Top 100 Contractors in PSC J999: Non-Nuclear Ship Repair (West), FY2023

Name: Top 100 Contractors in PSC J999: Non-Nuclear Ship Repair (West), FY2023
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2022 – Sep 30, 2023 Code page on GovTribe

The top 10 won 66% of FY2023 PSC J999 contract dollars

Contract obligations: $1,863,584,837 Net of deobligations, by contracts coded PSC J999
Contractors: 171 Parent companies with an obligation
Largest contractor: Thomas Scientific LLC $314 million, 15.2% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Thomas Scientific LLC 3 awardees, including Vigor Marine LLC, Vigor Works LLC and Vigor Alaska LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) DHS (Department of Homeland Security)	$314,234,575	15.2%	Rank history: #2 in FY2021, #1 in FY2022, #2 in FY2024 and not on the FY2025 list; unchanged since FY2022.
2	General Dynamics Corporation 3 awardees, including National Steel and Shipbuilding Company, Metro Machine Corp and General Dynamics Information Technology, Inc. Top agencies Navy (Department of the Navy)	$239,121,133	11.5%	Rank history: #1 in FY2021, #3 in FY2022, #7 in FY2024 and #2 in FY2025; up 1 since FY2022.
3	BAE Systems PLC 2 awardees, including BAE Systems Maritime Solutions San Diego Inc. Top agencies Navy (Department of the Navy)	$181,144,119	8.7%	Rank history: #3 in FY2021, #2 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
4	Continental Maritime of San Diego, LLC Top agencies Navy (Department of the Navy)	$174,384,685	8.4%	Rank history: #12 in FY2021, #10 in FY2022, #61 in FY2024 and not on the FY2025 list; up 6 since FY2022.
5	Mare Island Dry Dock LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$92,492,348	4.5%	Rank history: #8 in FY2021, #4 in FY2022, #12 in FY2024 and #17 in FY2025; down 1 since FY2022.
6	Huntington Ingalls Industries, Inc. Through Huntington Ingalls Inc. Top agencies Navy (Department of the Navy)	$81,748,044	3.9%	Rank history: #4 in FY2021, #5 in FY2022, #3 in FY2024 and #4 in FY2025; down 1 since FY2022.
7	Sumitomo Heavy Industries, Ltd. Top agencies Navy (Department of the Navy)	$76,977,124	3.7%	Rank history: #6 in FY2021, #6 in FY2022, #6 in FY2024 and #7 in FY2025; down 1 since FY2022.
8	Epsilon Systems Solutions Inc. 4 awardees Top agencies Navy (Department of the Navy)	$66,822,567	3.2%	Rank history: #9 in FY2021, #8 in FY2022, #8 in FY2024 and #6 in FY2025; unchanged since FY2022.
9	Southcoast Welding & Manufacturing, Llc. Top agencies Navy (Department of the Navy)	$66,579,171	3.2%	Rank history: #23 in FY2021, #16 in FY2022, #9 in FY2024 and #10 in FY2025; up 7 since FY2022.
10	Austal Limited 2 awardees, including Austal Usa, LLC and Austal Ships PTY Ltd Top agencies Navy (Department of the Navy)	$66,468,085	3.2%	Rank history: not on the FY2021 list, #9 in FY2022, #15 in FY2024 and not on the FY2025 list; down 1 since FY2022.
11	Pacific Shipyards International, LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) Army (Department of the Army)	$63,841,703	3.1%	Rank history: #17 in FY2021, #25 in FY2022, #5 in FY2024 and #5 in FY2025; up 14 since FY2022.
12	Yokohama Engineering Works, Ltd. Top agencies Army (Department of the Army)	$40,290,000	1.9%	Rank history: not on the FY2021 list, #75 in FY2022, #14 in FY2024 and #13 in FY2025; up 63 since FY2022.
13	Cabras Marine Corporation Top agencies Navy (Department of the Navy)	$34,927,514	1.7%	Rank history: #13 in FY2021, #17 in FY2022, #18 in FY2024 and #11 in FY2025; up 4 since FY2022.
14	National University of Singapore Through Seatrium Repairs & Upgrades Pte. Ltd. Top agencies Navy (Department of the Navy)	$31,412,345	1.5%	Rank history: #53 in FY2021, #13 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
15	Unithai Shipyard & Engineering Limited Through Unithai Shipyard & Engineering Limited - Branch Top agencies Navy (Department of the Navy)	$28,331,365	1.4%	Rank history: #40 in FY2021, #18 in FY2022 and not on the FY2024–FY2025 lists; up 3 since FY2022.
16	Propulsion Controls Engineering, LLC 3 awardees Top agencies Navy (Department of the Navy)	$23,453,378	1.1%	Rank history: #31 in FY2021, #41 in FY2022, #19 in FY2024 and #18 in FY2025; up 25 since FY2022.
17	East Coast Repair & Fabrication, LLC Top agencies Navy (Department of the Navy)	$19,708,612	1.0%	Rank history: #14 in FY2021, #22 in FY2022, #28 in FY2024 and #51 in FY2025; up 5 since FY2022.
18	Delphinus Engineering LLC Top agencies Navy (Department of the Navy)	$15,950,236	0.8%	Rank history: #72 in FY2021, #52 in FY2022, #23 in FY2024 and #20 in FY2025; up 34 since FY2022.
19	Rolls-Royce Military Aero Engines Ltd 2 awardees, including Rolls-Royce Solutions America Inc. and Rolls-Royce Marine North America Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy)	$12,611,523	0.6%	Rank history: #32 in FY2021, #33 in FY2022, #59 in FY2024 and not on the FY2025 list; up 14 since FY2022.
20	Orbis Sibro Inc. Top agencies Navy (Department of the Navy)	$12,297,063	0.6%	Rank history: #63 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 156 since FY2022.
21	Shinko Co.,Ltd. Top agencies Navy (Department of the Navy)	$12,254,570	0.6%	Rank history: #15 in FY2021, #23 in FY2022, #27 in FY2024 and #34 in FY2025; up 2 since FY2022.
22	Jag Alaska Inc. Top agencies DHS (Department of Homeland Security)	$10,465,489	0.5%	Rank history: #86 in FY2021, #31 in FY2022 and not on the FY2024–FY2025 lists; up 9 since FY2022.
23	Confluence Corp Top agencies Navy (Department of the Navy)	$10,249,502	0.5%	Rank history: #54 in FY2021, #32 in FY2022, #42 in FY2024 and #38 in FY2025; up 9 since FY2022.
24	Guam Industrial Services Inc. Top agencies Navy (Department of the Navy)	$8,605,363	0.4%	Rank history: #38 in FY2021, #21 in FY2022, #20 in FY2024 and #29 in FY2025; down 3 since FY2022.
25	ST Engineering Marine Ltd. 2 awardees Top agencies Navy (Department of the Navy)	$7,786,680	0.4%	Rank history: not on the FY2021 list, #62 in FY2022, #79 in FY2024 and not on the FY2025 list; up 37 since FY2022.
26	Subic Drydock Corporation Top agencies Navy (Department of the Navy)	$7,469,694	0.4%	Rank history: not on the FY2021 list, #90 in FY2022, #22 in FY2024 and #33 in FY2025; up 64 since FY2022.
27	Bollinger Shipyards Inc Through Bollinger Shipyards Lockport, L.L.C. Top agencies DHS (Department of Homeland Security)	$7,392,140	0.4%	Rank history: #48 in FY2021, #57 in FY2022, #90 in FY2024 and not on the FY2025 list; up 30 since FY2022.
28	General Electric Company Through GE Energy Power Conversion USA Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy)	$6,978,051	0.3%	Rank history: not on the FY2021 list, #48 in FY2022, #65 in FY2024 and not on the FY2025 list; up 20 since FY2022.
29	Fincantieri Marine Systems North America Inc. Top agencies Navy (Department of the Navy)	$5,759,272	0.3%	Rank history: not on the FY2021 list, #37 in FY2022, #71 in FY2024 and not on the FY2025 list; up 8 since FY2022.
30	Integrated Marine Services, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$5,651,062	0.3%	Rank history: #18 in FY2021, #26 in FY2022, #45 in FY2024 and #31 in FY2025; down 4 since FY2022.
31	Marisco, Ltd. 2 awardees, including American Metal Bearing Co Top agencies Navy (Department of the Navy)	$5,590,066	0.3%	Rank history: #44 in FY2021, #42 in FY2022, #26 in FY2024 and #25 in FY2025; up 11 since FY2022.
32	Volkswagen Aktiengesellschaft 2 awardees, including Everllence Middle East and Africa L.l.c and Everllence Singapore Pte. Ltd. Top agencies Navy (Department of the Navy)	$5,564,185	0.3%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2024 and #62 in FY2025; new.
33	Hosei Co., Ltd. Top agencies Navy (Department of the Navy)	$5,496,156	0.3%	Rank history: #39 in FY2021, #50 in FY2022, #57 in FY2024 and #55 in FY2025; up 17 since FY2022.
34	Ghostrock Systems Development LLC Top agencies Navy (Department of the Navy)	$5,492,028	0.3%	Rank history: not on the FY2021 list, #43 in FY2022, #44 in FY2024 and #40 in FY2025; up 9 since FY2022.
35	Toyo Trust Tokki Co. Ltd. Top agencies Navy (Department of the Navy)	$5,430,186	0.3%	Rank history: #45 in FY2021, #59 in FY2022, #51 in FY2024 and not on the FY2025 list; up 24 since FY2022.
36	Yamaguchi Machinery Co.,Ltd. Top agencies Navy (Department of the Navy)	$5,277,748	0.3%	Rank history: #34 in FY2021, #39 in FY2022, #40 in FY2024 and #44 in FY2025; up 3 since FY2022.
37	MAK Technologies Inc. Through ST Engineering Marine Ltd. Top agencies Navy (Department of the Navy)	$5,272,064	0.3%	Rank history: not on the FY2021–FY2022 lists, #11 in FY2024 and #14 in FY2025; new.
38	Northrop Grumman Corporation Through Northrop Grumman Systems Corporation Top agencies Navy (Department of the Navy)	$5,103,864	0.2%	Rank history: #92 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 63 since FY2022.
39	Fairbanks Morse LLC 2 awardees Top agencies Navy (Department of the Navy)	$5,044,853	0.2%	Rank history: #50 in FY2021, #65 in FY2022 and not on the FY2024–FY2025 lists; up 26 since FY2022.
40	QED Systems, Inc. Top agencies Navy (Department of the Navy)	$4,770,208	0.2%	Rank history: not on the FY2021 list, #63 in FY2022, #97 in FY2024 and #36 in FY2025; up 23 since FY2022.
41	Curtiss-Wright Corporation 2 awardees, including Curtiss-Wright Electro-Mechanical Corporation and Curtiss-Wright Flow Control Corporation Top agencies Navy (Department of the Navy)	$4,693,655	0.2%	Rank history: #68 in FY2021, #38 in FY2022, #49 in FY2024 and not on the FY2025 list; down 3 since FY2022.
42	Bay Ship & Yacht Co 2 awardees, including Bay Marine Boatworks, Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security)	$4,370,888	0.2%	Rank history: #46 in FY2021, #7 in FY2022, #33 in FY2024 and #42 in FY2025; down 35 since FY2022.
43	Marunda Private Limited Top agencies Navy (Department of the Navy)	$4,323,993	0.2%	Rank history: not on the FY2021–FY2022 lists, #63 in FY2024 and #72 in FY2025; up 121 since FY2022.
44	Jonghap Maritime Inc. Top agencies Navy (Department of the Navy)	$4,086,032	0.2%	Rank history: #41 in FY2021, #40 in FY2022, #43 in FY2024 and #50 in FY2025; down 4 since FY2022.
45	Federal Marine & Defense Services LLC Top agencies DHS (Department of Homeland Security)	$4,025,089	0.2%	Rank history: #35 in FY2021, #56 in FY2022, #35 in FY2024 and #45 in FY2025; up 11 since FY2022.
46	Lake Union Drydock Company Top agencies DHS (Department of Homeland Security)	$4,015,211	0.2%	Rank history: #27 in FY2021, #24 in FY2022, #34 in FY2024 and #39 in FY2025; down 22 since FY2022.
47	International Marine Company Top agencies Navy (Department of the Navy)	$3,672,188	0.2%	Rank history: #51 in FY2021, #34 in FY2022, #53 in FY2024 and #43 in FY2025; down 13 since FY2022.
48	Vanport Marine, Inc. Top agencies DHS (Department of Homeland Security)	$3,526,357	0.2%	Rank history: not on the FY2021 list, #53 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
49	Coastal Marine Services, Inc. Top agencies Navy (Department of the Navy)	$3,421,434	0.2%	Rank history: #67 in FY2021, #64 in FY2022, #55 in FY2024 and #49 in FY2025; up 15 since FY2022.
50	C & S Services, Inc. Top agencies Navy (Department of the Navy)	$3,329,128	0.2%	Rank history: #52 in FY2021, #60 in FY2022 and not on the FY2024–FY2025 lists; up 10 since FY2022.
51	Al Larson Boat Shop Top agencies Navy (Department of the Navy)	$3,227,512	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #54 in FY2025; new.
52	Renk America LLC Top agencies Navy (Department of the Navy)	$2,964,382	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
53	Lyon Shipyard Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$2,878,428	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
54	Metal Trades Inc Top agencies Army (Department of the Army)	$2,131,661	0.1%	Rank history: not on the FY2021–FY2022 lists, #73 in FY2024 and #97 in FY2025; new.
55	American Maritime Holdings, LLC Through Tecnico Corporation Top agencies Navy (Department of the Navy)	$1,973,177	0.1%	Rank history: not on the FY2021 list, #49 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
56	Platypus Marine Inc Top agencies DHS (Department of Homeland Security)	$1,970,058	0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #47 in FY2025; new.
57	Advanced Integrated Technologies, LLC Top agencies Navy (Department of the Navy)	$1,861,716	0.1%	Rank history: not on the FY2021 list, #46 in FY2022, #37 in FY2024 and not on the FY2025 list; down 11 since FY2022.
58	Chae and Nam Universe Inc. Top agencies Navy (Department of the Navy)	$1,627,601	0.1%	Rank history: #64 in FY2021, #51 in FY2022, #52 in FY2024 and #56 in FY2025; down 7 since FY2022.
59	Thoma-Sea Marine Constructors, L.L.C. Top agencies DHS (Department of Homeland Security)	$1,550,910	0.1%	Rank history: not on the FY2021 list, #35 in FY2022 and not on the FY2024–FY2025 lists; down 24 since FY2022.
60	Sunjin Entech Co.,Ltd. Top agencies Navy (Department of the Navy)	$1,515,871	0.1%	Rank history: #47 in FY2021, #12 in FY2022, #54 in FY2024 and not on the FY2025 list; down 48 since FY2022.
61	Bay City Marine, Inc. Top agencies Navy (Department of the Navy)	$1,494,896	0.1%	Rank history: #29 in FY2021, #84 in FY2022, #76 in FY2024 and #48 in FY2025; up 23 since FY2022.
62	Alaska Boiler & Burner LLC Top agencies USAF (Department of the Air Force)	$1,325,842	0.1%	Rank history: not on the FY2021 list, #67 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
63	IHC America Inc. Top agencies Army (Department of the Army)	$1,242,754	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
64	Mitsubishi Heavy Industries, Ltd. Top agencies Navy (Department of the Navy)	$1,232,623	0.1%	Rank history: #19 in FY2021, #15 in FY2022, #13 in FY2024 and #16 in FY2025; down 49 since FY2022.
65	Motoyama Co., Ltd. Top agencies Navy (Department of the Navy)	$1,216,407	0.1%	Rank history: #57 in FY2021, #69 in FY2022, #69 in FY2024 and #64 in FY2025; up 4 since FY2022.
66	SAN Denshi Kogyo Co. Ltd. Top agencies Navy (Department of the Navy)	$1,137,204	0.1%	Rank history: #62 in FY2021, #74 in FY2022 and not on the FY2024–FY2025 lists; up 8 since FY2022.
67	Pacific Ship Repair & Fabrication, Inc. Top agencies Navy (Department of the Navy)	$1,053,430	0.1%	Rank history: #10 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
68	Everett Ship Repair, LLC Top agencies Army (Department of the Army)	$998,653	<0.1%	Rank history: not on the FY2021 list, #44 in FY2022 and not on the FY2024–FY2025 lists; down 24 since FY2022.
69	Standard Inspection Services Top agencies Navy (Department of the Navy)	$855,349	<0.1%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2024 and #27 in FY2025; up 108 since FY2022.
70	Jag Industrial Services, Inc. Top agencies DHS (Department of Homeland Security)	$792,362	<0.1%	Rank history: #28 in FY2021, #28 in FY2022, #16 in FY2024 and #19 in FY2025; down 42 since FY2022.
71	ITO Iron Works & Shipbuilding Co. Ltd. Top agencies Navy (Department of the Navy)	$755,193	<0.1%	Rank history: not on the FY2021 list, #73 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
72	Phoenix Marine LLC Top agencies DHS (Department of Homeland Security)	$736,739	<0.1%	Rank history: #91 in FY2021, #82 in FY2022 and not on the FY2024–FY2025 lists; up 10 since FY2022.
73	Seatrium Repairs & Upgrades PTE. Ltd. Top agencies Navy (Department of the Navy)	$656,412	<0.1%	Rank history: not on the FY2021–FY2022 lists, #10 in FY2024 and not on the FY2025 list; new.
74	Colonna's Ship Yard, Incorporated Top agencies Navy (Department of the Navy)	$651,941	<0.1%	Rank history: #21 in FY2021, not on the FY2022 list, #60 in FY2024 and #66 in FY2025; returned.
75	United Support Services Inc. Top agencies Navy (Department of the Navy)	$611,738	<0.1%	Rank history: not on the FY2021–FY2022 lists, #88 in FY2024 and not on the FY2025 list; new.
76	DLP Enterprises, Inc. Top agencies Navy (Department of the Navy)	$608,963	<0.1%	Rank history: #75 in FY2021, #77 in FY2022, #74 in FY2024 and #80 in FY2025; up 1 since FY2022.
77	Johnson Controls Industries Through Johnson Controls Building Automation Systems, LLC Top agencies Navy (Department of the Navy)	$602,164	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
78	Sri International Top agencies Army (Department of the Army)	$547,562	<0.1%	Rank history: #84 in FY2021, #89 in FY2022, not on the FY2024 list and #94 in FY2025; up 11 since FY2022.
79	Imeco Inc. Top agencies Navy (Department of the Navy)	$538,056	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 55 since FY2022.
80	Colonna's Shipyard West, LLC Top agencies Navy (Department of the Navy)	$524,945	<0.1%	Rank history: #58 in FY2021, #58 in FY2022, #89 in FY2024 and not on the FY2025 list; down 22 since FY2022.
81	Caterpillar Inc. Top agencies Navy (Department of the Navy)	$510,189	<0.1%	Rank history: not on the FY2021–FY2022 lists, #87 in FY2024 and not on the FY2025 list; new.
82	Marine & Restaurant Fabricators, Inc. Top agencies Navy (Department of the Navy)	$505,664	<0.1%	Rank history: #87 in FY2021, not on the FY2022 list, not on the FY2024 list and #96 in FY2025; up 40 since FY2022.
83	South Bay Sand Blasting and Tank Cleaning, Inc. Top agencies Navy (Department of the Navy)	$441,767	<0.1%	Rank history: #66 in FY2021, not on the FY2022 list, #68 in FY2024 and #81 in FY2025; up 57 since FY2022.
84	Inc.. A California Corporation Bermingham Controls Top agencies Navy (Department of the Navy)	$438,832	<0.1%	Rank history: #99 in FY2021, not on the FY2022 list, not on the FY2024 list and #59 in FY2025; returned.
85	Lake Shore Systems, Inc. Top agencies Navy (Department of the Navy)	$429,506	<0.1%	Rank history: not on the FY2021 list, #80 in FY2022 and not on the FY2024–FY2025 lists; down 5 since FY2022.
86	Gravois Aluminum Boats LLC Through Shark Tech, LLC Top agencies DHS (Department of Homeland Security)	$414,586	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
87	Larsen & Toubro Ltd. Top agencies Navy (Department of the Navy)	$370,292	<0.1%	Rank history: not on the FY2021–FY2022 lists, #46 in FY2024 and #70 in FY2025; new.
88	Reedsport Machine & Fabrication, LLC Top agencies DHS (Department of Homeland Security)	$363,644	<0.1%	Rank history: #89 in FY2021, #79 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
89	Shin-Itoman Ship Yard Co.,Ltd Top agencies DLA (Defense Logistics Agency)	$355,657	<0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #85 in FY2025; up 61 since FY2022.
90	Japan Marine United Corporation Top agencies Navy (Department of the Navy)	$352,548	<0.1%	Rank history: #37 in FY2021, #19 in FY2022 and not on the FY2024–FY2025 lists; down 71 since FY2022.
91	L3Harris Technologies, Inc. 2 awardees, including L3 Technologies, Inc. and L3Harris Maritime Services Inc. Top agencies Navy (Department of the Navy)	$340,602	<0.1%	Rank history: not on the FY2021–FY2022 lists, #72 in FY2024 and not on the FY2025 list; up 11 since FY2022.
92	Applied Technical Services Inc. Top agencies Navy (Department of the Navy)	$313,530	<0.1%	Rank history: not on the FY2021 list, #99 in FY2022 and not on the FY2024–FY2025 lists; up 7 since FY2022.
93	Surface Technologies Corporation Top agencies Navy (Department of the Navy)	$312,888	<0.1%	Rank history: #71 in FY2021, not on the FY2022 list, not on the FY2024 list and #57 in FY2025; up 81 since FY2022.
94	Adept Process Services, Inc. Top agencies Navy (Department of the Navy)	$300,932	<0.1%	Rank history: #61 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
95	Modutech Marine, Inc. Top agencies DHS (Department of Homeland Security)	$288,106	<0.1%	Rank history: not on the FY2021 list, #96 in FY2022 and not on the FY2024–FY2025 lists; up 1 since FY2022.
96	Kingfisher Co., Inc. Top agencies Navy (Department of the Navy)	$274,523	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 51 since FY2022.
97	Shaka Engineering Inc. Top agencies Navy (Department of the Navy)	$273,629	<0.1%	Rank history: #95 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 20 since FY2022.
98	RIX Industries Top agencies Navy (Department of the Navy)	$264,351	<0.1%	Rank history: not on the FY2021–FY2022 lists, #80 in FY2024 and #83 in FY2025; up 7 since FY2022.
99	ST. Johns Boat Company Top agencies DHS (Department of Homeland Security)	$262,011	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
100	International Marine and Industrial Applicators LLC Through Imia, LLC Top agencies Navy (Department of the Navy)	$257,425	<0.1%	Rank history: not on the FY2021 list, #68 in FY2022, #75 in FY2024 and not on the FY2025 list; down 32 since FY2022.

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100 of 171 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 $2.07 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.

Quick answers

Who were the top 10 PSC J999 contractors in FY2023?

1. Thomas Scientific LLC ($314M), 2. General Dynamics Corporation ($239M), 3. BAE Systems PLC ($181M), 4. Continental Maritime of San Diego, LLC ($174M), 5. Mare Island Dry Dock LLC ($92.5M), 6. Huntington Ingalls Industries, Inc. ($81.7M), 7. Sumitomo Heavy Industries, Ltd. ($77M), 8. Epsilon Systems Solutions Inc. ($66.8M), 9. Southcoast Welding & Manufacturing, Llc. ($66.6M), 10. Austal Limited ($66.5M).

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