Top 100 Contractors in NAICS 3333: Commercial and Service Industry Machinery Manufacturing, FY2021

Name: Top 100 Contractors in NAICS 3333: Commercial and Service Industry Machinery Manufacturing, FY2021
Creator: GovTribe

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

The top 10 won 64% of FY2021 NAICS 3333 contract dollars

Contract obligations: $1,902,095,139 Net of deobligations, by contracts coded NAICS 3333 or a code under it
Contractors: 1,629 Parent companies with an obligation
Largest contractor: The Boeing Company $218 million, 10.9% 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	The Boeing Company 4 awardees Top agencies Navy (Department of the Navy)	$217,935,212	10.9%	Rank history: #3 in FY2022, #4 in FY2023, #5 in FY2024 and #1 in FY2025; up 9 since FY2020.
2	RTX Corporation 15 awardees, including Rockwell Collins Simulation & Training Solutions LLC, Raytheon Company and Rockwell Collins, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$215,679,439	10.8%	Rank history: #6 in FY2022, #1 in FY2023, #2 in FY2024 and #5 in FY2025; up 2 since FY2020.
3	L3Harris Technologies, Inc. 14 awardees, including L3 Technologies, Inc., Harris Corporation and CAE USA Inc. Top agencies Navy (Department of the Navy) NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$208,653,230	10.5%	Rank history: #1 in FY2022, #2 in FY2023, #1 in FY2024 and #2 in FY2025; down 2 since FY2020.
4	General Dynamics Corporation 9 awardees, including General Dynamics Mission Systems, Inc., General Dynamics Information Technology, Inc. and General Dynamics One Source LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$150,029,404	7.5%	Rank history: #2 in FY2022, #5 in FY2023, #9 in FY2024 and #7 in FY2025; down 2 since FY2020.
5	Lockheed Martin Corporation 7 awardees, including Lockheed Martin Global, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$131,147,242	6.6%	Rank history: #16 in FY2022, #16 in FY2023, #15 in FY2024 and #25 in FY2025; up 4 since FY2020.
6	Leonardo S.p.A. 5 awardees, including DRS Network & Imaging Systems, LLC, Laurel Technologies Partnership and Daylight Solutions Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) USSOCOM (United States Special Operations Command)	$129,269,789	6.5%	Rank history: #4 in FY2022, #3 in FY2023, #4 in FY2024 and #4 in FY2025; down 3 since FY2020.
7	Theodor Wille Intertrade GMBH Through Atlantic Diving Supply, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$58,087,649	2.9%	Rank history: #8 in FY2022, #11 in FY2023, #31 in FY2024 and not on the FY2025 list; unchanged since FY2020.
8	Logistic Services International, Inc. Top agencies Army (Department of the Army)	$56,039,470	2.8%	Rank history: #19 in FY2022, #10 in FY2023, #36 in FY2024 and #8 in FY2025; up 13 since FY2020.
9	Scientific Research Corporation Top agencies Army (Department of the Army) USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$52,873,372	2.7%	Rank history: #18 in FY2022 and not on the FY2023–FY2025 lists; down 3 since FY2020.
10	Association of Universities for Research In Astronomy, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$51,393,665	2.6%	Rank history: #7 in FY2022, #6 in FY2023, #8 in FY2024 and #6 in FY2025; down 5 since FY2020.
11	Xerox Holdings Corp 6 awardees, including Xerox Corporation Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) DOJ (Department of Justice)	$40,138,426	2.0%	Rank history: #10 in FY2022, #9 in FY2023, #24 in FY2024 and not on the FY2025 list; up 3 since FY2020.
12	Elbit Systems Ltd 3 awardees, including Elbit Systems of America - Night Vision LLC and Elbitamerica, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$30,461,307	1.5%	Rank history: #5 in FY2022, #7 in FY2023, #3 in FY2024 and not on the FY2025 list; up 1 since FY2020.
13	Xebec Government Services, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$27,037,658	1.4%	Rank history: #67 in FY2022, #43 in FY2023, #71 in FY2024 and #36 in FY2025; up 76 since FY2020.
14	Trijicon, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$25,285,048	1.3%	Rank history: #48 in FY2022, #8 in FY2023, #16 in FY2024 and #24 in FY2025; down 3 since FY2020.
15	National Industries for the Blind Top agencies GSA (General Services Administration)	$20,056,521	1.0%	Rank history: #76 in FY2022 and not on the FY2023–FY2025 lists; up 2 since FY2020.
16	By Light Professional It Services LLC 2 awardees, including Cole Engineering Services, Inc. Top agencies Army (Department of the Army)	$15,313,755	0.8%	Rank history: #15 in FY2022, not on the FY2023 list, #23 in FY2024 and #26 in FY2025; up 24 since FY2020.
17	Arotech Corporation 2 awardees, including Inter-Coastal Electronics, LLC and Faac Incorporated Top agencies Army (Department of the Army) USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$15,103,674	0.8%	Rank history: #65 in FY2022 and not on the FY2023–FY2025 lists; up 5 since FY2020.
18	Quality Associates Inc. 4 awardees, including Konica Minolta Business Solutions U.s.a, Inc., Specim, Spectral Imaging OY Ltd and Konica Minolta Sensing Americas Inc. Top agencies DLA (Defense Logistics Agency) SSA (Social Security Administration) DHS (Department of Homeland Security)	$15,001,735	0.8%	Rank history: #22 in FY2022, #26 in FY2023, #40 in FY2024 and not on the FY2025 list; up 5 since FY2020.
19	Northrop Grumman Corporation 5 awardees, including Northrop Grumman Systems Corporation Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$14,634,307	0.7%	Rank history: #14 in FY2022, #14 in FY2023, #12 in FY2024 and #21 in FY2025; up 1 since FY2020.
20	Purchinex LLC Top agencies VA (Department of Veterans Affairs)	$10,995,370	0.6%	Rank history: not on the FY2022–FY2023 lists, #44 in FY2024 and #71 in FY2025; up 6 since FY2020.
21	Gill Group Inc. Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$10,207,817	0.5%	Rank history: #21 in FY2022, #25 in FY2023 and not on the FY2024–FY2025 lists; up 45 since FY2020.
22	Flir Systems Inc. 5 awardees, including Teledyne Flir Defense, Inc. and Teledyne Flir Commercial Systems, Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security) Navy (Department of the Navy)	$8,939,653	0.4%	Rank history: #9 in FY2022, #15 in FY2023, #62 in FY2024 and not on the FY2025 list; up 13 since FY2020.
23	Lightforce Usa, Incorporated Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$8,424,915	0.4%	Rank history: #37 in FY2022, #48 in FY2023, #46 in FY2024 and #65 in FY2025; up 4 since FY2020.
24	Rockwell Collins, Inc. Top agencies Navy (Department of the Navy)	$8,175,478	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
25	LC Industries Inc. Top agencies GSA (General Services Administration)	$8,067,747	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
26	Katadyn Desalination, LLC Top agencies Navy (Department of the Navy)	$7,857,816	0.4%	Rank history: not on the FY2022–FY2023 lists, #91 in FY2024 and not on the FY2025 list; up 102 since FY2020.
27	Ricoh Company,Ltd. 3 awardees, including Ricoh USA Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) DLA (Defense Logistics Agency)	$7,209,385	0.4%	Rank history: #54 in FY2022, #39 in FY2023, #38 in FY2024 and #44 in FY2025; up 30 since FY2020.
28	Seiler Instrument and Manufacturing Company, Incorporated Top agencies Army (Department of the Army)	$6,976,702	0.4%	Rank history: #29 in FY2022, #21 in FY2023, #19 in FY2024 and #17 in FY2025; up 11 since FY2020.
29	Jardon & Howard Technologies LLC Top agencies Navy (Department of the Navy)	$6,676,998	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
30	Cymstar LLC Top agencies Navy (Department of the Navy)	$6,193,149	0.3%	Rank history: not on the FY2022–FY2023 lists, #25 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
31	Nikon Corporation 2 awardees, including Nikon Instruments Inc. and Nikon Metrology, LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) EPA (Environmental Protection Agency)	$5,938,874	0.3%	Rank history: #39 in FY2022, #69 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2020.
32	Danaher Corporation 3 awardees, including Leica Microsystems Inc., Pall Aeropower Corporation and Trojan Technologies Group ULC Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice) VA (Department of Veterans Affairs)	$5,904,742	0.3%	Rank history: #45 in FY2022 and not on the FY2023–FY2025 lists; up 22 since FY2020.
33	Wilcox Industries Corp. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$5,771,166	0.3%	Rank history: #30 in FY2022, #22 in FY2023, #21 in FY2024 and #14 in FY2025; new, not ranked in FY2020.
34	Phillips Corporation Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$5,615,824	0.3%	Rank history: #70 in FY2022, #24 in FY2023, #39 in FY2024 and #34 in FY2025; up 40 since FY2020.
35	CAE Inc. Through CAE USA Inc. Top agencies Navy (Department of the Navy)	$5,066,961	0.3%	Rank history: #11 in FY2022, #33 in FY2023, #43 in FY2024 and #63 in FY2025; up 8 since FY2020.
36	Rafael Advanced Defense Systems Ltd. Top agencies Navy (Department of the Navy)	$4,815,993	0.2%	Rank history: not on the FY2022–FY2025 lists; up 41 since FY2020.
37	Aladdin Temp-Rite LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$4,760,091	0.2%	Rank history: not on the FY2022–FY2025 lists; up 210 since FY2020.
38	Advanced Systems Technology Inc. Top agencies Army (Department of the Army)	$4,546,284	0.2%	Rank history: not on the FY2022–FY2025 lists; down 22 since FY2020.
39	Meggitt PLC Through Inveris Training Solutions, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) GSA (General Services Administration)	$4,542,801	0.2%	Rank history: #33 in FY2022, #49 in FY2023, #34 in FY2024 and not on the FY2025 list; down 7 since FY2020.
40	Carl Zeiss X-RAY Microscopy Inc. Through Carl Zeiss Microscopy, LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$4,531,688	0.2%	Rank history: #36 in FY2022, #61 in FY2023, #98 in FY2024 and not on the FY2025 list; up 9 since FY2020.
41	Parker-Hannifin Corporation 2 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$4,263,566	0.2%	Rank history: not on the FY2022–FY2025 lists; up 113 since FY2020.
42	Pro-Active Technologies, Inc. Top agencies Navy (Department of the Navy)	$4,198,462	0.2%	Rank history: not on the FY2022 list, #86 in FY2023 and not on the FY2024–FY2025 lists; up 75 since FY2020.
43	Thales Through Thales Defense & Security Inc. Top agencies Navy (Department of the Navy)	$4,126,421	0.2%	Rank history: #23 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
44	Supplycore LLC Top agencies DLA (Defense Logistics Agency)	$3,863,293	0.2%	Rank history: #31 in FY2022, #28 in FY2023, #33 in FY2024 and #37 in FY2025; new, not ranked in FY2020.
45	Gentex Corporation Top agencies Navy (Department of the Navy)	$3,800,501	0.2%	Rank history: not on the FY2022–FY2025 lists; up 48 since FY2020.
46	Melling LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$3,615,445	0.2%	Rank history: #63 in FY2022 and not on the FY2023–FY2025 lists; up 172 since FY2020.
47	Aqua-Chem, Inc. Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$3,607,640	0.2%	Rank history: not on the FY2022–FY2025 lists; down 1 since FY2020.
48	Cantel Medical Corp. Through Evoqua Water Technologies LLC Top agencies VA (Department of Veterans Affairs)	$3,507,889	0.2%	Rank history: not on the FY2022–FY2025 lists; up 42 since FY2020.
49	Noble Sales Co. Inc. 2 awardees, including Noble Supply & Logistics, LLC and Tactical & Survival Specialties, LLC Top agencies DLA (Defense Logistics Agency)	$3,471,488	0.2%	Rank history: #32 in FY2022, not on the FY2023 list, #27 in FY2024 and #27 in FY2025; new, not ranked in FY2020.
50	Lexmark International Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security) SSA (Social Security Administration)	$3,314,105	0.2%	Rank history: #59 in FY2022, #66 in FY2023, #67 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
51	Cubic Digital Intelligence Inc. Through Cubic Defense Applications, Inc. Top agencies Army (Department of the Army)	$3,258,722	0.2%	Rank history: #28 in FY2022, #12 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
52	Dietary Equipment Incorporated Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$3,214,591	0.2%	Rank history: #94 in FY2022, not on the FY2023–FY2024 lists and #78 in FY2025; new, not ranked in FY2020.
53	ZEL TECH Training Solutions, LLC Top agencies Army (Department of the Army)	$3,166,272	0.2%	Rank history: #58 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
54	Optex Systems Inc. 2 awardees Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$3,128,531	0.2%	Rank history: #44 in FY2022, #34 in FY2023, #35 in FY2024 and #77 in FY2025; up 25 since FY2020.
55	Tactical & Survival Specialties, LLC Top agencies DLA (Defense Logistics Agency)	$2,971,262	0.1%	Rank history: not on the FY2022–FY2025 lists; down 25 since FY2020.
56	Enviremedial Services, Inc. Top agencies Army (Department of the Army)	$2,764,356	0.1%	Rank history: #88 in FY2022, #52 in FY2023, #48 in FY2024 and #60 in FY2025; new, not ranked in FY2020.
57	Integrated Procurement Technologies Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,759,277	0.1%	Rank history: #81 in FY2022 and not on the FY2023–FY2025 lists; down 10 since FY2020.
58	Ametek Inc. 4 awardees, including Vision Research, Inc., Zygo Corporation and Ametek SCP Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$2,703,093	0.1%	Rank history: #43 in FY2022, #45 in FY2023, #66 in FY2024 and not on the FY2025 list; up 98 since FY2020.
59	SAFRAN 3 awardees, including Safran Defense & Space, Inc., Air Cruisers Company, LLC and Safran Electrical Components Canada Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$2,699,182	0.1%	Rank history: #47 in FY2022 and not on the FY2023–FY2025 lists; up 10 since FY2020.
60	American Technology Network, Corp Top agencies Army (Department of the Army) DOJ (Department of Justice)	$2,675,700	0.1%	Rank history: not on the FY2022–FY2025 lists; up 305 since FY2020.
61	Oshkosh Corp 4 awardees, including Oshkosh Defense LLC, Oshkosh Airport Products LLC and Pierce Manufacturing Inc. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$2,654,092	0.1%	Rank history: not on the FY2022–FY2025 lists; down 24 since FY2020.
62	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$2,541,690	0.1%	Rank history: not on the FY2022 list, #57 in FY2023, #81 in FY2024 and #70 in FY2025; up 40 since FY2020.
63	BCF Solutions, Inc. Top agencies Army (Department of the Army)	$2,407,153	0.1%	Rank history: not on the FY2022 list, #30 in FY2023, not on the FY2024 list and #43 in FY2025; up 49 since FY2020.
64	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,357,202	0.1%	Rank history: #53 in FY2022, #100 in FY2023, #82 in FY2024 and not on the FY2025 list; up 157 since FY2020.
65	W S Darley & Co Top agencies DLA (Defense Logistics Agency)	$2,355,477	0.1%	Rank history: #73 in FY2022, #72 in FY2023, #42 in FY2024 and #18 in FY2025; up 55 since FY2020.
66	Ruta Supplies Inc. Top agencies DLA (Defense Logistics Agency)	$2,312,647	0.1%	Rank history: not on the FY2022–FY2025 lists; up 348 since FY2020.
67	Waygate Technologies USA LP Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$2,294,306	0.1%	Rank history: #57 in FY2022, #98 in FY2023 and not on the FY2024–FY2025 lists; up 68 since FY2020.
68	Teledyne Technologies Incorporated 5 awardees, including Teledyne Flir Defense, Inc., Teledyne Flir Commercial Systems Inc. and Teledyne Digital Imaging US, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) DHS (Department of Homeland Security)	$2,176,637	0.1%	Rank history: #20 in FY2022 and not on the FY2023–FY2025 lists; up 204 since FY2020.
69	PVP Advanced EO Systems, Inc. Top agencies DOT (Department of Transportation) Navy (Department of the Navy) USAF (Department of the Air Force)	$2,175,829	0.1%	Rank history: #80 in FY2022 and not on the FY2023–FY2025 lists; up 109 since FY2020.
70	Ameritel Communications Corporation Top agencies USDA (Department of Agriculture) DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$2,124,276	0.1%	Rank history: #95 in FY2022, #74 in FY2023, #76 in FY2024 and #61 in FY2025; down 10 since FY2020.
71	Aish Technologies Ltd Through Hoffman Engineering, LLC Top agencies USSOCOM (United States Special Operations Command) Navy (Department of the Navy) USAF (Department of the Air Force)	$2,118,510	0.1%	Rank history: not on the FY2022–FY2025 lists; up 127 since FY2020.
72	Canon Inc. 2 awardees, including Canon U.s.a., Inc. Top agencies DOJ (Department of Justice) GSA (General Services Administration) USDA (Department of Agriculture)	$2,110,281	0.1%	Rank history: #74 in FY2022, #36 in FY2023, #64 in FY2024 and not on the FY2025 list; up 4 since FY2020.
73	Alliant Enterprises, LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) Navy (Department of the Navy)	$2,074,090	0.1%	Rank history: not on the FY2022–FY2025 lists; up 8 since FY2020.
74	Telops Inc. Top agencies Army (Department of the Army) NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$2,060,930	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
75	Disc-O-Bed LP Top agencies Army (Department of the Army)	$1,983,101	0.1%	Rank history: not on the FY2022–FY2025 lists; up 30 since FY2020.
76	Mississippi Welders Supply Company, Inc. Top agencies USAF (Department of the Air Force)	$1,916,002	0.1%	Rank history: #82 in FY2022 and not on the FY2023–FY2025 lists; up 50 since FY2020.
77	Brighton Cromwell LLC Top agencies DLA (Defense Logistics Agency)	$1,825,317	0.1%	Rank history: not on the FY2022–FY2025 lists; up 8 since FY2020.
78	Veterans Healthcare Supply Solutions, Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) HHS (Department of Health and Human Services)	$1,807,779	0.1%	Rank history: not on the FY2022–FY2025 lists; down 26 since FY2020.
79	Meisystem Inc. Top agencies VA (Department of Veterans Affairs)	$1,773,548	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
80	Federal Resources Supply Company Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$1,763,056	0.1%	Rank history: not on the FY2022–FY2025 lists; down 62 since FY2020.
81	Shen TE Enterprises, Inc. Top agencies Navy (Department of the Navy)	$1,717,962	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
82	Deutsche Post AG Through DHL International B.s.c. Top agencies Navy (Department of the Navy)	$1,712,250	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
83	Konica Minolta Business Solutions U.s.a, Inc. Top agencies SSA (Social Security Administration) HHS (Department of Health and Human Services) DLA (Defense Logistics Agency)	$1,699,609	0.1%	Rank history: not on the FY2022–FY2024 lists and #47 in FY2025; up 15 since FY2020.
84	Tribalco LLC Top agencies USAF (Department of the Air Force)	$1,620,410	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
85	Auctane, Inc. Top agencies Army (Department of the Army) DOL (Department of Labor) DOJ (Department of Justice)	$1,613,730	0.1%	Rank history: #98 in FY2022 and not on the FY2023–FY2025 lists; up 15 since FY2020.
86	Eotech, LLC Top agencies Army (Department of the Army)	$1,496,412	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
87	Custom Sales & Service, Inc. Top agencies DLA (Defense Logistics Agency)	$1,440,023	0.1%	Rank history: #61 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
88	Proaim Americas, Llc. Top agencies Navy (Department of the Navy) VA (Department of Veterans Affairs)	$1,437,196	0.1%	Rank history: #46 in FY2022 and not on the FY2023–FY2025 lists; up 6 since FY2020.
89	Steris Corporation 2 awardees, including Evoqua Water Technologies LLC Top agencies VA (Department of Veterans Affairs)	$1,434,554	0.1%	Rank history: #69 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
90	Snap-On Incorporated Through Idsc Holdings LLC Top agencies DLA (Defense Logistics Agency)	$1,424,625	0.1%	Rank history: not on the FY2022–FY2025 lists; down 26 since FY2020.
91	Carson Industries, Inc. Top agencies DLA (Defense Logistics Agency)	$1,414,958	0.1%	Rank history: #38 in FY2022, #42 in FY2023, #57 in FY2024 and #22 in FY2025; down 60 since FY2020.
92	Alion Science and Technology Corporation Through HII Mission Technologies Corp Top agencies Navy (Department of the Navy)	$1,351,613	0.1%	Rank history: #52 in FY2022, #19 in FY2023 and not on the FY2024–FY2025 lists; up 123 since FY2020.
93	Polar King International, Inc. Top agencies DOJ (Department of Justice) Navy (Department of the Navy) USDA (Department of Agriculture)	$1,335,850	0.1%	Rank history: not on the FY2022–FY2023 lists, #86 in FY2024 and #90 in FY2025; up 86 since FY2020.
94	ARI Phoenix Inc. Top agencies Army (Department of the Army)	$1,332,240	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
95	The Edro Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,314,333	0.1%	Rank history: #77 in FY2022, #58 in FY2023, not on the FY2024 list and #50 in FY2025; up 27 since FY2020.
96	Zistos Corporation Top agencies DLA (Defense Logistics Agency) DOJ (Department of Justice)	$1,307,260	0.1%	Rank history: #79 in FY2022, not on the FY2023 list, #100 in FY2024 and not on the FY2025 list; up 12 since FY2020.
97	Switlik Parachute Company, Inc. Top agencies DLA (Defense Logistics Agency)	$1,302,843	0.1%	Rank history: not on the FY2022–FY2025 lists; up 168 since FY2020.
98	Kratos Defense & Security Solutions, Inc. Through Kratos Technology & Training Solutions, Inc. Top agencies Navy (Department of the Navy)	$1,297,574	0.1%	Rank history: #34 in FY2022, #18 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
99	Caracal Enterprises, LLC Top agencies Army (Department of the Army)	$1,292,497	0.1%	Rank history: not on the FY2022–FY2025 lists; up 158 since FY2020.
100	Highland Engineering, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$1,273,028	0.1%	Rank history: not on the FY2022 list, #20 in FY2023 and not on the FY2024–FY2025 lists; down 50 since FY2020.

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100 of 1,629 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 3333

Code	Net obligations	Largest contractor
33331 Commercial and Service Industry Machinery Manufacturing	$1,902,095,139	The Boeing Company
333318 Other Commercial and Service Industry Machinery Manufacturing	$1,060,663,306	The Boeing Company
333314 Optical Instrument and Lens Manufacturing	$633,912,937	L3Harris Technologies, Inc.
333316 Photographic and Photocopying Equipment Manufacturing	$131,882,447	Xerox Holdings Corp

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 $1.99 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 3333 contractors in FY2021?

1. The Boeing Company ($218M), 2. RTX Corporation ($216M), 3. L3Harris Technologies, Inc. ($209M), 4. General Dynamics Corporation ($150M), 5. Lockheed Martin Corporation ($131M), 6. Leonardo S.p.A. ($129M), 7. Theodor Wille Intertrade GMBH ($58.1M), 8. Logistic Services International, Inc. ($56M), 9. Scientific Research Corporation ($52.9M), 10. Association of Universities for Research In Astronomy, Inc. ($51.4M).

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