 5,147      |   |  |   | 3,393      |  
|                                                               |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|Total costs and expenses                                       |  |                                 | 24,335     |   |                                |   | 19,653     |      |  |   | 67,657     |   |  |   | 57,894     |  
|                                                               |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|INCOME FROM CONTINUING OPERATIONS                              |  |                                 | 21,836     |   |                                |   | 17,550     |      |  |   | 59,513     |   |  |   | 51,572     |  
|Interest (expense), net                                        |  |                                 | (1,120     | ) |                                |   | (423       | )    |  |   | (1,956     | ) |  |   | (1,349     | )
|Equity in earnings of affiliates                               |  |                                 | 157        |   |                                |   | 143        |      |  |   | 435        |   |  |   | 422        |  
|Gain on disposal of an operation                               |  |                                 |           |   |                                |   |           |      |  |   | 3,698      |   |  |   |           |  
|Other income (expense), net                                    |  |                                 | (52        | ) |                                |   | 18         |      |  |   | (228       | ) |  |   | 184        |  
|                                                               |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|INCOME BEFORE PROVISION FOR INCOME TAXES AND MINORITY INTEREST |  |                                 | 20,821     |   |                                |   | 17,288     |      |  |   | 61,462     |   |  |   | 50,829     |  
|Provision for income taxes                                     |  |                                 | (7,833     | ) |                                |   | (7,061     | )    |  |   | (24,085    | ) |  |   | (20,754    | )
|Minority interest                                              |  |                                 | (3         | ) |                                |   | (2         | )    |  |   | (9         | ) |  |   | (5         | )
|                                                               |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|NET INCOME FROM CONTINUING OPERATIONS                          |  |                                 | 12,985     |   |                                |   | 10,225     |      |  |   | 37,368     |   |  |   | 30,070     |  
|Loss from discontinued operationsnet of taxes                 |  |                                 | (1,298     | ) |                                |   | (2,411     | )    |  |   | (3,612     | ) |  |   | (16,107    | )
|                                                               |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|NET INCOME                                                     |  | $                               | 11,687     |   |                                | $ | 7,814      |      |  | $ | 33,756     |   |  | $ | 13,963     |  
|                                                               |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|BASIC EARNINGS (LOSS) PER SHARE:                               |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|Net Income from continuing operations                          |  | $                               | 0.39       |   |                                | $ | 0.32       |      |  | $ | 1.14       |   |  | $ | 0.93       |  
|Loss from discontinued operationsnet of taxes                 |  |                                 | (0.04      | ) |                                |   | (0.08      | )    |  |   | (0.11      | ) |  |   | (0.50      | )
|                                                               |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|Basic earnings per share                                       |  | $                               | 0.35       |   |                                | $ | 0.24       |      |  | $ | 1.03       |   |  | $ | 0.43       |  
|                                                               |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|Weighted average common shares outstanding                     |  |                                 | 32,955,258 |   |                                |   | 32,388,777 |      |  |   | 32,753,215 |   |  |   | 32,269,784 |  
|                                                               |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|DILUTED EARNINGS (LOSS) PER SHARE:                             |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|Net Income from continuing operations                          |  | $                               | 0.39       |   |                                | $ | 0.32       |      |  | $ | 1.12       |   |  | $ | 0.93       |  
|Loss from discontinued operationsnet of taxes                 |  |                                 | (0.04      | ) |                                |   | (0.08      | )    |  |   | (0.10      | ) |  |   | (0.50      | )
|                                                               |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|Diluted earnings per share                                     |  | $                               | 0.35       |   |                                | $ | 0.24       |      |  | $ | 1.02       |   |  | $ | 0.43       |  
|                                                               |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|Weighted average common shares outstanding                     |  |                                 | 33,477,813 |   |                                |   | 32,388,777 |      |  |   | 33,221,562 |   |  |   | 32,436,648 |  
|                                                               |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  



See notes to condensed
consolidated financial statements.



4



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##### Table of Contents

MANTECH INTERNATIONAL CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Dollars in Thousands)



|                                   |  |                                 |        |   |                                |   |       |      |  |   |        |   |  |   |       
|---------------------------------- |  | ------------------------------- | ------ | - | ------------------------------ | - | ----- | ---- |  | - | ------ | - |  | - | ------
|                                   |  | (unaudited)                     |        |   | (unaudited)                   
|                                   |  | Three months endedSeptember 30, |        |   | Nine months endedSeptember 30,
|                                   |  | 2005                            |        |   | 2004                           |   |       | 2005 |  |   | 2004  
|NET INCOME                         |  | $                               | 11,687 |   |                                | $ | 7,814 |      |  | $ | 33,756 |   |  | $ | 13,963
|OTHER COMPREHENSIVE INCOME (LOSS): |  |                                 |        |   |                                |   |       |      |  |   |        |   |  |   |       
|Cash flow hedge                    |  |                                 | 134    |   |                                |   | 154   |      |  |   | 470    |   |  |   | 711   
|Translation adjustments            |  |                                 | (8     | ) |                                |   | (101  | )    |  |   | (294   | ) |  |   | 4     
|                                   |  |                                 |        |   |                                |   |       |      |  |   |        |   |  |   |       
|Total other comprehensive income   |  |                                 | 126    |   |                                |   | 53    |      |  |   | 176    |   |  |   | 715   
|                                   |  |                                 |        |   |                                |   |       |      |  |   |        |   |  |   |       
|COMPREHENSIVE INCOME               |  | $                               | 11,813 |   |                                | $ | 7,867 |      |  | $ | 33,932 |   |  | $ | 14,678
|                                   |  |                                 |        |   |                                |   |       |      |  |   |        |   |  |   |       



See notes to condensed
consolidated financial statements.



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##### Table of Contents

MANTECH INTERNATIONAL CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Dollars in Thousands)



|                                                                                                       |  |                                 |          |   |      |   |         |  
|------------------------------------------------------------------------------------------------------ |  | ------------------------------- | -------- | - | ---- | - | ------- | -
|                                                                                                       |  | (unaudited)                     |         
|                                                                                                       |  | Nine months ended September 30, |         
|                                                                                                       |  | 2005                            |          |   | 2004 |  
|CASH FLOWS FROM OPERATING ACTIVITIES:                                                                  |  |                                 |          |   |      |   |         |  
|Net income                                                                                             |  | $                               | 33,756   |   |      | $ | 13,963  |  
|Adjustments to reconcile net income to net cash used in operating activities:                          |  |                                 |          |   |      |   |         |  
|Equity in earnings of affiliates                                                                       |  |                                 | (435     | ) |      |   | (419    | )
|Increase (Decrease) in current and deferred income taxes                                               |  |                                 | (2,210   | ) |      |   | 1,430   |  
|Depreciation and amortization                                                                          |  |                                 | 6,357    |   |      |   | 4,672   |  
|Gain on disposal of an operation                                                                       |  |                                 | (3,698   | ) |      |   |        |  
|Loss from discontinued operations                                                                      |  |                                 | 3,612    |   |      |   | 16,107  |  
|Changes in assets and liabilities-net of effects from acquired, disposed, and discontinued businesses: |  |                                 |          |   |      |   |         |  
|Contract receivables                                                                                   |  |                                 | (23,587  | ) |      |   | (14,134 | )
|Prepaid expenses and other                                                                             |  |                                 | 277      |   |      |   | 6,568   |  
|Accounts payable and accrued expenses                                                                  |  |                                 | 2,940    |   |      |   | 10,630  |  
|Accrued salaries and related expenses                                                                  |  |                                 | 1,220    |   |      |   | (2,092  | )
|Billings in excess of revenue earned                                                                   |  |                                 | 3,385    |   |      |   | 4,716   |  
|Accrued retirement                                                                                     |  |                                 | (1,100   | ) |      |   | 1,332   |  
|Dividends from Vosper-ManTech Limited                                                                  |  |                                 | 357      |   |      |   | 357     |  
|Other                                                                                                  |  |                                 | 2,525    |   |      |   | (3,495  | )
|                                                                                                       |  |                                 |          |   |      |   |         |  
|Net cash flow from continuing operations                                                               |  |                                 | 23,399   |   |      |   | 39,635  |  
|Net cash flows from discontinued operations                                                            |  |                                 | 14,137   |   |      |   | (19,632 | )
|                                                                                                       |  |                                 |          |   |      |   |         |  
|Net cash flows from operating activities                                                               |  |                                 | 37,536   |   |      |   | 20,003  |  
|                                                                                                       |  |                                 |          |   |      |   |         |  
|CASH FLOWS FROM INVESTING ACTIVITIES:                                                                  |  |                                 |          |   |      |   |         |  
|Purchase of property and equipment                                                                     |  |                                 | (5,198   | ) |      |   | (3,767  | )
|Investment in capitalized software for internal use                                                    |  |                                 | (1,144   | ) |      |   | (110    | )
|Proceeds from sales of property and equipment                                                          |  |                                 |         |   |      |   | 1       |  
|Acquisition of businesses, net of cash acquired                                                        |  |                                 | (106,638 | ) |      |   | (10,969 | )
|Proceeds from disposal of an operation                                                                 |  |                                 | 7,000    |   |      |   |        |  
|                                                                                                       |  |                                 |          |   |      |   |         |  
|Net investing cash flow from continuing operations                                                     |  |                                 | (105,980 | ) |      |   | (14,845 | )
|Net investing cash flow from discontinued operations                                                   |  |                                 | (355     | ) |      |   | (364    | )
|                                                                                                       |  |                                 |          |   |      |   |         |  
|Net cash flows from investing activities                                                               |  |                                 | (106,335 | ) |      |   | (15,209 | )
|                                                                                                       |  |                                 |          |   |      |   |         |  
|CASH FLOWS FROM FINANCING ACTIVITIES:                                                                  |  |                                 |          |   |      |   |         |  
|Proceeds from exercise of stock options                                                                |  |                                 | 9,201    |   |      |   | 3,245   |  
|Repayment of debt                                                                                      |  |                                 | (60      | ) |      |   | (182    | )
|Net increase in borrowings under lines of credit                                                       |  |                                 | 50,000   |   |      |   |        |  
|                                                                                                       |  |                                 |          |   |      |   |         |  
|Net cash flows from financing activities                                                               |  |                                 | 59,141   |   |      |   | 3,063   |  
|                                                                                                       |  |                                 |          |   |      |   |         |  
|NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS                                                   |  |                                 | (9,658   | ) |      |   | 7,857   |  
|CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD                                                         |  |                                 | 22,946   |   |      |   | 9,166   |  
|                                                                                                       |  |                                 |          |   |      |   |         |  
|CASH AND CASH EQUIVALENTS, END OF PERIOD                                                               |  | $                               | 13,288   |   |      | $ | 17,023  |  
|                                                                                                       |  |                                 |          |   |      |   |         |  
|SUPPLEMENTAL CASH FLOW INFORMATION:                                                                    |  |                                 |          |   |      |   |         |  
|Cash paid for income taxes                                                                             |  | $                               | 23,777   |   |      | $ | 14,168  |  
|                                                                                                       |  |                                 |          |   |      |   |         |  
|Cash paid for interest                                                                                 |  | $                               | 2,478    |   |      | $ | 1,924   |  
|                                                                                                       |  |                                 |          |   |      |   |         |  
|Non-cash financing activities:                                                                         |  |                                 |          |   |      |   |         |  
|ESOP contributions                                                                                     |  | $                               | 481      |   |      | $ | 1,403   |  
|                                                                                                       |  |                                 |          |   |      |   |         |  



See notes to condensed
consolidated financial statements.



6



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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

September 30, 2005

(Dollars in thousands, except per share amounts or where otherwise noted)

UNAUDITED



1.
Introduction and Overview



ManTech International Corporation (depending on
the circumstances, ManTech we our ours or us) is a leading provider of innovative technologies and solutions for mission-critical national security programs for the Intelligence Community
and the Departments of Defense, State, Homeland Security, Justice and other federal government agencies. Our expertise includes systems engineering, systems integration, software development, enterprise security architecture, information assurance,
intelligence operations support, network and critical infrastructure protection, information technology, communications integration and engineering support. With approximately 6,000 qualified employees, we operate in the United States and 38
countries worldwide.



2. Basis of Presentation



The accompanying unaudited condensed consolidated financial statements have been prepared
pursuant to the rules and regulations of the Securities and Exchange Commission (SEC). Certain information and note disclosures normally included in the annual financial statements, prepared in accordance with accounting principles generally
accepted in the United States of America, have been condensed or omitted pursuant to those rules and regulations. We recommend that you read these unaudited condensed consolidated financial statements in conjunction with the financial statements and
related notes included in our annual report on Form 10-K for the fiscal year ended December 31, 2004, previously filed with the SEC. We believe that the unaudited condensed consolidated financial statements in this Form 10-Q reflect all
adjustments that are necessary to fairly present the financial position, results of operations and cash flows for the interim periods. We have adjusted the December 31, 2004 Condensed Consolidated Balance Sheet and related notes, as well as the
September 30, 2004 Condensed Consolidated Statement of Income and Condensed Consolidated Statement of Cash Flow, to reflect the reclassification of the ManTech MSM Security Services, Inc. (MSM) as discontinued operations, net of applicable
income taxes. The results of operations for such interim periods are not necessarily indicative of the results that can be expected for the full year.



Stock-Based CompensationAs permitted under Statement of Financial Accounting Standards (SFAS) No. 123,Accounting for Stock-Based
Compensation, we account for our stock-based compensation plan using the intrinsic value method under the recognition and measurement principles of Accounting Principles Board (APB) Opinion No. 25,Accounting for Stock Issued to
Employees, and related interpretations. For the quarters ended September 30, 2005 and 2004, we recognized pre-tax compensation expense of approximately $6 and $14, respectively. No compensation cost was recognized for issuances under the
plan in the quarter ended September 30, 2005, and the exercise price of all other options granted pursuant to the plan was not less than 100% of the fair market value of the shares on the date of grant. In accordance with the provisions of SFAS
No. 148,Accounting for Stock-Based Compensation  Transition and Disclosure, the following table illustrates the effect on net income and earnings per share had we applied the fair value recognition provisions of SFAS No. 123
to stock-based employee compensation.



|                                                                                                                                            |  |                                 |        |   |                                |   |       |      |  |   |        |   |  |   |        |  
|------------------------------------------------------------------------------------------------------------------------------------------- |  | ------------------------------- | ------ | - | ------------------------------ | - | ----- | ---- |  | - | ------ | - |  | - | ------ | -
|                                                                                                                                            |  | Three Months EndedSeptember 30, |        |   | Nine Months EndedSeptember 30, |  
|                                                                                                                                            |  | 2005                            |        |   | 2004                           |   |       | 2005 |  |   | 2004   |  
|Net income, as reported                                                                                                                     |  | $                               | 11,687 |   |                                | $ | 7,814 |      |  | $ | 33,756 |   |  | $ | 13,963 |  
|Add: stock-based compensation, included in net income as reported, net of related tax effects                                               |  |                                 | 4      |   |                                |   | 9     |      |  |   | 13     |   |  |   | 26     |  
|Deduct: Total stock-based employee compensation expense determined under fair value based method for all awards, net of related tax
effects |  |                                 | (710   | ) |                                |   | (657  | )    |  |   | (2,226 | ) |  |   | (1,971 | )
|                                                                                                                                            |  |                                 |        |   |                                |   |       |      |  |   |        |   |  |   |        |  
|Pro forma net income                                                                                                                        |  | $                               | 10,981 |   |                                | $ | 7,166 |      |  | $ | 31,543 |   |  | $ | 12,018 |  
|                                                                                                                                            |  |                                 |        |   |                                |   |       |      |  |   |        |   |  |   |        |  
|Earnings per share:                                                                                                                         |  |                                 |        |   |                                |   |       |      |  |   |        |   |  |   |        |  
|Basic  as reported                                                                                                                         |  | $                               | 0.35   |   |                                | $ | 0.24  |      |  | $ | 1.03   |   |  | $ | 0.43   |  
|Basic  pro forma                                                                                                                           |  | $                               | 0.33   |   |                                | $ | 0.22  |      |  | $ | 0.96   |   |  | $ | 0.37   |  
|Diluted  as reported                                                                                                                       |  | $                               | 0.35   |   |                                | $ | 0.24  |      |  | $ | 1.02   |   |  | $ | 0.43   |  
|Diluted  pro forma                                                                                                                         |  | $                               | 0.33   |   |                                | $ | 0.22  |      |  | $ | 0.95   |   |  | $ | 0.37   |  



7



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##### Table of Contents

We typically issue options that vest in three equal installments, beginning on the first anniversary of the date of
grant. The options typically expire 10 years after the date of grant. For disclosure purposes, the fair value of each option is estimated on the date of grant using the Black-Scholes option-pricing model. The following weighted-average assumptions
were used for option grants during the three months ended September 30, 2005 and 2004, respectively: dividend yield of zero percent; expected volatility of 43.2% and 44.0%; expected average lives of three years; and average risk-free interest
rates of 3.89% and 2.89%.



3. Earnings per Share



Basic earnings per share has been computed by dividing net income by the weighted average
number of common shares outstanding during each period. Shares issued during the period and shares re-acquired during the period, if any, are weighted for the portion of the period for which they were outstanding. Diluted earnings per share have
been computed in a manner consistent with that of basic earnings per share, while giving effect to all potentially dilutive common shares that were outstanding during each period. The weighted average number of common shares outstanding is computed
as follows:



|                                                   |  |                                  |  |                                 |  |            |  |           
|-------------------------------------------------- |  | -------------------------------- |  | ------------------------------- |  | ---------- |  | ----------
|                                                   |  | Three Months Ended September 30, |  | Nine Months Ended September 30,
|                                                   |  | 2005                             |  | 2004                            |  | 2005       |  | 2004      
|Basic weighted average common shares outstanding   |  | 32,955,258                       |  | 32,388,777                      |  | 32,753,215 |  | 32,269,784
|Effect of potential exercise of stock options      |  | 522,555                          |  |                                |  | 468,347    |  | 166,864   
|                                                   |  |                                  |  |                                 |  |            |  |           
|Diluted weighted average common shares outstanding |  | 33,477,813                       |  | 32,388,777                      |  | 33,221,562 |  | 32,436,648
|                                                   |  |                                  |  |                                 |  |            |  |           



For the three months ended
September 30, 2005 and September 30, 2004, options, weighted for the portion of the period for which they were outstanding, to purchase 1,304 and 1,941,475 shares, respectively, were outstanding but not included in the computation of
diluted earnings per share because the options exercise prices were greater than the average market price of the common shares and, therefore, the effect would have been anti-dilutive. For the nine months ended September 30, 2005 and
September 30, 2004, shares issued from the exercise of stock options were 523,607 and 198,085, respectively.



4. Goodwill and Other Intangibles



Effective January 1, 2002, we adopted SFAS No. 142,Goodwill and Other Intangible Assets. SFAS 142 requires, among other things, the discontinuance of
goodwill amortization. Under SFAS 142, goodwill is to be reviewed at least annually for impairment; we have elected to perform this review annually during the second quarter each calendar year. These reviews resulted in no adjustments in goodwill.



In February 2005, we classified our ManTech MSM Security Services, Inc. (MSM)
subsidiary as discontinued (refer to Note 10: Discontinued Operations). As required under SFAS No. 144- Accounting for the Impairment or Disposal of Long-Lived Assets, we have reclassified assets of MSM as Assets Held for Sale
for all periods presented. Goodwill and other intangibles, net of accumulated amortization for MSM totaled $3.5 million as of September 30, 2005 and $3.3 million as of December 31, 2004. On February 11, 2005, we sold our Mantech
Environmental Technology, Inc (METI) subsidiary (refer to Note 11: Gain on Disposal of an Operation). For the period ended December 31, 2004, we had $1.4 million in Goodwill associated with METI. On May 31, 2005, we completed the
acquisition of 100 percent of outstanding shares of Gray Hawk Systems, Inc. (refer to Note 8: Acquisitions). For the period ended September 30, 2005, goodwill and other intangibles for Gray Hawk Systems, Inc. totaled $89.6 million.



The components of goodwill and other intangibles are as
follows:



|                               |  |                   |         |   |                  |   |         |  
|------------------------------ |  | ----------------- | ------- | - | ---------------- | - | ------- | -
|                               |  | September 30,2005 |         |   | December 31,2004 |  
|Goodwill                       |  | $                 | 236,379 |   |                  | $ | 163,481 |  
|Other intangibles              |  |                   | 57,938  |   |                  |   | 41,219  |  
|                               |  |                   |         |   |                  |   |         |  
|Less: Accumulated amortization |  |                   | (31,253 | ) |                  |   | (27,329 | )
|                               |  |                   |         |   |                  |   |         |  
|                               |  | $                 | 263,064 |   |                  | $ | 177,371 |  
|                               |  |                   |         |   |                  |   |         |  



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##### Table of Contents

|                                           |  |                    |        |                         |   |            |  |   |       
|------------------------------------------ |  | ------------------ | ------ | ----------------------- | - | ---------- |  | - | ------
|                                           |  | September 30, 2005
|                                           |  | Amount             |        | AccumulatedAmortization |   | Net Amount
|Amortizable intangible assets:             |  |                    |        |                         |   |            |  |   |       
|Contract rights                            |  | $                  | 37,357 |                         | $ | 9,148      |  | $ | 28,209
|Capitalized software cost for sale         |  |                    | 12,072 |                         |   | 8,105      |  |   | 3,967 
|Capitalized software cost for internal use |  |                    | 8,509  |                         |   | 3,894      |  |   | 4,615 
|                                           |  |                    |        |                         |   |            |  |   |       
|                                           |  | $                  | 57,938 |                         | $ | 21,147     |  | $ | 36,791
|                                           |  |                    |        |                         |   |            |  |   |       



Aggregated amortization expense for
the nine months ended September 30, 2005 and 2004 was $3,984 and $2,817, respectively. We estimate that we will have the following amortization expense for the future periods indicated below:



|                                                        |  |   |      
|------------------------------------------------------- |  | - | -----
|For the remaining three months ending December 31, 2005 |  | $ | 1,804
|For the years ending:                                   |  |   |      
|December 31, 2006                                       |  |   | 6,140
|December 31, 2007                                       |  |   | 4,676
|December 31, 2008                                       |  |   | 3,934
|December 31, 2009                                       |  |   | 3,468
|December 31, 2010                                       |  |   | 3,049



5. Business Segment and Geographic
Area Information



We operate as one segment, delivering a broad array of
information technology and technical services solutions under contracts with the U.S. government, state and local governments, and commercial customers. Our federal government customers typically exercise independent contracting authority, and even
offices or divisions within an agency or department may directly, or through a prime contractor, use our services as a separate customer so long as that customer has independent decision-making and contracting authority within its organization. Our
customer, the U.S. Army Communications-Electronic Command Headquarters (CECOM-HQ) accounted for 19.4% and 14.6% of our revenues for the nine months ended September 30, 2005 and 2004, respectively. For the three months ended September 30,
2005 and September 30, 2004, CECOM-HQ accounted for 21.3% and 15.6% of our revenues, respectively. At September 30, 2005 and December 31, 2004, one customer, CECOM-HQ, accounted for 18.1% and 9.6% of our accounts receivable,
respectively. In addition, there were no sales to any customers within a single country (except for the United States) where the sales accounted for 10% or more of total revenue. We treat sales to U.S. government customers as sales within the United
States regardless of where the services are performed. Substantially all assets of continuing operations were held in the United States for the periods ended September 30, 2005 and 2004. Revenues by geographic customer and the related
percentages of total revenues for the period ended September 30, 2005 and 2004 were as follows:



|              |  |                                  |         |   |                                 |   |         |      |  |   |         |   |  |   |         |  
|------------- |  | -------------------------------- | ------- | - | ------------------------------- | - | ------- | ---- |  | - | ------- | - |  | - | ------- | -
|              |  | Three Months Ended September 30, |         |   | Nine Months Ended September 30, |  
|              |  | 2005                             |         |   | 2004                            |   |         | 2005 |  |   | 2004    |  
|United States |  | $                                | 260,605 |   |                                 | $ | 205,390 |      |  | $ | 715,494 |   |  | $ | 599,024 |  
|International |  |                                  | 1,826   |   |                                 |   | 2,054   |      |  |   | 3,806   |   |  |   | 3,170   |  
|              |  |                                  |         |   |                                 |   |         |      |  |   |         |   |  |   |         |  
|              |  | $                                | 262,431 |   |                                 | $ | 207,444 |      |  | $ | 719,300 |   |  | $ | 602,194 |  
|              |  |                                  |         |   |                                 |   |         |      |  |   |         |   |  |   |         |  
|United States |  |                                  | 99.3    | % |                                 |   | 99.0    | %    |  |   | 99.5    | % |  |   | 99.5    | %
|International |  |                                  | 0.7     | % |                                 |   | 1.0     | %    |  |   | 0.5     | % |  |   | 0.5     | %
|              |  |                                  |         |   |                                 |   |         |      |  |   |         |   |  |   |         |  
|              |  |                                  | 100.0   | % |                                 |   | 100.0   | %    |  |   | 100.0   | % |  |   | 100.00  | %
|              |  |                                  |         |   |                                 |   |         |      |  |   |         |   |  |   |         |  



In February 2005, we reached a final
corporate determination that we would exit the personnel security investigation (PSI) services business and discontinue operations at the MSM subsidiary. Please refer to Note 10: Discontinued Operations for more details related to this
determination.



9



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##### Table of Contents

6. Revenues and Receivables



We deliver a broad array of information technology and technical services solutions under contracts with the U.S. government, state and
local governments, and commercial customers. Revenues from the U.S. government under prime contracts and subcontracts were approximately 98.2% and 98.2% of our total revenue for the periods ended September 30, 2005 and 2004, respectively. The
components of contract receivables are as follows:



|                                                                   |  |                   |         |   |                  |   |         |  
|------------------------------------------------------------------ |  | ----------------- | ------- | - | ---------------- | - | ------- | -
|                                                                   |  | September 30,2005 |         |   | December 31,2004 |  
|Billed receivables                                                 |  | $                 | 207,145 |   |                  | $ | 161,457 |  
|Unbilled receivables:                                              |  |                   |         |   |                  |   |         |  
|Amounts currently billable                                         |  |                   | 22,406  |   |                  |   | 17,190  |  
|Revenues in excess of milestone billings on fixed price contracts  |  |                   | 4,457   |   |                  |   | 5,645   |  
|Indirect costs in excess of provisional billing rates              |  |                   | 865     |   |                  |   | 4,983   |  
|Revenues recorded in excess of estimated contract value or funding |  |                   | 2,475   |   |                  |   | 6,278   |  
|Retainages                                                         |  |                   | 3,501   |   |                  |   | 4,440   |  
|Allowance for doubtful accounts                                    |  |                   | (4,838  | ) |                  |   | (3,907  | )
|                                                                   |  |                   |         |   |                  |   |         |  
|                                                                   |  | $                 | 236,011 |   |                  | $ | 196,086 |  
|                                                                   |  |                   |         |   |                  |   |         |  



Amounts currently billable consist
principally of amounts to be billed within the next month. Revenues recorded in excess of milestone billings on fixed-price contracts consist of amounts not expected to be billed within the next month. Indirect costs incurred in excess of
provisional billing rates on U.S. government contracts are generally billable at actual rates less a reduction of 0.5% of the actual general and administrative rate base before a Defense Contract Audit Agency (DCAA) audit is completed. The balance
remaining, as well as any retainage, is billable upon completion of the DCAA audit. Revenues recorded in excess of estimated contract value or funding are billable upon receipt of contractual amendments or other modifications. At September 30,
2005, the amount of receivables that we expect to collect after one year is $5.9 million.



7. Commitments and Contingencies



Payments to us on cost-reimbursable contracts with the U.S. government are provisional payments subject to adjustment upon audit by the DCAA. The cost audits result in the negotiation and determination of final indirect cost rates that we
may use for the period(s) audited. The final rates, if different from provisional rates, may create an additional receivable or liability for ManTech. The majority of audits through 2003 have been completed and resulted in no material adjustments.
The audits for 2004 and the remaining audits for 2003 and 2002 are not expected to have a material effect on the results of future operations.



From time to time, we are involved in litigation, claims, and disputes that arise in the ordinary course of business. In addition, we are subject to audit, review, and
investigations by various agencies of the U.S. government to determine compliance with applicable federal statutes and regulations. While we cannot predict the ultimate outcome of legal proceedings, government audits, investigations, claims, and
disputes to which we are or may be subject, we currently believe, based upon information available to us as of the date of filing, that any ultimate liability arising out of these matters will not have a material adverse effect on our financial
position, results of operations, or cash flows.



8. Acquisitions



Gray Hawk Systems, Inc. - On May 31,
2005, we completed the acquisition of 100 percent of outstanding shares of Gray Hawk Systems, Inc. (Gray Hawk). Gray Hawk provides a broad range of intelligence-related services to the homeland security, law enforcement, Intelligence
Community and the Department of Defense markets. The acquisition was consummated pursuant to an Agreement and Plan of Merger, dated May 3, 2005, which provided for the merger of a wholly owned subsidiary of ManTech with and into Gray Hawk, with
Gray Hawk surviving the merger and becoming a wholly owned subsidiary of ManTech (ManTech Gray Hawk).



We believe the Gray Hawk acquisition further solidifies our position as a supplier of services in the high-end intelligence market. It expands our presence in homeland
security related missions and compliments our high-end offerings for the intelligence community and Department of Defense. Gray Hawks capabilities round-out ManTechs skills in the end-to-end, intelligence information processing cycle,
and give ManTech access to new markets in national defense agencies, which we believe will become increasingly important as the Intelligence Reform Act of 2004 continues to unfold.



The purchase price for the Merger was $101.6 million in cash, which included transaction costs of $0.1 million. The purchase price included
the full payment of Gray Hawk outstanding debt, repurchase of employee stock options by Gray Hawk, transaction costs and other related transaction expenses. Pursuant to the Merger Agreement, and as security for the Gray Hawk shareholders
indemnification obligations, an escrow in an amount equal to 10% of the adjusted purchase price has been



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established for a period of one year following the closing of the Merger, which is to be used to satisfy certain indemnification obligations of the
shareholders of Gray Hawk. Assuming we continue to produce adequate levels of taxable income, the full amount of goodwill, $73.9 million, will be deducted for tax purposes over 15 years.



Preliminary Purchase Price Allocation



The acquisition has been accounted for as a business combination. Under business combination accounting, the total preliminary purchase price was allocated to Gray
Hawks net tangible and identifiable intangible assets based on their estimated fair values as of May 31, 2005, as set forth below. The excess of the purchase price over the net tangible and identifiable intangible assets, as determined by
a third party valuation firm, was recorded as goodwill. The preliminary allocation of the purchase price previously disclosed has been updated to reflect audit adjustments, which were not material, to the May 31, 2005 closing balance sheet. The
aspect of the purchase price allocation which is not yet finalized relates to Gray Hawk shareholders indemnification obligations.



|                                          |  |   |         |  
|----------------------------------------- |  | - | ------- | -
|Cash                                      |  | $ | 608     |  
|Accounts receivable                       |  |   | 18,584  |  
|Prepaid expenses and other current assets |  |   | 455     |  
|Fixed assets                              |  |   | 799     |  
|Other assets                              |  |   | 284     |  
|Intangible assets                         |  |   | 15,650  |  
|Goodwill                                  |  |   | 73,914  |  
|Accounts payable                          |  |   | (4,345  | )
|Payroll liabilities                       |  |   | (3,576  | )
|Deferred tax liability                    |  |   | (214    | )
|Billings in excess of revenue earned      |  |   | (321    | )
|Other liabilities                         |  |   | (190    | )
|                                          |  |   |         |  
|Total preliminary purchase price          |  | $ | 101,648 |  
|                                          |  |   |         |  



Intangible Assets



In allocating the purchase price, we considered, among other factors, our intention for
future use of acquired assets, analyses of historical financial performance and estimates of future performance of Gray Hawks contracts. Our fair value of intangible assets was based, in part, on a valuation completed by independent appraisers
using an income approach and estimates and assumptions provided by management. The following table sets forth the components of intangible assets associated with the acquisition at May 31, 2005:



|                       |  |                       |        |                       |         
|---------------------- |  | --------------------- | ------ | --------------------- | --------
|                       |  | Preliminary FairValue |        | Estimated Useful Life
|Backlog                |  | $                     | 5,450  |                       | 6 years 
|Customer Relationships |  | $                     | 7,200  |                       | 20 years
|Intellectual Property  |  | $                     | 3,000  |                       | 7 years 
|                       |  |                       |        |                       |         
|Total                  |  | $                     | 15,650 |                       |         
|                       |  |                       |        |                       |         



Customer contracts and related
relationships represent the underlying relationships and agreements with Gray Hawks existing customers. Intangible assets are being amortized using the straight-line method.



Pre-Acquisition Contingencies



We have not identified any material pre-acquisition contingencies where a liability is probable and the amount of the liability can be reasonably estimated. If
information becomes available to us prior to the end of the purchase price allocation period, which would indicate that it is probable that such events had occurred and the amounts can be reasonably estimated, such items will be included in the
purchase price allocation.



Pro Forma Financial Information



The unaudited financial information in the table below summarizes the combined results of
operations of ManTech and Gray Hawk, on a pro forma basis, as though the companies had been combined as of the beginning of each of the periods presented. The pro forma financial information is presented for informational purposes only and is not
indicative of the results of operations that would have been achieved if the Acquisition and borrowings under our Credit Agreement (see Note 9) had taken place at the



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beginning of each of the periods presented. The pro forma financial information for the nine months ended September 30, 2005 excludes third party
expenses of $0.5 million, severance and bonus of $2.2 million, and a stock option repurchase of $7.4 million recorded by Gray Hawk in their historical statements of operations related to our Agreement and Plan of Merger dated May 3, 2005.
The pro forma financial information for all periods presented also includes the business combination accounting effect on historical ManTech for amortization charges from acquired intangible assets, interest expense at our current level of debt, and
the related tax effects.



The unaudited pro forma financial information for the
nine months ended September 30, 2005, and 2004 combines the historical results for ManTech and Gray Hawk for those periods. The three months ended September 30, 2005 are as reported.



|                                      |  |                                  |         |                                 |   |         |  |      |         |  |   |        
|------------------------------------- |  | -------------------------------- | ------- | ------------------------------- | - | ------- |  | ---- | ------- |  | - | -------
|                                      |  | Three Months Ended September 30, |         | Nine Months Ended September 30,
|                                      |  | 2005 (a)                         |         | 2004                            |   | 2005    |  | 2004
|Revenue                               |  | $                                | 262,431 |                                 | $ | 225,163 |  | $    | 750,255 |  | $ | 655,742
|Net income from continuing operations |  | $                                | 12,985  |                                 | $ | 10,316  |  | $    | 37,334  |  | $ | 30,367 
|Net income                            |  | $                                | 11,687  |                                 | $ | 7,905   |  | $    | 33,722  |  | $ | 14,260 
|Diluted earnings per share            |  | $                                | 0.35    |                                 | $ | 0.24    |  | $    | 1.02    |  | $ | 0.44   

---

|(a) | As reported
|--- | -----------



Acquisition of Certain Assets from Affiliated Computer Services, Inc. (ACS)  On February 8, 2004, ManTech acquired certain operations from ACS, a provider of systems engineering, network
administration, program management, and communications systems support to Department of Defense customers for $6.5 million. The assets acquired from ACS include contracts for providing support to the U.S. Air Force Electronic Systems Centers
Information Technology Services Program. Services provided through these contracts include information technology services, such as program management, systems engineering, network engineering and administration, test and evaluation, and data
management.



On June 1, 2004, we acquired additional assets from ACS for
$1.5 million. The assets acquired from ACS include contracts for providing support to North Atlantic Treaty Organization (NATO).



The following table summarizes the estimated fair value of the assets acquired at the date of acquisition, based on an independent appraisal. No liabilities were assumed.



|                  |  |                |       |      |   |      
|----------------- |  | -------------- | ----- | ---- | - | -----
|                  |  | U.S. Air Force |       | NATO
|Goodwill          |  | $              | 4,500 |      | $ | 500  
|Intangible assets |  |                | 2,000 |      |   | 1,000
|                  |  |                |       |      |   |      
|Total             |  | $              | 6,500 |      | $ | 1,500
|                  |  |                |       |      |   |      



9. Debt



On February 25, 2004, we executed an Amended and Restated Credit and Security Agreement
with Citizens Bank of Pennsylvania, KeyBank National Association, Branch Banking and Trust Company of Virginia, Chevy Chase Bank, F.S.B., and Riggs Bank, N.A. in order to increase the capacity available under our prior loan agreement. The agreement
initially provides for a $125 million credit facility that can be increased to $200 million. The maturity date of the agreement is February 25, 2009. Under the agreement, we are required to maintain specified financial covenants relating to
asset coverage, fixed charge coverage, and debt coverage. The agreement also places limitations on additional borrowings, mergers, and related-party transactions, payment of dividends, and contains limitations with respect to capital expenditures.
Borrowings under the agreement are collateralized by our assets and bear interest at the London Inter-Bank Offer Rate (LIBOR), or the lenders base rate, plus market-rate spreads that are determined based on a company leverage ratio
calculation. As of September 30, 2005, we were in compliance with all covenants under the credit facility.



We had $75.0 million and $25.0 million outstanding on our credit facility at September 30, 2005 and December 31, 2004, respectively. The maximum available
borrowing under the credit facility at September 30, 2005 was $45.8 million. As of September 30, 2005, we were contingently liable under letters of credit totaling $4.2 million, which reduces our availability to borrow under our credit
facility.



|10. | Discontinued Operations
|--- | -----------------------



The Condensed Consolidated Financial Statements and related footnote disclosures reflect the ManTech MSM Security Services, Inc. (MSM) subsidiary as discontinued
operations, net of applicable income taxes, for all periods presented in accordance with Statement of Financial Accounting Standards No. 144  Accounting for the Impairment or Disposal of Long-Lived Assets.



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In February 2005, we reached a final corporate determination to exit the personnel security investigation (PSI) services
business and discontinue operations at our MSM subsidiary. We reached the determination to sell our MSM subsidiary after we concluded that the MSM business no longer furthered our long-term strategic objectives. Currently, we intend to sell MSM as a
going-concern and are in discussions with potential buyers. We expect to complete the sale or other disposition of the MSM operations by the end of the second quarter 2006. Based upon the information currently available to us, we do not expect MSM
will be sold at a loss; therefore, no loss accrual was recorded at September 30, 2005.



The following discloses the results of the discontinued operations of MSM for the three and nine months ended September 30, 2005 and 2004:



|                  |  |                                 |        |   |                                |   |        |      |  |   |        |   |  |   |         |  
|----------------- |  | ------------------------------- | ------ | - | ------------------------------ | - | ------ | ---- |  | - | ------ | - |  | - | ------- | -
|                  |  | Three Months EndedSeptember 30, |        |   | Nine Months EndedSeptember 30, |  
|                  |  | 2005                            |        |   | 2004                           |   |        | 2005 |  |   | 2004   |  
|Revenue           |  | $                               | 1,570  |   |                                | $ | 3,817  |      |  | $ | 5,173  |   |  | $ | 10,417  |  
|Loss before taxes |  | $                               | (1,902 | ) |                                | $ | (4,068 | )    |  | $ | (5,759 | ) |  | $ | (27,176 | )
|Net Loss          |  | $                               | (1,167 | ) |                                | $ | (2,411 | )    |  | $ | (3,481 | ) |  | $ | (16,107 | )



The following is a summary of the
assets and liabilities held for sale related to MSM at September 30, 2005 and December 31, 2004:



|                                      |  |                   |       |                  |   |       
|------------------------------------- |  | ----------------- | ----- | ---------------- | - | ------
|                                      |  | September 30,2005 |       | December 31,2004
|Receivables, net                      |  | $                 | 2,118 |                  | $ | 19,671
|Prepaid expenses and other            |  |                   | 63    |                  |   | 111   
|Goodwill and other intangibles        |  |                   | 3,514 |                  |   | 3,283 
|Property and equipment                |  |                   | 783   |                  |   | 855   
|Other assets                          |  |                   | 1,221 |                  |   | 820   
|                                      |  |                   |       |                  |   |       
|Total Assets                          |  | $                 | 7,699 |                  | $ | 24,740
|                                      |  |                   |       |                  |   |       
|Accounts payable and accrued expenses |  | $                 | 342   |                  | $ | 927   
|Accrued salaries and related expenses |  |                   | 667   |                  |   | 1,080 
|Deferred income taxes                 |  |                   |      |                  |   | 83    
|Billings in excess of revenue earned  |  |                   | 1,713 |                  |   | 292   
|Other liabilities                     |  |                   | 52    |                  |   | 82    
|                                      |  |                   |       |                  |   |       
|Total Liabilities                     |  | $                 | 2,774 |                  | $ | 2,464 
|                                      |  |                   |       |                  |   |       



|11. | Gain on Disposal of an Operation
|--- | --------------------------------



On February 11, 2005, we sold our Mantech Environmental Technology, Inc (METI) subsidiary to another company, Alion Science and Technology Corporation.
METI performs professional services including research and development in the fields of environmental and life sciences for the Environmental Protection Agency, the National Cancer Institute, the U.S. Air Force, and other federal government
agencies. The financial terms of the arrangement included an all cash payment of $7 million, which resulted in a pre-tax gain of approximately $3.7 million, net of selling costs, in the first quarter of 2005. After the sale, we continue to provide
professional services in the environmental area for various federal government agencies.



The following discloses the results of METI for the three and nine months ended September 30, 2005 and 2004 (METIs results for 2005 are through February 11th):



|                    |  |                                 |   |                                |   |       |  |      |       |  |   |      
|------------------- |  | ------------------------------- | - | ------------------------------ | - | ----- |  | ---- | ----- |  | - | -----
|                    |  | Three Months EndedSeptember 30, |   | Nine months EndedSeptember 30,
|                    |  | 2005                            |   | 2004                           |   | 2005  |  | 2004
|Revenue             |  | $                               | 0 |                                | $ | 3,305 |  | $    | 1,379 |  | $ | 9,822
|Income before taxes |  | $                               | 0 |                                | $ | 212   |  | $    | 55    |  | $ | 448  
|Net Income          |  | $                               | 0 |                                | $ | 126   |  | $    | 34    |  | $ | 266  



Total
assets and liabilities were $3.9 million and $1.0 million, respectively, for METI at December 31, 2004.



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Item 2. Managements Discussion and Analysis of Financial Condition and Results of Operations



Introduction and Overview



We are a leading provider of innovative technologies and solutions for mission-critical national security programs for the Intelligence Community and the
Departments of Defense, State, Homeland Security, Justice and other federal government customers. Our expertise includes systems engineering, systems integration, software development, enterprise security architecture, information assurance,
intelligence operations support, network and critical infrastructure protection, information technology, communications integration and engineering support. With approximately 6,000 highly-qualified employees, we operate in the United States and 38
countries worldwide.



We derive revenue primarily from
contracts with U.S. government agencies that are focused on national security. As a result, funding for our programs and services are generally linked to trends in U.S. government spending in the areas of defense, intelligence and homeland security.
Leading up to and following the terrorist events of September 11, 2001, including the wars in Afghanistan and Iraq, the U.S. government substantially increased its overall defense, intelligence and homeland security budgets. Hence, our focus on
national security corresponds with our customers objective to safeguard the nation. Our business has also benefited from the U.S. governments increased need for specialized support of ongoing and mission-critical operations, due in part
to the growing complexity of technology.



Three Months Ended
September 30, 2005 Compared to the Three Months Ended September 30, 2004



We experienced an increase in revenue in the third quarter of 2005, compared to the third quarter of 2004, due to an increase in our defense system support for activities in Iraq, Afghanistan, Europe and the United
States and the overall increased spending for national and homeland security, as well as our prior acquisitions.



Revenues



Revenues increased 26.5% to $262.4 million for the three months ended September 30, 2005, compared to $207.4 million for the same period in 2004.
This increase is partially attributable to forward deployment support in Iraq and Afghanistan and increased work in the Intelligence Community. Revenue increased approximately $23.7 million from our customer the U.S. Army Communications-Electronic
Command Headquarters (CECOM-HQ) which accounted for 21.3% and 15.6% of our revenues for the three months ended September 30, 2005 and September 30, 2004, respectively. Also contributing to the increase was a full quarter of revenues from
our acquisition of certain operations from Gray Hawk Systems, Inc. (Gray Hawk) on May 31, 2005. We anticipate that quarterly revenues will continue near this level largely because of the United States continuing focus on national
security and its efforts in the war on terrorism, and full quarters of revenue from Gray Hawk. Gray Hawk accounted for $22.6 million of our increase in revenue for the quarter.



Cost of services



Cost of services includes direct costs incurred to provide our services and solutions to customers. These costs are primarily made up of direct labor,
which includes salaries and wages plus associated fringe benefit costs of our employees working directly to serve our customers, and applicable overhead costs. Costs of services also include other direct costs, which are made up of material
purchases and subcontractors, provided to the customer as an overall solution. Variability in our mix of labor and other direct costs provided under our contracts can result in fluctuations in our contract margins. Since we typically earn higher
profits on our own labor services, we expect the ratio of cost of services as a percentage of revenue to decrease when our labor services mix increases relative to other direct costs. Conversely, as other direct costs increase relative to our direct
labor costs, we expect the ratio of cost of services as a percentage of revenue to increase.



Cost of services increased 27.0% to $216.3 million for the three months ended September 30, 2005, compared to $170.2 million for the same period in 2004. This increase was attributable primarily to the
corresponding increase in revenue. As a percentage of revenues, cost of services increased 0.3%, to 82.4% for the three months ended September 30, 2005, compared to 82.1% for the same period in 2004. Direct labor costs increased by 18.8%
primarily due to an increase in employee headcount as a result of the addition of Gray Hawk and the continued growth of our business. As a percentage of revenues, direct labor costs decreased 3.1% to 47.6% for the three months ended
September 30, 2005 compared to 50.7% for the same period in 2004. For the three months ended September 30, 2005, other direct costs increased by 40.4% over third quarter 2004, from $65.1 million to $91.4 million. As a percentage of
revenues, other direct costs increased from 31.4% for the three months ended September 30, 2004 to 34.8% for the same period in 2005. This increase was due to larger purchases of equipment and equipment upgrades and the use of subcontractors in
support of contracts.



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Gross profit



Gross profit increased 24.1% to $46.2million for the three months ended September 30, 2005, compared to $37.2 million for the same period in 2004.
Gross profit margin was 17.6% for the three months ended September 30, 2005, compared to 17.9% for the same period in 2004. The decrease in gross profit margin is due to a less profitable mix of other direct costs including subcontractors and
material purchases causing cost of services to increase as a percentage of revenue.



General and administrative



General and
administrative expenses increased 18.3% to $22.3 million for the three months ended September 30, 2005, compared to $18.9 million for the same period in 2004. The increased expense primarily relates to our acquisition of Gray Hawk and an
increase in bid and proposal spending. As a percentage of revenues, general and administrative expenses decreased to 8.5% from 9.1% for the three months ended September 30, 2005 and 2004, respectively.



Depreciation and amortization



Depreciation and amortization expense increased 156.8% to $2.0 million for
the three months ended September 30, 2005, compared to $0.8 million for the same period in 2004. The increase resulted from additional amortization of intangibles from the Gray Hawk acquisition and additional amortization of facility
improvements to support our workforce. In addition, the third quarter 2004 contained a favorable adjustment related to a final valuation of intangibles from a previous acquisition of $0.7 million.



Income from continuing operations



Income from continuing operations increased 24.4% to $21.8 million for the
three months ended September 30, 2005, compared with $17.6 million for the same period in 2004. This increase was primarily a result of increased revenues and gross profits; and decreased general and administrative spending as a percentage of
revenues offset by increased pass-through sales and amortization expense. Operating margin decreased to 8.3% for the nine months ended September 30, 2005 from 8.5% for the same period in 2004. The decrease in margin is primarily due to a less
favorable mix of direct labor and subcontractor or pass through sales.



Interest Expense, net



Interest expense, net
increased 164.8% to $1.1 million for the three months ended September 30, 2005, compared with $0.4 million for the same period in 2004. The increase in interest expense is a result of increased borrowing under our credit facility in the second
quarter to finance our acquisition of Gray Hawk and higher interest rates. The average levels of indebtedness were approximately $81.0 million and $31.8 million, in the three months ended September 30, 2005 and 2004, respectively. We expect
interest expense, net to remain at higher levels throughout fiscal year 2005, as compared to the same periods in 2004.



Other Income (Expense)



Other income for the third quarter of 2005 consisted primarily of income from an investment in a joint venture accounted for under the equity method,
offset by foreign currency conversion losses for the period. Other income in the third quarter of 2004 consisted of comparable investment income from a joint venture and foreign currency gains.



Net income



Net income increased 49.6% to $11.7 million for the three months ended September 30, 2005, compared to $7.8 million for
the same period in 2004. The increase is a result of higher revenue, increased income from continuing operations, a reduced loss on discontinued operations of ($1.3) million in 2005 versus a loss of ($2.4) million for the same period in 2004. The
results from discontinued operations are primarily due to our MSM subsidiary that was categorized as discontinued during the first quarter of 2005, as discussed in Discontinued Operations below. Our effective tax rate for the three
months ended September 30, 2005 and 2004 was 37.6% and 40.9%, respectively.



Nine months Ended September 30, 2005 Compared to Nine Months Ended September 30, 2004



Revenues



Revenues increased 19.5% to $719.3 million for the nine months ended September 30, 2005, compared to $602.2 million for the same period in 2004. This
increase is partially attributable to forward deployment support in Iraq and Afghanistan and increased work in the Intelligence Community. Revenue increased approximately $51.7 million from our customer the U.S. Army Communications-Electronic
Command Headquarters (CECOM-HQ) which accounted for 19.4% and 14.6% of our revenues for the nine months ended September 30, 2005 and September 30, 2004 respectively. Also contributing to the increase was three full quarters of revenues
from certain operations we acquired from Affiliated Computer Services, Inc. (ACS) on February 27, 2004 and June 1, 2004. Over $30.2 million of the increase in revenue is attributable to our acquisition of Gray Hawk on May 31, 2005.



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Cost of services



Cost of services increased 20.2% to $592.1 million for the nine months ended September 30, 2005, compared to $492.7 million for the same period in
2004. This increase was largely attributable to the corresponding increases in revenue. As a percentage of revenues, cost of services increased from 81.8% to 82.3%, or 0.5% of revenue. For the nine months ended September 30, 2005, other direct
costs increased by 26.7% over the first nine months of 2004, from $193.9 million to $245.5 million. This increase was attributable to an increase in pass-through costs in 2005 over 2004, full three quarters of results from costs incurred on
contracts purchased from ACS as well as the addition of Gray Hawk in the second quarter 2005. As a percentage of revenues, other direct costs increased to 34.1% for the nine months ended September 30, 2005 from 32.2% for the same period in
2004. Direct labor costs increased by 16.0% primarily due to an increase in employee headcount as a result of the addition of Gray Hawk and the continued growth of our business. As a percentage of revenue, direct labor costs decreased 1.4% to 48.2%
for the three months ended September 30, 2005 compared to 49.6% for the same period in 2004.



Gross profit



Gross
profit increased 16.2% to $127.2 million for the nine months ended September 30, 2005, compared to $109.5 million for the same period in 2004. The increase in gross profit can be attributed to the growth of our business through recent
acquisitions as well as expansion with our existing contract base. Gross profit margin decreased to 17.7% for the nine months ended September 30, 2005, compared to 18.2% for the same period in 2004. The decrease in gross profit margin is due to
a less profitable mix of direct labor and other direct costs including subcontractors and material purchases partially offset by a reduction, as a percentage of revenue, in direct labor and overhead costs.



General and administrative



General and administrative expenses increased 14.7% to $62.5 million for the
nine months ended September 30, 2005, compared to $54.5 million for the same period in 2004, which is less then the growth of revenue for the same period. The increased expenses reflect additional management personnel and infrastructure,
increased bid and proposal efforts, and expenses related to our acquisitions to support the continued growth of our business. As a percentage of revenues, general and administrative expenses decreased to 8.7% for the nine months ended
September 30, 2005 from 9.1% for the same period in 2004.



Depreciation
and amortization



Depreciation and amortization expense
increased 51.7% to $5.1 million for the nine months ended September 30, 2005, compared to $3.4 million for the same period in 2004. The increase resulted from additional amortization of intangibles from the Gray Hawk acquisition and facility
improvements to support our workforce. In addition, the third quarter 2004 contained a favorable amortization adjustment related to a final valuation of intangibles from a previous acquisition of $0.7 million.



Income from continuingoperations



Income from continuing operations increased 15.4% to $59.5 million for the
nine months ended September 30, 2005, compared with $51.6 million for the same period in 2004. Operating margin decreased to 8.3% for the nine months ended September 30, 2005 from 8.6% for the same period in 2004. The decrease in
margin is primarily due to a less favorable mix of direct labor and subcontractor or pass through sales.



Interest Expense, net



Interest expense, net increased 45.0% to $2.0 million for the nine months ended September 30, 2005, compared with $1.3 million for the same period in 2004. The increase in interest expense is a result of increased borrowing under our
credit facility in the second quarter to finance our acquisition of Gray Hawk and higher interest rates. We expect interest expense, net to remain at higher levels throughout fiscal year 2005, as compared to the same periods in 2004.



Gain on Disposal of an Operation



On February 11, 2005, we sold our Mantech Environmental Technology, Inc
(METI) subsidiary to Alion Science and Technology Corporation. The sale generated a pre-tax gain of $3.7 million in 2005. For additional information see Gain on Disposal of an Operation, below.



Net income



Net income increased 141.8% to $33.8 million for the nine months ended September 30, 2005, compared to $14.0 million
for the same period in 2004. The increase is a result of higher revenue, increased income from continuing operations, a reduced loss



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on discontinued operations of ($3.6) million in 2005 versus a loss of ($16.1) million for the same period in 2004, and a $3.7 million gain on the sale of
METI. Discontinued operations for the period ended September 30, 2004 contained a pre-tax adjustment for a change in estimate for revenue earned of $13.2 million plus a pre-tax estimated contract loss of $4.7 million on our Defense Security
Services contract. The results from discontinued operations are primarily due to our MSM subsidiary that was categorized as discontinued during the first quarter of 2005, as discussed in Discontinued Operations below. Our effective tax
rate for the nine months ended September 30, 2005 and September 30, 2004 was 39.2% and 40.8%, respectively.



Backlog



At September 30, 2005 and December 31, 2004, our backlog was $1.9 billion and $1.6 billion, respectively, of which $439 million and $444 million, respectively, was funded backlog. At September 30, 2004,
our backlog was $1.5 billion, of which $453 million was funded backlog. During the quarter ended September 30, 2005, we won a large classified contract with an estimated value of $210 million, thereby contributing to the increase in backlog for
the quarter. Backlog and funded backlog represent estimates that we calculate on a consistent basis. Additional information on how we determine backlog is included in our annual report on Form 10-K for the fiscal year ended December 31, 2004,
previously filed with the SEC.



Effects of Inflation



Generally, we have been able to price our contracts in a manner to
accommodate the effect of inflation experienced in recent years. Our cost plus contracts automatically adjust for changes in cost. Under our time and material contracts, labor rates are typically adjusted annually. Under our fixed-price contracts,
we have escalation factors built into our pricing. We generally have not been adversely affected by inflation.



Liquidity and Capital Resources



Our primary liquidity needs are the financing of working capital, capital expenditures, and acquisitions. Our primary source of liquidity is cash provided by operations and our $125 million revolving credit facility. At September 30,
2005, we had outstanding loans of $75.0 million under the credit facility. Generally, cash provided by operating activities is adequate to fund our operations. We maintain a $25.0 million outstanding loan balance, related to our interest rate swap
agreements, which has a fixed rate of 6.83%. The borrowing above the $25.0 million and cash on hand were used to finance the acquisition of Gray Hawk on May 31, 2005. In the future, we may borrow greater amounts in order to finance acquisitions
or to fund major new contract start ups.



Net cash flows from operating
activities



Cash provided by operating activities for the
nine months ended September 30, 2005 was $37.5 million, compared to a $20.0 million provided by operating activities for the nine months ended September 30, 2004. In the nine months ended September 30, 2005, cash provided by operating
activities was primarily the result of $33.8 million in net income, an increase in accounts payable and other accrued expenses of $2.9 million, a $1.2 million increase in accrued salaries, offset by an increase in contract receivables of $23.6
million. Net cash inflow of $14.1 million from our discontinued operations was due primarily to collections on our Defense Security Services contract and was a significant increase over the first nine months in 2004, which used cash of $19.6
million.



Net cash flows from investing activities



Cash used in investing activities was $106.3 million for the nine months
ended September 30, 2005, compared to a use of $15.2 million for the same period in 2004. Investing activities in the first nine months of 2005 included the acquisition of Gray Hawk for $101.6 million, a $5.6 million payment for an earnout on a
prior years acquisition, and purchases of property, plant, and equipment of $5.2 million, offset by $7.0 million in proceeds for the sale of METI. Property and equipment includes the purchase of office buildings and land for $2.0 million.
Investing activities have primarily consisted of investments in intellectual property, acquisitions of businesses, and purchases of property and equipment. In the future, we expect to continue with selective acquisitions that are consistent with our
strategic plan for growth.



Net cash flows from financing activities



Cash provided by financing activities was $59.1 million
for the nine months ended September 30, 2005, compared to cash provided by financing activities of $3.1 million for the nine months ended September 30, 2004. The net cash provided in the first nine months of 2005 resulted primarily from an
increase in our borrowings of $50.0 million and proceeds from the exercise of stock options of $9.2 million. The cash provided by financing activities was primarily used for our acquisition of Gray Hawk. The net cash provided in the first nine
months of 2004 resulted primarily from proceeds from the exercise of stock options and an increase in our borrowing to support the acquisition of ACS.



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Credit Agreement



On February 25, 2004, we executed an Amended and Restated Credit and Security Agreement with Citizens Bank of Pennsylvania, KeyBank National
Association, Branch Banking and Trust Company of Virginia, Chevy Chase Bank, F.S.B., and Riggs Bank, N.A., in order to increase the capacity available under our prior loan agreement. The agreement initially provides for a $125.0 million credit
facility that can be increased to $200.0 million. The maturity date of the agreement is February 25, 2009. Under the agreement, we are required to maintain specified financial covenants relating to asset coverage, fixed charge coverage, and
debt coverage. The agreement also places limitations on additional borrowings, mergers, and related-party transactions, payment of dividends, and contains limitations with respect to capital expenditures. Borrowings under the agreement are
collateralized by our assets and bear interest at the London Interbank Offered Rate (LIBOR), or the lenders base rate, plus market-rate spreads that are determined based on a company leverage ratio calculation. To manage our exposure to the
fluctuations in these variable interest rates, we executed an interest swap in December 2001. The swap agreement has a notional principal amount of $25.0 million and currently has a fixed rate of 6.83%. As of September 30, 2005, we were in
compliance with all material covenants under the credit facility.



We believe the capital resources available to us under our credit facility and cash from our operations are adequate to fund our ongoing operations and to support the internal growth we expect to achieve for at least the next twelve months.
We anticipate financing our external growth from acquisitions and our longer-term internal growth through one or more of the following sources: cash from operations; additional borrowing; issuance of equity; use of the credit facility; or a
refinancing of our credit facility.



Gain on Disposal of an
Operation



On February 11, 2005, we sold
our METI subsidiary to another company, Alion Science and Technology Corporation. METI performs research and development in the fields of environmental and life sciences for the Environmental Protection Agency, the National Cancer Institute, the
U.S. Air Force, and other federal government agencies. The financial terms of the arrangement included an all cash payment of $7 million, which resulted in a pre-tax gain of approximately $3.7 million net of selling cost in 2005. Although we have
sold METI, we continue to provide professional services in the environmental area for various federal government agencies.



Discontinued Operations



In February 2005, we reached the final corporate determination that we would exit the personnel security investigation (PSI) services business and
discontinue operations at our ManTech MSM Security Services, Inc. subsidiary (MSM). We reached the determination to sell our MSM subsidiary after we concluded that the MSM business no longer furthered our long-term strategic objectives. Currently,
we intend to sell MSM as a going-concern. We expect to complete the sale or other disposition of the MSM operations by the end of the second quarter 2006. Based upon the information currently available to us, we do not expect MSM will be sold at a
loss; therefore, no loss accrual was recorded at September 30, 2005.



Contractual Obligations



The following tables
are in thousands.



|                               |  |                                                |         |                 |   |          |  |          |        |               |   |        |  |   |       
|------------------------------ |  | ---------------------------------------------- | ------- | --------------- | - | -------- |  | -------- | ------ | ------------- | - | ------ |  | - | ------
|                               |  | Payments Due by Period from September 30, 2005
|Contractual Obligations        |  | Total                                          |         | Less Than1 Year |   | 1-3Years |  | 4-5Years |        | After 5 Years
|Long-term debt obligations (1) |  | $                                              | 75,124  |                 | $ | 75,082   |  | $        | 42     |               | $ |        |  | $ |       
|Operating lease obligations    |  | $                                              | 82,974  |                 | $ | 18,474   |  | $        | 28,319 |               | $ | 17,587 |  | $ | 18,594
|Other long-term obligations    |  | $                                              |         |                 | $ |          |  | $        |        |               | $ |        |  | $ |       
|                               |  |                                                |         |                 |   |          |  |          |        |               |   |        |  |   |       
|Total                          |  | $                                              | 158,098 |                 | $ | 93,556   |  | $        | 28,361 |               | $ | 17,587 |  | $ | 18,594
|                               |  |                                                |         |                 |   |          |  |          |        |               |   |        |  |   |       

---

|(1) | We expect to utilize our credit facility to meet our debt obligations in future periods. See footnote 9 in the Companys consolidated financial statements.
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------



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|                             |  |                                                                    |       |                 |   |          |  |          |     |              |   |     |  |   |   
|---------------------------- |  | ------------------------------------------------------------------ | ----- | --------------- | - | -------- |  | -------- | --- | ------------ | - | --- |  | - | --
|                             |  | Amount of Commitment Expiration Per Period from September 30, 2005
|Other Commercial Commitments |  | Total AmountsCommitted                                             |       | Less Than1 Year |   | 1-3Years |  | 4-5Years |     | After5 Years
|Standby Letters of Credit    |  | $                                                                  | 4,172 |                 | $ | 4,084    |  | $        | 11  |              | $ | 0   |  | $ | 77
|Guarantees                   |  | $                                                                  | 579   |                 | $ | 134      |  | $        | 277 |              | $ | 168 |  | $ | 0 
|Other commercial commitments |  | $                                                                  |       |                 | $ |          |  | $        |     |              | $ |     |  | $ |   
|                             |  |                                                                    |       |                 |   |          |  |          |     |              |   |     |  |   |   
|Total                        |  | $                                                                  | 4,751 |                 | $ | 4,218    |  | $        | 288 |              | $ | 168 |  | $ | 77
|                             |  |                                                                    |       |                 |   |          |  |          |     |              |   |     |  |   |   



Critical Accounting Estimates and Policies



Critical accounting policies are defined as those that are reflective of significant judgments and uncertainties, and potentially result in materially different results under different assumptions and conditions. Application of these
policies is particularly important to the portrayal of our financial condition and results of operations. The discussion and analysis of our financial condition and results of operations are based on our consolidated financial statements, which have
been prepared in accordance with accounting principles generally accepted in the United States. The preparation of these consolidated financial statements requires management to make estimates and judgments that affect the reported amount of assets,
liabilities, revenues and expenses. Actual results may differ from these estimates under different assumptions or conditions. Our significant accounting policies, including the critical policies listed below, are described in the notes to the
condensed consolidated financial statements included in this report.



Revenue Recognition and Cost Estimation



We recognize revenue when persuasive evidence of an arrangement exists, services have been rendered, the contract price is fixed or determinable, and the ability to collect is reasonably assured. We have a standard
internal process that we use to determine whether all required criteria for revenue recognition have been met.



Our revenues consist primarily of payments for the work of our employees, and to a lesser extent, the pass through of costs for materials and subcontract
efforts under contracts with our customers. Cost of services consists primarily of compensation expenses for program personnel, the fringe benefits associated with this compensation, and other direct expenses incurred to complete programs, including
cost of materials and subcontract efforts.



We derive the
majority of our revenues from cost-plus-fixed-fee, cost-plus-award-fee, firm-fixed-price, or time-and-materials contracts. Revenues for cost-reimbursement contracts are recorded as reimbursable costs are incurred, including a pro-rata share of the
contractual fees. For time-and-material contracts, revenue is recognized to the extent of billable rates times hours delivered plus material and other reimbursable costs incurred. For long-term fixed-price production contracts, revenue is recognized
at a rate per unit as the units are delivered, or by other methods to measure services provided. Revenue from other long-term fixed-price contracts is recognized ratably over the contract period or by other appropriate methods to measure services
provided. Contract costs are expensed as incurred except for certain limited long-term contracts noted below. For long-term contracts which are specifically described in the scope section of American Institute of Certified Public Accountants
(AICPA) Statement of Position (SOP) No. 81-1, Accounting for Performance of Construction Type and Certain Production-Type Contracts, or other appropriate accounting literature we apply the percentage of
completion method. Under the percentage of completion method, income is recognized at a consistent profit margin over the period of performance based on estimated profit margins at completion of the contract. This method of accounting requires
estimating the total revenues and total contract cost at completion of the contract. During the performance of long-term contracts, these estimates are periodically reviewed and revisions are made as required. The impact on revenue and contract
profit as a result of these revisions is included in the periods in which the revisions are made. This method can result in the deferral of costs or the deferral of profit on these contracts. Because we assume the risk of performing a fixed-price
contract at a set price, the failure to accurately estimate ultimate costs or to control costs during performance of the work could result, and in some instances has resulted, in reduced profits or losses for such contracts. Estimated losses on
contracts at completion are recognized when identified. In certain circumstances, revenues are recognized when contract amendments have not been finalized.



Goodwill



Goodwill represents the excess of cost over the fair value of net tangible and identifiable intangible assets of acquired companies. Effective
January 1, 2002, we adopted Statement of Financial Accounting Standards (SFAS) No. 142, and no longer amortize goodwill; rather, we review goodwill at least annually for impairment. We have elected to perform this review annually during
second quarter of each calendar year and have determined no adjustments are necessary at this time. For acquisitions completed prior to the adoption of SFAS No. 141 and SFAS No. 142 on January 1, 2002, goodwill was amortized on a
straight-line basis over periods ranging from two to twenty years.



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Other Matters



Our significant accounting policies, including the critical policies listed above, are described in the notes to the consolidated financial statements for
the year ended December 31, 2004, included in our Annual Report on Form 10-K filed with the SEC on March 16, 2005.



Accounting Pronouncements



In December 2004, the Financial Accounting Standards Board (FASB) issued SFAS No. 123(R)Share-Based Payment, which replaces SFAS
No. 123Accounting for Stock-Based Compensation, and supersedes APB Opinion No. 25Accounting for Stock Issued to Employees. SFAS No.123(R) requires compensation costs related to share-based payment transactions to
be recognized in the financial statements. With limited exceptions, the amount of compensation cost is measured based on the grant-date fair value of the equity or liability instruments issued. SFAS No. 123(R) requires liability awards to be
re-measured each reporting period and compensation costs to be recognized over the period that an employee provides service in exchange for the award. SFAS No. 123(R) is effective as of the beginning of the first fiscal year that begins after
September 15, 2005. We plan to adopt the provisions of SFAS No. 123(R) beginning January 1, 2006. We will adopt the modified prospective transition method for reporting. The impact of the adoption of SFAS 123(R) cannot be predicted at
this time because it will depend on levels of shared-based payments granted in the future. SFAS 123(R) also requires the benefits of tax deductions in excess of recognized compensation cost to be reported as a financing cash flow, rather than as an
operating cash flow as required under current literature. This requirement will reduce net operating cash flows and increase net financing cash flows in periods after adoption.



Forward-Looking Statements



This Quarterly Report on Form 10-Q contains forward-looking statements that involve substantial risks and uncertainties, many of which are outside of our
control. ManTech believes these statements to be within the definition of the Private Securities Litigation Reform Act of 1995. You can identify these statements by forward-looking words such as may, will, expect,
intend, anticipate, believe, estimate, continue and other similar words. You should read statements that contain these words carefully because they discuss our future expectations, make
projections of our future results of operations or financial condition or state other forward-looking information.



Although forward-looking statements in this Quarterly Report reflect the good faith judgment of management, such statements can only be based on facts and
factors currently known by us. Consequently, forward-looking statements are inherently subject to risks and uncertainties, and actual results and outcomes may differ materially from the results and outcomes discussed in or anticipated by the
forward-looking statements. We believe that it is important to communicate our future expectations to our investors. However, there may be events in the future that we are not able to predict accurately or control. Factors that could cause actual
results to differ materially from the results we anticipate include, but are not limited to, the following:



| |  |  | adverse changes in U.S. government spending priorities;
| | - |  | -------------------------------------------------------



| |  |  | failure to retain existing U.S. government contracts, win new contracts or win recompetes;
| | - |  | ------------------------------------------------------------------------------------------



| |  |  | uncertainties specifically related to discontinued operations, including our ability to sell or dispose of our MSM operations on terms that are favorable to us, or at all;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | adverse results of U.S. government audits of our government contracts;
| | - |  | ----------------------------------------------------------------------



| |  |  | adverse changes in our mix of contract types;
| | - |  | ---------------------------------------------



| |  |  | additional risks and costs associated with complying with new laws and regulations relating to corporate governance issues;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------



| |  |  | risk of contract performance or termination;
| | - |  | --------------------------------------------



| |  |  | failure to obtain option awards, task orders or funding under contracts;
| | - |  | ------------------------------------------------------------------------



| |  |  | failure to successfully integrate recently acquired companies or businesses into our operations or to realize any accretive or synergistic effects from such acquisitions;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | failure to identify, execute or effectively integrate future acquisitions;
| | - |  | --------------------------------------------------------------------------



| |  |  | risks associated with complex U.S. government procurement laws and regulations; and
| | - |  | -----------------------------------------------------------------------------------



| |  |  | competition.
| | - |  | ------------



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We urge you not to place undue reliance on these forward-looking statements, which speak only as of the
date of this Quarterly Report. These and other risk factors are more fully described and discussed in our Annual Report on Form 10-K, filed with the SEC on March 16, 2005, and from time to time, in our other filings with the SEC. We undertake
no obligation to revise or update any forward-looking statements in order to reflect any event or circumstance that may arise after the date of this Quarterly Report. We also suggest that you carefully review and consider the various disclosures
made in this Quarterly Report that attempt to advise interested parties of the risks and factors that may affect our business, financial condition, results of operations and prospects.



Item 3. Quantitative and Qualitative Disclosure about Market Risk



Our exposure to market risk relates to changes in interest rates for borrowings under our senior term loan and revolving credit facility. These borrowings
bear interest at variable rates. As of September 30, 2005, we had $75.0 million in borrowings outstanding under our revolving credit facility. A hypothetical 10% increase in interest rates would have increased our interest expense for the three
months ended September 30, 2005 by less than $0.4 million.



In December 2001, we entered into an interest swap agreement in order to reduce our exposure associated with the market volatility of fixed London Inter-Bank Offer Rate (LIBOR) interest rates. This agreement has a notional principal amount
of $25.0 million and, as of September 30, 2005, had a rate of 3.7%. This agreement is a hedge against revolving debt of $25.0 million, which bears interest at monthly floating LIBOR plus 1.00%. At stated monthly intervals the difference between
the interest on the floating LIBOR-based debt and the interest calculated in the swap agreement are settled in cash. The value of the swap at September 30, 2005 was a negative $0.2 million.



We do not use derivative financial instruments for speculative or trading
purposes. We invest our excess cash in short-term, investment grade, interest-bearing securities. Our investments are made in accordance with an investment policy approved by the board of directors. Under this policy, no investment securities can
have maturities exceeding one year, and the average maturity of the portfolio cannot exceed 90 days.



Item 4. Controls and Procedures



As of September 30, 2005, under the supervision and with the participation of our Chief Executive Officer and Chief Financial Officer (our principal executive officer and principal financial officer, respectively), management evaluated
the effectiveness of the design and operation of our disclosure controls and procedures pursuant to Rule 13a-15 of the Exchange Act. Based upon this evaluation, the Chief Executive Officer and Chief Financial Officer have concluded that our
disclosure controls and procedures were effective, as of September 30, 2005, such that the information relating to us that is required to be disclosed in our reports filed with the SEC (i) is recorded, processed, summarized and reported
within the time periods specified in SEC rules and forms, and (ii) is accumulated and communicated to management, including our principal executive officer and principal financial officer, as appropriate to allow timely decisions regarding
required disclosure.



There were no changes in our internal
control over financial reporting during the three months ended September 30, 2005 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.



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PART II  OTHER INFORMATION



Item 1. Legal Proceedings



We are subject to certain legal proceedings, government audits, investigations, claims and disputes that arise in the ordinary course of our business. Like most large government defense contractors, our contract costs are audited and
reviewed on a continual basis by an in-house staff of auditors from the Defense Contract Auditing Agency. In addition to these routine audits, we are subject from time to time to audits and investigations by other agencies of the federal government.
These audits and investigations are conducted to determine if our performance and administration of our government contracts are compliant with contractual requirements and applicable federal statutes and regulations. An audit or investigation may
result in a finding that our performance, systems and administration is compliant or, alternatively, may result in the government initiating proceedings against us or our employees, including administrative proceedings seeking repayment of monies,
suspension and/or debarment from doing business with the federal government or a particular agency, or civil or criminal proceedings seeking penalties and/or fines. Audits and investigations conducted by the federal government frequently span
several years.



Although we cannot predict the outcome of these
and other legal proceedings, investigations, claims and disputes, based on the information now available to us, we do not believe the ultimate resolution of these matters, either individually or in the aggregate, will have a material adverse effect
on our business, prospects, financial condition or operating results.



Item 6. Exhibits



Exhibits required by Item 601 of Regulation S-K:



|            |  |                                                                                                                                                    
|----------- |  | ---------------------------------------------------------------------------------------------------------------------------------------------------
|Exhibit No. |  | Description                                                                                                                                        
|31.1 *      |  | Certification of Chief Executive Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended.                            
|            | 
|31.2 *      |  | Certification of Chief Financial Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended.                            
|            | 
|32 *        |  | Certification of Chief Executive Officer and Chief Financial Officer pursuant to Rule 13a-14(b) of the Securities Exchange Act of 1934, as amended.

---

|* | Filed herewith
|- | --------------



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SIGNATURES



Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned,
thereunto duly authorized.



|                       |  |                                   |  |                                                               
|---------------------- |  | --------------------------------- |  | --------------------------------------------------------------
|                       |  | MANTECH INTERNATIONAL CORPORATION
|                       |  |                                  
|Date: November 7, 2005 |  | By:                               |  | /s/ GEORGE J. PEDERSEN                                        
|                       |  | Name:                             |  | George J. Pedersen                                            
|                       |  | Title:                            |  | Chairman of the Board of Directors and Chief Executive Officer
|                       |  |                                  
|Date: November 7, 2005 |  | By:                               |  | /s/ KEVIN M. PHILLIPS                                         
|                       |  | Name:                             |  | Kevin M. Phillips                                             
|                       |  | Title:                            |  | Chief Financial Officer                                       



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