Top 100 Department of the Navy Contractors, FY2024

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Lockheed Martin Corporation 52 awardees, including Sikorsky Aircraft Corporation and Lockheed Martin Australia PTY Limited Top NAICS codes 336411 Aircraft Manufacturing 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing	$21,136,962,404	14.1%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and #1 in FY2025; unchanged since FY2023.
2	General Dynamics Corporation 36 awardees, including Electric Boat Corporation, General Dynamics Information Technology, Inc. and Metro Machine Corp. Top NAICS codes 541330 Engineering Services 336611 Ship Building and Repairing 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing	$11,095,195,447	7.4%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023 and #2 in FY2025; unchanged since FY2023.
3	RTX Corporation 104 awardees, including Raytheon Company, Rockwell Collins, Inc. and Data Link Solutions LLC Top NAICS codes 336414 Guided Missile and Space Vehicle Manufacturing 336412 Aircraft Engine and Engine Parts Manufacturing 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing	$9,884,855,617	6.6%	Rank history: #3 in FY2021, #3 in FY2022, #3 in FY2023 and #3 in FY2025; unchanged since FY2023.
4	Huntington Ingalls Industries, Inc. 11 awardees, including Huntington Ingalls Incorporated, 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)	$8,449,246,831	5.6%	Rank history: #4 in FY2021, #4 in FY2022, #4 in FY2023 and #4 in FY2025; unchanged since FY2023.
5	The Boeing Company 40 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	$5,609,293,159	3.7%	Rank history: #5 in FY2021, #6 in FY2022, #6 in FY2023 and #5 in FY2025; up 1 since FY2023.
6	Northrop Grumman Corporation 59 awardees, including Northrop Grumman Systems Corporation and Alliant Techsystems Operations LLC Top NAICS codes 336411 Aircraft Manufacturing 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing	$4,683,785,561	3.1%	Rank history: #6 in FY2021, #5 in FY2022, #5 in FY2023 and #6 in FY2025; down 1 since FY2023.
7	BAE Systems 46 awardees, including BAE Systems Information and Electronic Systems Integration Inc., BAE Systems Land & Armaments L.P. and BAE Systems Technology Solutions & Services Inc. Top NAICS codes 541330 Engineering Services 336992 Military Armored Vehicle, Tank, and Tank Component Manufacturing 336611 Ship Building and Repairing	$2,813,330,880	1.9%	Rank history: #8 in FY2021, #7 in FY2022, #7 in FY2023 and #7 in FY2025; unchanged since FY2023.
8	Bechtel Corp 2 awardees, including Bechtel Plant Machinery, Inc. and Bechtel National, Inc. Top NAICS codes 332410 Power Boiler and Heat Exchanger Manufacturing 237990 Other Heavy and Civil Engineering Construction	$2,182,007,336	1.5%	Rank history: #9 in FY2021, #8 in FY2022, #11 in FY2023 and #8 in FY2025; up 3 since FY2023.
9	Bath Iron Works Corporation Top NAICS codes 336611 Ship Building and Repairing 326220 Rubber and Plastics Hoses and Belting Manufacturing 326122 Plastics Pipe and Pipe Fitting Manufacturing	$1,898,754,933	1.3%	Rank history: not on the FY2021–FY2023 lists and #57 in FY2025; new.
10	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 236220 Commercial and Institutional Building Construction	$1,637,765,297	1.1%	Rank history: #11 in FY2021, #10 in FY2022, #8 in FY2023 and #9 in FY2025; down 2 since FY2023.
11	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)	$1,600,920,193	1.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
12	Leidos Holdings, Inc. 21 awardees, including Leidos, Inc., Gibbs & Cox Inc. and Stantec GS - WSP JV Top NAICS codes 541512 Computer Systems Design Services 541330 Engineering Services 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing	$1,551,235,306	1.0%	Rank history: #16 in FY2021, #11 in FY2022, #12 in FY2023 and #12 in FY2025; unchanged since FY2023.
13	Amentum Services, Inc. 10 awardees, including Dzsp 21 LLC, PAE Government Services, Inc. and Dyncorp International LLC Top NAICS codes 541330 Engineering Services 488190 Other Support Activities for Air Transportation 561210 Facilities Support Services	$1,418,749,924	0.9%	Rank history: #18 in FY2021, #15 in FY2022, #16 in FY2023 and not on the FY2025 list; up 3 since FY2023.
14	L3Harris Technologies, Inc. 54 awardees, including L3 Technologies, Inc., L3Harris Interstate Electronics Corporation and L3Harris Nexgen Communications LLC 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 334290 Other Communications Equipment Manufacturing	$1,330,899,228	0.9%	Rank history: #13 in FY2021, #12 in FY2022, #10 in FY2023 and #14 in FY2025; down 4 since FY2023.
15	Booz Allen Hamilton Holding Corporation 4 awardees, including Booz Allen Hamilton Inc. and Everwatch Solutions 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	$1,121,932,933	0.7%	Rank history: #15 in FY2021, #14 in FY2022, #13 in FY2023 and #17 in FY2025; down 2 since FY2023.
16	Fincantieri Marine Group Holdings Inc. Through Marinette Marine Corporation Top NAICS codes 336611 Ship Building and Repairing 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing	$1,100,600,372	0.7%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
17	National Steel and Shipbuilding Company Top NAICS codes 336611 Ship Building and Repairing	$1,095,806,106	0.7%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
18	Textron Inc. 8 awardees, including Textron Systems Corp, Textron Aviation Inc. and Bell Textron Inc. Top NAICS codes 336411 Aircraft Manufacturing 336611 Ship Building and Repairing 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing	$1,086,834,001	0.7%	Rank history: #36 in FY2021, #40 in FY2022, #21 in FY2023 and #10 in FY2025; up 3 since FY2023.
19	General Electric Company 24 awardees, including GE Aviation Systems LLC and GE Energy Power Conversion Naval Systems Inc. Top NAICS codes 336412 Aircraft Engine and Engine Parts Manufacturing 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing 333611 Turbine and Turbine Generator Set Units Manufacturing	$1,072,412,347	0.7%	Rank history: #10 in FY2021, #17 in FY2022, #9 in FY2023 and #23 in FY2025; down 10 since FY2023.
20	V2X, Inc. 4 awardees, including V2X Aerospace LLC, V2X Systems LLC and Vectrus Systems LLC Top NAICS codes 488190 Other Support Activities for Air Transportation 541330 Engineering Services 561210 Facilities Support Services	$1,052,305,815	0.7%	Rank history: not on the FY2021–FY2023 lists and #16 in FY2025; new.
21	Science Applications International Corporation 11 awardees, including Asrc Federal Facilities Logistics, LLC 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	$886,114,752	0.6%	Rank history: #19 in FY2021, #16 in FY2022, #17 in FY2023 and #20 in FY2025; down 4 since FY2023.
22	Dragados / Hawaiian Dredging / Orion JV Top NAICS codes 237990 Other Heavy and Civil Engineering Construction	$790,689,582	0.5%	Rank history: not on the FY2021–FY2022 lists, #30 in FY2023 and #15 in FY2025; up 8 since FY2023.
23	Austal USA LLC Top NAICS codes 336611 Ship Building and Repairing 811210 Electronic and Precision Equipment Repair and Maintenance 333618 Other Engine Equipment Manufacturing	$789,940,827	0.5%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
24	Ministry of Defense	$789,873,930	0.5%	Rank history: #12 in FY2021, #13 in FY2022, #15 in FY2023 and #22 in FY2025; down 9 since FY2023.
25	Bell Boeing Joint Project Office Top NAICS codes 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing 541512 Computer Systems Design Services 336411 Aircraft Manufacturing	$756,761,850	0.5%	Rank history: #7 in FY2021, #9 in FY2022, #18 in FY2023 and #18 in FY2025; down 7 since FY2023.
26	The Charles Stark Draper Laboratory, Inc. Top NAICS codes 541330 Engineering Services 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 336419 Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing	$728,271,528	0.5%	Rank history: #32 in FY2021, #37 in FY2022, #32 in FY2023 and #38 in FY2025; up 6 since FY2023.
27	Serco Inc 3 awardees, including Serco-Ips Corporation and Whitney Bradley & Brown, Inc. Top NAICS codes 541330 Engineering Services 561621 Security Systems Services (except Locksmiths) 334290 Other Communications Equipment Manufacturing	$647,460,071	0.4%	Rank history: not on the FY2021–FY2022 lists, #38 in FY2023 and #27 in FY2025; up 11 since FY2023.
28	CACI International Inc. 9 awardees, including Caci, Inc. - Federal, Caci Technologies, LLC and Caci Enterprise Solutions, LLC Top NAICS codes 541330 Engineering Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541512 Computer Systems Design Services	$626,780,441	0.4%	Rank history: #22 in FY2021, #28 in FY2022, #22 in FY2023 and #21 in FY2025; down 6 since FY2023.
29	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	$596,305,130	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
30	Blueforge Alliance Top NAICS codes 336611 Ship Building and Repairing	$537,884,552	0.4%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2025; new.
31	Smartronix, LLC Top NAICS codes 541330 Engineering Services 541512 Computer Systems Design Services 541990 All Other Professional, Scientific, and Technical Services	$506,559,828	0.3%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2025; new.
32	Mantech Tsg-2 Joint Venture Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$461,142,841	0.3%	Rank history: #50 in FY2021, #58 in FY2022, #55 in FY2023 and #49 in FY2025; up 23 since FY2023.
33	KBR Wyle Services LLC 6 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 541330 Engineering Services	$456,965,063	0.3%	Rank history: not on the FY2021–FY2023 lists and #30 in FY2025; new.
34	381 Constructors Top NAICS codes 237990 Other Heavy and Civil Engineering Construction	$447,381,147	0.3%	Rank history: not on the FY2021 list, #30 in FY2022, #33 in FY2023 and not on the FY2025 list; down 1 since FY2023.
35	Leonardo S.p.A. 21 awardees, including Laurel Technologies Partnership, DRS Systems, Inc. and DRS Naval Power Systems Inc. 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	$440,062,439	0.3%	Rank history: #30 in FY2021, #36 in FY2022, #35 in FY2023 and #39 in FY2025; unchanged since FY2023.
36	Patriot Contract Services, LLC Top NAICS codes 483111 Deep Sea Freight Transportation	$424,433,664	0.3%	Rank history: #45 in FY2021, #39 in FY2022, #39 in FY2023 and #48 in FY2025; up 3 since FY2023.
37	Harper Construction Company Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction	$413,684,294	0.3%	Rank history: not on the FY2021–FY2023 lists and #70 in FY2025; new.
38	Dell Technologies Inc. 2 awardees, including Dell Marketing L.P. and Dell Federal Systems L.P Top NAICS codes 511210 Software Publishers 334111 Electronic Computer Manufacturing 541519 Other Computer Related Services	$387,259,933	0.3%	Rank history: not on the FY2021–FY2023 lists and #33 in FY2025; new.
39	Deloitte 3 awardees, including Deloitte Consulting LLP, Deloitte & Touche LLP and Deloitte Financial Advisory Services LLP Top NAICS codes 541219 Other Accounting Services 541611 Administrative Management and General Management Consulting Services 541330 Engineering Services	$354,677,522	0.2%	Rank history: not on the FY2021–FY2023 lists and #45 in FY2025; new.
40	AECOM Technical Services, Inc. Top NAICS codes 541330 Engineering Services 236220 Commercial and Institutional Building Construction 562910 Remediation Services	$334,199,483	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
41	Crowley Government Services, Inc. 3 awardees, including Crowley Marine Services, Inc. Top NAICS codes 483111 Deep Sea Freight Transportation 488330 Navigational Services to Shipping 541614 Process, Physical Distribution, and Logistics Consulting Services	$311,255,549	0.2%	Rank history: not on the FY2021–FY2022 lists, #48 in FY2023 and #51 in FY2025; up 7 since FY2023.
42	The Whiting-Turner Contracting Company Top NAICS codes 236220 Commercial and Institutional Building Construction 237310 Highway, Street, and Bridge Construction	$301,118,887	0.2%	Rank history: #31 in FY2021, not on the FY2022 list, #51 in FY2023 and #67 in FY2025; up 9 since FY2023.
43	Analytic Services Inc. 3 awardees, including Advanced Technology International and Delphinus Engineering LLC Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$300,988,550	0.2%	Rank history: #35 in FY2021, #26 in FY2022, #14 in FY2023 and #13 in FY2025; down 29 since FY2023.
44	Scientific Research Corporation Top NAICS codes 541330 Engineering Services 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334111 Electronic Computer Manufacturing	$286,875,272	0.2%	Rank history: #53 in FY2021, #65 in FY2022, #54 in FY2023 and #50 in FY2025; up 10 since FY2023.
45	RQ Construction, LLC Top NAICS codes 236220 Commercial and Institutional Building Construction 237110 Water and Sewer Line and Related Structures Construction	$278,238,102	0.2%	Rank history: #34 in FY2021, #32 in FY2022, #31 in FY2023 and #32 in FY2025; down 14 since FY2023.
46	Sodexo Management Inc. 2 awardees Top NAICS codes 722310 Food Service Contractors	$273,737,044	0.2%	Rank history: not on the FY2021 list, #79 in FY2022, #63 in FY2023 and #53 in FY2025; up 17 since FY2023.
47	Thomas Scientific LLC 2 awardees, including Vigor Marine LLC and Unison Software Inc. Top NAICS codes 336611 Ship Building and Repairing 511210 Software Publishers	$273,000,757	0.2%	Rank history: #62 in FY2021, #35 in FY2022, #46 in FY2023 and not on the FY2025 list; down 1 since FY2023.
48	Austal Limited Through Austal Usa, LLC Top NAICS codes 336611 Ship Building and Repairing 811219 Other Electronic and Precision Equipment Repair and Maintenance	$257,621,760	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
49	Elbit Systems Ltd 5 awardees, including Elbit Systems of America - Night Vision LLC, Sparton Deleon Springs, LLC and Elbitamerica, Inc. Top NAICS codes 333310 Commercial and Service Industry Machinery Manufacturing 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing	$252,213,464	0.2%	Rank history: not on the FY2021 list, #80 in FY2022, not on the FY2023 list and not on the FY2025 list; up 83 since FY2023.
50	The Pennsylvania State University 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)	$243,809,430	0.2%	Rank history: #54 in FY2021, #51 in FY2022, #49 in FY2023 and #54 in FY2025; down 1 since FY2023.
51	ManTech International Corporation 8 awardees, including Mantech Advanced Systems International, Inc., Imia, LLC and Standard Aero (San Antonio) Inc. Top NAICS codes 541330 Engineering Services 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 336611 Ship Building and Repairing	$242,502,011	0.2%	Rank history: #61 in FY2021, #50 in FY2022, #59 in FY2023 and #52 in FY2025; up 8 since FY2023.
52	International Business Machines Corporation 2 awardees, including Enterprise Electronics Corp Top NAICS codes 541330 Engineering Services 541512 Computer Systems Design Services 334111 Electronic Computer Manufacturing	$239,538,417	0.2%	Rank history: #68 in FY2021, #66 in FY2022, #62 in FY2023 and #65 in FY2025; up 10 since FY2023.
53	Core Tech-Hdcc-Kajima LLC Top NAICS codes 236220 Commercial and Institutional Building Construction 236116 New Multifamily Housing Construction (except For-Sale Builders)	$234,205,456	0.2%	Rank history: #17 in FY2021, not on the FY2022 list, #56 in FY2023 and #35 in FY2025; up 3 since FY2023.
54	Honeywell International Inc. 22 awardees, including Honeywell Federal Manufacturing & Technologies, LLC, National Technology & Engineering Solutions of Sandia, LLC and Honeywell Building Solutions SES Corp Top NAICS codes 561210 Facilities Support Services 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing 541330 Engineering Services	$231,970,309	0.2%	Rank history: #74 in FY2021, #57 in FY2022, #26 in FY2023 and #19 in FY2025; down 28 since FY2023.
55	Amentum Holdings, Inc. 7 awardees, including Amentum Services, Inc., Syncom Space Services LLC and PAE Government Services, Inc. Top NAICS codes 336611 Ship Building and Repairing 488190 Other Support Activities for Air Transportation 541330 Engineering Services	$231,865,747	0.2%	Rank history: not on the FY2021–FY2023 lists and #11 in FY2025; new.
56	Black Construction-Tutor Perini JV Top NAICS codes 236220 Commercial and Institutional Building Construction 236116 New Multifamily Housing Construction (except For-Sale Builders)	$227,980,376	0.2%	Rank history: #99 in FY2021, #44 in FY2022, not on the FY2023 list and #98 in FY2025; up 122 since FY2023.
57	B.l. Harbert Holdings, L.L.C. Through BL Harbert International LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$225,096,683	0.1%	Rank history: not on the FY2021–FY2023 lists and #79 in FY2025; up 55 since FY2023.
58	Rolls-Royce Solutions America Inc. 5 awardees, including Rolls-Royce Corporation, Rolls-Royce Marine North America Inc. and Rolls-Royce Canada Limited Top NAICS codes 336412 Aircraft Engine and Engine Parts Manufacturing 336611 Ship Building and Repairing 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing	$213,866,413	0.1%	Rank history: not on the FY2021–FY2023 lists and #25 in FY2025; new.
59	Carahsoft Technology Corp Top NAICS codes 511210 Software Publishers 541519 Other Computer Related Services 513210 Software Publishers	$212,629,960	0.1%	Rank history: #82 in FY2021, #73 in FY2022, #93 in FY2023 and #55 in FY2025; up 34 since FY2023.
60	Defense Systems and Solutions Top NAICS codes 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing	$210,244,216	0.1%	Rank history: not on the FY2021–FY2023 lists and #75 in FY2025; up 124 since FY2023.
61	Pacific Rim Constructors Inc. Top NAICS codes 236116 New Multifamily Housing Construction (except For-Sale Builders) 236220 Commercial and Institutional Building Construction	$208,310,701	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 93 since FY2023.
62	The Lane Construction Corporation Top NAICS codes 237310 Highway, Street, and Bridge Construction	$207,848,992	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
63	General Dynamics Mission Systems, Inc. Top NAICS codes 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 541330 Engineering Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$207,039,746	0.1%	Rank history: #49 in FY2021, #56 in FY2022, #77 in FY2023 and not on the FY2025 list; up 14 since FY2023.
64	L3HARRIS Aviation Products Inc 28 awardees, including L3Harris Technologies, Inc., L3 Technologies, Inc. and Fisica Applied Technologies, Inc. Top NAICS codes 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing 334290 Other Communications Equipment Manufacturing	$186,500,291	0.1%	Rank history: not on the FY2021–FY2022 lists, #88 in FY2023 and not on the FY2025 list; up 24 since FY2023.
65	WPP PLC 2 awardees, including Wunderman Thompson LLC and Young & Rubicam LLC Top NAICS codes 541810 Advertising Agencies	$186,312,921	0.1%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2023 and not on the FY2025 list; up 21 since FY2023.
66	Systems Planning and Analysis, Inc. Top NAICS codes 541330 Engineering Services 541611 Administrative Management and General Management Consulting Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$184,117,878	0.1%	Rank history: not on the FY2021–FY2023 lists and #63 in FY2025; up 49 since FY2023.
67	Rolls-Royce Military Aero Engines Ltd 6 awardees, including Rolls-Royce Corporation, Rolls-Royce Marine North America Inc. and Rolls-Royce Solutions America Inc. Top NAICS codes 336412 Aircraft Engine and Engine Parts Manufacturing 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing	$183,620,611	0.1%	Rank history: #24 in FY2021, #22 in FY2022, #28 in FY2023 and not on the FY2025 list; down 39 since FY2023.
68	Clark Construction Group LLC 3 awardees, including Clark Construction Group - California, LP and Clark Construction LLC Top NAICS codes 236220 Commercial and Institutional Building Construction 237990 Other Heavy and Civil Engineering Construction	$183,265,625	0.1%	Rank history: #80 in FY2021, #69 in FY2022, not on the FY2023 list and not on the FY2025 list; up 83 since FY2023.
69	Canadian Commercial Corporation Top NAICS codes 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing 333923 Overhead Traveling Crane, Hoist, and Monorail System Manufacturing	$176,453,882	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
70	Ocean Shipholdings, Inc. 2 awardees, including Ocean Ships, Inc. Top NAICS codes 483111 Deep Sea Freight Transportation	$174,912,293	0.1%	Rank history: not on the FY2021 list, #59 in FY2022, #52 in FY2023 and #56 in FY2025; down 18 since FY2023.
71	Jacobs Government Services Company 15 awardees, including Jacobs / B&V, A Joint Venture (Federal Services), Amentum Technology, Inc. and Ch2M Hill Constructors, Inc. Top NAICS codes 541330 Engineering Services 541310 Architectural Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$172,530,198	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
72	Hensel Phelps Construction Co 3 awardees, including Hensel Phelps - Shimizu JV Top NAICS codes 236220 Commercial and Institutional Building Construction	$164,385,658	0.1%	Rank history: #46 in FY2021, #46 in FY2022, #87 in FY2023 and #100 in FY2025; up 15 since FY2023.
73	Vigor Industrial LLC Through Vigor Marine LLC Top NAICS codes 336611 Ship Building and Repairing	$162,805,412	0.1%	Rank history: not on the FY2021–FY2023 lists and #37 in FY2025; new.
74	Caci Technologies LLC 5 awardees, including Caci, Inc. - Federal, Caci Enterprise Solutions, LLC and Caci Nss, LLC Top NAICS codes 541330 Engineering Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541511 Custom Computer Programming Services	$161,445,181	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
75	Parsons Corporation 10 awardees, including Parsons Government Services Inc., Space Ground System Solutions, Inc. and Blackhorse, A Parsons LLC Top NAICS codes 541330 Engineering Services 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)	$158,776,748	0.1%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2023 and not on the FY2025 list; down 6 since FY2023.
76	DLT Solutions, LLC Top NAICS codes 541519 Other Computer Related Services 513210 Software Publishers 511210 Software Publishers	$156,543,475	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
77	Precise Systems, Inc. Top NAICS codes 541330 Engineering Services 541511 Custom Computer Programming Services	$152,021,986	0.1%	Rank history: #98 in FY2021, #86 in FY2022, #83 in FY2023 and #77 in FY2025; up 6 since FY2023.
78	Microsoft Corporation Top NAICS codes 541512 Computer Systems Design Services 541511 Custom Computer Programming Services 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services	$149,719,541	0.1%	Rank history: #90 in FY2021, #68 in FY2022, #82 in FY2023 and not on the FY2025 list; up 4 since FY2023.
79	Fidelity Technologies Corporation Top NAICS codes 541330 Engineering Services	$146,160,460	0.1%	Rank history: not on the FY2021–FY2023 lists and #84 in FY2025; up 42 since FY2023.
80	Absher Construction Co Top NAICS codes 236220 Commercial and Institutional Building Construction	$145,267,008	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 413 since FY2023.
81	Hensel Phelps - Shimizu JV 3 awardees, including Hensel Phelps Construction Co Top NAICS codes 236220 Commercial and Institutional Building Construction	$145,167,900	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 84 since FY2023.
82	Tote Services, LLC Top NAICS codes 483111 Deep Sea Freight Transportation	$135,161,738	0.1%	Rank history: not on the FY2021–FY2023 lists and #74 in FY2025; new.
83	Teledyne Technologies Incorporated 24 awardees, including Teledyne Brown Engineering, Inc., Teledyne Flir Defense, LLC and Teledyne Instruments Inc. Top NAICS codes 336611 Ship Building and Repairing 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing	$135,104,818	0.1%	Rank history: #67 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; up 78 since FY2023.
84	American Systems Corporation Top NAICS codes 541330 Engineering Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 332510 Hardware Manufacturing	$134,876,732	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 46 since FY2023.
85	Management Services Group, Inc. Top NAICS codes 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334290 Other Communications Equipment Manufacturing 334111 Electronic Computer Manufacturing	$132,012,518	0.1%	Rank history: not on the FY2021 list, #85 in FY2022, not on the FY2023 list and not on the FY2025 list; up 38 since FY2023.
86	Nova Nacap A Joint Venture Top NAICS codes 237310 Highway, Street, and Bridge Construction 237120 Oil and Gas Pipeline and Related Structures Construction	$131,230,452	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
87	Seacorp, LLC 2 awardees Top NAICS codes 541330 Engineering Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing	$131,109,563	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 39 since FY2023.
88	Advanced Computer Concepts, Inc. Top NAICS codes 541519 Other Computer Related Services 334419 Other Electronic Component Manufacturing 334111 Electronic Computer Manufacturing	$128,274,624	0.1%	Rank history: not on the FY2021–FY2022 lists, #89 in FY2023 and #96 in FY2025; up 1 since FY2023.
89	Schuyler Line Navigation Company LLC Top NAICS codes 483111 Deep Sea Freight Transportation 221210 Natural Gas Distribution	$127,865,598	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
90	General Atomic Technologies Corporation 4 awardees, including General Atomics Aeronautical Systems, Inc. and General Atomics Top NAICS codes 336411 Aircraft Manufacturing 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$127,249,770	0.1%	Rank history: #43 in FY2021, #29 in FY2022, #20 in FY2023 and not on the FY2025 list; down 70 since FY2023.
91	Epsilon Systems Solutions Inc. 3 awardees Top NAICS codes 336611 Ship Building and Repairing 541330 Engineering Services 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing	$126,510,949	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 25 since FY2023.
92	Gryphon Technologies L.C. 2 awardees, including American Pacific Corporation Top NAICS codes 541330 Engineering Services 325180 Other Basic Inorganic Chemical Manufacturing 325920 Explosives Manufacturing	$123,780,420	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
93	Inmarsat Government, Inc. Top NAICS codes 517410 Satellite Telecommunications 541519 Other Computer Related Services	$123,039,669	0.1%	Rank history: not on the FY2021–FY2023 lists and #91 in FY2025; new.
94	U.S. Marine Management LLC Top NAICS codes 483111 Deep Sea Freight Transportation	$122,987,971	0.1%	Rank history: not on the FY2021–FY2023 lists and #71 in FY2025; new.
95	Caddell-Nan A Joint Venture Top NAICS codes 236220 Commercial and Institutional Building Construction 236116 New Multifamily Housing Construction (except For-Sale Builders) 236210 Industrial Building Construction	$122,802,549	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 109 since FY2023.
96	Noblis MSD LLC 2 awardees, including Noblis, Inc. Top NAICS codes 541330 Engineering Services 336611 Ship Building and Repairing 541990 All Other Professional, Scientific, and Technical Services	$122,769,733	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
97	Diazyme Laboratories Inc. 2 awardees, including General Atomics Top NAICS codes 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing 541330 Engineering Services 336611 Ship Building and Repairing	$122,042,709	0.1%	Rank history: not on the FY2021–FY2023 lists and #47 in FY2025; new.
98	Sierra Nevada Company, LLC 2 awardees Top NAICS codes 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 511210 Software Publishers 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing	$118,211,523	0.1%	Rank history: not on the FY2021–FY2023 lists and #76 in FY2025; new.
99	Granite-Obayashi 2, A Joint Venture Top NAICS codes 236220 Commercial and Institutional Building Construction	$118,152,301	0.1%	Rank history: not on the FY2021–FY2022 lists, #100 in FY2023 and #69 in FY2025; up 1 since FY2023.
100	Resource Management Concepts, Inc. Top NAICS codes 541330 Engineering Services 541513 Computer Facilities Management Services	$118,150,090	0.1%	Rank history: not on the FY2021–FY2023 lists and #81 in FY2025; up 29 since FY2023.

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 $150 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