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    2015 Top 100

    We rank the largest government contractors by their prime contract dollars in IT, systems integrations, telecommunications, engineering and professional services.

    For our analysis of the 2015 Top 100, click here.

    See our slideshow on the Top 100.

    Register for the Top 100 webcast.

    MARKET VALUATION (AS OF DEC. 31, 2014)
    2015 Company Valuation ($MM)
    70 Microsoft $382,881
    81 General Electric $253,766
    11 Verizon Communications $194,124
    14 AT&T INC. $174,231
    20 IBM Corp. $158,781
    27 United Technologies Corp. $104,841
    3 Boeing Co. $92,667
    42 Honeywell International $78,218
    6 Hewlett-Packard Co. $73,602
    1 Lockheed Martin $60,491
    17 Accenture $56,098
    5 General Dynamics $45,606
    4 Raytheon $33,356
    2 Northrop Grumman $29,773
    19 BAE Systems $23,194
    37 CenturyLink Inc. $22,589
    29 CGI Group $11,923
    41 Rockwell Collins $11,231
    15 L-3 Communications $10,745
    24 Fluor $9,472
    97 Ball Corp. $9,334
    10 Computer Sciences Corp. $8,858
    9 Harris Corp. $7,512
    22 Jacobs Engineering Group $5,835
    53 DRS Technologies $5,413
    18 AECOM Technology Corp. $4,672
    7 Booz Allen Hamilton $3,921
    57 Maximus $3,612
    16 Leidos Inc. $3,223
    87 ViaSat $2,953
    8 Science Applications International Corp. $2,263
    12 CACI International $2,051
    58 Tetra Tech Inc. $1,672
    39 Unisys Corp. $1,472
    77 Cubic Corp. $1,414
    32 Serco North America $1,349
    28 ManTech International $1,127
    54 ICF International $795
    13 Engility Corp. $753
    45 Vectrus Inc. $287
    65 NCI Inc. $132
    FPDS-NG, USASpending, Houlihan Lokey and Washington Technology.

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