Top 29 Defense Nuclear Facilities Safety Board Contractors, FY2025

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Bristol Bay Native Corporation Through Eagle Integrated Services, LLC Top NAICS codes 541513 Computer Facilities Management Services	$2,843,357	44.6%	Rank history: not on the FY2022–FY2024 lists; new.
2	Ldss, Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$1,000,440	15.7%	Rank history: not on the FY2022–FY2024 lists; new.
3	TFC Consulting Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$727,625	11.4%	Rank history: not on the FY2022 list, #3 in FY2023 and #3 in FY2024; unchanged since FY2024.
4	Prometheus Digital LLC Top NAICS codes 541512 Computer Systems Design Services	$280,541	4.4%	Rank history: not on the FY2022–FY2023 lists and #4 in FY2024; unchanged since FY2024.
5	Minburn Technology Group, LLC Top NAICS codes 541519 Other Computer Related Services	$273,352	4.3%	Rank history: not on the FY2022–FY2024 lists; new.
6	H2 PCI LLC Top NAICS codes 541519 Other Computer Related Services	$161,936	2.5%	Rank history: not on the FY2022–FY2024 lists; new.
7	Allium US Holding LLC Top NAICS codes 519130 Internet Publishing and Broadcasting and Web Search Portals	$142,332	2.2%	Rank history: not on the FY2022–FY2024 lists; new.
8	Verizon Through Verizon Business Network Services LLC Top NAICS codes 517110 Wired Telecommunications Carriers	$133,980	2.1%	Rank history: not on the FY2022–FY2023 lists and #6 in FY2024; down 2 since FY2024.
9	At&T Inc. Through Att Mobility LLC Top NAICS codes 517312 Wireless Telecommunications Carriers (except Satellite)	$95,467	1.5%	Rank history: #10 in FY2022, #8 in FY2023 and #11 in FY2024; up 2 since FY2024.
10	New TECH Solutions, Inc. Top NAICS codes 541519 Other Computer Related Services	$88,427	1.4%	Rank history: not on the FY2022–FY2023 lists and #5 in FY2024; down 5 since FY2024.
11	Advanced Computer Concepts, Inc. Top NAICS codes 541519 Other Computer Related Services	$78,782	1.2%	Rank history: not on the FY2022 list, #15 in FY2023 and #12 in FY2024; up 1 since FY2024.
12	S&P Global Inc. Top NAICS codes 513120 Periodical Publishers	$76,344	1.2%	Rank history: not on the FY2022–FY2024 lists; new.
13	Kalijarvi, Chuzi, Newman & Fitch, P.C Top NAICS codes 541110 Offices of Lawyers	$75,000	1.2%	Rank history: not on the FY2022–FY2023 lists and #26 in FY2024; up 13 since FY2024.
14	Countertrade Products, Inc. Top NAICS codes 541519 Other Computer Related Services	$65,916	1.0%	Rank history: #13 in FY2022, not on the FY2023 list and #14 in FY2024; unchanged since FY2024.
15	Access Intelligence LLC Top NAICS codes 513120 Periodical Publishers	$51,132	0.8%	Rank history: #14 in FY2022, #17 in FY2023 and #16 in FY2024; up 1 since FY2024.
16	Govsmart, Inc. Top NAICS codes 541519 Other Computer Related Services	$51,007	0.8%	Rank history: not on the FY2022–FY2024 lists; new.
17	Puyenpa Technologies LLC Top NAICS codes 238210 Electrical Contractors and Other Wiring Installation Contractors	$37,000	0.6%	Rank history: not on the FY2022–FY2024 lists; new.
18	Software Information Resource Corp Top NAICS codes 541519 Other Computer Related Services	$25,625	0.4%	Rank history: not on the FY2022–FY2023 lists and #13 in FY2024; down 5 since FY2024.
19	Redhawk It Solutions, LLC Top NAICS codes 541519 Other Computer Related Services	$19,659	0.3%	Rank history: not on the FY2022–FY2024 lists; new.
20	West Publishing Corporation Top NAICS codes 519210 Libraries and Archives	$18,794	0.3%	Rank history: not on the FY2022–FY2024 lists; new.
21	Fiscalnote Inc. Top NAICS codes 519290 Web Search Portals and All Other Information Services	$15,450	0.2%	Rank history: not on the FY2022–FY2024 lists; new.
22	Page After Page Business Systems, Inc. Top NAICS codes 532420 Office Machinery and Equipment Rental and Leasing	$13,152	0.2%	Rank history: not on the FY2022–FY2023 lists and #24 in FY2024; up 2 since FY2024.
23	Immersive Concepts L.L.C. Top NAICS codes 238220 Plumbing, Heating, and Air-Conditioning Contractors	$12,223	0.2%	Rank history: not on the FY2022–FY2023 lists and #23 in FY2024; unchanged since FY2024.
24	LRP Publications, Inc. Top NAICS codes 541519 Other Computer Related Services	$11,693	0.2%	Rank history: not on the FY2022 list, #25 in FY2023 and #25 in FY2024; up 1 since FY2024.
25	ManTech International Corporation Through Unison Virtual Acquisition Office LLC Top NAICS codes 513210 Software Publishers	$9,819	0.2%	Rank history: not on the FY2022–FY2024 lists; new.
26	Carahsoft Technology Corp Top NAICS codes 511210 Software Publishers	$9,776	0.2%	Rank history: not on the FY2022–FY2024 lists; new.
27	Merlin International, Inc. Top NAICS codes 334111 Electronic Computer Manufacturing	$8,250	0.1%	Rank history: #8 in FY2022, #12 in FY2023 and #17 in FY2024; down 10 since FY2024.
28	William S. Hein & Co., Inc. Top NAICS codes 519290 Web Search Portals and All Other Information Services	$7,722	0.1%	Rank history: not on the FY2022–FY2023 lists and #27 in FY2024; down 1 since FY2024.
29	Healthequity, Inc. Top NAICS codes 524292 Pharmacy Benefit Management and Other Third Party Administration of Insurance and Pension Funds	$1,099	<0.1%	Rank history: #25 in FY2022, #29 in FY2023 and #28 in FY2024; down 1 since FY2024.

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 $6.37 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 FY2022, #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.

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