<ARTICLE> 5 <LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF OPERATIONS FOR TELOS CORPORATION AND ITS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS. </LEGEND> <CIK> 0000320121 <NAME> TELOS CORPORATION <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-START> JAN-01-1999 <PERIOD-END> JUN-30-1999 <CASH> 752,000 <SECURITIES> 0 <RECEIVABLES> 39,847,000 <ALLOWANCES> 827,000 <INVENTORY> 6,975,000 <CURRENT-ASSETS> 53,211,000 <PP&E> 38,716,000 <DEPRECIATION> 24,998,000 <TOTAL-ASSETS> 76,795,000 <CURRENT-LIABILITIES> 34,779,000 <BONDS> 44,164,000 <PREFERRED-MANDATORY> 40,192,000 <PREFERRED> 0 <COMMON> 78,000 <OTHER-SE> (53,978,000) <TOTAL-LIABILITY-AND-EQUITY> 76,795,000 <SALES> 98,460,000 <TOTAL-REVENUES> 98,460,000 <CGS> 83,881,000 <TOTAL-COSTS> 83,881,000 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 93,000 <INTEREST-EXPENSE> 3,536,000 <INCOME-PRETAX> (6,676,000) <INCOME-TAX> (1,548,000) <INCOME-CONTINUING> (5,128,000) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (5,128,000) <EPS-BASIC> 0 <EPS-DILUTED> 0