Top 35 Contractors in PSC AG: Energy R&D Services, Jul 2025–Jun 2026

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Bwxt Advanced Technologies LLC Top agencies OSD (Office of the Secretary of Defense)	$47,259,524	35.5%	Rank history: #1 in FY2021, not on the FY2022–FY2023 lists, #1 in FY2024 and #1 in FY2025; unchanged since Jul 2024–Jun 2025.
2	Connected Alliances LLC Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$33,869,541	25.4%	Rank history: not on the FY2021–FY2024 lists and #2 in FY2025; new, not ranked in Jul 2024–Jun 2025.
3	Energy Systems Group, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$11,882,202	8.9%	Rank history: not on the FY2021–FY2023 lists, #18 in FY2024 and #11 in FY2025; up 11 since Jul 2024–Jun 2025.
4	Electric Power Research Institute Inc. Top agencies DOE (Department of Energy)	$5,751,414	4.3%	Rank history: #12 in FY2021, #20 in FY2022, #6 in FY2023, #10 in FY2024 and #3 in FY2025; up 4 since Jul 2024–Jun 2025.
5	CEG Solutions LLC Top agencies OPM (Office of Personnel Management)	$4,658,899	3.5%	Rank history: not on the FY2021–FY2022 lists, #4 in FY2023, #6 in FY2024 and #4 in FY2025; down 2 since Jul 2024–Jun 2025.
6	Diakon Solutions LLC Top agencies DOT (Department of Transportation)	$1,995,959	1.5%	Rank history: not on the FY2021–FY2023 lists, #5 in FY2024 and #7 in FY2025; down 1 since Jul 2024–Jun 2025.
7	Noresco, LLC Top agencies HHS (Department of Health and Human Services)	$1,938,295	1.5%	Rank history: #19 in FY2021, #10 in FY2022, #10 in FY2023, #20 in FY2024 and #6 in FY2025; unchanged since Jul 2024–Jun 2025.
8	Tactical Electronics and Military Supply L.L.C. Top agencies DOI (Department of the Interior)	$1,622,034	1.2%	Rank history: not on the FY2021–FY2024 lists and #8 in FY2025; new, not ranked in Jul 2024–Jun 2025.
9	Schneider Electric USA Inc. Through Schneider Electric Buildings Americas, Inc. Top agencies GSA (General Services Administration)	$1,574,443	1.2%	Rank history: not on the FY2021–FY2023 lists, #21 in FY2024 and #10 in FY2025; up 3 since Jul 2024–Jun 2025.
10	Coastal Frontiers Corporation Top agencies DOI (Department of the Interior)	$978,545	0.7%	Rank history: not on the FY2021–FY2022 lists, #8 in FY2023, not on the FY2024 list and #13 in FY2025; up 8 since Jul 2024–Jun 2025.
11	Cornerstone Research Group Inc Top agencies USAF (Department of the Air Force)	$429,745	0.3%	Rank history: not on the FY2021–FY2023 lists, #16 in FY2024 and #15 in FY2025; up 8 since Jul 2024–Jun 2025.
12	Ametek Inc. Through Sunpower, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$411,365	0.3%	Rank history: #16 in FY2021, #45 in FY2022, #9 in FY2023, #12 in FY2024 and #19 in FY2025; down 1 since Jul 2024–Jun 2025.
13	National Strategic Research Institute Top agencies DOE (Department of Energy)	$400,000	0.3%	Rank history: #24 in FY2021, #61 in FY2022, #14 in FY2023, #11 in FY2024 and #14 in FY2025; up 9 since Jul 2024–Jun 2025.
14	Information Systems Laboratories, Inc. 2 awardees Top agencies NRC (Nuclear Regulatory Commission)	$369,630	0.3%	Rank history: not on the FY2021–FY2023 lists, #22 in FY2024 and #21 in FY2025; up 11 since Jul 2024–Jun 2025.
15	Technology Holding LLC Top agencies Navy (Department of the Navy)	$349,947	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
16	RPM Innovations Inc Top agencies NASA (National Aeronautics and Space Administration)	$349,350	0.3%	Rank history: not on the FY2021–FY2023 lists, #32 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
17	Honeywell International Inc. Top agencies Navy (Department of the Navy)	$262,923	0.2%	Rank history: #37 in FY2021, #31 in FY2022, not on the FY2023 list, #33 in FY2024 and #22 in FY2025; up 11 since Jul 2024–Jun 2025.
18	University of Illinois Top agencies Army (Department of the Army)	$261,022	0.2%	Rank history: not on the FY2021–FY2024 lists and #5 in FY2025; down 14 since Jul 2024–Jun 2025.
19	Mark G. Miller, Inc. Top agencies Army (Department of the Army)	$214,359	0.2%	Rank history: #23 in FY2021, #39 in FY2022, #18 in FY2023, #38 in FY2024 and #18 in FY2025; up 2 since Jul 2024–Jun 2025.
20	Biomass Energy Systems Inc. Top agencies Army (Department of the Army)	$203,330	0.2%	Rank history: #25 in FY2021, #24 in FY2022, #23 in FY2023, not on the FY2024 list and #25 in FY2025; new, not ranked in Jul 2024–Jun 2025.
21	15519799 Canada Inc. Top agencies Army (Department of the Army)	$100,000	0.1%	Rank history: not on the FY2021–FY2024 lists and #27 in FY2025; new, not ranked in Jul 2024–Jun 2025.
22	The Vanderbilt University Top agencies Army (Department of the Army)	$99,849	0.1%	Rank history: not on the FY2021–FY2024 lists and #28 in FY2025; new, not ranked in Jul 2024–Jun 2025.
23	Semquest, Inc. Top agencies Army (Department of the Army)	$97,829	0.1%	Rank history: not on the FY2021–FY2023 lists, #25 in FY2024 and #17 in FY2025; down 6 since Jul 2024–Jun 2025.
24	Wood Mackenzie Inc Top agencies DOI (Department of the Interior)	$73,857	0.1%	Rank history: not on the FY2021–FY2024 lists and #29 in FY2025; new, not ranked in Jul 2024–Jun 2025.
25	Electric Power Systems Inc. Top agencies NASA (National Aeronautics and Space Administration)	$60,648	<0.1%	Rank history: not on the FY2021–FY2024 lists and #20 in FY2025; up 6 since Jul 2024–Jun 2025.
26	New Energy Corporation Inc. Top agencies Army (Department of the Army)	$49,800	<0.1%	Rank history: not on the FY2021–FY2024 lists and #32 in FY2025; new, not ranked in Jul 2024–Jun 2025.
27	Situation Awareness Systems LLC Top agencies NASA (National Aeronautics and Space Administration)	$40,000	<0.1%	Rank history: not on the FY2021–FY2023 lists, #51 in FY2024 and #34 in FY2025; up 11 since Jul 2024–Jun 2025.
28	University System of New Hampshire Top agencies NASA (National Aeronautics and Space Administration)	$38,882	<0.1%	Rank history: not on the FY2021–FY2024 lists and #35 in FY2025; new, not ranked in Jul 2024–Jun 2025.
29	Huntington Ingalls Industries, Inc. Through HII Mission Technologies Corp Top agencies Navy (Department of the Navy)	$37,000	<0.1%	Rank history: not on the FY2021 list, #46 in FY2022, not on the FY2023 list, #13 in FY2024 and #16 in FY2025; down 16 since Jul 2024–Jun 2025.
30	Versar, Inc. Top agencies DOI (Department of the Interior)	$36,518	<0.1%	Rank history: not on the FY2021–FY2024 lists and #36 in FY2025; new, not ranked in Jul 2024–Jun 2025.
31	Battel Engineering Inc. Top agencies NASA (National Aeronautics and Space Administration)	$36,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #30 in FY2025; up 8 since Jul 2024–Jun 2025.
32	IPD Latin America, LLC Top agencies DOE (Department of Energy)	$28,858	<0.1%	Rank history: not on the FY2021–FY2022 lists, #34 in FY2023, #45 in FY2024 and #31 in FY2025; up 5 since Jul 2024–Jun 2025.
33	Hydromechanica Inc. Top agencies Army (Department of the Army)	$24,835	<0.1%	Rank history: not on the FY2021–FY2024 lists and #38 in FY2025; new, not ranked in Jul 2024–Jun 2025.
34	Yes Energy LLC Top agencies DOE (Department of Energy)	$20,800	<0.1%	Rank history: not on the FY2021–FY2024 lists and #39 in FY2025; up 8 since Jul 2024–Jun 2025.
35	Symmetry Resources, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$8,100	<0.1%	Rank history: #45 in FY2021, #63 in FY2022, not on the FY2023–FY2024 lists and #33 in FY2025; up 5 since Jul 2024–Jun 2025.

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 $133 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. 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.
• Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
• Rank changes compare with Jul 2024–Jun 2025. "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.
• Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

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