Top 25 GSA Contractors
Total Purchases: $12,042,060,421
| Rank | Parent Company | Amount | Market Share |
| 1 | General Motors Corp. | $488,515,155 | 4.05% |
| 2 | Ford Motor Co. | 352,505,921 | 2.92 |
| 3 | W.G. Yates & Sons Construction Co. | 313,989,508 | 2.60 |
| 4 | SAIC | 253,601,361 | 2.10 |
| 5 | Northrop Grumman Corp. | 253,201,948 | 2.10 |
| 6 | General Dynamics Corp. | 216,974,424 | 1.80 |
| 7 | SRA International Inc. | 192,604,794 | 1.59 |
| 8 | Computer Sciences Corp. | 180,256,501 | 1.49 |
| 9 | Chrysler LLC | 149,381,666 | 1.24 |
| 10 | National Industries for the Blind | 143,601,412 | 1.19 |
| 11 | EDS | 124,642,250 | 1.03 |
| 12 | Lockheed Martin Corp. | 111,011,232 | 0.92 |
| 13 | Mascaro Inc. | 104,351,500 | 0.86 |
| 14 | CACI International Inc. | 100,089,510 | 0.83 |
| 15 | Booz Allen Hamilton Inc. | 92,393,893 | 0.76 |
| 16 | L-3 Communications Holdings | 85,927,280 | 0.71 |
| 17 | Unisys Corp. | 79,822,479 | 0.66 |
| 18 | Navistar International Corp. | 77,729,685 | 0.64 |
| 19 | Pepco Holdings Inc. | 73,365,565 | 0.60 |
| 20 | J.E. Dunn Construction | 72,945,045 | 0.60 |
| 21 | Grunley Construction Co. | 72,501,496 | 0.60 |
| 22 | LCOR Alexandria LLC | 70,311,260 | 0.58 |
| 23 | Amerada Hess Corp. | 59,998,283 | 0.49 |
| 24 | Clarke Assoc. Ltd Partnership | 59,546,590 | 0.49 |
| 25 | Kansas City Power & Light | 58,562,321 | 0.48 |
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