Top 100 Contractors in NAICS 33641: Aerospace Product and Parts Manufacturing, FY2021

Name: Top 100 Contractors in NAICS 33641: Aerospace Product and Parts Manufacturing, FY2021
Creator: GovTribe

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

The top 10 won 78% of FY2021 NAICS 33641 contract dollars

Contract obligations: $83,607,175,448 Net of deobligations, by contracts coded NAICS 33641 or a code under it
Contractors: 2,723 Parent companies with an obligation
Largest contractor: Lockheed Martin Corporation $30.4 billion, 31.7% of obligations
Data as of: Oct 14, 2026

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

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Lockheed Martin Corporation 41 awardees, including Sikorsky Aircraft Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$30,431,121,787	31.7%	Rank history: #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since FY2020.
2	The Boeing Company 37 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) NASA (National Aeronautics and Space Administration)	$19,726,991,098	20.5%	Rank history: #3 in FY2022, #2 in FY2023, #2 in FY2024 and #3 in FY2025; up 1 since FY2020.
3	RTX Corporation 69 awardees, including Raytheon Company, Raytheon / Lockheed Martin Javelin JV and Goodrich Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$8,716,916,117	9.1%	Rank history: #2 in FY2022, #3 in FY2023, #3 in FY2024 and #2 in FY2025; up 1 since FY2020.
4	Northrop Grumman Corporation 52 awardees, including Northrop Grumman Systems Corporation, Alliant Techsystems Operations LLC and Orbital Sciences LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$5,649,355,002	5.9%	Rank history: #4 in FY2022, #4 in FY2023, #4 in FY2024 and #4 in FY2025; up 1 since FY2020.
5	General Electric Company 16 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)	$2,695,881,458	2.8%	Rank history: #5 in FY2022, #5 in FY2023, #5 in FY2024 and #5 in FY2025; up 2 since FY2020.
6	Bell Boeing Joint Project Office Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,463,967,687	2.6%	Rank history: #6 in FY2022, #10 in FY2023, #14 in FY2024 and #11 in FY2025; up 2 since FY2020.
7	L3Harris Technologies, Inc. 31 awardees, including L3Harris Technologies Integrated Systems L.P., CAE USA Inc. and L3 Technologies, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) USSOCOM (United States Special Operations Command)	$1,797,766,029	1.9%	Rank history: #7 in FY2022, #6 in FY2023, #7 in FY2024 and #6 in FY2025; up 3 since FY2020.
8	General Atomic Technologies Corporation 4 awardees, including General Atomics Aeronautical Systems, Inc. and General Atomics Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$1,591,527,291	1.7%	Rank history: #8 in FY2022, #7 in FY2023, #8 in FY2024 and not on the FY2025 list; up 3 since FY2020.
9	Rolls-Royce Military Aero Engines Ltd 6 awardees, including Rolls-Royce Corporation, Rolls-Royce Deutschland Ltd & Co KG and Rolls-Royce Defense Services Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$934,847,722	1.0%	Rank history: #9 in FY2022, #9 in FY2023, #23 in FY2024 and not on the FY2025 list; up 6 since FY2020.
10	BAE Systems PLC 15 awardees, including BAE Systems Information and Electronic Systems Integration Inc., BAE Systems Land & Armaments L.P. and BAE Systems Technology Solutions & Services Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$554,364,220	0.6%	Rank history: #10 in FY2022, #11 in FY2023, #10 in FY2024 and #16 in FY2025; up 6 since FY2020.
11	Textron Inc. 10 awardees, including Bell Textron Inc., Textron Systems Corporation and Textron Aviation Defense LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$547,916,038	0.6%	Rank history: #11 in FY2022, #8 in FY2023, #6 in FY2024 and #7 in FY2025; up 6 since FY2020.
12	Space Exploration Technologies Corp. Top agencies NASA (National Aeronautics and Space Administration)	$503,527,735	0.5%	Rank history: #12 in FY2022, #14 in FY2023, #13 in FY2024 and #14 in FY2025; up 51 since FY2020.
13	Defense Systems and Solutions Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$422,705,774	0.4%	Rank history: #14 in FY2022, #12 in FY2023, #12 in FY2024 and #13 in FY2025; up 6 since FY2020.
14	Honeywell International Inc. 23 awardees, including Grimes Aerospace Company Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$364,755,419	0.4%	Rank history: #13 in FY2022, #15 in FY2023, #11 in FY2024 and #19 in FY2025; up 8 since FY2020.
15	Sikorsky Aircraft Corporation Top agencies USAF (Department of the Air Force) Army (Department of the Army) DLA (Defense Logistics Agency)	$347,701,622	0.4%	Rank history: not on the FY2022–FY2025 lists; up 6 since FY2020.
16	CFM International Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$302,287,673	0.3%	Rank history: #15 in FY2022, #17 in FY2023, #21 in FY2024 and #25 in FY2025; up 9 since FY2020.
17	Sierra Nevada Company, LLC 6 awardees Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) Navy (Department of the Navy)	$249,006,439	0.3%	Rank history: #88 in FY2022, #35 in FY2023 and not on the FY2024–FY2025 lists; up 9 since FY2020.
18	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)	$208,381,449	0.2%	Rank history: #26 in FY2022, #31 in FY2023, #31 in FY2024 and not on the FY2025 list; up 13 since FY2020.
19	General Dynamics Corporation 13 awardees, including Gulfstream Aerospace Corporation, General Dynamics-Ots, Inc. and GCI Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) Commerce (Department of Commerce)	$206,375,559	0.2%	Rank history: #31 in FY2022, #26 in FY2023, #18 in FY2024 and #20 in FY2025; up 8 since FY2020.
20	Leonardo Helicopters US Corporation Top agencies Navy (Department of the Navy)	$171,047,760	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
21	CAE Inc. 4 awardees, including CAE USA Inc. and CAE USA Mission Solutions Inc. Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$161,936,210	0.2%	Rank history: #19 in FY2022, #20 in FY2023, #25 in FY2024 and #26 in FY2025; up 31 since FY2020.
22	Ram-System GMBH Top agencies Navy (Department of the Navy)	$135,855,719	0.1%	Rank history: not on the FY2022 list, #13 in FY2023, not on the FY2024 list and #18 in FY2025; up 149 since FY2020.
23	Parker-Hannifin Corporation 6 awardees, including Lord Corporation Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$130,569,479	0.1%	Rank history: #17 in FY2022, #16 in FY2023, #32 in FY2024 and not on the FY2025 list; up 13 since FY2020.
24	Amentum Services, Inc. 2 awardees, including Dyncorp International LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$129,165,987	0.1%	Rank history: #32 in FY2022, #30 in FY2023, #33 in FY2024 and not on the FY2025 list; up 99 since FY2020.
25	Aerovironment, Inc. 5 awardees Top agencies Army (Department of the Army) Navy (Department of the Navy) DOT (Department of Transportation)	$117,034,534	0.1%	Rank history: #20 in FY2022, #18 in FY2023, #20 in FY2024 and #17 in FY2025; up 15 since FY2020.
26	Kratos Defense & Security Solutions, Inc. 7 awardees, including Kratos Unmanned Aerial Systems, Inc., Micro Systems, Inc. and Kratos S1, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$115,933,417	0.1%	Rank history: #28 in FY2022, #19 in FY2023, #40 in FY2024 and not on the FY2025 list; up 27 since FY2020.
27	L3Harris Technologies Integrated Systems L.P. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$113,695,951	0.1%	Rank history: not on the FY2022–FY2023 lists, #29 in FY2024 and not on the FY2025 list; up 52 since FY2020.
28	Standardaero Aviation Holdings, Inc. 8 awardees, including Standard Aero (San Antonio) Inc., Pas Technologies Inc. and Vector Aerospace Engine Services-Atlantic Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DOS (Department of State)	$112,181,817	0.1%	Rank history: #29 in FY2022, #29 in FY2023, #98 in FY2024 and not on the FY2025 list; up 28 since FY2020.
29	Science and Engineering Services LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$105,136,699	0.1%	Rank history: #38 in FY2022, #22 in FY2023, #27 in FY2024 and #27 in FY2025; up 4 since FY2020.
30	Aarcorp 8 awardees, including AAR Government Services, Inc., AAR Aircraft Services, Inc. and AAR Supply Chain, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$96,754,840	0.1%	Rank history: #22 in FY2022, #21 in FY2023, #42 in FY2024 and not on the FY2025 list; up 17 since FY2020.
31	Rolls-Royce Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$91,304,681	0.1%	Rank history: #96 in FY2022, not on the FY2023 list, #26 in FY2024 and not on the FY2025 list; up 15 since FY2020.
32	Moog Inc. 12 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$88,868,761	0.1%	Rank history: #24 in FY2022, #38 in FY2023, #53 in FY2024 and #35 in FY2025; up 11 since FY2020.
33	Meggitt PLC 17 awardees, including Meggitt Aircraft Braking Systems Corporation, Meggitt Defense Systems, Inc. and Rockmart Fuel Containment, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$87,891,975	0.1%	Rank history: #33 in FY2022 and not on the FY2023–FY2025 lists; up 16 since FY2020.
34	Aerojet Rocketdyne Holdings, Inc. 6 awardees, including Aerojet Rocketdyne Coleman Aerospace Inc., Aerojet Rocketdyne, Inc. and Arde Inc. Top agencies MDA (DOD Missile Defense Agency) NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$83,811,103	0.1%	Rank history: #30 in FY2022, #25 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2020.
35	Government of Canada Through Canadian Commercial Corporation Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$79,052,215	0.1%	Rank history: #23 in FY2022, #50 in FY2023, #75 in FY2024 and not on the FY2025 list; up 15 since FY2020.
36	Vertex Aerospace LLC 3 awardees, including V2X Aerospace LLC and Crestview Aerospace LLC Top agencies Navy (Department of the Navy) DOJ (Department of Justice) DLA (Defense Logistics Agency)	$78,370,108	0.1%	Rank history: #27 in FY2022, #52 in FY2023 and not on the FY2024–FY2025 lists; up 38 since FY2020.
37	Bombardier Inc. 3 awardees, including Learjet Inc. Top agencies USAF (Department of the Air Force) DOT (Department of Transportation) DOJ (Department of Justice)	$70,887,230	0.1%	Rank history: #21 in FY2022, #41 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
38	Elbit Systems Ltd 7 awardees, including Elbitamerica, Inc., M7 Aerospace LLC and Real-Time Laboratories, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$69,243,268	0.1%	Rank history: #48 in FY2022, #68 in FY2023, #91 in FY2024 and not on the FY2025 list; up 28 since FY2020.
39	PAE Holding Corporation Through PAE Aviation and Technical Services LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$69,067,947	0.1%	Rank history: #41 in FY2022, #71 in FY2023 and not on the FY2024–FY2025 lists; up 62 since FY2020.
40	Strategic Mission Systems, LLC Top agencies USAF (Department of the Air Force)	$66,238,919	0.1%	Rank history: #61 in FY2022, #80 in FY2023, #76 in FY2024 and #100 in FY2025; up 19 since FY2020.
41	Heico Aerospace Corporat 13 awardees, including Robertson Fuel Systems, L.L.C., Aerospace & Commercial Technologies, LLC and Seal Dynamics LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$64,924,922	0.1%	Rank history: #73 in FY2022, #39 in FY2023, #55 in FY2024 and #51 in FY2025; up 51 since FY2020.
42	Tyonek Native Corporatio 10 awardees, including Tyonek Global Services LLC, Tyonek Services Overhaul Facility-Stennis, LLC and Tyonek Worldwide Services Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$64,240,433	0.1%	Rank history: #44 in FY2022 and not on the FY2023–FY2025 lists; up 31 since FY2020.
43	BAE Systems Land & Armaments L.P. 11 awardees, including BAE Systems Information and Electronic Systems Integration Inc. and BAE Systems Technology Solutions & Services Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$63,314,129	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
44	Cymstar LLC Top agencies USAF (Department of the Air Force)	$61,086,560	0.1%	Rank history: #53 in FY2022, #49 in FY2023, #54 in FY2024 and #75 in FY2025; up 26 since FY2020.
45	Nova Technologies An Employee-Owned Engineering Company Top agencies USAF (Department of the Air Force)	$58,383,096	0.1%	Rank history: #34 in FY2022, #37 in FY2023, #46 in FY2024 and #54 in FY2025; up 40 since FY2020.
46	Intuitive Research and Technology Corporation Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$57,474,802	0.1%	Rank history: #42 in FY2022, #54 in FY2023 and not on the FY2024–FY2025 lists; up 36 since FY2020.
47	Woodward Governor Company 5 awardees, including Woodward HRT Inc., Woodward, Inc. and Woodward Fst, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$56,272,561	0.1%	Rank history: #35 in FY2022, #24 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2020.
48	Aircraft Readiness Alliance, LLC Top agencies Navy (Department of the Navy)	$55,596,792	0.1%	Rank history: #49 in FY2022, #89 in FY2023 and not on the FY2024–FY2025 lists; up 13 since FY2020.
49	Berkshire Hathaway Inc. 10 awardees, including Flightsafety Defense Corporation, SPS Technologies LLC and Orkal Industries LLC Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$55,233,288	0.1%	Rank history: #47 in FY2022, #72 in FY2023 and not on the FY2024–FY2025 lists; up 16 since FY2020.
50	Leidos Holdings, Inc. 5 awardees, including Dynetics, Inc. and Leidos, Inc. Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$54,290,117	0.1%	Rank history: #68 in FY2022, #83 in FY2023, not on the FY2024 list and #15 in FY2025; up 115 since FY2020.
51	Martin-Baker (ENGINEERING) Ltd 2 awardees, including Martin-Baker Aircraft Company Limited and Martin-Baker America Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$51,949,905	0.1%	Rank history: #77 in FY2022 and not on the FY2023–FY2025 lists; up 16 since FY2020.
52	Transdigm Group Incorporated 32 awardees, including Arkwin Industries, Inc., Tactair Fluid Controls Inc. and Champion Aerospace LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$48,511,596	0.1%	Rank history: #37 in FY2022, #32 in FY2023 and not on the FY2024–FY2025 lists; up 24 since FY2020.
53	Thomas Scientific LLC 5 awardees, including Chromalloy Component Services Inc., Chromalloy San Diego Corp and Chromalloy, S.A. De C.V. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$47,483,733	<0.1%	Rank history: #93 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
54	DCS Corporation Top agencies Navy (Department of the Navy)	$46,749,732	<0.1%	Rank history: #59 in FY2022, #64 in FY2023 and not on the FY2024–FY2025 lists; up 15 since FY2020.
55	Kay and Associates, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$45,916,859	<0.1%	Rank history: #66 in FY2022, #44 in FY2023, #45 in FY2024 and #46 in FY2025; up 9 since FY2020.
56	Vectrus Systems LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$45,322,768	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 2 since FY2020.
57	Airbus Americas Inc. 4 awardees, including Airbus Helicopters, Inc., Airbus US Space & Defense Inc. and Airbus DS Military Aircraft, Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army)	$45,288,346	<0.1%	Rank history: #55 in FY2022, #56 in FY2023 and not on the FY2024–FY2025 lists; down 23 since FY2020.
58	SAFRAN 20 awardees, including Avox Systems Inc., Curtiss-Wright Flow Control Service, LLC and Safran Landing Systems Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$43,903,222	<0.1%	Rank history: not on the FY2022 list, #65 in FY2023, #74 in FY2024 and #37 in FY2025; up 40 since FY2020.
59	Northrop Grumman Systems Corp 2 awardees Top agencies USAF (Department of the Air Force)	$42,628,484	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 35 since FY2020.
60	Aero Simulation, Inc. Top agencies USAF (Department of the Air Force)	$41,238,498	<0.1%	Rank history: #45 in FY2022, #59 in FY2023, #79 in FY2024 and not on the FY2025 list; up 21 since FY2020.
61	Jamaica Bearings Co., Inc. 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$39,400,324	<0.1%	Rank history: #51 in FY2022, #45 in FY2023, #39 in FY2024 and #39 in FY2025; up 7 since FY2020.
62	Atec Inc. 3 awardees, including Celtech Corp Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$38,013,374	<0.1%	Rank history: #62 in FY2022, #74 in FY2023, #48 in FY2024 and #52 in FY2025; up 71 since FY2020.
63	J.f. Taylor, Inc. Top agencies Navy (Department of the Navy)	$35,600,679	<0.1%	Rank history: #60 in FY2022, #76 in FY2023, #81 in FY2024 and not on the FY2025 list; up 42 since FY2020.
64	LOC Performance Products LLC Top agencies Army (Department of the Army)	$35,085,882	<0.1%	Rank history: #43 in FY2022, #28 in FY2023, #51 in FY2024 and #48 in FY2025; up 31 since FY2020.
65	VSE Corporation 3 awardees, including Wheeler Fleet Solutions, Co. and VSE Aviation, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$30,913,567	<0.1%	Rank history: #72 in FY2022, #42 in FY2023 and not on the FY2024–FY2025 lists; up 84 since FY2020.
66	Plexsys Interface Products, Inc. Top agencies USAF (Department of the Air Force)	$30,243,845	<0.1%	Rank history: #84 in FY2022 and not on the FY2023–FY2025 lists; up 63 since FY2020.
67	D-J Engineering Inc. 2 awardees, including DJ Composites Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$29,954,712	<0.1%	Rank history: not on the FY2022–FY2024 lists and #89 in FY2025; up 51 since FY2020.
68	Transaero, Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) USAF (Department of the Air Force)	$29,821,815	<0.1%	Rank history: #75 in FY2022, #97 in FY2023, #64 in FY2024 and #77 in FY2025; up 10 since FY2020.
69	Raytheon Company Top agencies Navy (Department of the Navy) MDA (DOD Missile Defense Agency) USAF (Department of the Air Force)	$29,503,243	<0.1%	Rank history: #16 in FY2022 and not on the FY2023–FY2025 lists; down 55 since FY2020.
70	Strategic Technology Institute Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$29,314,202	<0.1%	Rank history: #64 in FY2022, #55 in FY2023, #56 in FY2024 and #53 in FY2025; up 66 since FY2020.
71	Space Systems/Loral LLC Through Lanteris Space LLC Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$28,096,624	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 130 since FY2020.
72	General Atomics Aeronautical Systems, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$27,908,726	<0.1%	Rank history: #40 in FY2022, not on the FY2023 list, #15 in FY2024 and #12 in FY2025; up 47 since FY2020.
73	Leonardo S.p.A. 12 awardees, including DRS Advanced ISR LLC, DRS Systems, Inc. and DRS Network & Imaging Systems LLC Top agencies USAF (Department of the Air Force) USSOCOM (United States Special Operations Command) DHS (Department of Homeland Security)	$27,479,518	<0.1%	Rank history: not on the FY2022 list, #40 in FY2023, #90 in FY2024 and not on the FY2025 list; up 54 since FY2020.
74	Allied Defense Industries Inc. 3 awardees, including Aero International, LLC and Allied Marine Services LLC Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$27,196,471	<0.1%	Rank history: #97 in FY2022 and not on the FY2023–FY2025 lists; up 84 since FY2020.
75	Cobham Advanced Electronic Solutions Inc. 8 awardees, including Mission Systems Davenport Inc., Mission Systems Wimborne Limited and Chelton Avionics, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$26,930,987	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 24 since FY2020.
76	Arista Aviation Services Group, LLC 2 awardees, including Arista Aviation Services, Llc. Top agencies DOS (Department of State) USAF (Department of the Air Force)	$25,288,160	<0.1%	Rank history: #83 in FY2022 and not on the FY2023–FY2025 lists; up 105 since FY2020.
77	BAE Systems Information and Electronic Systems Integration Inc. Top agencies USAF (Department of the Air Force)	$24,201,669	<0.1%	Rank history: #95 in FY2022 and not on the FY2023–FY2025 lists; down 2 since FY2020.
78	ES3 Prime Logistics Group Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$23,431,724	<0.1%	Rank history: #89 in FY2022, #75 in FY2023, #77 in FY2024 and #49 in FY2025; down 6 since FY2020.
79	AerSale Holdings Inc. 2 awardees, including Aersale, Inc. Top agencies DOJ (Department of Justice)	$23,252,615	<0.1%	Rank history: not on the FY2022–FY2023 lists, #97 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
80	TAC Industries Inc. Top agencies USAF (Department of the Air Force)	$22,773,720	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 81 since FY2020.
81	Dayton T. Brown, Inc. Top agencies Navy (Department of the Navy)	$22,530,142	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 23 since FY2020.
82	Williams Aerospace & Manufacturing Inc. 5 awardees, including Allclear Repair Services, Inc., Airborne Technologies, Inc. and Tavco, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$21,841,959	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 34 since FY2020.
83	PPG Industries, Inc. 5 awardees, including Sierracin Corporation, Texstars LLC and PRC - Desoto International, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$21,738,527	<0.1%	Rank history: #74 in FY2022 and not on the FY2023–FY2025 lists; up 61 since FY2020.
84	Southwest Research Institute Top agencies Commerce (Department of Commerce) NASA (National Aeronautics and Space Administration)	$21,667,174	<0.1%	Rank history: #85 in FY2022, #91 in FY2023, #60 in FY2024 and #73 in FY2025; up 57 since FY2020.
85	Systems Application & Technologies Inc. Top agencies Navy (Department of the Navy)	$21,639,007	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 53 since FY2020.
86	Physical Optics Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$21,086,332	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 10 since FY2020.
87	Essex Industries Inc. 5 awardees Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$20,296,087	<0.1%	Rank history: not on the FY2022 list, #96 in FY2023 and not on the FY2024–FY2025 lists; up 148 since FY2020.
88	Delaware Resource Group of Oklahoma LLC Top agencies USAF (Department of the Air Force)	$20,083,191	<0.1%	Rank history: #69 in FY2022, #57 in FY2023, #67 in FY2024 and not on the FY2025 list; up 58 since FY2020.
89	Thomas Instrument, Incorporated 2 awardees Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$20,001,814	<0.1%	Rank history: #79 in FY2022, #94 in FY2023, #59 in FY2024 and #65 in FY2025; up 21 since FY2020.
90	Affordable Engineering Services L.L.C. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force)	$19,796,647	<0.1%	Rank history: #82 in FY2022 and not on the FY2023–FY2025 lists; up 19 since FY2020.
91	Korean Air Lines Co.,Ltd. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$19,556,566	<0.1%	Rank history: #92 in FY2022, #67 in FY2023 and not on the FY2024–FY2025 lists; up 23 since FY2020.
92	David Clark Company Incorporated Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$19,466,553	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 15 since FY2020.
93	Honeycomb Company of America Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$19,175,047	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 126 since FY2020.
94	Teledyne Technologies Incorporated 5 awardees, including Teledyne Flir, LLC, Teledyne Defense Electronics, LLC and Teledyne Risi, Inc. Top agencies Navy (Department of the Navy)	$18,953,264	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 216 since FY2020.
95	Rockwell Collins, Inc. Top agencies Navy (Department of the Navy)	$18,442,730	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 13 since FY2020.
96	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$18,198,562	<0.1%	Rank history: #98 in FY2022, #100 in FY2023, #87 in FY2024 and #91 in FY2025; up 57 since FY2020.
97	Griffon Aerospace, Inc. Top agencies Army (Department of the Army)	$18,017,317	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 24 since FY2020.
98	Aero-Glen International LLC Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$17,597,399	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 97 since FY2020.
99	Eaton Corporation 13 awardees, including Eaton Aerospace, LLC and Eaton Industrial Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$17,191,736	<0.1%	Rank history: not on the FY2022 list, #33 in FY2023 and not on the FY2024–FY2025 lists; up 29 since FY2020.
100	PTC Inc. Top agencies USAF (Department of the Air Force)	$16,906,310	<0.1%	Rank history: #100 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.

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100 of 2,723 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 33641

Code	Net obligations	Largest contractor
336411 Aircraft Manufacturing	$40,865,467,450	Lockheed Martin Corporation
336414 Guided Missile and Space Vehicle Manufacturing	$18,947,167,517	Lockheed Martin Corporation
336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing	$14,230,897,288	Lockheed Martin Corporation
336412 Aircraft Engine and Engine Parts Manufacturing	$7,336,722,140	General Electric Company
336419 Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing	$1,504,856,951	RTX Corporation
336415 Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing	$722,064,103	Lockheed Martin Corporation

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 $96.1 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 33641 contractors in FY2021?

1. Lockheed Martin Corporation ($30.4B), 2. The Boeing Company ($19.7B), 3. RTX Corporation ($8.72B), 4. Northrop Grumman Corporation ($5.65B), 5. General Electric Company ($2.7B), 6. Bell Boeing Joint Project Office ($2.46B), 7. L3Harris Technologies, Inc. ($1.8B), 8. General Atomic Technologies Corporation ($1.59B), 9. Rolls-Royce Military Aero Engines Ltd ($935M), 10. BAE Systems PLC ($554M).

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