2018 Top 100

We rank the largest government contractors based on their fiscal 2017 prime contracts in IT, systems integration, professional services and telecommunications.

Read our analysis of the 2018 Top 100.

See our profile of the new No. 1 company, General Dynamics.

We look back at 25 years of Top 100s.

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PRIVATELY HELD COMPANIES
2018 Company Contracts 2017
6 Boeing Co. $5,339,648,000 4
8 Perspecta, formerly DXC public sector, Vencore and Keypoint $2,952,017,000 10
12 PAE $2,092,124,000 15
19 Chemonics International $1,613,328,000 28
23 Deloitte LLP $1,421,248,000 20
28 The Aerospace Corp. $948,145,000 29
31 General Atomics Technologies Corp. $798,154,000 36
32 Dell Technologies $782,502,000 34
33 Alion Science & Technology $764,911,000 32
34 Peraton $740,285,000 17
36 Sierra Nevada Corp. $651,816,000 38
38 Carahsoft Technology Corp. $644,388,000 40
39 Arctic Slope Regional Corp. $590,650,000 37
42 Mythics Inc. $531,488,000 45
43 S&K Aerospace $521,489,000
45 DynCorp International $503,579,000
46 SpaceX $482,117,000 54
48 Iron Bow Technologies $462,625,000 49
49 World Wide Technology $439,952,000 41
50 Parsons Corp. $416,752,000 50
51 PricewaterhouseCoopers (to be renamed after acquistion by Veritas) $390,199,000 72
54 FCN Inc. $373,781,000 67
55 RTI International $355,313,000 44
59 Battelle Memorial Institute $346,381,000 58
60 DLT Solutions $346,240,000 55
61 Torch Technologies $342,715,000 68
62 Actionet Inc. $332,315,000 57
64 Development Alternatives Inc. $330,556,000 59
65 Salient CRGT $327,841,000 71
66 Abt Associates $311,250,000 66
67 Westat Inc. $296,848,000 61
68 Smartronix $295,369,000 85
69 immixGroup $295,064,000 73
70 Red River Computer Co. $294,245,000 63
73 Four Points Technology $287,251,000 83
74 KPMG $284,551,000 77
75 NCI Inc. $276,252,000 64
77 Sterling Computers Corp. $259,817,000 91
80 Colsa Corp. $251,365,000 92
83 Government Acquisitions $235,132,000 100
84 Adams Communication & Engineering Technology $232,809,000 88
85 Thundercat Technology $227,624,000 89
88 By Light Professional IT Services Inc. $223,779,000 84
89 Trax International Corp. $220,959,000 82
90 Ukpeagvik Inupiat Corp. $219,001,000
91 Blue Tech Inc. $214,046,000
92 Scientific Research Corp. $212,331,000 90
93 New Tech Solutions Inc. $212,108,000
94 Four LLC $208,380,000 81
95 Digital Management Inc. $206,636,000 87
96 Alvarez & Associates $199,134,000 78
97 Ernst & Young $185,278,000
98 Noblis Inc. $184,483,000 97
99 SRC Inc. $183,116,000
100 Nana Regional Corp. $177,645,000
Federal Procurement Data System, Washington Technology

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