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Top Contractors at the Environmental Protection Agency
TOTAL PURCHASES: $999,655,000
| Rank | Parent Company | Amount ($000s) | Market Share |
| 1 | Science Applications Intl. Corp. | 61,517 | 6.15 |
| 2 | Lockheed Martin Corp. | 59,214 | 5.92 |
| 3 | Riedel Environmental Services | 54,216 | 5.42 |
| 4 | ICF Kaiser International Inc. | 52,004 | 5.2 |
| 5 | Roy F. Weston Co. | 51,226 | 5.12 |
| 6 | Ecology & Environment Inc. | 42,121 | 4.21 |
| 7 | Bell & Howell | 36,897 | 3.69 |
| 8 | Earth Technology Corp. | 31,936 | 3.19 |
| 9 | OHM Corp. | 31,397 | 3.14 |
| 10 | CH2M Hill Companies Ltd. | 29,332 | 2.93 |
Rankings are based on R&D, services and production prime contracts of $25,000 or more.
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