Mantech International (MANT) 10-Q 2012 Q2 Quarterly report

Exhibit 12.1

Ratio of Earnings to Fixed Charges

The following table provides our consolidated ratios of earnings to fixed charges (in thousands except ratios):

	Six months ended June 30,		Year Ended December 31,
	2012		2011		2010		2009		2008
Fixed Charges:
Interest expense (1)	$	7,898	$	15,304	$	12,233	$	1,141	$	3,978
Amortized premiums, discounts and capitalized expenses related to indebtedness (2)	668		1,291		937		300		280
Estimate of the interest within rental expense (3)	9,162		18,396		15,957		17,128		17,791
Total Fixed Charges	$	17,728	$	34,991	$	29,127	$	18,569	$	22,049
Earnings:
Pre-tax income from continuing operations before income or loss from equity investees (4)	$	82,469	$	215,502	$	202,451	$	178,508	$	149,959
Fixed Charges	17,728		34,991		29,127		18,569		22,049
Distributed income of equity investees (4)	—		—		—		—		—
Total Earnings	$	100,197	$	250,493	$	231,578	$	197,077	$	172,008
Ratio of Earnings to Fixed Charges	5.7		7.2		8.0		10.6		7.8
(1) Interest expense consists of interest on indebtedness.
(2) Represents the amortization of financing costs incurred in connection with the Company's credit agreement and our 7.25% senior unsecured notes.
(3) The proportion of rental expense deemed to be representative of the interest factor is one third.
(4) Equity investees are investments accounted for using the equity method of accounting.