Total Purchases: $15,435,397,019

RankParent company AmountMarket share
1Fluor Corp.$1,506,644,6489.76%
2Shaw Group Inc. 852,223,0325.52
3IBM Corp.510,415,6883.30
4Bechtel Group Inc.470,389,7883.04
5CH2M Hill Companies Ltd.437,752,3212.83
6Northrop Grumman Corp389,881,6632.52
7Unisys Corp.387,092,1232.50
8L-3 Communications Holdings340,981,5382.20
9American Red Cross285,169,4461.84
10Lockheed Martin Corp.284,661,0251.84
11NISTAC277,804,4851.79
12SAIC220,852,6831.43
13AKAL Security Inc.155,825,5351.00
14J.H.M. Research & Development149,805,670.97
15Accenture142,794,8200.92
16Dewberry141,896,7390.91
17URS Corp.139,508,3410.90
18General Electric Co.133,818,6450.86
19Parsons Brinckerhoff Inc.133,012,0850.86
20Booz Allen Hamilton Inc.130,064,2940.84
21Cooperative Personnel Services124,788,7880.80
22General Dynamics Corp. 122,788,9680.79
23Motorola Inc.111,013,5030.71
24Gilbane Inc.108,539,6300.70
25Computer Sciences Corp. 106,533,2860.69

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