Top 52 Contractors in PSC AC23: National Defense R&D Services; Atomic Energy Defense Activities; Experimental Development, FY2025
Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe
The top 10 won 83% of FY2025 PSC AC23 contract dollars
Ranking facts
- Contract obligations
- $1,465,156,034 Net of deobligations, by contracts coded PSC AC23
- Contractors
- 54 Parent companies with an obligation
- Largest contractor
- RTX Corporation $328 million, 21.2% of obligations
- Data as of
Contract actions from FPDS (SAM.gov). How the rankings work · Download all 52 rows as CSV
Full ranking
| Rank | Contractor | Net obligations | Share | Trend |
|---|---|---|---|---|
| 1 |
RTX Corporation
Top agencies
|
$328,180,339 | ||
| 2 | $174,792,835 | |||
| 3 |
Amentum Holdings, Inc.
Top agencies
|
$173,306,029 | ||
| 4 |
The Johns Hopkins University Applied Physics Laboratory LLC
|
$146,170,998 | ||
| 5 |
The Boeing Company
Top agencies
|
$136,033,361 | ||
| 6 | $134,306,802 | |||
| 7 | $63,454,047 | |||
| 8 | $54,349,177 | |||
| 9 | $54,202,534 | |||
| 10 | $25,445,286 | |||
| 11 |
Parsons Corporation
Top agencies
|
$24,062,512 | ||
| 12 |
Axient LLC
Top agencies
|
$20,704,646 | ||
| 13 |
Dtechlogic LLC
Top agencies
|
$18,276,647 | ||
| 14 |
Mistral Inc
Top agencies
|
$15,370,192 | ||
| 15 | $14,917,525 | |||
| 16 |
Amentum Technology, Inc.
Top agencies
|
$11,348,326 | ||
| 17 |
DEF-Logix Inc
Top agencies
|
$10,220,722 | ||
| 18 | $9,585,986 | |||
| 19 | $9,293,892 | |||
| 20 |
York Space Systems LLC
Top agencies
|
$5,572,245 | ||
| 21 |
Raglan LLC
Top agencies
|
$4,998,000 | ||
| 22 |
Sonalysts Inc.
Top agencies
|
$3,560,566 | ||
| 23 |
Valt Enterprizes Inc.
Top agencies
|
$2,996,353 | ||
| 24 |
Parts Life Inc.
Top agencies
|
$2,497,750 | ||
| 25 |
Resonant Sciences LLC
Top agencies
|
$2,492,354 | ||
| 26 | $2,394,059 | |||
| 27 |
Anduril Industries Inc.
Top agencies
|
$2,342,336 | ||
| 28 |
Coldquanta Inc.
Top agencies
|
$1,900,000 | ||
| 29 |
Ultramet
Top agencies
|
$1,764,988 | ||
| 30 | $1,749,910 | |||
| 31 |
Ahtna Global LLC
Top agencies
|
$1,698,555 | ||
| 32 | $1,678,436 | |||
| 33 | $1,599,320 | |||
| 34 |
MTI Systems Inc.
Top agencies
|
$1,489,500 | ||
| 35 |
Canyon Consulting, LLC
Top agencies
|
$1,354,037 | ||
| 36 |
Serco Inc
Top agencies
|
$1,100,000 | ||
| 37 | $999,459 | |||
| 38 | $775,000 | |||
| 39 |
Fuceltech Inc.
Top agencies
|
$562,762 | ||
| 40 |
Raytheon Company
Top agencies
|
$550,000 | ||
| 41 |
Hana Industries, Inc.
Top agencies
|
$497,680 | ||
| 42 | $457,298 | |||
| 43 | $386,000 | |||
| 44 |
Em Photonics Inc.
Top agencies
|
$294,000 | ||
| 45 | $227,833 | |||
| 46 |
Scitec Innovations LLC
Top agencies
|
$212,422 | ||
| 47 | $166,102 | |||
| 48 |
EXO-Atmospheric Technologies LLC
Top agencies
|
$149,212 | ||
| 49 |
L3 Technologies, Inc.
Top agencies
|
$139,835 | ||
| 50 | $110,111 | |||
| 51 | $51,332 | |||
| 52 |
Ram Laboratories
Top agencies
|
$46,252 |
Show 27 more
52 of 54 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 $1.55 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 AC23 contractors in FY2025?
1. RTX Corporation ($328M), 2. Lockheed Martin Corporation ($175M), 3. Amentum Holdings, Inc. ($173M), 4. The Johns Hopkins University Applied Physics Laboratory LLC ($146M), 5. The Boeing Company ($136M), 6. Northrop Grumman Corporation ($134M), 7. Intuitive Research and Technology Corporation ($63.5M), 8. The Charles Stark Draper Laboratory, Inc. ($54.3M), 9. Utah State University Space Dynamics Laboratory ($54.2M), 10. Arctic Slope Regional Corporation ($25.4M).
On GovTribe
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