Top 25 Homeland Security Contractors

Total Purchases: $11,724,035,867
Rank Parent Company Amount Market Share
1 Lockheed Martin Corp. $473,457,872 4.03%
2 Northrop Grumman Corp. 447,304,824 3.81
3 IBM Corp. 440,776,859 3.75
4 L-3 Communications Holdings 350,460,252 2.98
5 Unisys Corp. 315,379,645 2.69
6 SAIC 294,678,026 2.51
7 Boeing Co. 265,451,818 2.26
8 Booz Allen Hamilton Inc. 240,883,220 2.05
9 General Electric Co. 198,891,533 1.69
10 Accenture 192,027,979 1.63
11 General Dynamics Corp. 187,425,954 1.59
12 Fluor Corp. 172,264,101 1.46
13 Covenant Services Worldwide 143,856,598 1.22
14 QinetiQ Ltd. 143,015,485 1.21
15 URS Corp. 129,552,029 1.10
16 Computer Sciences Corp. 128,003,957 1.09
17 Siemens AG 119,380,585 1.01
18 Corrections Corp. of America 116,596,246 0.99
19 Smith Group PLC 115,306,858 0.98
20 AKAL Security Inc. 109,156,692 0.93
21 Cooperative Personnel Services 104,585,030 0.89
22 American Eurocopter Corp. 102,241,509 0.87
23 Michael Baker Corp. 95,873,234 0.81
24 Motorola Inc. 84,680,351 0.72
25 G4S PLC 83,527,335 0.71
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