Top 100 Contractors in NAICS 3366: Ship and Boat Building, FY2024

Name: Top 100 Contractors in NAICS 3366: Ship and Boat Building, FY2024
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2023 – Sep 30, 2024 Code page on GovTribe

The top 10 won 77% of FY2024 NAICS 3366 contract dollars

Contract obligations: $24,770,682,318 Net of deobligations, by contracts coded NAICS 3366 or a code under it
Contractors: 1,380 Parent companies with an obligation
Largest contractor: Huntington Ingalls Industries, Inc. $7.66 billion, 29.7% 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	Huntington Ingalls Industries, Inc. 4 awardees, including Huntington Ingalls Incorporated, Continental Maritime of San Diego, LLC and HII Fleet Support Group LLC Top agencies Navy (Department of the Navy)	$7,655,279,543	29.7%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023 and #2 in FY2025; up 1 since FY2023.
2	General Dynamics Corporation 10 awardees, including Electric Boat Corporation, Metro Machine Corp. and National Steel and Shipbuilding Company Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$4,919,956,979	19.1%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and #1 in FY2025; down 1 since FY2023.
3	Bath Iron Works Corporation Top agencies Navy (Department of the Navy)	$1,898,649,581	7.4%	Rank history: not on the FY2021–FY2023 lists and #12 in FY2025; new.
4	Fincantieri Marine Group Holdings Inc. 2 awardees, including Marinette Marine Corporation and Fincantieri Marine Group LLC Top agencies Navy (Department of the Navy) USSOCOM (United States Special Operations Command) DHS (Department of Homeland Security)	$1,131,429,387	4.4%	Rank history: not on the FY2021–FY2023 lists and #17 in FY2025; new.
5	Austal USA LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$1,099,492,851	4.3%	Rank history: not on the FY2021–FY2023 lists and #5 in FY2025; new.
6	National Steel and Shipbuilding Company Top agencies Navy (Department of the Navy)	$1,095,806,106	4.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
7	BAE Systems 12 awardees, including BAE Systems Maritime Solutions San Diego Inc., BAE Systems Maritime Solutions Norfolk Inc. and BAE Systems Maritime Solutions Jacksonville LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$606,338,862	2.4%	Rank history: #4 in FY2021, #4 in FY2022, #3 in FY2023 and #3 in FY2025; down 4 since FY2023.
8	Blueforge Alliance Top agencies Navy (Department of the Navy)	$537,884,552	2.1%	Rank history: not on the FY2021–FY2023 lists and #9 in FY2025; new.
9	Vigor Industrial LLC 2 awardees, including Vigor Works LLC and Vigor Marine LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) DHS (Department of Homeland Security)	$416,626,549	1.6%	Rank history: not on the FY2021–FY2023 lists and #7 in FY2025; new.
10	Crowley Government Services, Inc. 2 awardees Top agencies DOT (Department of Transportation)	$351,427,592	1.4%	Rank history: not on the FY2021 list, #44 in FY2022, #8 in FY2023 and #25 in FY2025; down 2 since FY2023.
11	Textron Inc. Through Textron Systems Corp Top agencies Navy (Department of the Navy)	$307,174,485	1.2%	Rank history: #61 in FY2021, #56 in FY2022, #10 in FY2023 and #4 in FY2025; down 1 since FY2023.
12	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)	$275,147,303	1.1%	Rank history: #11 in FY2021, #7 in FY2022, #5 in FY2023 and not on the FY2025 list; down 7 since FY2023.
13	Austal Limited 2 awardees, including Austal Usa, LLC Top agencies Navy (Department of the Navy)	$269,754,192	1.0%	Rank history: #8 in FY2021, #3 in FY2022, #6 in FY2023 and not on the FY2025 list; down 7 since FY2023.
14	Lockheed Martin Corporation Top agencies Navy (Department of the Navy)	$190,135,288	0.7%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
15	Pacific Shipyards International, LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) Army (Department of the Army)	$136,840,664	0.5%	Rank history: #44 in FY2021, #29 in FY2022, #26 in FY2023 and #22 in FY2025; up 11 since FY2023.
16	Detyens Shipyards Inc. Top agencies Navy (Department of the Navy) Commerce (Department of Commerce)	$121,250,293	0.5%	Rank history: #21 in FY2021, #12 in FY2022, #22 in FY2023 and #13 in FY2025; up 6 since FY2023.
17	Epsilon Systems Solutions Inc. 2 awardees Top agencies Navy (Department of the Navy)	$119,422,468	0.5%	Rank history: #18 in FY2021, #15 in FY2022, #14 in FY2023 and #16 in FY2025; down 3 since FY2023.
18	American Maritime Holdings, LLC 3 awardees, including Marine Hydraulics International, LLC and Tecnico Corporation Top agencies Navy (Department of the Navy)	$118,951,232	0.5%	Rank history: #10 in FY2021, #13 in FY2022, #21 in FY2023 and #52 in FY2025; up 3 since FY2023.
19	East Coast Repair & Fabrication, LLC Top agencies Navy (Department of the Navy)	$109,533,266	0.4%	Rank history: #29 in FY2021, #17 in FY2022, #23 in FY2023 and #18 in FY2025; up 4 since FY2023.
20	Birdon America Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security) GSA (General Services Administration)	$109,490,553	0.4%	Rank history: #23 in FY2021, #23 in FY2022, #30 in FY2023 and #10 in FY2025; up 10 since FY2023.
21	Maritime Applied Physics Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$106,968,271	0.4%	Rank history: not on the FY2021–FY2022 lists, #83 in FY2023 and #28 in FY2025; up 62 since FY2023.
22	Eastern Shipbuilding Group, Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army)	$99,896,720	0.4%	Rank history: #6 in FY2021, #21 in FY2022, #7 in FY2023 and not on the FY2025 list; down 15 since FY2023.
23	Alabama Shipyard LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$95,231,214	0.4%	Rank history: #27 in FY2021, #28 in FY2022, #19 in FY2023 and #24 in FY2025; down 4 since FY2023.
24	Amentum Holdings, Inc. Through Amentum Services, Inc. Top agencies Navy (Department of the Navy)	$85,075,681	0.3%	Rank history: not on the FY2021–FY2023 lists and #27 in FY2025; new.
25	Delphinus Engineering LLC Top agencies Navy (Department of the Navy)	$77,029,612	0.3%	Rank history: #24 in FY2021, #25 in FY2022, #29 in FY2023 and #26 in FY2025; up 4 since FY2023.
26	QED Systems, Inc. Top agencies Navy (Department of the Navy)	$72,002,991	0.3%	Rank history: #28 in FY2021, #30 in FY2022, #34 in FY2023 and #32 in FY2025; up 8 since FY2023.
27	Prism Maritime, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$71,325,706	0.3%	Rank history: not on the FY2021–FY2022 lists, #31 in FY2023 and #29 in FY2025; up 4 since FY2023.
28	Bollinger Mississippi Shipbuilding, LLC Top agencies Navy (Department of the Navy)	$70,216,952	0.3%	Rank history: not on the FY2021–FY2023 lists and #6 in FY2025; new.
29	Sumitomo Heavy Industries, Ltd. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$69,758,391	0.3%	Rank history: #25 in FY2021, #18 in FY2022, #25 in FY2023 and not on the FY2025 list; down 4 since FY2023.
30	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) DHS (Department of Homeland Security) Army (Department of the Army)	$65,819,753	0.3%	Rank history: #19 in FY2021, #14 in FY2022, #16 in FY2023 and #23 in FY2025; down 14 since FY2023.
31	Navantia S.a. S.M.E. Top agencies Navy (Department of the Navy)	$65,054,844	0.3%	Rank history: not on the FY2021–FY2023 lists and #31 in FY2025; new.
32	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)	$64,683,667	0.3%	Rank history: #88 in FY2021, #20 in FY2022, #45 in FY2023 and #21 in FY2025; up 13 since FY2023.
33	Southcoast Welding & Manufacturing, Llc. Top agencies Navy (Department of the Navy)	$61,212,435	0.2%	Rank history: #59 in FY2021, #55 in FY2022, #28 in FY2023 and #35 in FY2025; down 5 since FY2023.
34	Teledyne Technologies Incorporated 3 awardees, including Teledyne Brown Engineering, Inc. and Teledyne Instruments Inc. Top agencies Navy (Department of the Navy) Commerce (Department of Commerce)	$60,404,899	0.2%	Rank history: #32 in FY2021, #90 in FY2022, #65 in FY2023 and #89 in FY2025; up 31 since FY2023.
35	Marine Hydraulics International, LLC Top agencies Navy (Department of the Navy)	$47,807,426	0.2%	Rank history: not on the FY2021–FY2023 lists and #15 in FY2025; new.
36	Seatrium Repairs & Upgrades PTE. Ltd. Top agencies Navy (Department of the Navy)	$46,535,152	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 222 since FY2023.
37	Oceaneering International Inc 2 awardees Top agencies Navy (Department of the Navy)	$44,432,341	0.2%	Rank history: not on the FY2021–FY2023 lists and #36 in FY2025; new.
38	Gunderson Marine LLC Top agencies Army (Department of the Army)	$43,572,000	0.2%	Rank history: not on the FY2021–FY2022 lists, #48 in FY2023 and not on the FY2025 list; up 10 since FY2023.
39	Mare Island Dry Dock LLC Top agencies DHS (Department of Homeland Security) Commerce (Department of Commerce)	$43,408,358	0.2%	Rank history: #31 in FY2021, #16 in FY2022, #20 in FY2023 and #63 in FY2025; down 19 since FY2023.
40	Park Corporation Through Erie Forge & Steel Inc. Top agencies Navy (Department of the Navy)	$43,245,613	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
41	Defense Maritime Solutions, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$42,416,602	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
42	MAK Technologies Inc. Through Seatrium Repairs & Upgrades Pte. Ltd. Top agencies Navy (Department of the Navy)	$41,580,123	0.2%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2023 and #56 in FY2025; up 52 since FY2023.
43	Rolls-Royce Solutions America Inc. 3 awardees, including Rolls-Royce Marine North America Inc. and Rolls-Royce Corporation Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$38,982,287	0.2%	Rank history: not on the FY2021–FY2023 lists and #53 in FY2025; new.
44	Seaward Marine Services Inc. 2 awardees Top agencies Navy (Department of the Navy)	$38,837,789	0.2%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2023 and #48 in FY2025; up 24 since FY2023.
45	ManTech International Corporation Through Imia, LLC Top agencies Navy (Department of the Navy)	$38,513,115	0.1%	Rank history: not on the FY2021–FY2023 lists and #41 in FY2025; new.
46	Fairlead Boatworks, Inc. Top agencies Navy (Department of the Navy) DOT (Department of Transportation) Army (Department of the Army)	$36,530,570	0.1%	Rank history: #53 in FY2021, #42 in FY2022, #55 in FY2023 and #46 in FY2025; up 9 since FY2023.
47	United States Marine Inc. Top agencies USSOCOM (United States Special Operations Command) Navy (Department of the Navy) DHS (Department of Homeland Security)	$35,490,031	0.1%	Rank history: #47 in FY2021, #51 in FY2022, #37 in FY2023 and #39 in FY2025; down 10 since FY2023.
48	Yokohama Engineering Works, Ltd. Top agencies Army (Department of the Army)	$34,438,305	0.1%	Rank history: not on the FY2021–FY2022 lists, #39 in FY2023 and #50 in FY2025; down 9 since FY2023.
49	Seemann Composites, LLC Top agencies Navy (Department of the Navy)	$33,940,862	0.1%	Rank history: not on the FY2021 list, #78 in FY2022, #36 in FY2023 and #66 in FY2025; down 13 since FY2023.
50	Bollinger Shipyards Lockport, L.L.C. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$33,465,190	0.1%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2025; new.
51	Marinette Marine Corporation 2 awardees, including Fincantieri Marine Systems North America, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$33,103,315	0.1%	Rank history: not on the FY2021–FY2022 lists, #4 in FY2023 and #76 in FY2025; down 47 since FY2023.
52	Global Maritek Systems Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$33,074,412	0.1%	Rank history: #46 in FY2021, #39 in FY2022, #49 in FY2023 and #43 in FY2025; down 3 since FY2023.
53	Gravois Aluminum Boats LLC 2 awardees, including Shark Tech, LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) Army (Department of the Army)	$32,798,801	0.1%	Rank history: #39 in FY2021, #38 in FY2022, #56 in FY2023 and #40 in FY2025; up 3 since FY2023.
54	Owl International Inc. Top agencies Navy (Department of the Navy)	$32,575,158	0.1%	Rank history: #56 in FY2021, #48 in FY2022, #44 in FY2023 and #42 in FY2025; down 10 since FY2023.
55	Safe Boats International LLC Top agencies DHS (Department of Homeland Security) DOS (Department of State) DOJ (Department of Justice)	$31,438,952	0.1%	Rank history: not on the FY2021–FY2022 lists, #27 in FY2023 and #33 in FY2025; down 28 since FY2023.
56	Mitsubishi Heavy Industries, Ltd 2 awardees Top agencies Navy (Department of the Navy)	$31,423,049	0.1%	Rank history: #38 in FY2021, #54 in FY2022, not on the FY2023 list and #60 in FY2025; up 146 since FY2023.
57	RTX Corporation 5 awardees, including Goodrich Corporation, Raytheon Company and Hamilton Sundstrand Corporation Top agencies Navy (Department of the Navy)	$31,239,310	0.1%	Rank history: not on the FY2021–FY2023 lists and #8 in FY2025; new.
58	Epsilon C5I Inc. Through Epsilon Systems Solutions, Inc. Top agencies Navy (Department of the Navy)	$30,864,804	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
59	Life Cycle Engineering Inc. Top agencies Navy (Department of the Navy)	$30,829,307	0.1%	Rank history: not on the FY2021 list, #62 in FY2022, not on the FY2023 list and #55 in FY2025; up 80 since FY2023.
60	Thoma-Sea Marine Constructors, L.L.C. 2 awardees Top agencies Army (Department of the Army) DHS (Department of Homeland Security) Navy (Department of the Navy)	$30,652,898	0.1%	Rank history: #13 in FY2021, #77 in FY2022, #9 in FY2023 and #45 in FY2025; down 51 since FY2023.
61	Lake Union Drydock Company Top agencies DHS (Department of Homeland Security) Commerce (Department of Commerce) Navy (Department of the Navy)	$28,680,520	0.1%	Rank history: #67 in FY2021, #46 in FY2022, #58 in FY2023 and not on the FY2025 list; down 3 since FY2023.
62	Jag Industrial Services, Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy)	$27,607,743	0.1%	Rank history: #71 in FY2021, #79 in FY2022, not on the FY2023 list and #67 in FY2025; up 41 since FY2023.
63	Northeast Ship Repair Inc 2 awardees, including Boston Ship Repair LLC Top agencies Navy (Department of the Navy)	$25,846,102	0.1%	Rank history: #62 in FY2021, #93 in FY2022, #35 in FY2023 and not on the FY2025 list; down 28 since FY2023.
64	Advanced Integrated Technologies, LLC Top agencies Navy (Department of the Navy)	$23,476,829	0.1%	Rank history: #77 in FY2021, #59 in FY2022, #72 in FY2023 and #86 in FY2025; up 8 since FY2023.
65	Bay Ship & Yacht Co 2 awardees, including Bay Marine Boatworks, Inc. Top agencies Army (Department of the Army) Commerce (Department of Commerce) DOI (Department of the Interior)	$22,270,665	0.1%	Rank history: #35 in FY2021, #22 in FY2022, #79 in FY2023 and #44 in FY2025; up 14 since FY2023.
66	Northrop Grumman Corporation 6 awardees, including Northrop Grumman Systems Corporation Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$22,258,111	0.1%	Rank history: not on the FY2021 list, #47 in FY2022, #54 in FY2023 and #47 in FY2025; down 12 since FY2023.
67	Bollinger Shipyards Inc 2 awardees, including Bollinger Shipyards Lockport, L.L.C. and Chand, L.L.C. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$21,620,612	0.1%	Rank history: #9 in FY2021, #10 in FY2022, #11 in FY2023 and not on the FY2025 list; down 56 since FY2023.
68	Silver Ships, Inc. Top agencies Navy (Department of the Navy) Commerce (Department of Commerce) DOI (Department of the Interior)	$21,356,978	0.1%	Rank history: #65 in FY2021, #95 in FY2022, #40 in FY2023 and #57 in FY2025; down 28 since FY2023.
69	Cabras Marine Corporation Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$21,295,506	0.1%	Rank history: not on the FY2021–FY2022 lists, #46 in FY2023 and #37 in FY2025; down 23 since FY2023.
70	Marisco, Ltd. 3 awardees, including Coordinated Wire Rope of Hawaii, Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) Army (Department of the Army)	$20,551,537	0.1%	Rank history: not on the FY2021–FY2023 lists and #91 in FY2025; up 40 since FY2023.
71	G I Industrial-Marine, LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) Commerce (Department of Commerce)	$20,448,947	0.1%	Rank history: not on the FY2021 list, #92 in FY2022, not on the FY2023 list and not on the FY2025 list; up 35 since FY2023.
72	Guam Industrial Services Inc. Top agencies Navy (Department of the Navy)	$20,247,935	0.1%	Rank history: not on the FY2021 list, #69 in FY2022, #98 in FY2023 and not on the FY2025 list; up 26 since FY2023.
73	Phoenix International Holdings Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$19,825,006	0.1%	Rank history: not on the FY2021–FY2023 lists and #75 in FY2025; new.
74	Subic Drydock Corporation Top agencies Navy (Department of the Navy)	$19,041,217	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 31 since FY2023.
75	Leidos Holdings, Inc. 3 awardees, including Leidos, Inc., Gibbs & Cox, Inc. and Dynetics Technical Solutions Inc. Top agencies Navy (Department of the Navy)	$18,382,620	0.1%	Rank history: #85 in FY2021, #57 in FY2022, #66 in FY2023 and #96 in FY2025; down 9 since FY2023.
76	Synergy Partners LLC Top agencies Navy (Department of the Navy)	$17,862,720	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
77	BMFT JV LLC Top agencies Navy (Department of the Navy)	$16,712,302	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 99 since FY2023.
78	Art Craft Fabricators Inc. Top agencies Navy (Department of the Navy)	$16,616,094	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 87 since FY2023.
79	The Boeing Company Top agencies Navy (Department of the Navy)	$16,517,763	0.1%	Rank history: #96 in FY2021, not on the FY2022–FY2023 lists and #81 in FY2025; up 30 since FY2023.
80	Inventech Marine Solutions, LLC Top agencies DHS (Department of Homeland Security)	$16,122,067	0.1%	Rank history: not on the FY2021–FY2023 lists and #71 in FY2025; new.
81	Platypus Marine Inc Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) Army (Department of the Army)	$15,905,600	0.1%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2023 and #94 in FY2025; unchanged since FY2023.
82	Saab Inc. Top agencies Navy (Department of the Navy)	$15,877,254	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
83	Continental Tide Defense Systems, Inc. Top agencies Navy (Department of the Navy)	$15,842,431	0.1%	Rank history: #73 in FY2021, #67 in FY2022, #61 in FY2023 and #65 in FY2025; down 22 since FY2023.
84	Hanwha Ocean Co., Ltd. Top agencies Navy (Department of the Navy)	$15,128,068	0.1%	Rank history: not on the FY2021–FY2023 lists and #34 in FY2025; new.
85	Marine Group Boat Works, LLC Top agencies Navy (Department of the Navy)	$15,107,537	0.1%	Rank history: #17 in FY2021, #32 in FY2022, #67 in FY2023 and #74 in FY2025; down 18 since FY2023.
86	Brodogradiliste Viktor Lenac D.D. Top agencies Navy (Department of the Navy)	$14,766,177	0.1%	Rank history: not on the FY2021–FY2023 lists and #54 in FY2025; new.
87	Surface Technologies Corporation Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$13,949,381	0.1%	Rank history: #91 in FY2021, #74 in FY2022, #84 in FY2023 and #80 in FY2025; down 3 since FY2023.
88	Colonna'S Ship Yard Incorporated Through Colonna's Shipyard Inc. Top agencies Navy (Department of the Navy)	$13,860,429	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
89	Shinko Co.,Ltd. Top agencies Navy (Department of the Navy)	$13,023,287	0.1%	Rank history: #57 in FY2021, #72 in FY2022, #82 in FY2023 and not on the FY2025 list; down 7 since FY2023.
90	L3Harris Technologies, Inc. 7 awardees, including L3Harris Maritime Services Inc. and L3 Technologies, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$12,863,874	<0.1%	Rank history: #40 in FY2021, #36 in FY2022, #60 in FY2023 and not on the FY2025 list; down 30 since FY2023.
91	Arab Shipbuilding & Repair Yard Co. (Asry) Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$12,035,215	<0.1%	Rank history: #100 in FY2021, not on the FY2022–FY2023 lists and #98 in FY2025; returned.
92	Southwest Shipyard LP Top agencies Army (Department of the Army)	$11,943,644	<0.1%	Rank history: not on the FY2021 list, #87 in FY2022, not on the FY2023 list and #61 in FY2025; up 200 since FY2023.
93	Federal Marine & Defense Services LLC Top agencies DHS (Department of Homeland Security) Commerce (Department of Commerce)	$11,767,047	<0.1%	Rank history: #86 in FY2021, #94 in FY2022, not on the FY2023 list and not on the FY2025 list; up 43 since FY2023.
94	JAG Alaska Inc. Top agencies DHS (Department of Homeland Security) Commerce (Department of Commerce)	$11,652,704	<0.1%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2025; new.
95	Conrad Orange Shipyard, Inc. Top agencies Army (Department of the Army)	$10,961,100	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
96	Everett Ship Repair, LLC Top agencies Navy (Department of the Navy)	$10,749,954	<0.1%	Rank history: not on the FY2021 list, #97 in FY2022, not on the FY2023 list and #79 in FY2025; up 97 since FY2023.
97	Boston Ship Repair LLC Top agencies Navy (Department of the Navy)	$10,533,124	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
98	Sabine Marine Group Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$10,272,228	<0.1%	Rank history: #75 in FY2021, not on the FY2022–FY2023 lists and #82 in FY2025; up 87 since FY2023.
99	International Marine and Industrial Applicators LLC Through Imia, LLC Top agencies Navy (Department of the Navy)	$10,178,614	<0.1%	Rank history: not on the FY2021 list, #86 in FY2022, #59 in FY2023 and not on the FY2025 list; down 40 since FY2023.
100	Unithai Shipyard & Engineering Limited - Branch Top agencies Navy (Department of the Navy)	$10,134,470	<0.1%	Rank history: not on the FY2021–FY2023 lists and #38 in FY2025; new.

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100 of 1,380 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	$24,770,682,318	Huntington Ingalls Industries, Inc.

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 $25.8 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 2024 ran Oct 1, 2023 – Sep 30, 2024. 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 FY2023. "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 FY2023 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 FY2024?

1. Huntington Ingalls Industries, Inc. ($7.66B), 2. General Dynamics Corporation ($4.92B), 3. Bath Iron Works Corporation ($1.9B), 4. Fincantieri Marine Group Holdings Inc. ($1.13B), 5. Austal USA LLC ($1.1B), 6. National Steel and Shipbuilding Company ($1.1B), 7. BAE Systems ($606M), 8. Blueforge Alliance ($538M), 9. Vigor Industrial LLC ($417M), 10. Crowley Government Services, Inc. ($351M).

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