Top 41 Contractors in PSC AG: Energy R&D Services, FY2025
Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe
The top 10 won 94% of FY2025 PSC AG contract dollars
Ranking facts
- Contract obligations
- $147,300,238 Net of deobligations, by contracts coded PSC AG or a code under it
- Contractors
- 41 Parent companies with an obligation
- Largest contractor
- BWX Technologies, Inc. $106 million, 71.2% of obligations
- Data as of
Contract actions from FPDS (SAM.gov). How the rankings work · Download all 41 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)
Full ranking
| Rank | Contractor | Net obligations | Share | Trend |
|---|---|---|---|---|
| 1 | $105,981,650 | |||
| 2 | $10,099,685 | |||
| 3 | $5,158,507 | |||
| 4 |
CEG Solutions LLC
Top agencies
|
$5,071,870 | ||
| 5 |
University of Illinois
Top agencies
|
$3,261,022 | ||
| 6 |
Noresco, LLC
|
$2,936,625 | ||
| 7 |
Diakon Solutions LLC
Top agencies
|
$2,840,213 | ||
| 8 | $1,622,034 | |||
| 9 |
X Energy, LLC
Top agencies
|
$1,593,596 | ||
| 10 |
Schneider Electric USA Inc.
Top agencies
|
$1,521,627 | ||
| 11 | $992,429 | |||
| 12 |
Siemens Corporation
Top agencies
|
$968,971 | ||
| 13 | $852,407 | |||
| 14 | $685,000 | |||
| 15 |
Cornerstone Research Group Inc
Top agencies
|
$637,681 | ||
| 16 | $637,000 | |||
| 17 |
Semquest, Inc.
Top agencies
|
$589,829 | ||
| 18 |
Mark G. Miller, Inc.
Top agencies
|
$525,778 | ||
| 19 | $512,180 | |||
| 20 | $287,153 | |||
| 21 | $266,000 | |||
| 22 | $253,975 | |||
| 23 | $244,560 | |||
| 24 |
University of Puerto Rico
Top agencies
|
$227,181 | ||
| 25 |
Biomass Energy Systems Inc.
Top agencies
|
$203,330 | ||
| 26 | $176,434 | |||
| 27 |
15519799 Canada Inc.
Top agencies
|
$100,000 | ||
| 28 |
The Vanderbilt University
Top agencies
|
$99,849 | ||
| 29 |
Wood Mackenzie Inc
Top agencies
|
$73,857 | ||
| 30 | $72,000 | |||
| 31 |
IPD Latin America, LLC
Top agencies
|
$58,984 | ||
| 32 |
New Energy Corporation Inc.
Top agencies
|
$49,800 | ||
| 33 | $42,940 | |||
| 34 | $40,000 | |||
| 35 | $38,882 | |||
| 36 |
Versar, Inc.
Top agencies
|
$30,279 | ||
| 37 | $30,003 | |||
| 38 |
Hydromechanica Inc.
Top agencies
|
$24,835 | ||
| 39 |
Yes Energy LLC
Top agencies
|
$20,800 | ||
| 40 | $15,000 | |||
| 41 | $12,560 |
Show all 41
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 $149 million 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 AG contractors in FY2025?
1. BWX Technologies, Inc. ($106M), 2. Connected Alliances LLC ($10.1M), 3. Electric Power Research Institute Inc. ($5.16M), 4. CEG Solutions LLC ($5.07M), 5. University of Illinois ($3.26M), 6. Noresco, LLC ($2.94M), 7. Diakon Solutions LLC ($2.84M), 8. Tactical Electronics and Military Supply L.L.C. ($1.62M), 9. X Energy, LLC ($1.59M), 10. Schneider Electric USA Inc. ($1.52M).
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