Top 100 Department of the Navy Contractors, FY2025

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Lockheed Martin Corporation 40 awardees, including Sikorsky Aircraft Corporation Top NAICS codes 336411 Aircraft Manufacturing 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 336414 Guided Missile and Space Vehicle Manufacturing	$41,374,529,507	21.4%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and #1 in FY2024; unchanged since FY2024.
2	General Dynamics Corporation 40 awardees, including Electric Boat Corporation, Bath Iron Works Corporation and National Steel and Shipbuilding Company Top NAICS codes 336611 Ship Building and Repairing 541330 Engineering Services 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing	$25,988,880,458	13.5%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023 and #2 in FY2024; unchanged since FY2024.
3	RTX Corporation 64 awardees, including Raytheon Company, Rockwell Collins, Inc. and Data Link Solutions LLC Top NAICS codes 336412 Aircraft Engine and Engine Parts Manufacturing 336414 Guided Missile and Space Vehicle Manufacturing 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing	$15,514,273,998	8.0%	Rank history: #3 in FY2021, #3 in FY2022, #3 in FY2023 and #3 in FY2024; unchanged since FY2024.
4	Huntington Ingalls Industries, Inc. 11 awardees, including Huntington Ingalls Inc., HII Mission Technologies Corp and HII Fleet Support Group LLC Top NAICS codes 336611 Ship Building and Repairing 541330 Engineering Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$8,937,960,130	4.6%	Rank history: #4 in FY2021, #4 in FY2022, #4 in FY2023 and #4 in FY2024; unchanged since FY2024.
5	The Boeing Company 29 awardees, including Insitu, Inc., Argon ST, Inc. and Jeppesen Foreflight, Inc. Top NAICS codes 336411 Aircraft Manufacturing 336412 Aircraft Engine and Engine Parts Manufacturing 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing	$4,219,653,447	2.2%	Rank history: #5 in FY2021, #6 in FY2022, #6 in FY2023 and #5 in FY2024; unchanged since FY2024.
6	Northrop Grumman Systems Corporation 54 awardees Top NAICS codes 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 336411 Aircraft Manufacturing	$3,868,312,661	2.0%	Rank history: #6 in FY2021, #5 in FY2022, #5 in FY2023 and #6 in FY2024; unchanged since FY2024.
7	BAE Systems 28 awardees, including BAE Systems Maritime Solutions San Diego Inc., BAE Systems Technology Solutions & Services Inc. and BAE Systems Land and Armaments L.P. Top NAICS codes 336611 Ship Building and Repairing 541330 Engineering Services 336992 Military Armored Vehicle, Tank, and Tank Component Manufacturing	$3,450,151,488	1.8%	Rank history: #8 in FY2021, #7 in FY2022, #7 in FY2023 and #7 in FY2024; unchanged since FY2024.
8	Bechtel Corp 2 awardees, including Bechtel Plant Machinery, Inc. and Bechtel National, Inc. Top NAICS codes 332410 Power Boiler and Heat Exchanger Manufacturing 336611 Ship Building and Repairing 237990 Other Heavy and Civil Engineering Construction	$2,148,097,055	1.1%	Rank history: #9 in FY2021, #8 in FY2022, #11 in FY2023 and #8 in FY2024; unchanged since FY2024.
9	Fluor Corporation 3 awardees, including Fluor Marine Propulsion, LLC and Fluor Intercontinental, Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 561210 Facilities Support Services	$1,935,053,434	1.0%	Rank history: #11 in FY2021, #10 in FY2022, #8 in FY2023 and #10 in FY2024; up 1 since FY2024.
10	Textron Inc. 11 awardees, including Textron Systems Corp, Textron Aviation Inc. and Bell Textron Inc. Top NAICS codes 336611 Ship Building and Repairing 336411 Aircraft Manufacturing 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing	$1,780,338,214	0.9%	Rank history: #36 in FY2021, #40 in FY2022, #21 in FY2023 and #18 in FY2024; up 8 since FY2024.
11	Amentum Holdings, Inc. 19 awardees, including Amentum Services, Inc., Dzsp 21 LLC and Amentum Technology, Inc. Top NAICS codes 541330 Engineering Services 488190 Other Support Activities for Air Transportation 561210 Facilities Support Services	$1,631,789,328	0.8%	Rank history: not on the FY2021–FY2023 lists and #55 in FY2024; up 44 since FY2024.
12	Leidos Holdings, Inc. 17 awardees, including Leidos, Inc., Gibbs & Cox Inc. and Stantec GS - WSP JV Top NAICS codes 541512 Computer Systems Design Services 541330 Engineering Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$1,542,580,005	0.8%	Rank history: #16 in FY2021, #11 in FY2022, #12 in FY2023 and #12 in FY2024; unchanged since FY2024.
13	Analytic Services Inc. 2 awardees, including Advanced Technology International Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$1,537,508,130	0.8%	Rank history: #35 in FY2021, #26 in FY2022, #14 in FY2023 and #43 in FY2024; up 30 since FY2024.
14	L3Harris Technologies, Inc. 56 awardees, including L3 Technologies, Inc. and L3Harris Interstate Electronics Corporation Top NAICS codes 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 541330 Engineering Services	$1,534,145,695	0.8%	Rank history: #13 in FY2021, #12 in FY2022, #10 in FY2023 and #14 in FY2024; unchanged since FY2024.
15	Dragados / Hawaiian Dredging / Orion JV Top NAICS codes 237990 Other Heavy and Civil Engineering Construction	$1,467,673,186	0.8%	Rank history: not on the FY2021–FY2022 lists, #30 in FY2023 and #22 in FY2024; up 7 since FY2024.
16	V2X, Inc. 7 awardees, including V2X Aerospace LLC, V2X Systems LLC and Vectrus Systems LLC Top NAICS codes 488190 Other Support Activities for Air Transportation 561210 Facilities Support Services 541330 Engineering Services	$1,286,826,403	0.7%	Rank history: not on the FY2021–FY2023 lists and #20 in FY2024; up 4 since FY2024.
17	Booz Allen Hamilton Holding Corporation 4 awardees, including Booz Allen Hamilton Inc., Everwatch Solutions Inc. and Ultra Electronics Advanced Tactical Systems Inc. Top NAICS codes 541330 Engineering Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541611 Administrative Management and General Management Consulting Services	$1,226,834,685	0.6%	Rank history: #15 in FY2021, #14 in FY2022, #13 in FY2023 and #15 in FY2024; down 2 since FY2024.
18	Bell Boeing Joint Project Office Top NAICS codes 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing 336411 Aircraft Manufacturing 541512 Computer Systems Design Services	$1,166,865,865	0.6%	Rank history: #7 in FY2021, #9 in FY2022, #18 in FY2023 and #25 in FY2024; up 7 since FY2024.
19	Honeywell International Inc. 23 awardees, including National Technology & Engineering Solutions of Sandia, LLC and Honeywell Federal Manufacturing & Technologies, LLC Top NAICS codes 561210 Facilities Support Services 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing 333611 Turbine and Turbine Generator Set Units Manufacturing	$1,047,480,366	0.5%	Rank history: #74 in FY2021, #57 in FY2022, #26 in FY2023 and #54 in FY2024; up 35 since FY2024.
20	Science Applications International Corporation 3 awardees Top NAICS codes 541330 Engineering Services 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 335999 All Other Miscellaneous Electrical Equipment and Component Manufacturing	$970,019,863	0.5%	Rank history: #19 in FY2021, #16 in FY2022, #17 in FY2023 and #21 in FY2024; up 1 since FY2024.
21	CACI International Inc. 16 awardees, including Caci, Inc. - Federal, Caci Enterprise Solutions, LLC and Caci Technologies, LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541330 Engineering Services 541511 Custom Computer Programming Services	$894,796,892	0.5%	Rank history: #22 in FY2021, #28 in FY2022, #22 in FY2023 and #28 in FY2024; up 7 since FY2024.
22	Ministry of Defense	$861,627,503	0.4%	Rank history: #12 in FY2021, #13 in FY2022, #15 in FY2023 and #24 in FY2024; up 2 since FY2024.
23	General Electric Company 19 awardees, including GE Aviation Systems LLC, GE Energy Power Conversion Naval Systems Inc. and Innoveering LLC Top NAICS codes 336412 Aircraft Engine and Engine Parts Manufacturing 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing 334412 Bare Printed Circuit Board Manufacturing	$808,600,062	0.4%	Rank history: #10 in FY2021, #17 in FY2022, #9 in FY2023 and #19 in FY2024; down 4 since FY2024.
24	Bollinger Shipyards Lockport, L.L.C. 2 awardees, including Bollinger Mississippi Shipbuilding, LLC Top NAICS codes 336611 Ship Building and Repairing	$781,745,166	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
25	Rolls-Royce Corporation 5 awardees, including Rolls-Royce Marine North America Inc., Rolls-Royce Solutions America Inc. and Rolls-Royce North American Technologies Inc. Top NAICS codes 336412 Aircraft Engine and Engine Parts Manufacturing 336611 Ship Building and Repairing 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing	$779,237,444	0.4%	Rank history: not on the FY2021–FY2023 lists and #58 in FY2024; up 33 since FY2024.
26	Smartronix, LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541512 Computer Systems Design Services 541330 Engineering Services	$730,530,970	0.4%	Rank history: not on the FY2021–FY2023 lists and #31 in FY2024; up 5 since FY2024.
27	Serco Inc 2 awardees Top NAICS codes 541330 Engineering Services 561621 Security Systems Services (except Locksmiths) 334290 Other Communications Equipment Manufacturing	$699,159,152	0.4%	Rank history: not on the FY2021–FY2022 lists, #38 in FY2023 and #27 in FY2024; unchanged since FY2024.
28	Kongsberg Defence & Aerospace AS 3 awardees, including Kongsberg Defense & Aerospace, Inc. and Kongsberg Geospatial Ltd. Top NAICS codes 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 336992 Military Armored Vehicle, Tank, and Tank Component Manufacturing 336414 Guided Missile and Space Vehicle Manufacturing	$683,067,401	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
29	Johns Hopkins University 2 awardees, including The Johns Hopkins University Applied Physics Laboratory LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541330 Engineering Services 611310 Colleges, Universities, and Professional Schools	$650,697,654	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
30	KBR Wyle Services LLC 5 awardees, including KBR Services, LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 561210 Facilities Support Services 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance	$593,915,965	0.3%	Rank history: not on the FY2021–FY2023 lists and #33 in FY2024; up 3 since FY2024.
31	Tpc-Nan A Joint Venture Top NAICS codes 237990 Other Heavy and Civil Engineering Construction	$579,073,022	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
32	RQ Construction, LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$556,247,968	0.3%	Rank history: #34 in FY2021, #32 in FY2022, #31 in FY2023 and #45 in FY2024; up 13 since FY2024.
33	Dell Technologies Inc. 3 awardees, including Dell Marketing L.P., Dell Federal Systems L.P and Dell Computer Holdings L.P. Top NAICS codes 511210 Software Publishers 334111 Electronic Computer Manufacturing 334112 Computer Storage Device Manufacturing	$517,923,860	0.3%	Rank history: not on the FY2021–FY2023 lists and #38 in FY2024; up 5 since FY2024.
34	Undersea Sensor Systems Inc. 4 awardees, including Ultra Electronics TCS Inc. and Ultra Electronics Ice Inc. Top NAICS codes 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334210 Telephone Apparatus Manufacturing 334513 Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables	$461,141,611	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
35	Core Tech-Hdcc-Kajima LLC Top NAICS codes 237130 Power and Communication Line and Related Structures Construction 236220 Commercial and Institutional Building Construction 236116 New Multifamily Housing Construction (except For-Sale Builders)	$457,810,059	0.2%	Rank history: #17 in FY2021, not on the FY2022 list, #56 in FY2023 and #53 in FY2024; up 18 since FY2024.
36	Ram-System GMBH Top NAICS codes 336414 Guided Missile and Space Vehicle Manufacturing 334412 Bare Printed Circuit Board Manufacturing 333618 Other Engine Equipment Manufacturing	$440,906,350	0.2%	Rank history: #71 in FY2021, not on the FY2022 list, #23 in FY2023 and not on the FY2024 list; returned.
37	Vigor Industrial LLC 2 awardees, including Vigor Marine LLC and Vigor Works LLC Top NAICS codes 336611 Ship Building and Repairing 336612 Boat Building	$438,240,704	0.2%	Rank history: not on the FY2021–FY2023 lists and #73 in FY2024; up 36 since FY2024.
38	The Charles Stark Draper Laboratory, Inc. Top NAICS codes 541330 Engineering Services 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$433,455,024	0.2%	Rank history: #32 in FY2021, #37 in FY2022, #32 in FY2023 and #26 in FY2024; down 12 since FY2024.
39	Leonardo S.p.A. 25 awardees, including Laurel Technologies Partnership, DRS Systems, Inc. and Leonardo UK Ltd Top NAICS codes 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334118 Computer Terminal and Other Computer Peripheral Equipment Manufacturing 334519 Other Measuring and Controlling Device Manufacturing	$401,718,550	0.2%	Rank history: #30 in FY2021, #36 in FY2022, #35 in FY2023 and #35 in FY2024; down 4 since FY2024.
40	Peter Kiewit Sons', Inc. 3 awardees, including 381 Constructors and Kiewit Infrastructure West Co Top NAICS codes 237990 Other Heavy and Civil Engineering Construction 237310 Highway, Street, and Bridge Construction 236220 Commercial and Institutional Building Construction	$378,029,937	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
41	Fairwinds Technologies LLC Top NAICS codes 334419 Other Electronic Component Manufacturing 334412 Bare Printed Circuit Board Manufacturing 541519 Other Computer Related Services	$377,378,543	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
42	Slsco, Ltd. Top NAICS codes 237310 Highway, Street, and Bridge Construction 236220 Commercial and Institutional Building Construction 624230 Emergency and Other Relief Services	$369,832,087	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
43	Blueforge Alliance Top NAICS codes 336611 Ship Building and Repairing	$366,110,272	0.2%	Rank history: not on the FY2021–FY2023 lists and #30 in FY2024; down 13 since FY2024.
44	Clark Construction Group LLC 2 awardees, including Clark Construction Group - California, LP Top NAICS codes 236220 Commercial and Institutional Building Construction	$354,240,044	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
45	Deloitte 2 awardees, including Deloitte Consulting LLP and Deloitte & Touche LLP Top NAICS codes 541219 Other Accounting Services 541611 Administrative Management and General Management Consulting Services 541512 Computer Systems Design Services	$350,533,002	0.2%	Rank history: not on the FY2021–FY2023 lists and #39 in FY2024; down 6 since FY2024.
46	Nan Inc. Top NAICS codes 237990 Other Heavy and Civil Engineering Construction 236220 Commercial and Institutional Building Construction 237310 Highway, Street, and Bridge Construction	$345,976,282	0.2%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2023 and not on the FY2024 list; up 76 since FY2024.
47	General Atomics 2 awardees Top NAICS codes 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing 541330 Engineering Services 336611 Ship Building and Repairing	$344,533,559	0.2%	Rank history: not on the FY2021–FY2023 lists and #97 in FY2024; up 50 since FY2024.
48	Patriot Contract Services, LLC Top NAICS codes 483111 Deep Sea Freight Transportation	$337,976,109	0.2%	Rank history: #45 in FY2021, #39 in FY2022, #39 in FY2023 and #36 in FY2024; down 12 since FY2024.
49	Mantech Tsg-2 Joint Venture Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$336,828,451	0.2%	Rank history: #50 in FY2021, #58 in FY2022, #55 in FY2023 and #32 in FY2024; down 17 since FY2024.
50	Scientific Research Corporation 2 awardees Top NAICS codes 541330 Engineering Services 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334610 Manufacturing and Reproducing Magnetic and Optical Media	$314,217,397	0.2%	Rank history: #53 in FY2021, #65 in FY2022, #54 in FY2023 and #44 in FY2024; down 6 since FY2024.
51	Crowley Government Services, Inc. Top NAICS codes 483111 Deep Sea Freight Transportation 541614 Process, Physical Distribution, and Logistics Consulting Services	$292,475,621	0.2%	Rank history: not on the FY2021–FY2022 lists, #48 in FY2023 and #41 in FY2024; down 10 since FY2024.
52	ManTech International Corporation 9 awardees, including Mantech Advanced Systems International, Inc., Standard Aero (San Antonio) Inc. and Imia, LLC Top NAICS codes 541330 Engineering Services 336412 Aircraft Engine and Engine Parts Manufacturing 336611 Ship Building and Repairing	$280,072,152	0.1%	Rank history: #61 in FY2021, #50 in FY2022, #59 in FY2023 and #51 in FY2024; down 1 since FY2024.
53	Sodexo Management Inc. Top NAICS codes 722310 Food Service Contractors	$275,266,829	0.1%	Rank history: not on the FY2021 list, #79 in FY2022, #63 in FY2023 and #46 in FY2024; down 7 since FY2024.
54	The Pennsylvania State University Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$264,231,186	0.1%	Rank history: #54 in FY2021, #51 in FY2022, #49 in FY2023 and #50 in FY2024; down 4 since FY2024.
55	Carahsoft Technology Corp Top NAICS codes 511210 Software Publishers 541519 Other Computer Related Services 513210 Software Publishers	$261,976,403	0.1%	Rank history: #82 in FY2021, #73 in FY2022, #93 in FY2023 and #59 in FY2024; up 4 since FY2024.
56	Ocean Shipholdings, Inc. 3 awardees, including Ocean Ships, Inc. and Ocean Duchess, Inc. Top NAICS codes 483111 Deep Sea Freight Transportation	$254,683,916	0.1%	Rank history: not on the FY2021 list, #59 in FY2022, #52 in FY2023 and #70 in FY2024; up 14 since FY2024.
57	Bath Iron Works Corporation Top NAICS codes 336611 Ship Building and Repairing 332919 Other Metal Valve and Pipe Fitting Manufacturing	$250,726,100	0.1%	Rank history: not on the FY2021–FY2023 lists and #9 in FY2024; down 48 since FY2024.
58	General Atomics Aeronautical Systems, Inc. Top NAICS codes 336411 Aircraft Manufacturing 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$233,227,912	0.1%	Rank history: not on the FY2021–FY2024 lists; up 74 since FY2024.
59	Kiewit-Alberici Siop Macc AJV Top NAICS codes 237990 Other Heavy and Civil Engineering Construction	$228,800,000	0.1%	Rank history: not on the FY2021–FY2022 lists, #42 in FY2023 and not on the FY2024 list; returned.
60	Detyens Shipyards Inc. Top NAICS codes 336611 Ship Building and Repairing	$225,259,311	0.1%	Rank history: not on the FY2021–FY2024 lists; up 46 since FY2024.
61	Dpr-Rq Construction, LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$222,554,388	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
62	Ultra Electronics Ocean Systems Inc. 3 awardees, including Measurement Systems Inc. Top NAICS codes 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 333914 Measuring, Dispensing, and Other Pumping Equipment Manufacturing 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing	$215,673,792	0.1%	Rank history: not on the FY2021–FY2024 lists; up 75 since FY2024.
63	Systems Planning and Analysis, Inc. 5 awardees, including Group W Inc. and Red Six Solutions, LLC Top NAICS codes 541330 Engineering Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541611 Administrative Management and General Management Consulting Services	$215,101,729	0.1%	Rank history: not on the FY2021–FY2023 lists and #66 in FY2024; up 3 since FY2024.
64	Saronic Technologies, Inc.	$211,725,685	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
65	International Business Machines Corporation 3 awardees, including Enterprise Electronics Corp Top NAICS codes 541330 Engineering Services 541512 Computer Systems Design Services 541511 Custom Computer Programming Services	$209,659,016	0.1%	Rank history: #68 in FY2021, #66 in FY2022, #62 in FY2023 and #52 in FY2024; down 13 since FY2024.
66	Global Pacific Design Builders, LLC Top NAICS codes 236116 New Multifamily Housing Construction (except For-Sale Builders) 561210 Facilities Support Services	$208,721,440	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
67	The Whiting-Turner Contracting Company Top NAICS codes 236220 Commercial and Institutional Building Construction 541990 All Other Professional, Scientific, and Technical Services	$208,150,679	0.1%	Rank history: #31 in FY2021, not on the FY2022 list, #51 in FY2023 and #42 in FY2024; down 25 since FY2024.
68	Sauer Construction LLC Top NAICS codes 236220 Commercial and Institutional Building Construction 237990 Other Heavy and Civil Engineering Construction	$195,440,775	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
69	Granite-Obayashi 2, A Joint Venture Top NAICS codes 236220 Commercial and Institutional Building Construction	$189,613,433	0.1%	Rank history: not on the FY2021–FY2022 lists, #100 in FY2023 and #99 in FY2024; up 30 since FY2024.
70	Harper Construction Company Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction	$188,127,006	0.1%	Rank history: not on the FY2021–FY2023 lists and #37 in FY2024; down 33 since FY2024.
71	U.S. Marine Management LLC Top NAICS codes 483111 Deep Sea Freight Transportation	$186,332,089	0.1%	Rank history: not on the FY2021–FY2023 lists and #94 in FY2024; up 23 since FY2024.
72	Ukpeagvik Inupiat Corporation 12 awardees, including Bowhead Program Management & Operations, LLC, Bowhead Weapons Development Solutions LLC and Bowhead Cybersecurity Solutions & Services, LLC Top NAICS codes 541330 Engineering Services 541511 Custom Computer Programming Services 541512 Computer Systems Design Services	$185,658,501	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
73	OCI Overseas Holding Limited Through Contrack Watts Inc. Top NAICS codes 237130 Power and Communication Line and Related Structures Construction 237990 Other Heavy and Civil Engineering Construction	$184,610,814	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
74	Tote Services, LLC Top NAICS codes 483111 Deep Sea Freight Transportation 541330 Engineering Services	$180,476,956	0.1%	Rank history: not on the FY2021–FY2023 lists and #82 in FY2024; up 8 since FY2024.
75	Defense Systems and Solutions Top NAICS codes 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing	$178,594,598	0.1%	Rank history: not on the FY2021–FY2023 lists and #60 in FY2024; down 15 since FY2024.
76	Sierra Nevada Company, LLC 3 awardees Top NAICS codes 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 336419 Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing 561990 All Other Support Services	$178,136,452	0.1%	Rank history: not on the FY2021–FY2023 lists and #98 in FY2024; up 22 since FY2024.
77	Precise Systems, Inc. 6 awardees, including Excet, LLC, Jardon & Howard Technologies LLC and Ternion LLC Top NAICS codes 541330 Engineering Services 541511 Custom Computer Programming Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$177,099,513	0.1%	Rank history: #98 in FY2021, #86 in FY2022, #83 in FY2023 and #77 in FY2024; unchanged since FY2024.
78	Johnson Controls Federal Systems, LLC 4 awardees, including Johnson Controls Navy Systems, LLC, Johnson Controls Government Systems, LLC and Johnson Controls Building Automation Systems, LLC Top NAICS codes 333415 Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing 541330 Engineering Services 561210 Facilities Support Services	$176,572,046	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
79	B.l. Harbert Holdings, L.L.C. Through BL Harbert International LLC Top NAICS codes 237130 Power and Communication Line and Related Structures Construction 236220 Commercial and Institutional Building Construction	$168,795,837	0.1%	Rank history: not on the FY2021–FY2023 lists and #57 in FY2024; down 22 since FY2024.
80	Marine Hydraulics International, LLC Top NAICS codes 336611 Ship Building and Repairing	$164,510,800	0.1%	Rank history: not on the FY2021–FY2024 lists; up 196 since FY2024.
81	Resource Management Concepts, Inc. Top NAICS codes 541330 Engineering Services 541513 Computer Facilities Management Services	$163,756,113	0.1%	Rank history: not on the FY2021–FY2023 lists and #100 in FY2024; up 19 since FY2024.
82	TD Synnex Corporation 2 awardees, including DLT Solutions, LLC Top NAICS codes 541519 Other Computer Related Services 334111 Electronic Computer Manufacturing 513210 Software Publishers	$161,557,126	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
83	Kay and Associates, Inc. Top NAICS codes 488190 Other Support Activities for Air Transportation 336411 Aircraft Manufacturing	$158,178,722	0.1%	Rank history: #83 in FY2021, #100 in FY2022 and not on the FY2023–FY2024 lists; up 35 since FY2024.
84	Fidelity Technologies Corporation 2 awardees, including Fidelity Technology Services, LLC Top NAICS codes 541330 Engineering Services	$157,153,589	0.1%	Rank history: not on the FY2021–FY2023 lists and #79 in FY2024; down 5 since FY2024.
85	Walsh Federal LLC Top NAICS codes 236220 Commercial and Institutional Building Construction 236210 Industrial Building Construction 541990 All Other Professional, Scientific, and Technical Services	$156,688,946	0.1%	Rank history: not on the FY2021–FY2022 lists, #58 in FY2023 and not on the FY2024 list; up 39 since FY2024.
86	HPI Federal LLC Top NAICS codes 541512 Computer Systems Design Services 334111 Electronic Computer Manufacturing	$154,520,145	0.1%	Rank history: not on the FY2021–FY2024 lists; up 16 since FY2024.
87	Bering Straits Native Corporation 13 awardees, including Arcticom, LLC, Bering Straits Professional Services, LLC and Stampede Ventures, Inc. Top NAICS codes 541330 Engineering Services 561210 Facilities Support Services 236220 Commercial and Institutional Building Construction	$154,464,695	0.1%	Rank history: not on the FY2021–FY2024 lists; up 240 since FY2024.
88	The Mitre Corporation Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541720 Research and Development in the Social Sciences and Humanities 541618 Other Management Consulting Services	$140,153,110	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
89	L3 Technologies, Inc. Top NAICS codes 334290 Other Communications Equipment Manufacturing 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing 541714 Research and Development in Biotechnology (except Nanobiotechnology)	$138,291,029	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
90	East Coast Repair & Fabrication, LLC Top NAICS codes 336611 Ship Building and Repairing	$138,135,595	0.1%	Rank history: not on the FY2021–FY2024 lists; up 18 since FY2024.
91	Inmarsat Government, Inc. Top NAICS codes 517410 Satellite Telecommunications 541519 Other Computer Related Services 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing	$136,951,099	0.1%	Rank history: not on the FY2021–FY2023 lists and #93 in FY2024; up 2 since FY2024.
92	Assurance Technology Corp Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$136,626,683	0.1%	Rank history: not on the FY2021–FY2024 lists; up 81 since FY2024.
93	Hawaii Harbors Constructors JV Top NAICS codes 237990 Other Heavy and Civil Engineering Construction	$136,343,281	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
94	Goodwill Industries of Southeastern Wisconsin, Inc. Top NAICS codes 722310 Food Service Contractors 561110 Office Administrative Services	$134,855,744	0.1%	Rank history: not on the FY2021 list, #94 in FY2022, #91 in FY2023 and not on the FY2024 list; up 165 since FY2024.
95	Amazon Web Services, Inc. Top NAICS codes 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services	$131,837,305	0.1%	Rank history: not on the FY2021–FY2024 lists; up 64 since FY2024.
96	Advanced Computer Concepts, Inc. Top NAICS codes 541519 Other Computer Related Services 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing 334515 Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals	$131,248,602	0.1%	Rank history: not on the FY2021–FY2022 lists, #89 in FY2023 and #88 in FY2024; down 8 since FY2024.
97	Peraton Inc. 2 awardees, including Peraton Enterprise Solutions LLC Top NAICS codes 541330 Engineering Services 541512 Computer Systems Design Services 541713 Research and Development in Nanotechnology	$131,160,467	0.1%	Rank history: not on the FY2021–FY2024 lists; up 37 since FY2024.
98	Black Construction-Tutor Perini JV Top NAICS codes 236220 Commercial and Institutional Building Construction 236116 New Multifamily Housing Construction (except For-Sale Builders) 237990 Other Heavy and Civil Engineering Construction	$129,488,950	0.1%	Rank history: #99 in FY2021, #44 in FY2022, not on the FY2023 list and #56 in FY2024; down 42 since FY2024.
99	Noblis, Inc. 2 awardees, including Noblis MSD LLC Top NAICS codes 541330 Engineering Services 336611 Ship Building and Repairing 541990 All Other Professional, Scientific, and Technical Services	$125,413,366	0.1%	Rank history: not on the FY2021–FY2022 lists, #97 in FY2023 and not on the FY2024 list; returned.
100	Hensel Phelps Construction Co 5 awardees, including Hensel Phelps - Shimizu JV Top NAICS codes 236220 Commercial and Institutional Building Construction	$125,349,286	0.1%	Rank history: #46 in FY2021, #46 in FY2022, #87 in FY2023 and #72 in FY2024; down 28 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 $193 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. 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 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 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.

Quick answers