Top 25 NASA Contractors
Total Purchases: $14,415,325,294
| Rank | Parent company | Amount | Market share |
| 1 | Lockheed Martin Corp. | $2,418,561,053 | 16.77% |
| 2 | Boeing Co. | 1,821,079,271 | 12.63 |
| 3 | California Institute of Technology | 1,712,226,318 | 11.87 |
| 4 | United Technologies Corp. | 519,894,666 | 3.60 |
| 5 | Northrop Grumman Corp. | 471,989,178 | 3.27 |
| 6 | Alliant Techsystems Inc. | 460,036,877 | 3.19 |
| 7 | Jacobs Engineering Group Inc. | 437,678,315 | 3.03 |
| 8 | SAIC | 434,989,707 | 3.01 |
| 9 | Honeywell Inc. | 276,535,610 | 1.91 |
| 10 | Group 4 Securicor PLC | 186,109,403 | 1.29 |
| 11 | Computer Sciences Corp. | 157,889,107 | 1.09 |
| 12 | Johns Hopkins University | 140,384,656 | 0.97 |
| 13 | Swales Aerospace | 127,232,572 | 0.88 |
| 14 | Raytheon Co. | 119,864,084 | 0.83 |
| 15 | Ball Corp. | 116,065,216 | 0.80 |
| 16 | Perot Systems Corp. | 110,330,680 | 0.76 |
| 17 | ITT Industries | 104,850,715 | 0.72 |
| 18 | Wyle Laboratories Inc. | 102,869,342 | 0.71 |
| 19 | University of California System | 102,285,730 | 0.70 |
| 20 | SGT Inc. | 99,982,998 | 0.69 |
| 21 | Universities Space Research Association | 97,356,261 | 0.67 |
| 22 | InDyne Inc. | 90,692,664 | 0.62 |
| 23 | Arctic Slope Regional Corp. | 81,075,380 | 0.56 |
| 24 | Government of Russia | 80,001,576 | 0.55 |
| 25 | Mississippi Space Services | 79,365,323 | 0.55 |
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