Top 45 Contractors in PSC 4470: Nuclear Reactors, FY2023

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Fluor Corporation Through Fluor Marine Propulsion, LLC Top agencies Navy (Department of the Navy)	$1,541,864,820	49.8%	Rank history: #2 in FY2021, #2 in FY2022, #1 in FY2024 and #1 in FY2025; up 1 since FY2022.
2	Bechtel Corp Through Bechtel Plant Machinery, Inc. Top agencies Navy (Department of the Navy)	$1,429,547,739	46.2%	Rank history: #1 in FY2021, #1 in FY2022, #2 in FY2024 and #5 in FY2025; down 1 since FY2022.
3	General Dynamics Corporation Through Electric Boat Corporation Top agencies Navy (Department of the Navy)	$34,371,506	1.1%	Rank history: #4 in FY2021, #3 in FY2022, #4 in FY2024 and #3 in FY2025; unchanged since FY2022.
4	Centrus Energy Corp. Through American Centrifuge Operating, LLC Top agencies DOE (Department of Energy)	$33,350,000	1.1%	Rank history: not on the FY2021–FY2022 lists, #5 in FY2024 and not on the FY2025 list; new.
5	Westinghouse Electric Company LLC Through Westinghouse Government Services LLC Top agencies DOE (Department of Energy)	$15,568,775	0.5%	Rank history: #3 in FY2021, #4 in FY2022, #8 in FY2024 and not on the FY2025 list; down 1 since FY2022.
6	Huntington Ingalls Industries, Inc. Through Huntington Ingalls Inc. Top agencies Navy (Department of the Navy)	$10,209,110	0.3%	Rank history: #5 in FY2021, #5 in FY2022, #7 in FY2024 and #6 in FY2025; down 1 since FY2022.
7	Aptim Federal Services LLC Top agencies Navy (Department of the Navy)	$4,592,829	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
8	Esco Technologies Inc. Through Vacco Industries Top agencies Navy (Department of the Navy)	$1,880,605	0.1%	Rank history: #8 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
9	Genuine Parts Company Through Motion Industries, Inc. Top agencies Navy (Department of the Navy)	$911,536	<0.1%	Rank history: #12 in FY2021, #8 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
10	Frham Safety Products, LLC Top agencies Navy (Department of the Navy)	$701,452	<0.1%	Rank history: not on the FY2021 list, #31 in FY2022, #12 in FY2024 and #7 in FY2025; up 21 since FY2022.
11	Dibert Valve and Fitting Company, Incorporated 3 awardees Top agencies Navy (Department of the Navy)	$331,244	<0.1%	Rank history: #10 in FY2021, #10 in FY2022, #28 in FY2024 and #18 in FY2025; down 1 since FY2022.
12	Painter Tool Incorporated Top agencies Navy (Department of the Navy)	$312,596	<0.1%	Rank history: #11 in FY2021, #11 in FY2022, #20 in FY2024 and #24 in FY2025; down 1 since FY2022.
13	General Nuclear Corp Top agencies Navy (Department of the Navy)	$203,822	<0.1%	Rank history: #15 in FY2021, #21 in FY2022 and not on the FY2024–FY2025 lists; up 8 since FY2022.
14	K2 Manufacturing, Inc. Top agencies Navy (Department of the Navy)	$195,114	<0.1%	Rank history: not on the FY2021 list, #12 in FY2022, #31 in FY2024 and not on the FY2025 list; down 2 since FY2022.
15	General Aire Systems, Inc. Top agencies Navy (Department of the Navy)	$173,164	<0.1%	Rank history: not on the FY2021 list, #18 in FY2022 and not on the FY2024–FY2025 lists; up 3 since FY2022.
16	Greater Maryland Tool & Mfg. Corp. Top agencies Navy (Department of the Navy)	$147,621	<0.1%	Rank history: #34 in FY2021, #26 in FY2022, #44 in FY2024 and #32 in FY2025; up 10 since FY2022.
17	Norcatec LLC 2 awardees Top agencies Navy (Department of the Navy)	$125,541	<0.1%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2024 and #30 in FY2025; new.
18	U.s.a. Spares Inc. Top agencies Navy (Department of the Navy)	$122,857	<0.1%	Rank history: #19 in FY2021, #22 in FY2022, #26 in FY2024 and #21 in FY2025; up 4 since FY2022.
19	Rich Industries Inc. Top agencies Navy (Department of the Navy)	$93,448	<0.1%	Rank history: #25 in FY2021, #25 in FY2022, #13 in FY2024 and #16 in FY2025; up 6 since FY2022.
20	Linmarr Associates, Inc. Top agencies Navy (Department of the Navy)	$75,192	<0.1%	Rank history: #31 in FY2021, #37 in FY2022 and not on the FY2024–FY2025 lists; up 17 since FY2022.
21	Skovira Machine Co Top agencies Navy (Department of the Navy)	$56,320	<0.1%	Rank history: #28 in FY2021, #20 in FY2022, #23 in FY2024 and #10 in FY2025; down 1 since FY2022.
22	Marine Electric Systems Inc. Top agencies Navy (Department of the Navy)	$56,288	<0.1%	Rank history: #18 in FY2021, #9 in FY2022, #27 in FY2024 and #29 in FY2025; down 13 since FY2022.
23	In Speck Corp Top agencies Navy (Department of the Navy)	$50,839	<0.1%	Rank history: #20 in FY2021, #32 in FY2022, #33 in FY2024 and #23 in FY2025; up 9 since FY2022.
24	Mirion Technologies (CANBERRA) Inc. Through Mirion Technologies (Ist) Corporation Top agencies Navy (Department of the Navy)	$49,164	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
25	Adirondack Electronics Inc. Top agencies Navy (Department of the Navy)	$49,114	<0.1%	Rank history: #14 in FY2021, #19 in FY2022, #17 in FY2024 and #25 in FY2025; down 6 since FY2022.
26	Nasco Aerospace and Electronics LLC Top agencies Navy (Department of the Navy)	$47,317	<0.1%	Rank history: #16 in FY2021, #27 in FY2022, #19 in FY2024 and not on the FY2025 list; up 1 since FY2022.
27	Kampi Components Co Inc. Top agencies Navy (Department of the Navy)	$47,062	<0.1%	Rank history: #22 in FY2021, not on the FY2022 list, #18 in FY2024 and #26 in FY2025; returned.
28	Fluidyne Corporation Top agencies Navy (Department of the Navy)	$45,629	<0.1%	Rank history: #17 in FY2021, #17 in FY2022, #15 in FY2024 and #19 in FY2025; down 11 since FY2022.
29	MDF Technologies Inc. Top agencies Navy (Department of the Navy)	$43,425	<0.1%	Rank history: #38 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
30	Dumbo Defense Inc. Top agencies Navy (Department of the Navy)	$41,990	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
31	Daniels Manufacturing Corporation Top agencies Navy (Department of the Navy)	$27,388	<0.1%	Rank history: #45 in FY2021, #50 in FY2022, #40 in FY2024 and #47 in FY2025; up 19 since FY2022.
32	Beach Electronics & Manufacturing, Inc. Top agencies Navy (Department of the Navy)	$26,443	<0.1%	Rank history: #36 in FY2021, #53 in FY2022 and not on the FY2024–FY2025 lists; up 21 since FY2022.
33	D.l. Martin Co. Top agencies Navy (Department of the Navy)	$25,177	<0.1%	Rank history: not on the FY2021 list, #33 in FY2022, #45 in FY2024 and not on the FY2025 list; unchanged since FY2022.
34	DRS Naval Power Systems Inc. Top agencies Navy (Department of the Navy)	$15,888	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
35	Flowserve Corporation Top agencies Navy (Department of the Navy)	$13,580	<0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #46 in FY2025; new.
36	ISA (Wyoming) Corp Top agencies Navy (Department of the Navy)	$12,838	<0.1%	Rank history: #21 in FY2021, #14 in FY2022 and not on the FY2024–FY2025 lists; down 22 since FY2022.
37	Derbyshire Marine Products, LLC Top agencies Navy (Department of the Navy)	$10,480	<0.1%	Rank history: not on the FY2021 list, #45 in FY2022 and not on the FY2024–FY2025 lists; up 8 since FY2022.
38	Gaffel Equipment Top agencies Navy (Department of the Navy)	$8,276	<0.1%	Rank history: #42 in FY2021, #38 in FY2022, #35 in FY2024 and #42 in FY2025; unchanged since FY2022.
39	Kenneth Industrial Products, Inc. Top agencies Navy (Department of the Navy)	$7,500	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
40	Griswold Industries Top agencies Navy (Department of the Navy)	$7,074	<0.1%	Rank history: #44 in FY2021, #57 in FY2022, not on the FY2024 list and #44 in FY2025; up 17 since FY2022.
41	Statz Corp Top agencies Navy (Department of the Navy)	$6,064	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
42	Jo-Kell Inc. Top agencies Navy (Department of the Navy)	$5,120	<0.1%	Rank history: not on the FY2021 list, #49 in FY2022 and not on the FY2024–FY2025 lists; up 7 since FY2022.
43	Creative Logistics Ltd Top agencies Navy (Department of the Navy)	$3,250	<0.1%	Rank history: not on the FY2021 list, #28 in FY2022, not on the FY2024 list and #22 in FY2025; down 15 since FY2022.
44	III Williams LLC Top agencies Navy (Department of the Navy)	$765	<0.1%	Rank history: #46 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
45	Sealing Specialists & Service Co Top agencies Navy (Department of the Navy)	$742	<0.1%	Rank history: #47 in FY2021, #51 in FY2022, #41 in FY2024 and #45 in FY2025; up 6 since FY2022.

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 $3.09 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 2023 ran Oct 1, 2022 – Sep 30, 2023. 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 FY2022. "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 FY2022 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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