Top 100 Contractors in NAICS 3366: Ship and Boat Building, FY2023

Name: Top 100 Contractors in NAICS 3366: Ship and Boat Building, FY2023
Creator: GovTribe

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

The top 10 won 82% of FY2023 NAICS 3366 contract dollars

Contract obligations: $27,325,647,660 Net of deobligations, by contracts coded NAICS 3366 or a code under it
Contractors: 1,164 Parent companies with an obligation
Largest contractor: General Dynamics Corporation $10.1 billion, 36.2% 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	General Dynamics Corporation 11 awardees, including Electric Boat Corporation, Bath Iron Works Corporation and National Steel and Shipbuilding Company Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$10,142,057,336	36.2%	Rank history: #1 in FY2021, #1 in FY2022, #2 in FY2024 and #1 in FY2025; unchanged since FY2022.
2	Huntington Ingalls Industries, Inc. 4 awardees, including Huntington Ingalls Incorporated and HII Fleet Support Group LLC Top agencies Navy (Department of the Navy)	$9,221,209,761	32.9%	Rank history: #2 in FY2021, #2 in FY2022, #1 in FY2024 and #2 in FY2025; unchanged since FY2022.
3	BAE Systems PLC 7 awardees, including BAE Systems Maritime Solutions Norfolk Inc., BAE Systems Maritime Solutions San Diego Inc. and BAE Systems Maritime Solutions Jacksonville LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$976,616,446	3.5%	Rank history: #4 in FY2021, #4 in FY2022, #7 in FY2024 and #3 in FY2025; up 1 since FY2022.
4	Marinette Marine Corporation Top agencies Navy (Department of the Navy)	$612,460,585	2.2%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2024 and #76 in FY2025; new.
5	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) USSOCOM (United States Special Operations Command)	$458,652,423	1.6%	Rank history: #11 in FY2021, #7 in FY2022, #12 in FY2024 and not on the FY2025 list; up 2 since FY2022.
6	Austal Limited 2 awardees, including Austal Usa, LLC and Austal Ships PTY Ltd Top agencies Navy (Department of the Navy)	$427,298,365	1.5%	Rank history: #8 in FY2021, #3 in FY2022, #13 in FY2024 and not on the FY2025 list; down 3 since FY2022.
7	Eastern Shipbuilding Group, Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security)	$418,247,652	1.5%	Rank history: #6 in FY2021, #21 in FY2022, #22 in FY2024 and not on the FY2025 list; up 14 since FY2022.
8	Crowley Government Services Inc. 3 awardees, including Crowley Marine Services, Inc. Top agencies DOT (Department of Transportation) DHS (Department of Homeland Security)	$326,026,383	1.2%	Rank history: not on the FY2021 list, #44 in FY2022, #10 in FY2024 and #25 in FY2025; up 36 since FY2022.
9	Thoma-Sea Marine Constructors, L.L.C. Top agencies Commerce (Department of Commerce) DHS (Department of Homeland Security) Army (Department of the Army)	$324,549,674	1.2%	Rank history: #13 in FY2021, #77 in FY2022, #60 in FY2024 and #45 in FY2025; up 68 since FY2022.
10	Textron Inc. 2 awardees, including Textron Systems Corp Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$197,961,269	0.7%	Rank history: #61 in FY2021, #56 in FY2022, #11 in FY2024 and #4 in FY2025; up 46 since FY2022.
11	Bollinger Shipyards Inc 3 awardees, including Bollinger Shipyards Lockport, L.L.C., Chand, L.L.C. and Bollinger Quick Repair, L.L.C. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) Army (Department of the Army)	$195,767,190	0.7%	Rank history: #9 in FY2021, #10 in FY2022, #67 in FY2024 and not on the FY2025 list; down 1 since FY2022.
12	Continental Maritime of San Diego, LLC Top agencies Navy (Department of the Navy)	$174,909,087	0.6%	Rank history: #45 in FY2021, #37 in FY2022 and not on the FY2024–FY2025 lists; up 25 since FY2022.
13	VSE Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$153,576,777	0.5%	Rank history: #16 in FY2021, #11 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
14	Epsilon Systems Solutions Inc. 4 awardees Top agencies Navy (Department of the Navy)	$138,002,841	0.5%	Rank history: #18 in FY2021, #15 in FY2022, #17 in FY2024 and #16 in FY2025; up 1 since FY2022.
15	Lockheed Martin Corporation 4 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$134,168,215	0.5%	Rank history: #15 in FY2021, #9 in FY2022, not on the FY2024 list and #11 in FY2025; down 6 since FY2022.
16	Ship Colonna'S Yard Incorporated 2 awardees, including Colonna's Ship Yard, Incorporated and Colonna's Shipyard Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) Commerce (Department of Commerce)	$105,059,671	0.4%	Rank history: #19 in FY2021, #14 in FY2022, #30 in FY2024 and #23 in FY2025; down 2 since FY2022.
17	E F E News Services US Inc 2 awardees, including Navantia, S.a., S.m.e. Top agencies Navy (Department of the Navy)	$103,340,493	0.4%	Rank history: #36 in FY2021, #19 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
18	RTX Corporation 5 awardees, including Raytheon Company, Goodrich Corporation and Winslow Marine Products Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$101,536,376	0.4%	Rank history: #26 in FY2021, #27 in FY2022 and not on the FY2024–FY2025 lists; up 9 since FY2022.
19	Alabama Shipyard LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$101,113,518	0.4%	Rank history: #27 in FY2021, #28 in FY2022, #23 in FY2024 and #24 in FY2025; up 9 since FY2022.
20	Mare Island Dry Dock LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) Commerce (Department of Commerce)	$99,789,934	0.4%	Rank history: #31 in FY2021, #16 in FY2022, #39 in FY2024 and #63 in FY2025; down 4 since FY2022.
21	American Maritime Holdings, LLC 2 awardees, including Marine Hydraulics International, LLC and Tecnico Corporation Top agencies Navy (Department of the Navy)	$92,085,602	0.3%	Rank history: #10 in FY2021, #13 in FY2022, #18 in FY2024 and #52 in FY2025; down 8 since FY2022.
22	Detyens Shipyards Inc. 2 awardees Top agencies Navy (Department of the Navy) Commerce (Department of Commerce) Army (Department of the Army)	$91,690,275	0.3%	Rank history: #21 in FY2021, #12 in FY2022, #16 in FY2024 and #13 in FY2025; down 10 since FY2022.
23	East Coast Repair & Fabrication, LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$89,443,036	0.3%	Rank history: #29 in FY2021, #17 in FY2022, #19 in FY2024 and #18 in FY2025; down 6 since FY2022.
24	ST Engineering Halter Marine and Offshore Inc. 2 awardees, including Bollinger Mississippi Shipbuilding, LLC and Bollinger Mississippi Repair, LLC Top agencies Navy (Department of the Navy) Commerce (Department of Commerce)	$81,792,133	0.3%	Rank history: #12 in FY2021, #5 in FY2022 and not on the FY2024–FY2025 lists; down 19 since FY2022.
25	Sumitomo Heavy Industries, Ltd. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$78,640,852	0.3%	Rank history: #25 in FY2021, #18 in FY2022, #29 in FY2024 and not on the FY2025 list; down 7 since FY2022.
26	Pacific Shipyards International, LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) Army (Department of the Army)	$73,343,174	0.3%	Rank history: #44 in FY2021, #29 in FY2022, #15 in FY2024 and #22 in FY2025; up 3 since FY2022.
27	Safe Boats International LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) DOJ (Department of Justice)	$66,973,268	0.2%	Rank history: not on the FY2021–FY2022 lists, #55 in FY2024 and #33 in FY2025; new.
28	Southcoast Welding & Manufacturing, Llc. Top agencies Navy (Department of the Navy)	$66,708,052	0.2%	Rank history: #59 in FY2021, #55 in FY2022, #33 in FY2024 and #35 in FY2025; up 27 since FY2022.
29	Delphinus Engineering LLC Top agencies Navy (Department of the Navy)	$66,610,256	0.2%	Rank history: #24 in FY2021, #25 in FY2022, #25 in FY2024 and #26 in FY2025; down 4 since FY2022.
30	Birdon America Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army) DLA (Defense Logistics Agency)	$64,021,679	0.2%	Rank history: #23 in FY2021, #23 in FY2022, #20 in FY2024 and #10 in FY2025; down 7 since FY2022.
31	Prism Maritime, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$62,133,028	0.2%	Rank history: not on the FY2021–FY2022 lists, #27 in FY2024 and #29 in FY2025; up 83 since FY2022.
32	Alaska Native Government Services LLC Through Reconcraft, LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$59,869,176	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 326 since FY2022.
33	Sterling Shipyard LP 2 awardees Top agencies Army (Department of the Army) Navy (Department of the Navy)	$56,624,267	0.2%	Rank history: #89 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 448 since FY2022.
34	QED Systems, Inc. Top agencies Navy (Department of the Navy)	$48,253,578	0.2%	Rank history: #28 in FY2021, #30 in FY2022, #26 in FY2024 and #32 in FY2025; down 4 since FY2022.
35	Northeast Ship Repair Inc 2 awardees, including Boston Ship Repair LLC and Philadelphia Ship Repair LLC Top agencies Navy (Department of the Navy)	$45,308,242	0.2%	Rank history: #62 in FY2021, #93 in FY2022, #63 in FY2024 and not on the FY2025 list; up 58 since FY2022.
36	Seemann Composites, LLC Top agencies Navy (Department of the Navy)	$43,112,450	0.2%	Rank history: not on the FY2021 list, #78 in FY2022, #49 in FY2024 and #66 in FY2025; up 42 since FY2022.
37	United States Marine Inc. Top agencies Navy (Department of the Navy) USSOCOM (United States Special Operations Command) DHS (Department of Homeland Security)	$42,345,884	0.2%	Rank history: #47 in FY2021, #51 in FY2022, #47 in FY2024 and #39 in FY2025; up 14 since FY2022.
38	National University of Singapore Through Seatrium Repairs & Upgrades Pte. Ltd. Top agencies Navy (Department of the Navy)	$42,266,740	0.2%	Rank history: not on the FY2021 list, #49 in FY2022 and not on the FY2024–FY2025 lists; up 11 since FY2022.
39	Yokohama Engineering Works, Ltd. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$41,426,522	0.1%	Rank history: not on the FY2021–FY2022 lists, #48 in FY2024 and #50 in FY2025; up 65 since FY2022.
40	Silver Ships, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) Commerce (Department of Commerce)	$41,318,488	0.1%	Rank history: #65 in FY2021, #95 in FY2022, #68 in FY2024 and #57 in FY2025; up 55 since FY2022.
41	Fincantieri Marine Systems North America Inc. 2 awardees, including Marinette Marine Corporation Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$37,748,757	0.1%	Rank history: #5 in FY2021, #6 in FY2022 and not on the FY2024–FY2025 lists; down 35 since FY2022.
42	Oceaneering International Inc. 2 awardees Top agencies Navy (Department of the Navy)	$37,021,200	0.1%	Rank history: #50 in FY2021, #33 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
43	Park Corporation Through Erie Forge & Steel Inc. Top agencies Navy (Department of the Navy)	$36,752,184	0.1%	Rank history: not on the FY2021 list, #43 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
44	Owl International Inc. Top agencies Navy (Department of the Navy)	$36,218,849	0.1%	Rank history: #56 in FY2021, #48 in FY2022, #54 in FY2024 and #42 in FY2025; up 4 since FY2022.
45	Conrad Industries, Inc. 2 awardees, including Conrad Shipyard, L.l.c and Conrad Shipyard Amelia, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$36,070,708	0.1%	Rank history: #88 in FY2021, #20 in FY2022, #32 in FY2024 and #21 in FY2025; down 25 since FY2022.
46	Cabras Marine Corporation Top agencies Navy (Department of the Navy)	$34,931,837	0.1%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2024 and #37 in FY2025; up 89 since FY2022.
47	General Electric Company 4 awardees, including GE Energy Power Conversion USA Inc. and GE Aviation Systems LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$34,351,724	0.1%	Rank history: #43 in FY2021, #35 in FY2022 and not on the FY2024–FY2025 lists; down 12 since FY2022.
48	Gunderson Marine LLC Top agencies Navy (Department of the Navy)	$33,350,000	0.1%	Rank history: not on the FY2021–FY2022 lists, #38 in FY2024 and not on the FY2025 list; new.
49	Global Maritek Systems Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$32,037,026	0.1%	Rank history: #46 in FY2021, #39 in FY2022, #52 in FY2024 and #43 in FY2025; down 10 since FY2022.
50	Lyon Shipyard Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) DHS (Department of Homeland Security)	$31,142,062	0.1%	Rank history: #42 in FY2021, #31 in FY2022 and not on the FY2024–FY2025 lists; down 19 since FY2022.
51	Rolls-Royce Military Aero Engines Ltd 4 awardees, including Rolls-Royce Solutions America Inc. and Rolls-Royce Marine North America Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) Army (Department of the Army)	$29,164,050	0.1%	Rank history: #48 in FY2021, #24 in FY2022 and not on the FY2024–FY2025 lists; down 27 since FY2022.
52	Saltchuk Resources, Inc. 2 awardees, including Tote Services, LLC and Foss Maritime Company, Llc. Top agencies DOT (Department of Transportation) DHS (Department of Homeland Security)	$28,871,690	0.1%	Rank history: #3 in FY2021, #8 in FY2022 and not on the FY2024–FY2025 lists; down 44 since FY2022.
53	Unithai Shipyard & Engineering Limited Through Unithai Shipyard & Engineering Limited - Branch Top agencies Navy (Department of the Navy)	$28,331,365	0.1%	Rank history: not on the FY2021 list, #58 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
54	Northrop Grumman Corporation 5 awardees, including Northrop Grumman Systems Corporation Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$28,143,015	0.1%	Rank history: not on the FY2021 list, #47 in FY2022, #66 in FY2024 and #47 in FY2025; down 7 since FY2022.
55	Fairlead Boatworks, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$27,965,428	0.1%	Rank history: #53 in FY2021, #42 in FY2022, #46 in FY2024 and #46 in FY2025; down 13 since FY2022.
56	Gravois Aluminum Boats LLC 2 awardees, including Shark Tech, LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$26,901,181	0.1%	Rank history: #39 in FY2021, #38 in FY2022, #53 in FY2024 and #40 in FY2025; down 18 since FY2022.
57	The Bahrain Petroleum Company BSC (CLOSED) Through Arab Shipbuilding & Repair Yard Co. (Asry) Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$26,284,215	0.1%	Rank history: not on the FY2021 list, #81 in FY2022 and not on the FY2024–FY2025 lists; up 24 since FY2022.
58	Lake Union Drydock Company Top agencies Commerce (Department of Commerce) DHS (Department of Homeland Security) Navy (Department of the Navy)	$26,006,322	0.1%	Rank history: #67 in FY2021, #46 in FY2022, #61 in FY2024 and not on the FY2025 list; down 12 since FY2022.
59	International Marine and Industrial Applicators LLC Through Imia, LLC Top agencies Navy (Department of the Navy)	$25,456,026	0.1%	Rank history: not on the FY2021 list, #86 in FY2022, #99 in FY2024 and not on the FY2025 list; up 27 since FY2022.
60	L3Harris Technologies, Inc. 9 awardees, including L3Harris Maritime Services Inc. and L3 Technologies, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$24,720,270	0.1%	Rank history: #40 in FY2021, #36 in FY2022, #90 in FY2024 and not on the FY2025 list; down 24 since FY2022.
61	Continental Tide Defense Systems, Inc. Top agencies Navy (Department of the Navy)	$24,512,529	0.1%	Rank history: #73 in FY2021, #67 in FY2022, #83 in FY2024 and #65 in FY2025; up 6 since FY2022.
62	Propulsion Controls Engineering, LLC 3 awardees Top agencies Navy (Department of the Navy)	$23,453,378	0.1%	Rank history: #90 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 60 since FY2022.
63	Brodogradiliste Viktor Lenac D. D. Through Brodogradiliste Viktor Lenac D.D. Top agencies Navy (Department of the Navy)	$22,541,317	0.1%	Rank history: #60 in FY2021, #53 in FY2022 and not on the FY2024–FY2025 lists; down 10 since FY2022.
64	Ribcraft Usa, LLC Top agencies Navy (Department of the Navy)	$21,420,492	0.1%	Rank history: #82 in FY2021, #71 in FY2022, not on the FY2024 list and #68 in FY2025; up 7 since FY2022.
65	Teledyne Technologies Incorporated 2 awardees, including Teledyne Brown Engineering, Inc. and Teledyne Instruments Inc. Top agencies Navy (Department of the Navy)	$19,887,310	0.1%	Rank history: #32 in FY2021, #90 in FY2022, #34 in FY2024 and #89 in FY2025; up 25 since FY2022.
66	Leidos Holdings, Inc. 4 awardees, including Leidos, Inc., Gibbs & Cox, Inc. and Dynetics Technical Solutions Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$19,711,075	0.1%	Rank history: #85 in FY2021, #57 in FY2022, #75 in FY2024 and #96 in FY2025; down 9 since FY2022.
67	Marine Group Boat Works, LLC Top agencies Navy (Department of the Navy)	$19,249,551	0.1%	Rank history: #17 in FY2021, #32 in FY2022, #85 in FY2024 and #74 in FY2025; down 35 since FY2022.
68	Seaward Marine Services, LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$19,068,664	0.1%	Rank history: not on the FY2021–FY2022 lists, #44 in FY2024 and #48 in FY2025; new.
69	Phoenix International Holdings, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$18,751,512	0.1%	Rank history: #55 in FY2021, #68 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
70	Palumbo Shipyard Limited Top agencies Navy (Department of the Navy)	$18,007,871	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
71	Reconcraft LLC Top agencies Navy (Department of the Navy)	$17,995,948	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
72	Advanced Integrated Technologies, LLC Top agencies Navy (Department of the Navy)	$17,258,705	0.1%	Rank history: #77 in FY2021, #59 in FY2022, #64 in FY2024 and #86 in FY2025; down 13 since FY2022.
73	Snow & Company, Inc. Top agencies Navy (Department of the Navy) DOI (Department of the Interior)	$16,598,772	0.1%	Rank history: #92 in FY2021, #64 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
74	Confluence Corp Top agencies Navy (Department of the Navy) Commerce (Department of Commerce)	$16,186,195	0.1%	Rank history: #68 in FY2021, #66 in FY2022 and not on the FY2024–FY2025 lists; down 8 since FY2022.
75	Curtiss-Wright Corporation 7 awardees, including Curtiss-Wright Electro-Mechanical Corporation, Curtiss-Wright Flow Control Corporation and Indal Technologies Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$15,284,610	0.1%	Rank history: #95 in FY2021, #75 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
76	Fairbanks Morse LLC 5 awardees Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$15,088,910	0.1%	Rank history: #49 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 29 since FY2022.
77	United Support Services Inc. Top agencies Navy (Department of the Navy)	$14,552,198	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 46 since FY2022.
78	Walashek Holdings Inc. 2 awardees, including Walashek Industrial & Marine, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$14,208,389	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 23 since FY2022.
79	Bay Ship & Yacht Co 2 awardees, including Bay Marine Boatworks, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) DOI (Department of the Interior)	$13,040,416	<0.1%	Rank history: #35 in FY2021, #22 in FY2022, #65 in FY2024 and #44 in FY2025; down 57 since FY2022.
80	Orbis Sibro Inc. Top agencies Navy (Department of the Navy)	$12,607,781	<0.1%	Rank history: #78 in FY2021, #41 in FY2022, not on the FY2024 list and #93 in FY2025; down 39 since FY2022.
81	Platypus Marine Inc Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) Army (Department of the Army)	$12,597,461	<0.1%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2024 and #94 in FY2025; new.
82	Shinko Co.,Ltd. Top agencies Navy (Department of the Navy)	$12,254,570	<0.1%	Rank history: #57 in FY2021, #72 in FY2022, #89 in FY2024 and not on the FY2025 list; down 10 since FY2022.
83	Maritime Applied Physics Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$11,521,447	<0.1%	Rank history: not on the FY2021–FY2022 lists, #21 in FY2024 and #28 in FY2025; up 76 since FY2022.
84	Surface Technologies Corporation Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$11,161,668	<0.1%	Rank history: #91 in FY2021, #74 in FY2022, #87 in FY2024 and #80 in FY2025; down 10 since FY2022.
85	GMD Shipyard Corp. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy)	$11,066,437	<0.1%	Rank history: #79 in FY2021, #60 in FY2022 and not on the FY2024–FY2025 lists; down 25 since FY2022.
86	Marine Polymers, Inc. Top agencies Navy (Department of the Navy)	$10,969,000	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 258 since FY2022.
87	Jag Alaska Inc. Top agencies DHS (Department of Homeland Security)	$10,472,776	<0.1%	Rank history: not on the FY2021 list, #88 in FY2022 and not on the FY2024–FY2025 lists; up 1 since FY2022.
88	Virginia Electronic Systems, Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy)	$10,471,156	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 352 since FY2022.
89	Drydocks World- Dubai LLC Through Dry Docks World - Dubai Fzco Top agencies Navy (Department of the Navy)	$10,416,347	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 243 since FY2022.
90	Bay Marine JV LLC Top agencies Navy (Department of the Navy)	$10,288,970	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
91	General Atomic Technologies Corporation Through General Atomics Top agencies Navy (Department of the Navy)	$10,082,320	<0.1%	Rank history: not on the FY2021 list, #73 in FY2022 and not on the FY2024–FY2025 lists; down 18 since FY2022.
92	Integrated Marine Services, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$9,928,776	<0.1%	Rank history: #54 in FY2021, #89 in FY2022, not on the FY2024 list and #87 in FY2025; down 3 since FY2022.
93	Metal Trades Inc Top agencies Army (Department of the Army)	$9,749,349	<0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #62 in FY2025; new.
94	MAK Technologies Inc. Through ST Engineering Marine Ltd. Top agencies Navy (Department of the Navy)	$9,497,555	<0.1%	Rank history: not on the FY2021–FY2022 lists, #42 in FY2024 and #56 in FY2025; new.
95	Metal Craft Marine Incorporated Through Metalcraft Marine US, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) DOI (Department of the Interior)	$9,113,903	<0.1%	Rank history: #97 in FY2021, #83 in FY2022 and not on the FY2024–FY2025 lists; down 12 since FY2022.
96	Marine Ventures International, Inc. Top agencies Navy (Department of the Navy)	$8,942,434	<0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #88 in FY2025; up 14 since FY2022.
97	Wing Inflatables Inc. 2 awardees, including Patten Co., Inc. Top agencies Navy (Department of the Navy) USSOCOM (United States Special Operations Command) DLA (Defense Logistics Agency)	$8,888,051	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 94 since FY2022.
98	Guam Industrial Services Inc. Top agencies Navy (Department of the Navy)	$8,605,363	<0.1%	Rank history: not on the FY2021 list, #69 in FY2022, #72 in FY2024 and not on the FY2025 list; down 29 since FY2022.
99	C.j. Mahan Construction Company, LLC Top agencies Army (Department of the Army)	$8,145,500	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
100	Wartsila Defense Inc. 4 awardees, including Defense Maritime Solutions, Inc. and Wartsila Voyage Americas, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$8,136,526	<0.1%	Rank history: #72 in FY2021, #84 in FY2022 and not on the FY2024–FY2025 lists; down 16 since FY2022.

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100 of 1,164 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 3366

Code	Net obligations	Largest contractor
33661 Ship and Boat Building	$27,325,647,660	General Dynamics Corporation

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 $28 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 NAICS 3366 contractors in FY2023?

1. General Dynamics Corporation ($10.1B), 2. Huntington Ingalls Industries, Inc. ($9.22B), 3. BAE Systems PLC ($977M), 4. Marinette Marine Corporation ($612M), 5. Thomas Scientific LLC ($459M), 6. Austal Limited ($427M), 7. Eastern Shipbuilding Group, Inc. ($418M), 8. Crowley Government Services Inc. ($326M), 9. Thoma-Sea Marine Constructors, L.L.C. ($325M), 10. Textron Inc. ($198M).

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