Top 100 Department of the Army Contractors, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Pfizer Inc. Top NAICS codes 325414 Biological Product (except Diagnostic) Manufacturing	$23,131,122,560	16.4%	Rank history: #1 in FY2022, #11 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
2	Lockheed Martin Corporation 23 awardees, including Sikorsky Aircraft Corporation, Lockheed Martin Sippican, Inc. and Lockheed Martin Global, Inc. Top NAICS codes 336414 Guided Missile and Space Vehicle Manufacturing 336411 Aircraft Manufacturing 541330 Engineering Services	$7,580,139,544	5.4%	Rank history: #2 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; down 1 since FY2020.
3	Modernatx Inc. 2 awardees Top NAICS codes 325412 Pharmaceutical Preparation Manufacturing	$6,920,591,679	4.9%	Rank history: #9 in FY2022 and not on the FY2023–FY2025 lists; up 6 since FY2020.
4	Regeneron Pharmaceuticals Inc. Top NAICS codes 325414 Biological Product (except Diagnostic) Manufacturing	$5,564,999,936	3.9%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
5	General Dynamics Corporation 39 awardees, including General Dynamics Land Systems Inc., General Dynamics Mission Systems, Inc. and General Dynamics Information Technology, Inc. Top NAICS codes 336992 Military Armored Vehicle, Tank, and Tank Component Manufacturing 332993 Ammunition (except Small Arms) Manufacturing 334111 Electronic Computer Manufacturing	$5,143,263,287	3.7%	Rank history: #3 in FY2022, #3 in FY2023, #3 in FY2024 and #3 in FY2025; down 3 since FY2020.
6	RTX Corporation 58 awardees, including Raytheon Company, Raytheon / Lockheed Martin Javelin JV and Rockwell Collins, Inc. Top NAICS codes 336414 Guided Missile and Space Vehicle Manufacturing 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 541330 Engineering Services	$3,992,768,610	2.8%	Rank history: #4 in FY2022, #2 in FY2023, #2 in FY2024 and #2 in FY2025; unchanged since FY2020.
7	Kbr, Inc. 8 awardees, including KBR Services, LLC, KBR Wyle Services, LLC and Kord Technologies, LLC Top NAICS codes 561210 Facilities Support Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541330 Engineering Services	$2,830,228,471	2.0%	Rank history: #5 in FY2022, #51 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2020.
8	Oshkosh Corp 3 awardees, including Oshkosh Defense LLC, Pratt & Miller Engineering & Fabrication, LLC and JLG Industries, Inc. Top NAICS codes 336992 Military Armored Vehicle, Tank, and Tank Component Manufacturing 336212 Truck Trailer Manufacturing 333618 Other Engine Equipment Manufacturing	$2,228,151,594	1.6%	Rank history: #19 in FY2022, #9 in FY2023, #9 in FY2024 and #11 in FY2025; up 4 since FY2020.
9	Northrop Grumman Corporation 35 awardees, including Alliant Techsystems Operations LLC, Northrop Grumman Systems Corporation and Vinnell Arabia, LLC Top NAICS codes 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 336414 Guided Missile and Space Vehicle Manufacturing 332993 Ammunition (except Small Arms) Manufacturing	$2,168,235,888	1.5%	Rank history: #7 in FY2022, #8 in FY2023, #5 in FY2024 and #6 in FY2025; down 1 since FY2020.
10	ELI Lilly and Company Top NAICS codes 325412 Pharmaceutical Preparation Manufacturing	$1,913,730,016	1.4%	Rank history: #6 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
11	Vectrus Systems Corporation 4 awardees, including V2X Systems LLC, Vectrus Federal Services GMBH and Advantor Systems II LLC Top NAICS codes 561210 Facilities Support Services 811213 Communication Equipment Repair and Maintenance 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$1,830,625,806	1.3%	Rank history: #14 in FY2022, #6 in FY2023, #64 in FY2024 and not on the FY2025 list; up 5 since FY2020.
12	The Boeing Company 24 awardees, including Boeing Aerospace Operations, Inc. and Tapestry Solutions, Inc. Top NAICS codes 336411 Aircraft Manufacturing 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing 336412 Aircraft Engine and Engine Parts Manufacturing	$1,784,623,514	1.3%	Rank history: #16 in FY2022, #5 in FY2023, #7 in FY2024 and #19 in FY2025; down 8 since FY2020.
13	L3Harris Technologies, Inc. 41 awardees, including L3Harris Global Communications, Inc., L3Harris Fuzing and Ordnance Systems, Inc. and L3 Technologies, Inc. Top NAICS codes 334290 Other Communications Equipment Manufacturing 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing 332993 Ammunition (except Small Arms) Manufacturing	$1,603,648,289	1.1%	Rank history: #8 in FY2022, #7 in FY2023, #6 in FY2024 and #5 in FY2025; down 3 since FY2020.
14	Leidos Holdings, Inc. 16 awardees, including Leidos, Inc., Dynetics, Inc. and Aranea Solutions Inc. Top NAICS codes 488190 Other Support Activities for Air Transportation 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541330 Engineering Services	$1,433,489,657	1.0%	Rank history: #28 in FY2022, #24 in FY2023, #14 in FY2024 and #7 in FY2025; up 1 since FY2020.
15	Amentum Services, Inc. 5 awardees, including Dyncorp International LLC Top NAICS codes 561210 Facilities Support Services 488190 Other Support Activities for Air Transportation 811111 General Automotive Repair	$1,234,363,271	0.9%	Rank history: #15 in FY2022, #12 in FY2023, #11 in FY2024 and not on the FY2025 list; up 126 since FY2020.
16	Merck & Co. Inc. 2 awardees, including Merck Sharp & Dohme LLC and Biomark LLC Top NAICS codes 325412 Pharmaceutical Preparation Manufacturing 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing	$1,208,225,663	0.9%	Rank history: #20 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
17	BAE Systems PLC 20 awardees, including BAE Systems Ordnance Systems Inc., BAE Systems Information and Electronic Systems Integration Inc. and BAE Systems Land and Armaments L.P. Top NAICS codes 561210 Facilities Support Services 336992 Military Armored Vehicle, Tank, and Tank Component Manufacturing 334419 Other Electronic Component Manufacturing	$1,081,318,598	0.8%	Rank history: #12 in FY2022, #4 in FY2023, #4 in FY2024 and #4 in FY2025; down 14 since FY2020.
18	Science Applications International Corporation 9 awardees, including Asrc Federal Facilities Logistics, LLC and Halfaker and Associates, LLC Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541512 Computer Systems Design Services 541611 Administrative Management and General Management Consulting Services	$934,063,055	0.7%	Rank history: #18 in FY2022, #19 in FY2023, #21 in FY2024 and #27 in FY2025; up 3 since FY2020.
19	Booz Allen Hamilton Holding Corporation 3 awardees, including Booz Allen Hamilton Inc. Top NAICS codes 541330 Engineering Services 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)	$872,404,172	0.6%	Rank history: #22 in FY2022, #21 in FY2023, #20 in FY2024 and #29 in FY2025; up 1 since FY2020.
20	CACI International Inc. 11 awardees, including Caci, Inc. - Federal, Caci-Iss, LLC and Caci Technologies, LLC Top NAICS codes 541511 Custom Computer Programming 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)	$778,853,128	0.6%	Rank history: #21 in FY2022, #17 in FY2023, #24 in FY2024 and #17 in FY2025; up 5 since FY2020.
21	General Atomic Technologies Corporation 5 awardees, including General Atomics Aeronautical Systems, Inc. and General Atomics Top NAICS codes 336411 Aircraft Manufacturing 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)	$764,915,782	0.5%	Rank history: #23 in FY2022, #28 in FY2023, #25 in FY2024 and not on the FY2025 list; down 3 since FY2020.
22	Bechtel Corp 3 awardees, including Bechtel Parsons Blue Grass, A Joint Venture and Bechtel National, Inc. Top NAICS codes 562211 Hazardous Waste Treatment and Disposal	$654,183,898	0.5%	Rank history: #24 in FY2022, #23 in FY2023, #33 in FY2024 and #76 in FY2025; up 14 since FY2020.
23	Hensel Phelps Construction Co 5 awardees Top NAICS codes 236220 Commercial and Institutional Building Construction 236210 Industrial Building Construction	$627,566,208	0.4%	Rank history: #77 in FY2022, #71 in FY2023, not on the FY2024 list and #93 in FY2025; up 5 since FY2020.
24	General Electric Company 24 awardees, including GE Renewables US LLC, Johnson Technology Systems Inc. and GE Aviation Systems LLC Top NAICS codes 336412 Aircraft Engine and Engine Parts Manufacturing 541330 Engineering Services 237990 Other Heavy and Civil Engineering Construction	$613,465,060	0.4%	Rank history: #33 in FY2022, #25 in FY2023, #45 in FY2024 and #15 in FY2025; down 5 since FY2020.
25	Tcom, L.P. Top NAICS codes 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 541330 Engineering Services	$561,339,489	0.4%	Rank history: #34 in FY2022, not on the FY2023–FY2024 lists and #20 in FY2025; up 49 since FY2020.
26	Leonardo S.p.A. 11 awardees, including DRS Network & Imaging Systems LLC, DRS Sustainment Systems, Inc. and Global Enterprise Solutions, Inc. Top NAICS codes 334111 Electronic Computer Manufacturing 333314 Optical Instrument and Lens Manufacturing 541330 Engineering Services	$511,199,178	0.4%	Rank history: #30 in FY2022, #16 in FY2023, #19 in FY2024 and #21 in FY2025; down 4 since FY2020.
27	Great Lakes Dredge & Dock Corporation 2 awardees, including Forgen LLC Top NAICS codes 237990 Other Heavy and Civil Engineering Construction	$510,888,237	0.4%	Rank history: #49 in FY2022, #36 in FY2023, #29 in FY2024 and #56 in FY2025; up 7 since FY2020.
28	Dell Federal Systems L.P. 5 awardees, including Dell Marketing L.P., Pivotal Software, Inc. and EMC Corporation Top NAICS codes 541519 Other Computer Related Services 334111 Electronic Computer Manufacturing 511210 Software Publishers	$504,908,274	0.4%	Rank history: #39 in FY2022, #31 in FY2023, #68 in FY2024 and not on the FY2025 list; up 2 since FY2020.
29	Astrazeneca PLC Through Astrazeneca Pharmaceuticals LP Top NAICS codes 325412 Pharmaceutical Preparation Manufacturing	$502,078,908	0.4%	Rank history: #32 in FY2022 and not on the FY2023–FY2025 lists; up 440 since FY2020.
30	M1 Support Services, L.P. Top NAICS codes 488190 Other Support Activities for Air Transportation	$500,608,345	0.4%	Rank history: #35 in FY2022, #34 in FY2023, #31 in FY2024 and #40 in FY2025; down 1 since FY2020.
31	Textron Inc. 8 awardees, including Bell Textron Inc., Textron Systems Corporation and Textron Aviation Inc. 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)	$455,930,779	0.3%	Rank history: #42 in FY2022, #20 in FY2023, #18 in FY2024 and #16 in FY2025; up 9 since FY2020.
32	Government of Canada 2 awardees, including Canadian Commercial Corporation and National Research Council Canada Top NAICS codes 332993 Ammunition (except Small Arms) Manufacturing 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing	$399,433,799	0.3%	Rank history: #37 in FY2022, #15 in FY2023 and not on the FY2024–FY2025 lists; up 9 since FY2020.
33	Rolls-Royce Military Aero Engines Ltd 4 awardees, including Rolls-Royce Solutions America Inc., Syncrolift Inc. and Rolls-Royce Marine North America Inc. Top NAICS codes 336390 Other Motor Vehicle Parts Manufacturing 333923 Overhead Traveling Crane, Hoist, and Monorail System Manufacturing 333519 Rolling Mill and Other Metalworking Machinery Manufacturing	$388,556,929	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
34	Torch Technologies Inc. Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541330 Engineering Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$383,458,790	0.3%	Rank history: #46 in FY2022, #52 in FY2023, #51 in FY2024 and #50 in FY2025; up 20 since FY2020.
35	Honeywell International Inc. 23 awardees, including Honeywell Building Solutions SES Corp Top NAICS codes 336992 Military Armored Vehicle, Tank, and Tank Component Manufacturing 336412 Aircraft Engine and Engine Parts Manufacturing 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing	$374,866,646	0.3%	Rank history: #25 in FY2022, #22 in FY2023, #13 in FY2024 and #30 in FY2025; up 18 since FY2020.
36	Remington Arms Company LLC 2 awardees, including Dyncorp International LLC Top NAICS codes 488190 Other Support Activities for Air Transportation 561210 Facilities Support Services 541611 Administrative Management and General Management Consulting Services	$372,940,854	0.3%	Rank history: not on the FY2022–FY2025 lists; down 25 since FY2020.
37	Defense Systems and Solutions Top NAICS codes 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing 336992 Military Armored Vehicle, Tank, and Tank Component Manufacturing	$368,041,124	0.3%	Rank history: #52 in FY2022, #33 in FY2023, #30 in FY2024 and #33 in FY2025; down 2 since FY2020.
38	Am General LLC 5 awardees, including Crenlo Cab Products, LLC Top NAICS codes 336992 Military Armored Vehicle, Tank, and Tank Component Manufacturing 541330 Engineering Services 333618 Other Engine Equipment Manufacturing	$359,123,387	0.3%	Rank history: #26 in FY2022, #14 in FY2023, #15 in FY2024 and #25 in FY2025; new, not ranked in FY2020.
39	Omnicom Group Inc. Through DDB Chicago Inc. Top NAICS codes 541810 Advertising Agencies	$348,193,207	0.2%	Rank history: #48 in FY2022, #30 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2020.
40	Parsons Corporation 13 awardees, including Parsons Government Services Inc., Parsons-Versar Joint Venture and Ptsi Managed Services Inc. Top NAICS codes 236210 Industrial Building Construction 541330 Engineering Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$338,058,981	0.2%	Rank history: #73 in FY2022, #46 in FY2023, #75 in FY2024 and #51 in FY2025; up 15 since FY2020.
41	Olin Winchester LLC Top NAICS codes 332992 Small Arms Ammunition Manufacturing	$337,617,486	0.2%	Rank history: not on the FY2022–FY2025 lists; up 19 since FY2020.
42	Jacobs Engineering Group Inc. 29 awardees, including Amentum Technology, Inc., Ch2M Hill Constructors, Inc. and Jacobs Government Services Co Top NAICS codes 541330 Engineering Services 611430 Professional and Management Development Training 562910 Remediation Services	$300,779,248	0.2%	Rank history: #54 in FY2022, #42 in FY2023 and not on the FY2024–FY2025 lists; up 16 since FY2020.
43	Glaxosmithkline LLC Top NAICS codes 325412 Pharmaceutical Preparation Manufacturing	$284,070,329	0.2%	Rank history: #11 in FY2022 and not on the FY2023–FY2025 lists; up 1 since FY2020.
44	Battelle Memorial Institute 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) 541330 Engineering Services	$277,203,359	0.2%	Rank history: not on the FY2022–FY2025 lists; up 141 since FY2020.
45	Clinical Enterprise, LLC	$274,862,880	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
46	The Mitre Corporation Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541618 Other Management Consulting Services	$264,447,839	0.2%	Rank history: #44 in FY2022, #61 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2020.
47	The Walsh Group 4 awardees, including Archer Western Federal JV, Walsh Construction Company and Walsh Construction Company II, LLC Top NAICS codes 236220 Commercial and Institutional Building Construction 237130 Power and Communication Line and Related Structures Construction 237990 Other Heavy and Civil Engineering Construction	$264,305,109	0.2%	Rank history: not on the FY2022 list, #93 in FY2023 and not on the FY2024–FY2025 lists; up 222 since FY2020.
48	AECOM 25 awardees, including AECOM Technical Services, Inc., Shimmick Construction Company, Inc. and AECOM International Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction 541330 Engineering Services 237990 Other Heavy and Civil Engineering Construction	$257,757,323	0.2%	Rank history: #74 in FY2022, #78 in FY2023 and not on the FY2024–FY2025 lists; down 22 since FY2020.
49	National Presto Industries 2 awardees, including Amtec Corporation and Spectra Technologies LLC Top NAICS codes 332993 Ammunition (except Small Arms) Manufacturing	$252,561,565	0.2%	Rank history: #95 in FY2022, #58 in FY2023 and not on the FY2024–FY2025 lists; up 168 since FY2020.
50	Valero Energy Corporation Through Valero Marketing and Supply Co Top NAICS codes 324110 Petroleum Refineries	$246,787,602	0.2%	Rank history: #27 in FY2022, #35 in FY2023, #48 in FY2024 and #80 in FY2025; up 47 since FY2020.
51	Mantech International Corporation 2 awardees, including Mantech Advanced Systems International, Inc. and Mantech SRS Technologies, Inc. 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)	$243,234,756	0.2%	Rank history: #59 in FY2022, #56 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.
52	Medico Industries Inc. 2 awardees, including General Dynamics OTS (Wilkes Barre), LLC and Action Lift Inc. Top NAICS codes 332993 Ammunition (except Small Arms) Manufacturing 561210 Facilities Support Services 333924 Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing	$241,106,892	0.2%	Rank history: not on the FY2022–FY2025 lists; up 48 since FY2020.
53	Maersk Inc. 2 awardees, including Maersk Line, Limited and Farrell Lines Incorporated Top NAICS codes 483111 Deep Sea Freight Transportation 488510 Freight Transportation Arrangement 561210 Facilities Support Services	$233,035,274	0.2%	Rank history: #69 in FY2022 and not on the FY2023–FY2025 lists; down 2 since FY2020.
54	Thales 2 awardees, including Thales Defense & Security Inc. Top NAICS codes 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing 335999 All Other Miscellaneous Electrical Equipment and Component Manufacturing	$224,908,725	0.2%	Rank history: #57 in FY2022 and not on the FY2023–FY2025 lists; up 317 since FY2020.
55	Airbus Americas Inc. 3 awardees, including Airbus US Space & Defense Inc., Airbus Helicopters, Inc. and Airbus DS Government Solutions Inc. Top NAICS codes 488190 Other Support Activities for Air Transportation 336411 Aircraft Manufacturing 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing	$224,877,912	0.2%	Rank history: #60 in FY2022, #68 in FY2023 and not on the FY2024–FY2025 lists; down 16 since FY2020.
56	Webuild S.p.A. Through The Lane Construction Corporation Top NAICS codes 237990 Other Heavy and Civil Engineering Construction	$219,026,187	0.2%	Rank history: #41 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
57	Nova Global Supply and Services LLC 3 awardees, including Valiant Global Defense Services Inc. and Valiant Government Services LLC Top NAICS codes 541330 Engineering Services 611699 All Other Miscellaneous Schools and Instruction 561210 Facilities Support Services	$217,367,217	0.2%	Rank history: #80 in FY2022, #81 in FY2023 and not on the FY2024–FY2025 lists; up 14 since FY2020.
58	Fluor Corporation 4 awardees, including Fluor Intercontinental, Inc., Rock Island Integrated Services and Fluor Intercontinental Germany GMBH Top NAICS codes 561210 Facilities Support Services 236210 Industrial Building Construction 811118 Other Automotive Mechanical and Electrical Repair and Maintenance	$214,176,403	0.2%	Rank history: not on the FY2022–FY2025 lists; down 31 since FY2020.
59	Perspecta Inc. 7 awardees, including Peraton Technology Services Inc., Dhpc Technologies, Inc. and Peraton Enterprise Solutions LLC Top NAICS codes 541330 Engineering Services 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541519 Other Computer Related Services	$212,452,476	0.2%	Rank history: not on the FY2022–FY2025 lists; up 20 since FY2020.
60	LOC Performance Products LLC Top NAICS codes 336992 Military Armored Vehicle, Tank, and Tank Component Manufacturing 336414 Guided Missile and Space Vehicle Manufacturing	$204,077,622	0.1%	Rank history: #93 in FY2022, not on the FY2023 list, #81 in FY2024 and #46 in FY2025; up 32 since FY2020.
61	Medical Technology Enterprise Consortium	$198,509,078	0.1%	Rank history: not on the FY2022–FY2025 lists; up 34 since FY2020.
62	Qinetiq Group PLC 4 awardees, including Qinetiq Inc., Foster-Miller, Inc. and Qtec Solutions, Inc. Top NAICS codes 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 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$198,048,311	0.1%	Rank history: #76 in FY2022, #87 in FY2023 and not on the FY2024–FY2025 lists; up 47 since FY2020.
63	BAE Systems Land & Armaments L.P. 15 awardees, including BAE Systems Ordnance Systems Inc., BAE Systems Information and Electronic Systems Integration Inc. and BAE Systems Technology Solutions & Services Inc. Top NAICS codes 336211 Motor Vehicle Body Manufacturing 541330 Engineering Services 334419 Other Electronic Component Manufacturing	$197,099,587	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
64	World Wide Technology Holding Co. Inc. Through World Wide Technology LLC Top NAICS codes 334111 Electronic Computer Manufacturing 541519 Other Computer Related Services 511210 Software Publishers	$196,818,242	0.1%	Rank history: #62 in FY2022 and not on the FY2023–FY2025 lists; up 12 since FY2020.
65	Dobco Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction 237110 Water and Sewer Line and Related Structures Construction	$195,830,123	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
66	Peter Kiewit Sons', Inc. 7 awardees, including Kiewit Infrastructure South Co, Kiewit Infrastructure Co. and Kiewit Infrastructure West Co. Top NAICS codes 237990 Other Heavy and Civil Engineering Construction 237310 Highway, Street, and Bridge Construction 238210 Electrical Contractors and Other Wiring Installation Contractors	$194,503,414	0.1%	Rank history: not on the FY2022 list, #50 in FY2023, #28 in FY2024 and #26 in FY2025; up 55 since FY2020.
67	DCS Corporation 3 awardees Top NAICS codes 541330 Engineering Services 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)	$194,348,168	0.1%	Rank history: #81 in FY2022, #84 in FY2023, #86 in FY2024 and #73 in FY2025; up 10 since FY2020.
68	International Business Machines Corporation 5 awardees Top NAICS codes 541519 Other Computer Related Services 541512 Computer Systems Design Services 517110 Wired Telecommunications Carriers	$193,823,394	0.1%	Rank history: not on the FY2022–FY2025 lists; up 14 since FY2020.
69	Intuitive Research and Technology Corporation 2 awardees Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541330 Engineering Services 336419 Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing	$192,909,517	0.1%	Rank history: not on the FY2022 list, #70 in FY2023, not on the FY2024 list and #89 in FY2025; up 20 since FY2020.
70	Aaski Technology Inc. 3 awardees, including Mag DS Corp Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541330 Engineering Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$192,817,051	0.1%	Rank history: #50 in FY2022, #76 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2020.
71	M.c. Dean, Inc. Top NAICS codes 238210 Electrical Contractors and Other Wiring Installation Contractors 541512 Computer Systems Design Services 561621 Security Systems Services (except Locksmiths)	$190,017,271	0.1%	Rank history: not on the FY2022–FY2025 lists; up 166 since FY2020.
72	Aitc-Five Domains Joint Venture,Llc Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$183,478,113	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
73	Nana Regional Corporation Inc 21 awardees, including Affigent, LLC, Akima Support Operations, LLC and Rivertech LLC Top NAICS codes 541519 Other Computer Related Services 561210 Facilities Support Services 334111 Electronic Computer Manufacturing	$183,458,490	0.1%	Rank history: #78 in FY2022 and not on the FY2023–FY2025 lists; down 5 since FY2020.
74	J Kokolakis Contracting Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction 333994 Industrial Process Furnace and Oven Manufacturing	$183,449,712	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
75	J & J Maintenance Inc. Top NAICS codes 561210 Facilities Support Services 561720 Janitorial Services 236220 Commercial and Institutional Building Construction	$182,672,403	0.1%	Rank history: #53 in FY2022, #85 in FY2023 and not on the FY2024–FY2025 lists; down 18 since FY2020.
76	Chemring Group PLC 5 awardees, including Chemring Sensors and Electronic Systems, Inc., Kilgore Flares Company LLC and Alloy Surfaces Co Inc. Top NAICS codes 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 325998 All Other Miscellaneous Chemical Product and Preparation Manufacturing 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$179,785,954	0.1%	Rank history: not on the FY2022–FY2025 lists; up 51 since FY2020.
77	UEI WWFNFCV65M13 Top NAICS codes 238990 All Other Specialty Trade Contractors 236115 New Single-Family Housing Construction (except For-Sale Builders) 238910 Site Preparation Contractors	$175,476,725	0.1%	Rank history: not on the FY2022–FY2025 lists; up 408 since FY2020.
78	American Ordnance LLC 2 awardees Top NAICS codes 332993 Ammunition (except Small Arms) Manufacturing 561210 Facilities Support Services	$173,610,455	0.1%	Rank history: not on the FY2022 list, #29 in FY2023, #59 in FY2024 and not on the FY2025 list; down 30 since FY2020.
79	Foreign Utility Consolidated Reporting Top NAICS codes 221122 Electric Power Distribution 926130 Regulation and Administration of Communications, Electric, Gas, and Other Utilities 221330 Steam and Air-Conditioning Supply	$170,066,374	0.1%	Rank history: #66 in FY2022, #72 in FY2023, #87 in FY2024 and #77 in FY2025; down 9 since FY2020.
80	Sierra Nevada Company, LLC 2 awardees, including Kutta Technologies, LLC Top NAICS codes 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing 511210 Software Publishers 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$168,570,799	0.1%	Rank history: #94 in FY2022 and not on the FY2023–FY2025 lists; down 8 since FY2020.
81	Thalle Construction Co Inc. Top NAICS codes 237990 Other Heavy and Civil Engineering Construction	$167,255,582	0.1%	Rank history: #63 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
82	Perkinelmer Inc. 5 awardees, including Revvity Health Sciences, Inc., Revvity Signals Software, Inc. and Perkinelmer Japan G.k. Top NAICS codes 334516 Analytical Laboratory Instrument Manufacturing 811219 Other Electronic and Precision Equipment Repair and Maintenance 511210 Software Publishers	$158,838,691	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
83	International Auto Logistics, LLC Top NAICS codes 488999 All Other Support Activities for Transportation	$157,496,011	0.1%	Rank history: not on the FY2022–FY2025 lists; up 2 since FY2020.
84	Radiance Technologies Inc. Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 336419 Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing	$155,824,275	0.1%	Rank history: not on the FY2022–FY2025 lists; up 98 since FY2020.
85	Cummins Inc. 11 awardees, including Cummins Power Generation Inc. Top NAICS codes 335312 Motor and Generator Manufacturing 333618 Other Engine Equipment Manufacturing 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance	$153,924,487	0.1%	Rank history: #92 in FY2022, #74 in FY2023, not on the FY2024 list and #58 in FY2025; down 16 since FY2020.
86	Flir Systems Inc. 9 awardees, including Teledyne Flir Unmanned Ground Systems, Inc., Teledyne Flir Defense, Inc. and Teledyne Flir Detection, Inc. Top NAICS codes 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 336411 Aircraft Manufacturing 333314 Optical Instrument and Lens Manufacturing	$152,630,743	0.1%	Rank history: not on the FY2022–FY2025 lists; down 6 since FY2020.
87	The Dutra Group Top NAICS codes 237990 Other Heavy and Civil Engineering Construction	$151,634,496	0.1%	Rank history: not on the FY2022 list, #69 in FY2023 and not on the FY2024–FY2025 lists; up 90 since FY2020.
88	DMD Group Inc. Through Intrepid LLC Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$150,158,462	0.1%	Rank history: #85 in FY2022, #92 in FY2023 and not on the FY2024–FY2025 lists; up 29 since FY2020.
89	Aptim Federal Services LLC 2 awardees, including High Desert Support Services, LLC Top NAICS codes 236220 Commercial and Institutional Building Construction 561210 Facilities Support Services 562910 Remediation Services	$149,470,524	0.1%	Rank history: #72 in FY2022 and not on the FY2023–FY2025 lists; up 17 since FY2020.
90	Sae Government Technologies	$141,352,715	0.1%	Rank history: not on the FY2022–FY2025 lists; up 29 since FY2020.
91	Cook Inlet Region Inc. 12 awardees, including North Wind Portage, Inc., North Wind Construction Services, LLC and Weldin Construction LLC Top NAICS codes 562910 Remediation Services 237990 Other Heavy and Civil Engineering Construction 236220 Commercial and Institutional Building Construction	$141,158,302	0.1%	Rank history: not on the FY2022–FY2025 lists; up 67 since FY2020.
92	Johnson Controls Security Solutions LLC 14 awardees, including Johnson Controls Building Automation Systems, LLC, Johnson Controls Government Systems, LLC and Johnson Controls, Inc. Top NAICS codes 541512 Computer Systems Design Services 541330 Engineering Services 561210 Facilities Support Services	$141,147,422	0.1%	Rank history: #67 in FY2022 and not on the FY2023–FY2025 lists; up 34 since FY2020.
93	Maloney-Odin JV Top NAICS codes 237990 Other Heavy and Civil Engineering Construction 236115 New Single-Family Housing Construction (except For-Sale Builders)	$134,682,668	0.1%	Rank history: not on the FY2022–FY2025 lists; up 123 since FY2020.
94	Georgia TECH Research Corp 2 awardees, including Georgia TECH Applied Research 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) 928110 National Security	$133,607,535	0.1%	Rank history: #71 in FY2022 and not on the FY2023–FY2025 lists; down 31 since FY2020.
95	Accenture Federal Services LLC 2 awardees, including ASM Research, LLC Top NAICS codes 541512 Computer Systems Design Services 511210 Software Publishers 541519 Other Computer Related Services	$129,354,906	0.1%	Rank history: #43 in FY2022 and not on the FY2023–FY2025 lists; up 15 since FY2020.
96	Zodiac, Inc. Through Zodiac-Poettker HBZ Joint Venture II, LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$129,008,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
97	Fleetcor Technologies Inc. Through Corporate Lodging Consultants, Inc. Top NAICS codes 561599 All Other Travel Arrangement and Reservation Services	$125,964,726	0.1%	Rank history: not on the FY2022–FY2025 lists; up 147 since FY2020.
98	Saab AB 5 awardees, including Saab Dynamics Aktiebolag, Saab, Inc. and Saab Aktiebolag Top NAICS codes 332993 Ammunition (except Small Arms) Manufacturing 332994 Small Arms, Ordnance, and Ordnance Accessories Manufacturing 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing	$124,801,877	0.1%	Rank history: #61 in FY2022 and not on the FY2023–FY2025 lists; down 37 since FY2020.
99	Logistics Management Institute 2 awardees, including The Tauri Group, Inc. Top NAICS codes 541330 Engineering Services 541611 Administrative Management and General Management Consulting Services	$122,729,341	0.1%	Rank history: not on the FY2022–FY2025 lists; up 13 since FY2020.
100	Allison Transmission Inc. Top NAICS codes 333613 Mechanical Power Transmission Equipment Manufacturing	$122,151,051	0.1%	Rank history: not on the FY2022–FY2025 lists; down 16 since FY2020.

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 $141 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 2021 ran Oct 1, 2020 – Sep 30, 2021. 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 FY2020. "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 FY2020 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.

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