Top 25 NASA Contractors
Total Purchases: $17,502,057,759
| Rank | Parent Company | Amount | Market Share |
| 1 | Lockheed Martin Corp. | $3,586,946,390 | 20.49% |
| 2 | Boeing Co. | 2,742,231,083 | 15.67 |
| 3 | California Institute of Technology | 1,748,922,856 | 9.99 |
| 4 | Alliant Techsystems Inc. | 710,967,241 | 4.06 |
| 5 | Jacobs Engineering Group Inc. | 693,822,399 | 3.96 |
| 6 | United Technologies Corp. | 448,196,097 | 2.56 |
| 7 | Northrop Grumman Corp. | 398,050,373 | 2.27 |
| 8 | Government of Russia | 387,656,298 | 2.21 |
| 9 | SAIC | 349,257,053 | 2.00 |
| 10 | Honeywell Inc. | 280,661,003 | 1.60 |
| 11 | SGT Inc. | 278,031,147 | 1.59 |
| 12 | Computer Sciences Corp. | 250,628,596 | 1.43 |
| 13 | Johns Hopkins University | 235,365,467 | 1.34 |
| 14 | Arctic Slope Regional Corp. | 192,122,486 | 1.10 |
| 15 | Wyle Laboratories Inc. | 147,485,606 | 0.84 |
| 16 | URS Corp. | 145,087,047 | 0.83 |
| 17 | Ball Corp. | 138,574,803 | 0.79 |
| 18 | Orbital Sciences Corp. | 126,945,488 | 0.73 |
| 19 | ITT Corp. | 105,566,934 | 0.60 |
| 20 | University of Colorado System | 104,822,468 | 0.60 |
| 21 | Raytheon Co. | 98,227,843 | 0.56 |
| 22 | QinetiQ Ltd. | 87,249,847 | 0.50 |
| 23 | University of California System | 85,754,300 | 0.49 |
| 24 | Assoc. Univ. Research & Astronomy | 80,610,775 | 0.46 |
| 25 | Teledyne Technologies Inc. | 78,066,404 | 0.45 |
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