Top 100 Contractors in PSC AJ11: General Science and Technology R&D Services; General Science and Technology; Basic Research, FY2025
Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe
The top 10 won 34% of FY2025 PSC AJ11 contract dollars
Ranking facts
- Contract obligations
- $2,133,425,174 Net of deobligations, by contracts coded PSC AJ11
- Contractors
- 859 Parent companies with an obligation
- Largest contractor
- Georgia TECH Research Corp $278 million, 12.8% of obligations
- Data as of
Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)
Full ranking
| Rank | Contractor | Net obligations | Share | Trend |
|---|---|---|---|---|
| 1 | $278,377,267 | |||
| 2 | $103,621,318 | |||
| 3 | $61,710,034 | |||
| 4 | $52,286,543 | |||
| 5 | $49,449,254 | |||
| 6 |
PD Systems, LLC
Top agencies
|
$40,901,466 | ||
| 7 |
Johns Hopkins University
|
$40,500,396 | ||
| 8 | $37,759,894 | |||
| 9 | $35,921,253 | |||
| 10 | $31,464,091 | |||
| 11 | $29,393,252 | |||
| 12 | $25,679,102 | |||
| 13 | $25,409,320 | |||
| 14 | $24,144,080 | |||
| 15 | $23,404,226 | |||
| 16 | $22,268,153 | |||
| 17 | $21,113,469 | |||
| 18 | $20,420,693 | |||
| 19 | $19,537,593 | |||
| 20 | $18,760,615 | |||
| 21 | $18,634,478 | |||
| 22 | $17,817,721 | |||
| 23 | $17,207,069 | |||
| 24 |
Virginia Commonwealth University Health System Authority
|
$16,387,174 | ||
| 25 | $16,304,480 | |||
| 26 | $15,896,753 | |||
| 27 | $15,836,900 | |||
| 28 |
University of Illinois
Top agencies
|
$15,483,794 | ||
| 29 | $15,169,881 | |||
| 30 | $14,896,629 | |||
| 31 | $14,822,571 | |||
| 32 | $14,666,815 | |||
| 33 | $14,508,809 | |||
| 34 | $14,285,325 | |||
| 35 | $13,451,643 | |||
| 36 |
QED Systems LLC
Top agencies
|
$13,408,118 | ||
| 37 | $13,175,078 | |||
| 38 | $12,554,390 | |||
| 39 | $12,129,241 | |||
| 40 |
ICF International Inc.
|
$11,796,205 | ||
| 41 | $11,409,127 | |||
| 42 | $11,391,150 | |||
| 43 | $11,321,608 | |||
| 44 | $10,743,346 | |||
| 45 | $10,449,338 | |||
| 46 | $10,300,934 | |||
| 47 | $10,180,759 | |||
| 48 | $9,698,833 | |||
| 49 | $9,590,184 | |||
| 50 | $9,435,323 | |||
| 51 |
Dzyne Technologies, LLC
Top agencies
|
$9,254,410 | ||
| 52 |
Analytical Mechanics Associates Inc.
Top agencies
|
$8,480,544 | ||
| 53 | $8,026,701 | |||
| 54 | $8,017,270 | |||
| 55 | $7,972,974 | |||
| 56 |
Purvis Systems Incorporated
Top agencies
|
$7,680,432 | ||
| 57 | $7,671,632 | |||
| 58 | $7,669,135 | |||
| 59 | $7,482,572 | |||
| 60 | $7,248,612 | |||
| 61 | $7,080,403 | |||
| 62 | $6,875,576 | |||
| 63 | $6,867,236 | |||
| 64 | $6,698,136 | |||
| 65 | $6,631,334 | |||
| 66 | $6,352,161 | |||
| 67 | $5,995,977 | |||
| 68 | $5,921,497 | |||
| 69 |
Morsecorp, Inc.
Top agencies
|
$5,702,923 | ||
| 70 |
Trustees of Dartmouth College
|
$5,662,099 | ||
| 71 | $5,548,905 | |||
| 72 | $5,460,041 | |||
| 73 | $5,230,197 | |||
| 74 | $5,187,701 | |||
| 75 | $5,016,331 | |||
| 76 | $5,008,429 | |||
| 77 | $4,833,555 | |||
| 78 | $4,788,875 | |||
| 79 |
Charles River Laboratories International Inc.
|
$4,773,761 | ||
| 80 | $4,677,462 | |||
| 81 | $4,600,000 | |||
| 82 |
GSI Environmental Inc.
Top agencies
|
$4,508,067 | ||
| 83 | $4,484,431 | |||
| 84 | $4,467,762 | |||
| 85 | $4,433,143 | |||
| 86 | $4,383,983 | |||
| 87 | $4,297,352 | |||
| 88 | $4,271,084 | |||
| 89 |
Apollotech MSI Corp
Top agencies
|
$4,191,000 | ||
| 90 | $4,188,434 | |||
| 91 | $4,123,078 | |||
| 92 | $4,103,554 | |||
| 93 | $4,098,591 | |||
| 94 | $4,097,882 | |||
| 95 | $3,781,078 | |||
| 96 | $3,760,758 | |||
| 97 | $3,756,300 | |||
| 98 | $3,728,128 | |||
| 99 | $3,535,238 | |||
| 100 |
Integration Innovation Inc.
Top agencies
|
$3,494,742 |
Show 75 more
100 of 859 contractors listed here. See the rest on GovTribe.
How this ranking works
- Source: every contract action FPDS records (as published on SAM.gov) in the period, as GovTribe received it.
- Amounts are net obligations: what was obligated, less what was deobligated. Shares are of $2.17 billion obligated before deobligations, so they never pass 100%.
- Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
- Fiscal year 2025 ran Oct 1, 2024 – Sep 30, 2025. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
- Rank changes compare with FY2024. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
- Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list. The step from FY2024 takes the color of the rank change beside it.
- Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.
Quick answers
Who were the top 10 PSC AJ11 contractors in FY2025?
1. Georgia TECH Research Corp ($278M), 2. University System of Maryland ($104M), 3. The Regents of the University of Colorado ($61.7M), 4. L3Harris Technologies, Inc. ($52.3M), 5. Southwest Research Institute ($49.4M), 6. PD Systems, LLC ($40.9M), 7. Johns Hopkins University ($40.5M), 8. The Mitre Corporation ($37.8M), 9. University of Arizona ($35.9M), 10. Booz Allen Hamilton Holding Corporation ($31.5M).
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