Top 100 Contractors in NAICS 33451: Navigational, Measuring, Electromedical, and Control Instruments Manufacturing, FY2022

Name: Top 100 Contractors in NAICS 33451: Navigational, Measuring, Electromedical, and Control Instruments Manufacturing, FY2022
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2021 – Sep 30, 2022 Code page on GovTribe

The top 10 won 64% of FY2022 NAICS 33451 contract dollars

Contract obligations: $18,859,720,722 Net of deobligations, by contracts coded NAICS 33451 or a code under it
Contractors: 4,321 Parent companies with an obligation
Largest contractor: RTX Corporation $4.92 billion, 25.0% 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	RTX Corporation 58 awardees, including Raytheon Company and Rockwell Collins, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$4,915,379,270	25.0%	Rank history: #1 in FY2021, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since FY2021.
2	Lockheed Martin Corporation 27 awardees, including Lockheed Martin Sippican, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$3,388,105,182	17.3%	Rank history: #2 in FY2021, #2 in FY2023, #2 in FY2024 and #2 in FY2025; unchanged since FY2021.
3	Northrop Grumman Corporation 31 awardees, including Northrop Grumman Systems Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$1,676,259,105	8.5%	Rank history: #3 in FY2021, #3 in FY2023, #3 in FY2024 and #3 in FY2025; unchanged since FY2021.
4	L3Harris Technologies, Inc. 50 awardees, including L3 Technologies, Inc., L-3 Chesapeake Sciences Corporation and L3Harris Interstate Electronics Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$556,178,058	2.8%	Rank history: #4 in FY2021, #5 in FY2023, #8 in FY2024 and #5 in FY2025; unchanged since FY2021.
5	Tcom, L.P. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$446,695,462	2.3%	Rank history: #6 in FY2021 and not on the FY2023–FY2025 lists; up 1 since FY2021.
6	Leonardo S.p.A. 15 awardees, including Laurel Technologies Partnership, DRS Network & Imaging Systems LLC and DRS Sustainment Systems, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) MDA (DOD Missile Defense Agency)	$404,474,365	2.1%	Rank history: #7 in FY2021, #6 in FY2023, #5 in FY2024 and #6 in FY2025; up 1 since FY2021.
7	Erapsco Top agencies Navy (Department of the Navy)	$324,234,098	1.7%	Rank history: #8 in FY2021, #9 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2021.
8	BAE Systems PLC 15 awardees, including BAE Systems Information and Electronic Systems Integration Inc., BAE Systems Australia Limited and BAE Systems Technology Solutions & Services Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$322,197,348	1.6%	Rank history: #10 in FY2021, #8 in FY2023, #7 in FY2024 and #7 in FY2025; up 2 since FY2021.
9	General Atomic Technologies Corporation 3 awardees, including General Atomics Aeronautical Systems, Inc. Top agencies USAF (Department of the Air Force)	$302,765,342	1.5%	Rank history: #9 in FY2021, #12 in FY2023, #13 in FY2024 and not on the FY2025 list; unchanged since FY2021.
10	Siemens Aktiengesellschaft 9 awardees, including Siemens Medical Solutions Usa, Inc., Siemens Healthcare Diagnostics Inc. and Varian Medical Systems, Inc. Top agencies VA (Department of Veterans Affairs) DLA (Defense Logistics Agency) HHS (Department of Health and Human Services)	$291,237,125	1.5%	Rank history: #11 in FY2021, #10 in FY2023, #39 in FY2024 and not on the FY2025 list; up 1 since FY2021.
11	The Boeing Company 18 awardees, including Jeppesen Foreflight, Inc., Argon ST, Inc. and Liquid Robotics, Inc. Top agencies Navy (Department of the Navy) AAFES (Department of Defense Army and Air Force Exchange Service) Army (Department of the Army)	$199,845,876	1.0%	Rank history: #12 in FY2021, #4 in FY2023, #4 in FY2024 and #4 in FY2025; up 1 since FY2021.
12	General Dynamics Corporation 15 awardees, including General Dynamics Mission Systems, Inc., Electric Boat Corporation and General Dynamics-Ots, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$199,601,852	1.0%	Rank history: #17 in FY2021, #14 in FY2023, #10 in FY2024 and #8 in FY2025; up 5 since FY2021.
13	Leidos Holdings, Inc. 13 awardees, including Leidos, Inc., Dynetics, Inc. and Leidos Security Detection & Automation, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) DOT (Department of Transportation)	$192,158,490	1.0%	Rank history: #5 in FY2021, #11 in FY2023, #15 in FY2024 and #11 in FY2025; down 8 since FY2021.
14	Sonova Holding AG 3 awardees, including Sonova USA Inc. and Advanced Bionics, LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$182,590,900	0.9%	Rank history: #14 in FY2021, #13 in FY2023, #11 in FY2024 and not on the FY2025 list; unchanged since FY2021.
15	General Electric Company 10 awardees, including OEC Medical Systems, Inc., BK Medical Holding Company, Inc. and GE Medical Systems Information Technologies, Inc. Top agencies VA (Department of Veterans Affairs) DLA (Defense Logistics Agency) DOJ (Department of Justice)	$179,143,418	0.9%	Rank history: #18 in FY2021, #16 in FY2023, #16 in FY2024 and #19 in FY2025; up 3 since FY2021.
16	The Charles Stark Draper Laboratory, Inc. Top agencies Navy (Department of the Navy)	$161,059,197	0.8%	Rank history: #15 in FY2021, #17 in FY2023, #26 in FY2024 and #63 in FY2025; down 1 since FY2021.
17	SRC Inc. 2 awardees, including Srctec, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$158,206,527	0.8%	Rank history: #31 in FY2021, #7 in FY2023, #12 in FY2024 and #20 in FY2025; up 14 since FY2021.
18	Science Applications International Corporation 4 awardees, including Asrc Federal Facilities Logistics, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$151,213,099	0.8%	Rank history: #50 in FY2021, #23 in FY2023, #18 in FY2024 and not on the FY2025 list; up 32 since FY2021.
19	Koninklijke Philips N.V. 9 awardees, including Philips North America LLC, Philips Healthcare Informatics Inc. and Philips Medical Systems North America Inc. Top agencies VA (Department of Veterans Affairs) DLA (Defense Logistics Agency) HHS (Department of Health and Human Services)	$136,294,157	0.7%	Rank history: #19 in FY2021, #18 in FY2023, #42 in FY2024 and not on the FY2025 list; unchanged since FY2021.
20	Danaher Corporation 27 awardees, including Beckman Coulter, Inc., Cepheid and AB Sciex LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DOI (Department of the Interior)	$118,247,115	0.6%	Rank history: #16 in FY2021, #20 in FY2023, #30 in FY2024 and #49 in FY2025; down 4 since FY2021.
21	Honeywell International Inc. 24 awardees Top agencies USAF (Department of the Air Force) Army (Department of the Army) DLA (Defense Logistics Agency)	$118,116,770	0.6%	Rank history: #27 in FY2021, #15 in FY2023, #17 in FY2024 and #16 in FY2025; up 6 since FY2021.
22	Government of Canada Through Canadian Commercial Corporation Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$93,419,000	0.5%	Rank history: #25 in FY2021, #37 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2021.
23	Anduril Industries Inc. 2 awardees Top agencies USSOCOM (United States Special Operations Command)	$92,302,531	0.5%	Rank history: not on the FY2021 list, #21 in FY2023, #6 in FY2024 and #18 in FY2025; new.
24	Management Services Group, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$90,375,237	0.5%	Rank history: #44 in FY2021, #38 in FY2023, #33 in FY2024 and #36 in FY2025; up 20 since FY2021.
25	General Dynamics Mission Systems, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$90,024,635	0.5%	Rank history: #34 in FY2021, #31 in FY2023, #22 in FY2024 and not on the FY2025 list; up 9 since FY2021.
26	Georgia TECH Research Corp Through Georgia TECH Applied Research Corp Top agencies USAF (Department of the Air Force)	$89,972,882	0.5%	Rank history: not on the FY2021 list, #92 in FY2023 and not on the FY2024–FY2025 lists; new.
27	Teledyne Technologies Incorporated 24 awardees, including Teledyne Flir Unmanned Ground Systems, Inc., Teledyne Defense Electronics, LLC and Teledyne Brown Engineering, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$88,483,840	0.5%	Rank history: #47 in FY2021, #44 in FY2023, #40 in FY2024 and #23 in FY2025; up 20 since FY2021.
28	Roche Holding AG 4 awardees, including Roche Diagnostics Corporation, Roche Molecular Systems Inc. and Genmark Diagnostics, Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) Army (Department of the Army)	$86,602,225	0.4%	Rank history: #37 in FY2021, #35 in FY2023, #64 in FY2024 and not on the FY2025 list; up 9 since FY2021.
29	Smiths Group PLC 4 awardees, including Smiths Detection Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army) AOUSC (Administrative Office of the U.S. Courts)	$86,051,529	0.4%	Rank history: #26 in FY2021, #24 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2021.
30	Thermo Electron Corporation 19 awardees, including Life Technologies Corporation, Thermo Electron North America LLC and Thermo Scientific Portable Analytical Instruments Inc. Top agencies DOJ (Department of Justice) HHS (Department of Health and Human Services) Army (Department of the Army)	$84,162,601	0.4%	Rank history: #29 in FY2021, #28 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2021.
31	Ultra Electronics Forensic Technology Inc 7 awardees, including Ultra Electronics Ocean Systems Inc., Undersea Sensor Systems Inc. and Ultra PCS Limited Top agencies Navy (Department of the Navy) DFAS (Defense Finance and Accounting Service) Army (Department of the Army)	$82,784,755	0.4%	Rank history: #24 in FY2021, #22 in FY2023, #99 in FY2024 and not on the FY2025 list; down 7 since FY2021.
32	Sierra Nevada Company, LLC 2 awardees Top agencies USSOCOM (United States Special Operations Command) Navy (Department of the Navy) Army (Department of the Army)	$71,199,168	0.4%	Rank history: #22 in FY2021, #19 in FY2023, #19 in FY2024 and #13 in FY2025; down 10 since FY2021.
33	Analogic Corporation 2 awardees, including BK Medical Holding Company, Inc. Top agencies DHS (Department of Homeland Security) VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$67,461,276	0.3%	Rank history: #28 in FY2021, #66 in FY2023, #65 in FY2024 and not on the FY2025 list; down 5 since FY2021.
34	Abbott Laboratories 11 awardees, including ST. Jude Medical S.c., Inc., Abbott Rapid Diagnostics Informatics, Inc. and Alere Toxicology Services, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Army (Department of the Army)	$66,917,615	0.3%	Rank history: #30 in FY2021, #25 in FY2023, #36 in FY2024 and #29 in FY2025; down 4 since FY2021.
35	Saab AB 3 awardees, including Saab, Inc. and Saab Aktiebolag Top agencies Navy (Department of the Navy) DOT (Department of Transportation) DLA (Defense Logistics Agency)	$63,372,273	0.3%	Rank history: #45 in FY2021, not on the FY2023–FY2024 lists and #83 in FY2025; up 10 since FY2021.
36	Federal Resources Supply Company 3 awardees Top agencies DHS (Department of Homeland Security) Army (Department of the Army) USAF (Department of the Air Force)	$61,722,653	0.3%	Rank history: #40 in FY2021, #52 in FY2023, #44 in FY2024 and #53 in FY2025; up 4 since FY2021.
37	Starkey Laboratories Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$54,832,520	0.3%	Rank history: #35 in FY2021, #29 in FY2023, #38 in FY2024 and #33 in FY2025; down 2 since FY2021.
38	Sustainable System Solutions LLC Top agencies Army (Department of the Army)	$53,742,813	0.3%	Rank history: #32 in FY2021, #36 in FY2023, #67 in FY2024 and #78 in FY2025; down 6 since FY2021.
39	Trillamed LLC Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$53,260,433	0.3%	Rank history: #84 in FY2021, #68 in FY2023, #50 in FY2024 and not on the FY2025 list; up 45 since FY2021.
40	William Demants OG Hustru IDA Emilies (MILLAS) Fond - Kaldet 8 awardees, including Oticon, Inc., E3 Diagnostics, Inc. and Diagnostic Group LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$53,003,915	0.3%	Rank history: #57 in FY2021, #26 in FY2023, #82 in FY2024 and not on the FY2025 list; up 17 since FY2021.
41	Rockwell Collins-ESA Vision Systems Limited Liability Compan Through Collins Elbit Vision Systems, LLC Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$52,112,694	0.3%	Rank history: #41 in FY2021, #39 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2021.
42	Government Scientific Source Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$51,881,640	0.3%	Rank history: #42 in FY2021, #30 in FY2023, #43 in FY2024 and #44 in FY2025; unchanged since FY2021.
43	Textron Inc. 3 awardees, including Textron Systems Corporation, Textron Ground Support Equipment Inc. and Able Aerospace Services, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$47,697,736	0.2%	Rank history: #33 in FY2021, #27 in FY2023, #57 in FY2024 and #51 in FY2025; down 10 since FY2021.
44	Total Technology, Inc. Top agencies Army (Department of the Army)	$45,968,125	0.2%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #57 in FY2025; new.
45	Design West Technologies Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$45,361,488	0.2%	Rank history: #66 in FY2021, #70 in FY2023, #32 in FY2024 and #56 in FY2025; up 21 since FY2021.
46	Agilent Technologies, Inc. 9 awardees, including Agilent Technologies Japan, Ltd. and Biotek Instruments, Inc. Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) USDA (Department of Agriculture)	$40,849,750	0.2%	Rank history: #52 in FY2021, #41 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2021.
47	SAFRAN 8 awardees, including Safran Defense & Space, Inc., Woodward Canada, Inc. and Safran Electronics & Defense, Avionics Usa, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$36,359,195	0.2%	Rank history: #71 in FY2021, #53 in FY2023 and not on the FY2024–FY2025 lists; up 24 since FY2021.
48	OSI Systems Inc. 4 awardees, including Rapiscan Systems Inc., American Science & Engineering Inc. and Spacelabs Healthcare LLC Top agencies DOS (Department of State) DHS (Department of Homeland Security) Army (Department of the Army)	$34,942,882	0.2%	Rank history: #13 in FY2021, #51 in FY2023 and not on the FY2024–FY2025 lists; down 35 since FY2021.
49	Tevet LLC Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$33,028,441	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 382 since FY2021.
50	Vaisala OYJ 2 awardees, including Vaisala Inc. Top agencies DOT (Department of Transportation) Commerce (Department of Commerce) USAF (Department of the Air Force)	$32,148,354	0.2%	Rank history: #81 in FY2021, #56 in FY2023 and not on the FY2024–FY2025 lists; up 31 since FY2021.
51	Mountain Horse LLC Top agencies Army (Department of the Army) DFAS (Defense Finance and Accounting Service) DTRA (Defense Threat Reduction Agency)	$31,743,695	0.2%	Rank history: #88 in FY2021, #46 in FY2023, #48 in FY2024 and #88 in FY2025; up 37 since FY2021.
52	GN Store Nord A/S Through GN Hearing Care Corporation Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$30,748,523	0.2%	Rank history: #49 in FY2021, #43 in FY2023, #79 in FY2024 and not on the FY2025 list; down 3 since FY2021.
53	Hologic, Inc. 3 awardees, including Hologic Sales and Service, LLC Top agencies VA (Department of Veterans Affairs) DLA (Defense Logistics Agency) DHA (Defense Health Agency)	$29,886,132	0.2%	Rank history: #82 in FY2021, #72 in FY2023 and not on the FY2024–FY2025 lists; up 29 since FY2021.
54	Illumina, Inc. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) VA (Department of Veterans Affairs)	$29,443,345	0.1%	Rank history: #58 in FY2021, #49 in FY2023, #72 in FY2024 and #68 in FY2025; up 4 since FY2021.
55	Sysmex Corporation Through Sysmex America, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$26,813,197	0.1%	Rank history: #73 in FY2021, #55 in FY2023 and not on the FY2024–FY2025 lists; up 18 since FY2021.
56	Advanced Technology Systems Company, Inc. (OF Virginia) Top agencies Army (Department of the Army)	$26,796,369	0.1%	Rank history: #54 in FY2021, #80 in FY2023, #70 in FY2024 and not on the FY2025 list; down 2 since FY2021.
57	Sivantos Inc. 2 awardees, including WS Audiology Usa, Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$26,348,825	0.1%	Rank history: #87 in FY2021, #61 in FY2023 and not on the FY2024–FY2025 lists; up 30 since FY2021.
58	Inficon Holding AG Through Inficon Inc. Top agencies Army (Department of the Army) NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$25,901,811	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
59	Flir Systems Inc. 5 awardees, including Teledyne Flir Unmanned Ground Systems, Inc., 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)	$23,362,259	0.1%	Rank history: #21 in FY2021, #42 in FY2023, #86 in FY2024 and not on the FY2025 list; down 38 since FY2021.
60	Johnson & Johnson 6 awardees, including Ortho-Clinical Diagnostics, Inc., Biosense Webster, Inc. and Johnson & Johnson Health Care Systems Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$22,210,996	0.1%	Rank history: #75 in FY2021, #69 in FY2023 and not on the FY2024–FY2025 lists; up 15 since FY2021.
61	Westinghouse Electric Company LLC Through Westinghouse Government Services LLC Top agencies DOE (Department of Energy)	$21,946,768	0.1%	Rank history: #86 in FY2021, #96 in FY2023 and not on the FY2024–FY2025 lists; up 25 since FY2021.
62	Theodor Wille Intertrade GMBH Through Atlantic Diving Supply, Inc. Top agencies Army (Department of the Army) DFAS (Defense Finance and Accounting Service) DTRA (Defense Threat Reduction Agency)	$21,569,189	0.1%	Rank history: #89 in FY2021, #63 in FY2023 and not on the FY2024–FY2025 lists; up 27 since FY2021.
63	Ametek Inc. 26 awardees, including Spectro Scientific, Inc., Cameca Instruments, Inc. and Ametek Programmable Power, Inc. Top agencies USAF (Department of the Air Force) Commerce (Department of Commerce) Navy (Department of the Navy)	$20,214,751	0.1%	Rank history: #69 in FY2021, #99 in FY2023, not on the FY2024 list and #59 in FY2025; up 6 since FY2021.
64	Compagnie Merieux Alliance 4 awardees, including Biofire Diagnostics LLC, Biomerieux Inc. and Biofire Defense LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Army (Department of the Army)	$20,074,143	0.1%	Rank history: #61 in FY2021, #82 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2021.
65	Ball Corp 2 awardees, including BAE Systems Space & Mission Systems Inc. and Ball Aerospace & Technologies Corp. Top agencies Commerce (Department of Commerce) Navy (Department of the Navy) NASA (National Aeronautics and Space Administration)	$19,921,624	0.1%	Rank history: #46 in FY2021, #50 in FY2023 and not on the FY2024–FY2025 lists; down 19 since FY2021.
66	Elbit Systems Ltd 7 awardees, including Elbitamerica, Inc., Elbit Systems of America - Night Vision LLC and Universal Avionics Systems Corp Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$19,837,313	0.1%	Rank history: #55 in FY2021, #91 in FY2023, #27 in FY2024 and not on the FY2025 list; down 11 since FY2021.
67	Beyond Vision Inc. Top agencies Army (Department of the Army)	$19,483,294	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 78 since FY2021.
68	Mesa Biotech Inc. Top agencies HHS (Department of Health and Human Services)	$19,383,000	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
69	R. S. Means Company LLC 12 awardees, including Fluke Electronics Corp, Setra Systems, Inc. and R.s. Means Company LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$18,771,015	0.1%	Rank history: not on the FY2021 list, #71 in FY2023 and not on the FY2024–FY2025 lists; up 33 since FY2021.
70	Transdigm Group Incorporated 19 awardees, including Symetrics Industries, LLC, Armtec Countermeasures Co and Aerosonic LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$18,467,870	0.1%	Rank history: #70 in FY2021, #79 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2021.
71	Thales 5 awardees, including Thales Usa, Inc., Thales Defense & Security Inc. and Tampa Microwave, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DOT (Department of Transportation)	$18,439,322	0.1%	Rank history: #48 in FY2021, #73 in FY2023 and not on the FY2024–FY2025 lists; down 23 since FY2021.
72	BAE Systems Controls Inc. Top agencies USAF (Department of the Air Force)	$17,935,894	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
73	BAE Systems Technology Solutions & Services Inc. Top agencies USAF (Department of the Air Force)	$17,482,941	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 268 since FY2021.
74	Veterans Healthcare Supply Solutions, Inc. Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) Army (Department of the Army)	$17,243,773	0.1%	Rank history: #100 in FY2021, #83 in FY2023 and not on the FY2024–FY2025 lists; up 26 since FY2021.
75	Signet Technologies Inc. Top agencies AOUSC (Administrative Office of the U.S. Courts) DOJ (Department of Justice) DHS (Department of Homeland Security)	$17,074,536	0.1%	Rank history: #94 in FY2021 and not on the FY2023–FY2025 lists; up 19 since FY2021.
76	Franklin Young International, Incorporated Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$17,060,556	0.1%	Rank history: not on the FY2021 list, #93 in FY2023, #98 in FY2024 and not on the FY2025 list; up 25 since FY2021.
77	BAE Systems Information and Electronic Systems Integration Inc. Top agencies USAF (Department of the Air Force)	$16,852,462	0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #21 in FY2024 and not on the FY2025 list; new.
78	Rohde & Schwarz GMBH & Co. KG Through Rohde & Schwarz Usa, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$16,590,767	0.1%	Rank history: #90 in FY2021, #60 in FY2023, #92 in FY2024 and #55 in FY2025; up 12 since FY2021.
79	HII Unmanned Systems, Inc. 2 awardees Top agencies Navy (Department of the Navy) Commerce (Department of Commerce)	$16,493,975	0.1%	Rank history: #63 in FY2021, #74 in FY2023, #46 in FY2024 and not on the FY2025 list; down 16 since FY2021.
80	Teradyne Inc. 3 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$16,010,908	0.1%	Rank history: not on the FY2021 list, #75 in FY2023, #78 in FY2024 and #43 in FY2025; up 25 since FY2021.
81	Olympus America Inc 5 awardees, including Wabtec Inspection Technologies, Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) Navy (Department of the Navy)	$15,614,090	0.1%	Rank history: #56 in FY2021 and not on the FY2023–FY2025 lists; down 25 since FY2021.
82	Moog Inc. 5 awardees, including Moog Military Aircraft LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$15,452,878	0.1%	Rank history: #53 in FY2021, #87 in FY2023 and not on the FY2024–FY2025 lists; down 29 since FY2021.
83	Agfa Healthcare Corporation 2 awardees, including Agfa US Corp Top agencies VA (Department of Veterans Affairs) DLA (Defense Logistics Agency) DHA (Defense Health Agency)	$15,423,389	0.1%	Rank history: #76 in FY2021, #67 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2021.
84	King Nutronics Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$15,417,021	0.1%	Rank history: #92 in FY2021 and not on the FY2023–FY2025 lists; up 8 since FY2021.
85	Fedpoint Systems LLC Top agencies HHS (Department of Health and Human Services) EPA (Environmental Protection Agency) DOI (Department of the Interior)	$15,118,483	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 38 since FY2021.
86	Scitech Services Inc. Top agencies Army (Department of the Army) DTRA (Defense Threat Reduction Agency) DFAS (Defense Finance and Accounting Service)	$14,961,450	0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #69 in FY2025; new.
87	Intergraph Corporation 3 awardees, including Hexagon US Federal, Inc., Hexagon Manufacturing Intelligence, LLC and Leica Geosystems Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$14,920,546	0.1%	Rank history: #96 in FY2021, #48 in FY2023 and not on the FY2024–FY2025 lists; up 9 since FY2021.
88	ADL Diagnostics, Inc. Top agencies HHS (Department of Health and Human Services)	$14,900,000	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
89	Waters Corporation 3 awardees, including Waters Technologies Corporation and Ta Instruments - Waters L.L.C. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) Army (Department of the Army)	$14,748,774	0.1%	Rank history: not on the FY2021 list, #78 in FY2023 and not on the FY2024–FY2025 lists; up 14 since FY2021.
90	Qinetiq Group PLC Through Foster-Miller, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$14,745,214	0.1%	Rank history: #38 in FY2021 and not on the FY2023–FY2025 lists; down 52 since FY2021.
91	Viewray, Inc. Top agencies VA (Department of Veterans Affairs)	$14,626,207	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
92	Alliant Enterprises, LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$14,366,581	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 40 since FY2021.
93	Elbit Systems C4I and Cyber Top agencies Navy (Department of the Navy)	$14,110,606	0.1%	Rank history: not on the FY2021 list, #88 in FY2023 and not on the FY2024–FY2025 lists; up 40 since FY2021.
94	Novetta Solutions, LLC Through Accenture Federal Services LLC Top agencies DOJ (Department of Justice)	$13,993,310	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
95	L3Harris Interstate Electronics Corporation Top agencies USAF (Department of the Air Force)	$13,523,959	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 44 since FY2021.
96	Logisys Technical Services Inc. Top agencies Army (Department of the Army)	$13,473,886	0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #84 in FY2024 and not on the FY2025 list; new.
97	Gibbs & Cox, Inc. Top agencies Navy (Department of the Navy)	$13,317,322	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
98	Technical Communities, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$12,865,697	0.1%	Rank history: #43 in FY2021 and not on the FY2023–FY2025 lists; down 55 since FY2021.
99	Systems Engineering Support Co. Top agencies Navy (Department of the Navy)	$12,865,189	0.1%	Rank history: not on the FY2021 list, #95 in FY2023, not on the FY2024 list and #71 in FY2025; new.
100	Keysight Technologies, Inc. 2 awardees Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$11,846,335	0.1%	Rank history: #97 in FY2021, #65 in FY2023, #76 in FY2024 and not on the FY2025 list; down 3 since FY2021.

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100 of 4,321 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 33451

Code	Net obligations	Largest contractor
334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing	$14,939,418,286	RTX Corporation
334516 Analytical Laboratory Instrument Manufacturing	$1,148,038,612	Danaher Corporation
334519 Other Measuring and Controlling Device Manufacturing	$779,073,872	Lockheed Martin Corporation
334517 Irradiation Apparatus Manufacturing	$701,589,286	Siemens Aktiengesellschaft
334510 Electromedical and Electrotherapeutic Apparatus Manufacturing	$632,322,569	Sonova Holding AG
334515 Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals	$385,389,230	Total Technology, Inc.
334513 Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables	$185,345,586	Lockheed Martin Corporation
334512 Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use	$47,672,496	Signet Technologies Inc.
334514 Totalizing Fluid Meter and Counting Device Manufacturing	$40,870,784	Guerrero Professional Services, Inc.

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 $19.6 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 2022 ran Oct 1, 2021 – Sep 30, 2022. 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 FY2021. "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 FY2021 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 33451 contractors in FY2022?

1. RTX Corporation ($4.92B), 2. Lockheed Martin Corporation ($3.39B), 3. Northrop Grumman Corporation ($1.68B), 4. L3Harris Technologies, Inc. ($556M), 5. Tcom, L.P. ($447M), 6. Leonardo S.p.A. ($404M), 7. Erapsco ($324M), 8. BAE Systems PLC ($322M), 9. General Atomic Technologies Corporation ($303M), 10. Siemens Aktiengesellschaft ($291M).

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