Top 73 Contractors in PSC AC31: National Defense R&D Services; Defense-Related Activities; Basic Research, FY2025
Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe
The top 10 won 87% of FY2025 PSC AC31 contract dollars
Ranking facts
- Contract obligations
- $1,077,818,093 Net of deobligations, by contracts coded PSC AC31
- Contractors
- 76 Parent companies with an obligation
- Largest contractor
- Massachusetts Institute of Technology $690 million, 63.2% of obligations
- Data as of
Contract actions from FPDS (SAM.gov). How the rankings work · Download all 73 rows as CSV
Full ranking
| Rank | Contractor | Net obligations | Share | Trend |
|---|---|---|---|---|
| 1 | $690,121,605 | |||
| 2 | $65,066,718 | |||
| 3 | $32,025,185 | |||
| 4 | $28,245,390 | |||
| 5 | $27,517,928 | |||
| 6 | $26,557,220 | |||
| 7 | $22,696,490 | |||
| 8 |
Textron Inc.
Top agencies
|
$21,509,804 | ||
| 9 |
RTX Corporation
Top agencies
|
$20,480,565 | ||
| 10 | $16,736,824 | |||
| 11 |
Envisioneering Inc.
Top agencies
|
$15,821,692 | ||
| 12 |
Seed Innovations, LLC
Top agencies
|
$10,482,698 | ||
| 13 | $10,463,617 | |||
| 14 |
Scitec Innovations LLC
Top agencies
|
$9,380,586 | ||
| 15 |
Astroscale US Inc
Top agencies
|
$8,749,116 | ||
| 16 |
Guidehouse Inc.
Top agencies
|
$7,051,661 | ||
| 17 | $6,214,488 | |||
| 18 |
Matrix Research Inc
Top agencies
|
$5,897,330 | ||
| 19 |
Parsons Corporation
Top agencies
|
$5,312,120 | ||
| 20 | $5,287,700 | |||
| 21 | $4,894,556 | |||
| 22 |
Technology Service Corp
Top agencies
|
$3,320,659 | ||
| 23 | $3,262,952 | |||
| 24 |
KBR Wyle Services LLC
Top agencies
|
$2,480,646 | ||
| 25 | $2,470,768 | |||
| 26 |
Oasis Systems, LLC
Top agencies
|
$2,200,000 | ||
| 27 | $1,678,763 | |||
| 28 | $1,596,238 | |||
| 29 | $1,483,326 | |||
| 30 |
Indal Technologies Inc
Top agencies
|
$1,422,347 | ||
| 31 |
Qinetiq Inc.
Top agencies
|
$1,378,856 | ||
| 32 | $1,358,487 | |||
| 33 | $1,303,202 | |||
| 34 |
General Electric Company
Top agencies
|
$1,159,607 | ||
| 35 |
Welin Lambie Limited
Top agencies
|
$1,098,371 | ||
| 36 | $980,000 | |||
| 37 | $976,424 | |||
| 38 | $862,434 | |||
| 39 |
Nag, LLC
Top agencies
|
$811,185 | ||
| 40 | $663,768 | |||
| 41 |
Colvin Run Networks, Inc.
Top agencies
|
$604,733 | ||
| 42 | $602,858 | |||
| 43 | $559,428 | |||
| 44 |
The Dcode Group Inc.
Top agencies
|
$527,850 | ||
| 45 |
Culmen International, LLC
Top agencies
|
$511,440 | ||
| 46 |
Prenosis, Inc.
Top agencies
|
$508,783 | ||
| 47 | $500,000 | |||
| 48 |
Maritime Surveillance Associates Inc
Top agencies
|
$415,388 | ||
| 49 |
Jered LLC
Top agencies
|
$396,150 | ||
| 50 | $379,755 | |||
| 51 | $358,899 | |||
| 52 |
Esco Technologies Inc.
Top agencies
|
$322,296 | ||
| 53 | $268,058 | |||
| 54 | $206,240 | |||
| 55 |
Simventions Inc.
Top agencies
|
$190,119 | ||
| 56 |
Duke University
Top agencies
|
$149,611 | ||
| 57 | $144,852 | |||
| 58 |
Web Sensing LLC
Top agencies
|
$127,644 | ||
| 59 | $120,409 | |||
| 60 | $106,612 | |||
| 61 | $104,111 | |||
| 62 | $99,994 | |||
| 63 | $96,409 | |||
| 64 |
Brown University
Top agencies
|
$60,000 | ||
| 65 |
Serco Inc
Top agencies
|
$55,919 | ||
| 66 |
Verus Research, LLC
Top agencies
|
$25,000 | ||
| 67 |
Sedaro Corporation
Top agencies
|
$10,000 | ||
| 68 |
Intecon LLC
Top agencies
|
$2,500 | ||
| 69 |
Future Technologies Inc.
Top agencies
|
$2,500 | ||
| 70 |
Applied Technology, Inc.
Top agencies
|
$2,500 | ||
| 71 |
Isys, Incorporated
Top agencies
|
$2,500 | ||
| 72 | $2,500 | |||
| 73 |
Remcom Inc.
Top agencies
|
$2,500 |
Show 48 more
73 of 76 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 $1.09 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. 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 AC31 contractors in FY2025?
1. Massachusetts Institute of Technology ($690M), 2. Advanced Technology International ($65.1M), 3. Carnegie Mellon University ($32M), 4. Cubrc, Inc. ($28.2M), 5. Mclaughlin Research Corporation ($27.5M), 6. Lockheed Martin Corporation ($26.6M), 7. Hypergiant Galactic Systems, Inc. ($22.7M), 8. Textron Inc. ($21.5M), 9. RTX Corporation ($20.5M), 10. General Dynamics Corporation ($16.7M).
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