Top 100 Contractors in NAICS 31-33: Manufacturing, FY2021

Name: Top 100 Contractors in NAICS 31-33: Manufacturing, FY2021
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2020 – Sep 30, 2021 Code page on GovTribe

The top 10 won 53% of FY2021 NAICS 31-33 contract dollars

Contract obligations: $254,597,099,598 Net of deobligations, by contracts coded NAICS 31-33 or a code under it
Contractors: 26,857 Parent companies with an obligation
Largest contractor: Lockheed Martin Corporation $33.7 billion, 12.3% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Lockheed Martin Corporation 60 awardees, including Sikorsky Aircraft Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$33,689,660,687	12.3%	Rank history: #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since FY2020.
2	Pfizer Inc. 4 awardees, including Meridian Medical Technologies, LLC and Greenstone LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) HHS (Department of Health and Human Services)	$23,135,570,432	8.4%	Rank history: #3 in FY2022, #14 in FY2023 and not on the FY2024–FY2025 lists; up 490 since FY2020.
3	The Boeing Company 49 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$21,109,355,846	7.7%	Rank history: #5 in FY2022, #3 in FY2023, #3 in FY2024 and #4 in FY2025; up 1 since FY2020.
4	RTX Corporation 115 awardees, including Raytheon Company and Rockwell Collins, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$15,553,213,061	5.7%	Rank history: #2 in FY2022, #2 in FY2023, #2 in FY2024 and #2 in FY2025; up 1 since FY2020.
5	General Dynamics Corporation 55 awardees, including Electric Boat Corporation, General Dynamics Land Systems Inc. and Bath Iron Works Corporation Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$12,976,289,711	4.7%	Rank history: #4 in FY2022, #4 in FY2023, #5 in FY2024 and #3 in FY2025; down 2 since FY2020.
6	Mckesson Corporation 10 awardees, including Mckesson Medical-Surgical Government Solutions LLC, Mckesson Plasma and Biologics LLC and Mckesson Medical-Surgical Inc. Top agencies VA (Department of Veterans Affairs) DLA (Defense Logistics Agency) HHS (Department of Health and Human Services)	$11,963,137,283	4.4%	Rank history: #6 in FY2022, #6 in FY2023, #6 in FY2024 and #5 in FY2025; up 1 since FY2020.
7	Northrop Grumman Corporation 84 awardees, including Northrop Grumman Systems Corporation and Alliant Techsystems Operations LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$8,559,596,110	3.1%	Rank history: #7 in FY2022, #5 in FY2023, #4 in FY2024 and #6 in FY2025; down 1 since FY2020.
8	Modernatx Inc. 2 awardees Top agencies Army (Department of the Army) HHS (Department of Health and Human Services)	$7,363,802,587	2.7%	Rank history: #14 in FY2022 and not on the FY2023–FY2025 lists; up 5 since FY2020.
9	Huntington Ingalls Industries, Inc. 7 awardees, including Huntington Ingalls Inc., HII Fleet Support Group LLC and HII San Diego Shipyard Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$5,673,922,369	2.1%	Rank history: #9 in FY2022, #7 in FY2023, #7 in FY2024 and #7 in FY2025; down 1 since FY2020.
10	Regeneron Pharmaceuticals Inc. Top agencies Army (Department of the Army) VA (Department of Veterans Affairs)	$5,565,148,165	2.0%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
11	L3Harris Technologies, Inc. 81 awardees, including L3Harris Technologies Integrated Systems L.P., L3Harris Global Communications, Inc. and L3 Technologies, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$4,581,006,925	1.7%	Rank history: #8 in FY2022, #9 in FY2023, #9 in FY2024 and #9 in FY2025; unchanged since FY2020.
12	General Electric Company 37 awardees, including GE Aviation Systems LLC and Unison Industries LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$2,892,579,151	1.1%	Rank history: #12 in FY2022, #10 in FY2023, #11 in FY2024 and #11 in FY2025; unchanged since FY2020.
13	BAE Systems PLC 40 awardees, including BAE Systems Land and Armaments L.P., BAE Systems Information and Electronic Systems Integration Inc. and BAE Systems Maritime Solutions Norfolk Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$2,533,525,320	0.9%	Rank history: #10 in FY2022, #8 in FY2023, #8 in FY2024 and #8 in FY2025; down 3 since FY2020.
14	Bell Boeing Joint Project Office Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,470,123,135	0.9%	Rank history: #18 in FY2022, #29 in FY2023, #38 in FY2024 and #26 in FY2025; unchanged since FY2020.
15	Oshkosh Corp 6 awardees, including Oshkosh Defense LLC, Oshkosh Airport Products LLC and Pierce Manufacturing Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,422,404,057	0.9%	Rank history: #21 in FY2022, #11 in FY2023, #16 in FY2024 and #15 in FY2025; up 4 since FY2020.
16	Bechtel Corp Through Bechtel Plant Machinery, Inc. Top agencies Navy (Department of the Navy)	$2,000,472,737	0.7%	Rank history: #15 in FY2022, #20 in FY2023, #14 in FY2024 and #16 in FY2025; up 13 since FY2020.
17	ELI Lilly and Company Top agencies Army (Department of the Army)	$1,913,730,016	0.7%	Rank history: #11 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
18	General Atomic Technologies Corporation 5 awardees, including General Atomics Aeronautical Systems, Inc., General Atomics and General Atomics International Services Corp Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$1,885,766,222	0.7%	Rank history: #19 in FY2022, #13 in FY2023, #19 in FY2024 and not on the FY2025 list; down 3 since FY2020.
19	Abbott Laboratories 15 awardees, including Abbott Rapid DX North America LLC, Abbott Molecular Inc. and Alere San Diego, Inc. Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs) Army (Department of the Army)	$1,783,566,180	0.6%	Rank history: #17 in FY2022, #63 in FY2023 and not on the FY2024–FY2025 lists; up 118 since FY2020.
20	Rolls-Royce Military Aero Engines Ltd 14 awardees, including Rolls-Royce Corporation, Rolls-Royce Solutions America Inc. and Rolls-Royce Marine North America Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$1,385,938,777	0.5%	Rank history: #28 in FY2022, #28 in FY2023, #75 in FY2024 and not on the FY2025 list; up 4 since FY2020.
21	Merck & Co. Inc. 3 awardees, including Merck Sharp & Dohme LLC and Biomark LLC Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) DOI (Department of the Interior)	$1,315,619,053	0.5%	Rank history: #30 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
22	Government of the United States 35 awardees, including Department of Energy, Federal Prison Industries, Inc. and DLA Troop Support Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) HHS (Department of Health and Human Services)	$1,282,179,733	0.5%	Rank history: #42 in FY2022, #88 in FY2023 and not on the FY2024–FY2025 lists; up 75 since FY2020.
23	Theodor Wille Intertrade GMBH 4 awardees, including Atlantic Diving Supply, Inc. and TWI Usa, LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) USAF (Department of the Air Force)	$1,256,562,429	0.5%	Rank history: #23 in FY2022, #12 in FY2023 and not on the FY2024–FY2025 lists; up 35 since FY2020.
24	Coins \'N Things, Inc. Top agencies Treasury (Department of the Treasury)	$1,159,262,926	0.4%	Rank history: #26 in FY2022, #59 in FY2023, #62 in FY2024 and not on the FY2025 list; up 9 since FY2020.
25	Intl Fcstone Ltd Through Stonex Financial Ltd Top agencies Treasury (Department of the Treasury)	$1,122,047,404	0.4%	Rank history: #22 in FY2022, #17 in FY2023, #74 in FY2024 and not on the FY2025 list; up 52 since FY2020.
26	BP P.L.C. 6 awardees, including BP Products North America Inc., BP Singapore Pte. Limited and BP Oil International Limited Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$936,534,344	0.3%	Rank history: #16 in FY2022, #25 in FY2023, #32 in FY2024 and not on the FY2025 list; up 6 since FY2020.
27	BAE Systems Land & Armaments L.P. 25 awardees, including BAE Systems Information and Electronic Systems Integration Inc., BAE Systems Maritime Solutions Jacksonville LLC and BAE Systems Maritime Solutions San Diego Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) Army (Department of the Army)	$920,724,298	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
28	Leonardo S.p.A. 26 awardees, including DRS Network & Imaging Systems LLC, Laurel Technologies Partnership and DRS Sustainment Systems, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$880,561,281	0.3%	Rank history: #31 in FY2022, #18 in FY2023, #21 in FY2024 and #18 in FY2025; down 6 since FY2020.
29	Honeywell International Inc. 44 awardees, including Pip Manufacturing, Inc. and Grimes Aerospace Company Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$763,183,954	0.3%	Rank history: #27 in FY2022, #24 in FY2023, #18 in FY2024 and #24 in FY2025; down 2 since FY2020.
30	Textron Inc. 13 awardees, including Bell Textron Inc., Textron Systems Corporation and Textron Aviation Defense LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$679,523,556	0.2%	Rank history: #33 in FY2022, #16 in FY2023, #15 in FY2024 and #12 in FY2025; down 10 since FY2020.
31	Leidos Holdings, Inc. 20 awardees, including Leidos, Inc., Dynetics, Inc. and Leidos Security Detection & Automation, Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army) USAF (Department of the Air Force)	$665,280,254	0.2%	Rank history: #65 in FY2022, #58 in FY2023, #39 in FY2024 and #19 in FY2025; up 7 since FY2020.
32	Government of Canada 3 awardees, including Canadian Commercial Corporation, National Research Council Canada and National Research Council of Canada Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$639,562,311	0.2%	Rank history: #37 in FY2022, #23 in FY2023 and not on the FY2024–FY2025 lists; up 5 since FY2020.
33	Saltchuk Resources, Inc. 2 awardees, including Tote Services, LLC and Delta Western, LLC Top agencies DOT (Department of Transportation) DLA (Defense Logistics Agency)	$611,244,997	0.2%	Rank history: #69 in FY2022 and not on the FY2023–FY2025 lists; down 3 since FY2020.
34	Fincantieri Marine Systems North America Inc. 3 awardees, including Marinette Marine Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$584,981,029	0.2%	Rank history: #38 in FY2022 and not on the FY2023–FY2025 lists; down 9 since FY2020.
35	Sunshine Minting Inc. Top agencies Treasury (Department of the Treasury)	$546,708,116	0.2%	Rank history: not on the FY2022–FY2025 lists; up 5 since FY2020.
36	Sierra Nevada Company, LLC 6 awardees Top agencies USAF (Department of the Air Force) Army (Department of the Army) USSOCOM (United States Special Operations Command)	$542,449,597	0.2%	Rank history: not on the FY2022 list, #71 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.
37	US Foods Inc. 20 awardees Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs) Army (Department of the Army)	$529,410,974	0.2%	Rank history: #50 in FY2022 and not on the FY2023–FY2025 lists; up 31 since FY2020.
38	Cencora, Inc. 7 awardees, including Amerisourcebergen Drug Corp, ASD Specialty Healthcare, LLC and US Bioservices Corporation Top agencies DLA (Defense Logistics Agency) HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$516,048,802	0.2%	Rank history: #66 in FY2022, #26 in FY2023, #10 in FY2024 and #10 in FY2025; up 4 since FY2020.
39	Space Exploration Technologies Corp. Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$503,584,235	0.2%	Rank history: #47 in FY2022, #37 in FY2023, #35 in FY2024 and #31 in FY2025; up 306 since FY2020.
40	Crane Co 10 awardees, including Crane & Co., Inc., Hydro-Aire Aerospace Corp and Crane Electronics, Inc. Top agencies Treasury (Department of the Treasury) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$503,474,227	0.2%	Rank history: #94 in FY2022 and not on the FY2023–FY2025 lists; up 132 since FY2020.
41	Valero Energy Corporation Through Valero Marketing and Supply Co Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$496,661,238	0.2%	Rank history: #25 in FY2022, #27 in FY2023, #30 in FY2024 and #29 in FY2025; up 20 since FY2020.
42	Ford Motor Company 3 awardees, including Ford-Werke GMBH Top agencies GSA (General Services Administration) HHS (Department of Health and Human Services)	$494,386,632	0.2%	Rank history: #39 in FY2022 and not on the FY2023–FY2025 lists; up 44 since FY2020.
43	Science Applications International Corporation 8 awardees, including Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) Army (Department of the Army)	$486,368,925	0.2%	Rank history: #40 in FY2022, #40 in FY2023, #78 in FY2024 and not on the FY2025 list; up 5 since FY2020.
44	Tcom, L.P. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$438,525,767	0.2%	Rank history: #51 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
45	Petromax Refining Company LLC Top agencies DLA (Defense Logistics Agency)	$425,035,849	0.2%	Rank history: #46 in FY2022, #42 in FY2023, #49 in FY2024 and #57 in FY2025; up 65 since FY2020.
46	Defense Systems and Solutions Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$424,884,602	0.2%	Rank history: #62 in FY2022, #33 in FY2023, #34 in FY2024 and #28 in FY2025; down 15 since FY2020.
47	Eastern Shipbuilding Group, Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy)	$389,848,363	0.1%	Rank history: not on the FY2022 list, #57 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2020.
48	Asahi Refining USA Inc. Top agencies Treasury (Department of the Treasury)	$368,265,350	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
49	Tesoro Refining & Marketing Company LLC 2 awardees, including Marathon Petroleum Company LP Top agencies DLA (Defense Logistics Agency)	$360,430,424	0.1%	Rank history: #44 in FY2022 and not on the FY2023–FY2025 lists; up 54 since FY2020.
50	Wieland Rolled Products North America LLC Top agencies Treasury (Department of the Treasury)	$358,506,936	0.1%	Rank history: #83 in FY2022, #85 in FY2023 and not on the FY2024–FY2025 lists; up 165 since FY2020.
51	Danaher Corporation 41 awardees, including Cepheid, Beckman Coulter, Inc. and Pall Aeropower Corporation Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) HHS (Department of Health and Human Services)	$355,400,939	0.1%	Rank history: #81 in FY2022 and not on the FY2023–FY2025 lists; up 37 since FY2020.
52	Sikorsky Aircraft Corporation Top agencies USAF (Department of the Air Force) Army (Department of the Army) DLA (Defense Logistics Agency)	$347,701,622	0.1%	Rank history: not on the FY2022–FY2025 lists; down 13 since FY2020.
53	Thomas Scientific LLC 14 awardees, including Vigor Marine LLC, Vigor Works LLC and Chromalloy Component Services Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$339,939,389	0.1%	Rank history: #56 in FY2022, #51 in FY2023, #80 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
54	Viasat Inc. 2 awardees Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$337,776,712	0.1%	Rank history: #63 in FY2022, #62 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2020.
55	Olin Winchester LLC Top agencies Army (Department of the Army)	$337,617,486	0.1%	Rank history: not on the FY2022–FY2025 lists; up 38 since FY2020.
56	Phillips 66 Company Top agencies DLA (Defense Logistics Agency)	$328,788,616	0.1%	Rank history: #52 in FY2022, #48 in FY2023, #54 in FY2024 and not on the FY2025 list; down 4 since FY2020.
57	Berkshire Hathaway Inc. 31 awardees, including Leachgarner, Inc., Flightsafety Defense Corporation and The Fechheimer Brothers Company Top agencies Treasury (Department of the Treasury) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$328,321,105	0.1%	Rank history: not on the FY2022–FY2025 lists; up 9 since FY2020.
58	Idemitsu Kosan Co.,Ltd. Through Okinawa Idemitsu K.K. Top agencies DLA (Defense Logistics Agency)	$327,432,357	0.1%	Rank history: #13 in FY2022, #15 in FY2023 and not on the FY2024–FY2025 lists; up 306 since FY2020.
59	Glaxosmithkline LLC 2 awardees Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) HHS (Department of Health and Human Services)	$318,040,398	0.1%	Rank history: #24 in FY2022 and not on the FY2023–FY2025 lists; down 4 since FY2020.
60	Thales 16 awardees, including Thales Defense & Security Inc., Thales Usa, Inc. and Thales AVS France SAS Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$311,517,776	0.1%	Rank history: #67 in FY2022 and not on the FY2023–FY2025 lists; up 16 since FY2020.
61	Spectrum Group International Inc. Through A-Mark Precious Metals, Inc. Top agencies Treasury (Department of the Treasury)	$305,248,490	0.1%	Rank history: #49 in FY2022, #31 in FY2023 and not on the FY2024–FY2025 lists; down 20 since FY2020.
62	CFM International Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$302,287,673	0.1%	Rank history: #79 in FY2022 and not on the FY2023–FY2025 lists; up 2 since FY2020.
63	Austal Limited Through Austal Usa, LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$299,602,323	0.1%	Rank history: #29 in FY2022, #56 in FY2023 and not on the FY2024–FY2025 lists; up 78 since FY2020.
64	Chemring Group PLC 8 awardees, including Chemring Sensors and Electronic Systems, Inc., Kilgore Flares Company LLC and Alloy Surfaces Co Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$295,290,300	0.1%	Rank history: not on the FY2022–FY2025 lists; up 1 since FY2020.
65	H.i.g. Capital Management Inc. 4 awardees, including Iron Bow Technologies, LLC, Empower AI, Inc. and Wastequip Manufacturing Co LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) DOT (Department of Transportation)	$290,982,157	0.1%	Rank history: #61 in FY2022, #61 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
66	Erapsco Top agencies Navy (Department of the Navy)	$290,846,363	0.1%	Rank history: #70 in FY2022, #72 in FY2023 and not on the FY2024–FY2025 lists; up 5 since FY2020.
67	Airboss of America Corp Through Airboss Defense Group, LLC Top agencies HHS (Department of Health and Human Services)	$288,072,672	0.1%	Rank history: not on the FY2022–FY2025 lists; up 37 since FY2020.
68	Bollinger Shipyards Inc 2 awardees, including Bollinger Shipyards Lockport, L.L.C. and Chand, L.L.C. Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$282,587,074	0.1%	Rank history: not on the FY2022–FY2025 lists; up 13 since FY2020.
69	Globalfoundries U.S. 2 LLC 4 awardees, including ABU Dhabi National Oil Company for Distribution Pjsc and Moeve S.A. Top agencies DLA (Defense Logistics Agency) DMEA (Defense Microelectronics Activity) OSD (Office of the Secretary of Defense)	$274,538,885	0.1%	Rank history: #90 in FY2022, #74 in FY2023 and not on the FY2024–FY2025 lists; down 12 since FY2020.
70	Noble Sales Co. Inc. 2 awardees, including Noble Supply & Logistics, LLC and Tactical & Survival Specialties, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) GSA (General Services Administration)	$274,062,134	0.1%	Rank history: not on the FY2022–FY2023 lists, #40 in FY2024 and #46 in FY2025; up 180 since FY2020.
71	Siemens Aktiengesellschaft 21 awardees, including Siemens Medical Solutions Usa, Inc., Siemens Healthcare Diagnostics Inc. and Siemens Industry Inc. Top agencies VA (Department of Veterans Affairs) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$267,918,296	0.1%	Rank history: #32 in FY2022, #75 in FY2023 and not on the FY2024–FY2025 lists; up 52 since FY2020.
72	Puritan Medical Products Company I LP Top agencies USAF (Department of the Air Force)	$267,469,191	0.1%	Rank history: not on the FY2022–FY2025 lists; up 316 since FY2020.
73	Transdigm Group Incorporated 53 awardees, including Armtec Countermeasures Co, Airborne Systems North America of CA Inc. and Armtec Defense Products Co. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$263,720,073	0.1%	Rank history: #71 in FY2022, #30 in FY2023 and not on the FY2024–FY2025 lists; up 42 since FY2020.
74	Medline Industries, LP 2 awardees Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$261,146,362	0.1%	Rank history: #76 in FY2022, #68 in FY2023, #63 in FY2024 and #98 in FY2025; up 28 since FY2020.
75	W S Darley & Co 3 awardees, including WS Darley & Co Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$259,444,736	0.1%	Rank history: #53 in FY2022, #43 in FY2023, #43 in FY2024 and #34 in FY2025; up 274 since FY2020.
76	National Presto Industries 4 awardees, including Amtec Corporation, Spectra Technologies LLC and Rely Innovations Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) VA (Department of Veterans Affairs)	$258,403,262	0.1%	Rank history: not on the FY2022 list, #79 in FY2023 and not on the FY2024–FY2025 lists; up 203 since FY2020.
77	Emergent Biosolutions Inc. 7 awardees, including Emergent Product Development Gaithersburg Inc., Emergent Biosolutions Canada Inc. and Emergent Devices, Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) DOS (Department of State)	$257,359,270	0.1%	Rank history: not on the FY2022 list, #98 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2020.
78	Ball Corp Through BAE Systems Space & Mission Systems Inc. Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force) Commerce (Department of Commerce)	$256,179,985	0.1%	Rank history: not on the FY2022–FY2025 lists; up 18 since FY2020.
79	Par Pacific Holdings, Inc. 5 awardees, including Par Hawaii Refining LLC, US Oil & Refining Co and Hermes Consolidated LLC Top agencies DLA (Defense Logistics Agency)	$251,904,529	0.1%	Rank history: #82 in FY2022, #67 in FY2023 and not on the FY2024–FY2025 lists; up 29 since FY2020.
80	FCA US LLC 2 awardees, including Psar Portugal, S.A. Top agencies GSA (General Services Administration) DOS (Department of State) HHS (Department of Health and Human Services)	$246,940,910	0.1%	Rank history: not on the FY2022–FY2025 lists; up 12 since FY2020.
81	Saab AB 6 awardees, including Saab Dynamics Aktiebolag, Saab, Inc. and Saab Aktiebolag Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$243,382,127	0.1%	Rank history: #60 in FY2022 and not on the FY2023–FY2025 lists; down 12 since FY2020.
82	American Maritime Holdings, LLC 2 awardees, including Marine Hydraulics International, LLC and Tecnico Corporation Top agencies Navy (Department of the Navy)	$243,246,340	0.1%	Rank history: not on the FY2022–FY2025 lists; up 37 since FY2020.
83	Medico Industries Inc. 2 awardees, including General Dynamics OTS (Wilkes Barre), LLC and Action Lift Inc. Top agencies Army (Department of the Army)	$237,681,868	0.1%	Rank history: not on the FY2022–FY2025 lists; up 77 since FY2020.
84	Poongsan Corporation 2 awardees, including PMX Industries, Inc. Top agencies Treasury (Department of the Treasury) Army (Department of the Army)	$225,897,242	0.1%	Rank history: not on the FY2022–FY2025 lists; up 58 since FY2020.
85	Produce Alliance, L.L.C. Top agencies USDA (Department of Agriculture)	$224,423,904	0.1%	Rank history: not on the FY2022–FY2025 lists; up 159 since FY2020.
86	ST Engineering Halter Marine and Offshore Inc. 9 awardees, including Bollinger Mississippi Shipbuilding, LLC, Bollinger Mississippi Repair, LLC and ST Engineering Marine Ltd. Top agencies Navy (Department of the Navy) Commerce (Department of Commerce) VA (Department of Veterans Affairs)	$220,978,846	0.1%	Rank history: #35 in FY2022 and not on the FY2023–FY2025 lists; up 178 since FY2020.
87	OSI Systems Inc. 5 awardees, including Rapiscan Systems Inc., American Science & Engineering Inc. and Spacelabs Healthcare LLC Top agencies DHS (Department of Homeland Security) VA (Department of Veterans Affairs) AOUSC (Administrative Office of the U.S. Courts)	$220,196,002	0.1%	Rank history: not on the FY2022–FY2025 lists; up 382 since FY2020.
88	Astrazeneca PLC 2 awardees, including Astrazeneca Pharmaceuticals LP Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$214,573,577	0.1%	Rank history: #43 in FY2022 and not on the FY2023–FY2025 lists; down 38 since FY2020.
89	Global Food Services Company Top agencies DLA (Defense Logistics Agency)	$213,589,739	0.1%	Rank history: #92 in FY2022, not on the FY2023 list, #92 in FY2024 and #81 in FY2025; up 33 since FY2020.
90	Cargill, Incorporated 2 awardees, including Cargill Meat Solutions Corporation Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$213,412,299	0.1%	Rank history: #87 in FY2022 and not on the FY2023–FY2025 lists; up 139 since FY2020.
91	Sonova Holding AG 2 awardees, including Sonova USA Inc. and Advanced Bionics, LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$211,805,626	0.1%	Rank history: not on the FY2022 list, #91 in FY2023, #76 in FY2024 and not on the FY2025 list; up 92 since FY2020.
92	The Charles Stark Draper Laboratory, Inc. Top agencies Navy (Department of the Navy) HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$210,613,936	0.1%	Rank history: not on the FY2022–FY2025 lists; up 21 since FY2020.
93	STC Bahrain B.S.C Closed Through S-Oil Corporation Top agencies DLA (Defense Logistics Agency)	$209,048,153	0.1%	Rank history: #55 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
94	LOC Performance Products LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$207,900,914	0.1%	Rank history: not on the FY2022–FY2023 lists, #99 in FY2024 and #60 in FY2025; up 42 since FY2020.
95	The Bahrain Petroleum Company BSC (CLOSED) 2 awardees, including Arab Shipbuilding & Repair Yard Co. (Asry) Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$206,560,935	0.1%	Rank history: #74 in FY2022 and not on the FY2023–FY2025 lists; up 68 since FY2020.
96	Thermo Electron Corporation 33 awardees, including Remel Inc., Life Technologies Corporation and Thermo Electron North America LLC Top agencies HHS (Department of Health and Human Services) DHS (Department of Homeland Security) DOJ (Department of Justice)	$206,352,483	0.1%	Rank history: not on the FY2022–FY2025 lists; down 49 since FY2020.
97	General Motors Company 4 awardees, including GM Defense LLC Top agencies GSA (General Services Administration) Army (Department of the Army) DLA (Defense Logistics Agency)	$205,605,771	0.1%	Rank history: #95 in FY2022, #73 in FY2023, #85 in FY2024 and #71 in FY2025; up 139 since FY2020.
98	Thoma-Sea Marine Constructors, L.L.C. Top agencies Navy (Department of the Navy) Army (Department of the Army) DHS (Department of Homeland Security)	$204,998,102	0.1%	Rank history: not on the FY2022 list, #70 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
99	Aarcorp 10 awardees, including AAR Supply Chain, Inc., AAR Manufacturing, Inc. and AAR Government Services, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$199,342,768	0.1%	Rank history: #68 in FY2022, #93 in FY2023 and not on the FY2024–FY2025 lists; down 10 since FY2020.
100	Concordance Healthcare Solutions LLC Top agencies VA (Department of Veterans Affairs) DLA (Defense Logistics Agency)	$192,271,638	0.1%	Rank history: not on the FY2022–FY2025 lists; up 99 since FY2020.

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100 of 26,857 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 31-33

Code	Net obligations	Largest contractor
336 Transportation Equipment Manufacturing	$114,649,040,598	Lockheed Martin Corporation
325 Chemical Manufacturing	$57,394,873,147	Pfizer Inc.
334 Computer and Electronic Product Manufacturing	$32,089,364,748	RTX Corporation
332 Fabricated Metal Product Manufacturing	$11,891,608,906	Bechtel Corp
311 Food Manufacturing	$8,658,358,939	US Foods Inc.
339 Miscellaneous Manufacturing	$6,937,727,646	Theodor Wille Intertrade GMBH
324 Petroleum and Coal Products Manufacturing	$6,648,462,139	BP P.L.C.
333 Machinery Manufacturing	$5,382,965,821	RTX Corporation
331 Primary Metal Manufacturing	$4,424,943,827	Coins \'N Things, Inc.
335 Electrical Equipment, Appliance, and Component Manufacturing	$1,636,711,491	Cummins Inc.
315 Apparel Manufacturing	$1,569,700,466	Goodwill Industries of South Florida Inc.
337 Furniture and Related Product Manufacturing	$1,090,856,532	Nana Regional Corporation Inc
322 Paper Manufacturing	$647,486,428	Crane Co
314 Textile Product Mills	$551,974,638	Hunter Defense Technolog
326 Plastics and Rubber Products Manufacturing	$302,444,791	Onex Corporation
313 Textile Mills	$191,386,374	Burlington Industries LLC
321 Wood Product Manufacturing	$168,504,845	Aarcorp
327 Nonmetallic Mineral Product Manufacturing	$141,158,874	Mississippi Limestone Corp
316 Leather and Allied Product Manufacturing	$136,453,227	Belleville Shoe Manufacturing Company
312 Beverage and Tobacco Product Manufacturing	$41,885,290	Composite Analysis Group, Inc.
323 Printing and Related Support Activities	$41,190,873	Focus Camera LLC

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 $274 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.

Quick answers

Who were the top 10 NAICS 31-33 contractors in FY2021?

1. Lockheed Martin Corporation ($33.7B), 2. Pfizer Inc. ($23.1B), 3. The Boeing Company ($21.1B), 4. RTX Corporation ($15.6B), 5. General Dynamics Corporation ($13B), 6. Mckesson Corporation ($12B), 7. Northrop Grumman Corporation ($8.56B), 8. Modernatx Inc. ($7.36B), 9. Huntington Ingalls Industries, Inc. ($5.67B), 10. Regeneron Pharmaceuticals Inc. ($5.57B).

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