Top 25 Homeland Security Contractors
Total Purchases: $13,671,380,056
| Rank | Parent Company | Amount | Market Share |
| 1 | Boeing Co. | $591,047,895 | 4.32% |
| 2 | Lockheed Martin Corp. | 486,939,176 | 3.56 |
| 3 | IBM Corp. | 485,197,799 | 3.54 |
| 4 | Accenture | 392,700,978 | 2.87 |
| 5 | General Dynamics Corp. | 391,604,830 | 2.86 |
| 6 | SAIC | 363,325,732 | 2.65 |
| 7 | Unisys Corp. | 343,981,542 | 2.51 |
| 8 | L-3 Communications Holdings | 325,164,806 | 2.37 |
| 9 | Northrop Grumman Corp. | 312,895,190 | 2.28 |
| 10 | Carlyle Group | 255,919,872 | 1.87 |
| 11 | Computer Sciences Corp. | 220,988,720 | 1.61 |
| 12 | G4S PLC | 177,159,427 | 1.29 |
| 13 | Qinetiq Ltd. | 173,235,769 | 1.26 |
| 14 | URS Corp. | 145,637,430 | 1.06 |
| 15 | American Eurocopter Corp. | 143,877,146 | 1.05 |
| 16 | General Electric Co. | 137,598,409 | 1.00 |
| 17 | Siemens AG | 132,943,238 | 0.97 |
| 18 | AKAL Security Inc. | 132,286,442 | 0.96 |
| 19 | Motorola Inc. | 126,281,824 | 0.92 |
| 20 | FirstGroup PLC | 105,950,602 | 0.77 |
| 21 | Chenega Corp. | 102,819,157 | 0.75 |
| 22 | BAE Systems | 102,253,979 | 0.74 |
| 23 | Michael Baker Corp. | 102,084,376 | 0.74 |
| 24 | Hewlett-Packard Co. | 99,422,271 | 0.72 |
| 25 | SRA International Inc. | 91,326,776 | 0.66 |
NEXT STORY: Government Executive : Vol. 41 No. 9 (8/1/09)