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| 6 | CWKJEXDG79A7 | BATTELLE MEMORIAL INSTITUTE | $30,354,931,646 | 1 |
| 7 | XLQ7CKUSQSD5 | SAVANNAH RIVER NUCLEAR SOLUTIONS LLC | $27,154,619,520 | 1 |
| 8 | HG7XL5RBNX55 | BATTELLE ENERGY ALLIANCE, LLC | $25,680,438,713 | 1 |
| 9 | HLWWEH2CCXW5 | THE BOEING COMPANY | $22,405,025,934 | 1 |
| 10 | PKK5TD16N4H1 | THE REGENTS OF THE UNIVERSITY OF CALIFORNIA | $19,558,423,796 | 1 |
| 11 | DMEGBYTVBQS5 | HONEYWELL FEDERAL MANUFACTURING & TECHNOLOGIES, LLC | $17,385,377,663 | 1 |
| 12 | JA8EP8EKX8Y9 | UCHICAGO ARGONNE, LLC | $17,264,919,334 | 1 |
| 13 | HGF7H89MA3D9 | BECHTEL NATIONAL, INC. | $17,034,586,106 | 1 |
| 14 | FYHNA5WC8XD7 | LOCKHEED MARTIN CORP | $16,320,832,806 | 5 |
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| 16 | CWHMVCX7K1N6 | FLUOR MARINE PROPULSION, LLC | $14,774,555,215 | 1 |
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| 18 | YC1YP79BFD19 | CALIFORNIA INSTITUTE OF TECHNOLOGY | $12,851,553,310 | 90 |
| 19 | DVGLNXBURMP3 | ALLIANCE FOR ENERGY INNOVATION, LLC | $10,683,511,618 | 1 |
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| 21 | R85KZ9JP3NM3 | BROOKHAVEN SCIENCE ASSOCIATES LLC | $8,505,704,689 | 1 |
| 22 | YSYZHPCG4XB3 | MISSION SUPPORT & TEST SERVICES LLC | $7,577,227,068 | 1 |
| 23 | GN8YP96TMPK6 | QTC MEDICAL SERVICES INC | $5,975,124,827 | 33 |
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| 27 | JCBMLGPE6Z71 | BOOZ ALLEN HAMILTON INC | $4,765,428,544 | 95 |
| 28 | YJL4YS8YMWV7 | RUSSIA SPACE AGENCY | $4,680,264,815 | 1 |
| 29 | WMXDDH6HJNA5 | HUNTINGTON INGALLS INC | $4,513,258,403 | 1 |
| 30 | NG33LHHLGG15 | FLUOR-BWXT PORTSMOUTH LLC | $4,465,438,521 | 1 |
| 31 | LRVQERN7YNH9 | NORTHROP GRUMMAN SYSTEMS CORPORATION | $4,425,784,857 | 1 |
| 32 | C47BNA8GM833 | ACCENTURE FEDERAL SERVICES LLC | $4,368,737,852 | 45 |
| 33 | MT6ZNX9BMGB7 | VETERANS EVALUATION SERVICES, INC | $3,834,329,617 | 35 |
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| 36 | G5XXLHZSW8X3 | OPTUMSERVE HEALTH SERVICES, INC. | $3,679,187,897 | 27 |
| 37 | C6M7C2FLKER5 | SPACE EXPLORATION TECHNOLOGIES CORP. | $3,559,597,461 | 4 |
| 38 | SPG7J8395CJ5 | PANTEXAS DETERRENCE, LLC | $3,517,043,101 | 1 |
| 39 | VTEWM5QSE598 | RAYTHEON COMPANY | $3,500,691,661 | 8 |
| 40 | JENBF1KKWZ93 | PAE GOVERNMENT SERVICES, INC. | $3,472,501,135 | 20 |
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| 42 | JCZYYYQ7JGF5 | AEROJET ROCKETDYNE OF DE, INC | $3,239,676,487 | 1 |
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| 44 | MMLKPW9JLX64 | SCIENCE APPLICATIONS INTERNATIONAL CORPORATION | $3,081,565,223 | 53 |
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| 49 | XXNJCWMAKNH8 | BL HARBERT INTERNATIONAL LLC | $2,781,161,921 | 7 |
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| 51 | J4TDNRDMRMZ3 | CENTRAL PLATEAU CLEANUP COMPANY, LLC | $2,681,096,524 | 2 |
| 52 | XFJMYSYFJEK4 | LOCKHEED MARTIN CORPORATION | $2,611,777,517 | 3 |
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| 54 | CM39N6XPQF41 | UNITED CLEANUP OAK RIDGE LLC | $2,409,158,908 | 1 |
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| 57 | MX89BGD5FK75 | AT&T ENTERPRISES, LLC | $2,297,321,572 | 24 |
| 58 | NJ1YPQXQG7U5 | THE TRUSTEES OF PRINCETON UNIVERSITY | $2,190,480,173 | 4 |
| 59 | MBSRAWAQ9559 | PERATON ENTERPRISE SOLUTIONS LLC | $2,161,343,925 | 41 |
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| 80 | GS59ABNVD6N7 | CACI NSS, LLC | $1,268,384,559 | 4 |
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| 86 | Q5LJNF15T2R5 | SALIENT CRGT, INC. | $1,121,831,826 | 5 |
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| 98 | HQ4FB19HK6N8 | AMERICAN WATER OPERATIONS AND MAINTENANCE, LLC | $826,927,653 | 4 |
| 99 | VEP4UN7LDMK5 | WHITING-TURNER CONTRACTING COMPANY, THE | $810,214,755 | 17 |
| 100 | WN8JFVZTBCA5 | MINBURN TECHNOLOGY GROUP, LLC | $807,743,393 | 54 |