Top 100 Contractors in PSC 66: Instruments and Laboratory Equipment, FY2021

Name: Top 100 Contractors in PSC 66: Instruments and Laboratory Equipment, FY2021
Creator: GovTribe

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

The top 10 won 48% of FY2021 PSC 66 contract dollars

Contract obligations: $6,644,986,643 Net of deobligations, by contracts coded PSC 66 or a code under it
Contractors: 4,343 Parent companies with an obligation
Largest contractor: Abbott Laboratories $1.57 billion, 22.9% 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	Abbott Laboratories 8 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) DHS (Department of Homeland Security)	$1,565,050,699	22.9%	Rank history: #2 in FY2022, #16 in FY2023, #10 in FY2024 and #6 in FY2025; up 1 since FY2020.
2	Airboss of America Corp Through Airboss Defense Group, LLC Top agencies HHS (Department of Health and Human Services)	$288,105,984	4.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
3	OSI Systems Inc. 2 awardees, including Rapiscan Systems Inc. and American Science & Engineering Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) NRC (Nuclear Regulatory Commission)	$214,582,858	3.1%	Rank history: #54 in FY2022, #34 in FY2023 and not on the FY2024–FY2025 lists; up 23 since FY2020.
4	Lockheed Martin Corporation 16 awardees, including Lockheed Martin Sippican, Inc., Sikorsky Aircraft Corporation and Derco Aerospace, Inc. Top agencies Navy (Department of the Navy) Commerce (Department of Commerce) DLA (Defense Logistics Agency)	$188,031,669	2.8%	Rank history: #5 in FY2022, #3 in FY2023, #1 in FY2024 and #2 in FY2025; up 7 since FY2020.
5	Danaher Corporation 24 awardees, including Cepheid, Beckman Coulter, Inc. and OTT Hydromet Corp Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$185,621,869	2.7%	Rank history: #3 in FY2022, #6 in FY2023, #4 in FY2024 and #15 in FY2025; down 2 since FY2020.
6	Thermo Electron Corporation 29 awardees, including Remel Inc., Fisher Scientific Company L.L.C. and Life Technologies Corporation Top agencies HHS (Department of Health and Human Services) DLA (Defense Logistics Agency) DOJ (Department of Justice)	$175,782,878	2.6%	Rank history: #8 in FY2022, #9 in FY2023, #92 in FY2024 and not on the FY2025 list; down 5 since FY2020.
7	Orasure Technologies Inc. 2 awardees, including DNA Genotek Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$165,458,173	2.4%	Rank history: #4 in FY2022, #19 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
8	Leidos Holdings, Inc. 6 awardees, including Leidos, Inc. Top agencies DHS (Department of Homeland Security) DOS (Department of State) DLA (Defense Logistics Agency)	$163,769,176	2.4%	Rank history: #36 in FY2022, #27 in FY2023, not on the FY2024 list and #18 in FY2025; up 39 since FY2020.
9	Abbott Rapid DX North America LLC Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$158,318,146	2.3%	Rank history: not on the FY2022–FY2025 lists; up 250 since FY2020.
10	RTX Corporation 33 awardees, including Raytheon Company, Rockwell Collins, Inc. and Rosemount Aerospace Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$137,600,937	2.0%	Rank history: #6 in FY2022, #2 in FY2023, #3 in FY2024 and #9 in FY2025; unchanged since FY2020.
11	Northrop Grumman Corporation 23 awardees, including Northrop Grumman Systems Corp, Alliant Techsystems Operations LLC and Northrop Grumman Italia S.p.a Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$133,304,097	2.0%	Rank history: #12 in FY2022, #7 in FY2023, #8 in FY2024 and #10 in FY2025; down 3 since FY2020.
12	L3Harris Technologies, Inc. 30 awardees, including L3Harris Interstate Electronics Corporation, Acron Aviation, Inc. and Wescam Usa, Inc. Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force) Army (Department of the Army)	$128,377,792	1.9%	Rank history: #7 in FY2022, #8 in FY2023, #6 in FY2024 and #8 in FY2025; down 6 since FY2020.
13	Flir Systems Inc. 5 awardees, including Teledyne Flir Unmanned Ground Systems, Inc., Teledyne Flir Commercial Systems Inc. and Teledyne Flir Defense, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration)	$127,777,636	1.9%	Rank history: #79 in FY2022, #26 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2020.
14	Hologic, Inc. 2 awardees, including Hologic Sales and Service, LLC Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs) DLA (Defense Logistics Agency)	$125,180,647	1.8%	Rank history: #98 in FY2022 and not on the FY2023–FY2025 lists; up 48 since FY2020.
15	Government Scientific Source Inc. Top agencies DLA (Defense Logistics Agency) HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$100,918,757	1.5%	Rank history: #9 in FY2022, #10 in FY2023, #5 in FY2024 and #3 in FY2025; down 8 since FY2020.
16	Southwest Research Institute Top agencies NASA (National Aeronautics and Space Administration) Commerce (Department of Commerce)	$94,300,335	1.4%	Rank history: #84 in FY2022, not on the FY2023–FY2024 lists and #27 in FY2025; down 2 since FY2020.
17	Sustainable System Solutions LLC Top agencies Army (Department of the Army)	$84,234,669	1.2%	Rank history: #14 in FY2022, #23 in FY2023, #29 in FY2024 and #49 in FY2025; up 18 since FY2020.
18	Quidel Corp Top agencies DLA (Defense Logistics Agency) HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$79,954,491	1.2%	Rank history: #1 in FY2022, #12 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
19	Honeywell International Inc. 17 awardees, including BW Technologies Ltd Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$64,673,484	0.9%	Rank history: #11 in FY2022, #5 in FY2023, #2 in FY2024 and #1 in FY2025; down 15 since FY2020.
20	Johnson & Johnson 3 awardees, including Johnson & Johnson Health Care Systems Inc. and Ortho-Clinical Diagnostics, Inc. Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$62,856,269	0.9%	Rank history: #15 in FY2022, #17 in FY2023, #22 in FY2024 and #14 in FY2025; down 3 since FY2020.
21	Astrophysics Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) DTRA (Defense Threat Reduction Agency)	$61,603,411	0.9%	Rank history: not on the FY2022–FY2023 lists, #64 in FY2024 and #30 in FY2025; new, not ranked in FY2020.
22	Qinetiq Group PLC 2 awardees, including Foster-Miller, Inc. and Optasense Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$60,996,175	0.9%	Rank history: #60 in FY2022 and not on the FY2023–FY2025 lists; up 28 since FY2020.
23	The Boeing Company 13 awardees, including Boeing Distribution, Inc., Argon ST, Inc. and Boeing Distribution Services X, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$58,149,318	0.9%	Rank history: not on the FY2022 list, #15 in FY2023, #45 in FY2024 and #31 in FY2025; down 2 since FY2020.
24	General Dynamics Corporation 9 awardees, including General Dynamics Land Systems Inc., Electric Boat Corporation and General Dynamics Mission Systems, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$55,710,505	0.8%	Rank history: #89 in FY2022 and not on the FY2023–FY2025 lists; down 12 since FY2020.
25	Stryker Corporation 5 awardees, including Howmedica Osteonics Corp and Stryker Sales, LLC Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs) Smithsonian (Smithsonian Institution)	$51,273,009	0.8%	Rank history: #18 in FY2022, #21 in FY2023, #12 in FY2024 and #12 in FY2025; up 9 since FY2020.
26	Roche Holding AG 3 awardees, including Roche Diagnostics Corporation and Kapa Biosystems, Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) DHA (Defense Health Agency)	$44,683,092	0.7%	Rank history: #16 in FY2022, #24 in FY2023, #28 in FY2024 and not on the FY2025 list; up 12 since FY2020.
27	Beacon Point Associates LLC Top agencies DLA (Defense Logistics Agency) HHS (Department of Health and Human Services)	$40,490,549	0.6%	Rank history: #23 in FY2022, #31 in FY2023, #18 in FY2024 and #23 in FY2025; up 1 since FY2020.
28	Siemens Aktiengesellschaft 6 awardees, including Siemens Healthcare Diagnostics Inc., Siemens Medical Solutions Usa, Inc. and Siemens Industry Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$37,988,619	0.6%	Rank history: #24 in FY2022, #25 in FY2023, #56 in FY2024 and not on the FY2025 list; down 9 since FY2020.
29	Technical Communities, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DOT (Department of Transportation)	$35,131,580	0.5%	Rank history: #30 in FY2022, #28 in FY2023, #14 in FY2024 and #17 in FY2025; down 7 since FY2020.
30	Mbio Diagnostics Inc. Top agencies USAF (Department of the Air Force)	$35,089,000	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
31	Raytheon Company Top agencies USAF (Department of the Air Force)	$32,970,000	0.5%	Rank history: not on the FY2022–FY2025 lists; up 127 since FY2020.
32	Smiths Group PLC 2 awardees, including Smiths Detection Inc. and Smiths Interconnect, Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army) USDA (Department of Agriculture)	$28,996,367	0.4%	Rank history: #19 in FY2022, #37 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2020.
33	Curtiss-Wright Corporation 6 awardees, including Curtiss-Wright DS, Inc., Peerless Instrument Co., Inc. and Penny & Giles Aerospace Limited Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$28,974,619	0.4%	Rank history: #57 in FY2022, #60 in FY2023 and not on the FY2024–FY2025 lists; up 111 since FY2020.
34	Agilent Technologies, Inc. 7 awardees, including Biotek Instruments, Inc. and Keysight Technologies, Inc. Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice) USDA (Department of Agriculture)	$27,266,544	0.4%	Rank history: #26 in FY2022, #33 in FY2023 and not on the FY2024–FY2025 lists; down 11 since FY2020.
35	Team Corporation Top agencies Navy (Department of the Navy)	$27,034,011	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
36	Alliant Enterprises, LLC Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs) Army (Department of the Army)	$26,332,131	0.4%	Rank history: #41 in FY2022, #49 in FY2023, #46 in FY2024 and #50 in FY2025; up 3 since FY2020.
37	Leonardo S.p.A. 9 awardees, including DRS Network & Imaging Systems LLC, Leonardo US Cyber and Security Solutions, LLC and Daylight Solutions Inc. Top agencies Army (Department of the Army) DOT (Department of Transportation) Navy (Department of the Navy)	$25,705,230	0.4%	Rank history: #40 in FY2022, #94 in FY2023, #68 in FY2024 and not on the FY2025 list; up 11 since FY2020.
38	Illumina, Inc. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) Navy (Department of the Navy)	$25,664,218	0.4%	Rank history: #35 in FY2022, #36 in FY2023, #44 in FY2024 and #42 in FY2025; down 20 since FY2020.
39	Ametek Inc. 26 awardees, including Spectro Scientific, Inc., Gatan, Inc. and Advanced Measurement Technology Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$24,021,592	0.4%	Rank history: #34 in FY2022, #58 in FY2023, not on the FY2024 list and #46 in FY2025; up 35 since FY2020.
40	Compagnie Merieux Alliance 5 awardees, including Biofire Diagnostics LLC, Biomerieux Inc. and Biofire Defense LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) DHA (Defense Health Agency)	$23,119,001	0.3%	Rank history: #38 in FY2022, #55 in FY2023, #60 in FY2024 and not on the FY2025 list; down 24 since FY2020.
41	Dove Medical Supply LLC Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs)	$22,747,090	0.3%	Rank history: #39 in FY2022, #42 in FY2023, #35 in FY2024 and #26 in FY2025; down 12 since FY2020.
42	Zimmer US Inc. Top agencies DLA (Defense Logistics Agency)	$18,747,086	0.3%	Rank history: #43 in FY2022, #78 in FY2023 and not on the FY2024–FY2025 lists; up 22 since FY2020.
43	Government of Canada 2 awardees, including Canadian Commercial Corporation and National Research Council of Canada Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) Commerce (Department of Commerce)	$18,734,917	0.3%	Rank history: #29 in FY2022, #40 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.
44	BAE Systems PLC 12 awardees, including BAE Systems Information and Electronic Systems Integration Inc. and BAE Systems Controls Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$18,052,246	0.3%	Rank history: #10 in FY2022, #13 in FY2023, #30 in FY2024 and #5 in FY2025; down 2 since FY2020.
45	Total Technology, Inc. Top agencies Army (Department of the Army)	$17,923,546	0.3%	Rank history: #17 in FY2022, not on the FY2023 list, #71 in FY2024 and #24 in FY2025; up 8 since FY2020.
46	Campbell Scientific Inc. Top agencies Commerce (Department of Commerce) USDA (Department of Agriculture) DOI (Department of the Interior)	$16,646,760	0.2%	Rank history: #61 in FY2022, #67 in FY2023 and not on the FY2024–FY2025 lists; up 147 since FY2020.
47	R. S. Means Company LLC 10 awardees, including Fluke Electronics Corp, Setra Systems, Inc. and Fluke Corp Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$16,614,153	0.2%	Rank history: #31 in FY2022, #41 in FY2023 and not on the FY2024–FY2025 lists; down 6 since FY2020.
48	Henry Schein, Inc. Top agencies DLA (Defense Logistics Agency)	$15,606,461	0.2%	Rank history: #56 in FY2022, #69 in FY2023, #62 in FY2024 and #61 in FY2025; down 5 since FY2020.
49	Teledyne Technologies Incorporated 23 awardees, including Teledyne Instruments, Inc., Teledyne Brown Engineering, Inc. and Teledyne Risi, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DOI (Department of the Interior)	$15,245,965	0.2%	Rank history: #13 in FY2022, #90 in FY2023, #72 in FY2024 and not on the FY2025 list; up 28 since FY2020.
50	Corning Incorporated 2 awardees, including Corning Netoptix Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration) HHS (Department of Health and Human Services)	$15,060,969	0.2%	Rank history: not on the FY2022–FY2025 lists; up 375 since FY2020.
51	King Nutronics Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) NASA (National Aeronautics and Space Administration)	$15,055,930	0.2%	Rank history: #48 in FY2022, #72 in FY2023 and not on the FY2024–FY2025 lists; up 46 since FY2020.
52	Thales 4 awardees, including Thales Defense & Security Inc., Thales Belgium and Thales Usa, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) DOT (Department of Transportation)	$14,387,315	0.2%	Rank history: #97 in FY2022 and not on the FY2023–FY2025 lists; up 8 since FY2020.
53	Olympus America Inc 6 awardees, including Wabtec Inspection Technologies, Inc. Top agencies Navy (Department of the Navy) HHS (Department of Health and Human Services) DLA (Defense Logistics Agency)	$14,290,873	0.2%	Rank history: not on the FY2022–FY2025 lists; up 80 since FY2020.
54	VWR International LLC 2 awardees Top agencies DLA (Defense Logistics Agency) HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$14,280,249	0.2%	Rank history: #96 in FY2022, #89 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2020.
55	Covidien LP 4 awardees, including Medtronic Inc. and Covidien Sales LLC Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$14,252,176	0.2%	Rank history: #93 in FY2022 and not on the FY2023–FY2025 lists; up 65 since FY2020.
56	Federal Resources Supply Company 3 awardees, including Wright Tool Company, LLC Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency) DOJ (Department of Justice)	$13,891,372	0.2%	Rank history: #45 in FY2022, #44 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2020.
57	Sysmex Corporation Through Sysmex America, Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$13,598,892	0.2%	Rank history: #46 in FY2022, #50 in FY2023, #84 in FY2024 and not on the FY2025 list; up 10 since FY2020.
58	Rohde & Schwarz GMBH & Co. KG Through Rohde & Schwarz Usa, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Commerce (Department of Commerce)	$13,063,197	0.2%	Rank history: #49 in FY2022, #39 in FY2023, #58 in FY2024 and #72 in FY2025; up 42 since FY2020.
59	Celltrion USA Inc. Top agencies DLA (Defense Logistics Agency)	$12,528,000	0.2%	Rank history: #20 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
60	Aero Precision Industries LLC 2 awardees, including Allclear Aerospace & Defense, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$11,908,429	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
61	Franklin Young International, Incorporated Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$11,714,393	0.2%	Rank history: #50 in FY2022, #62 in FY2023, #48 in FY2024 and #51 in FY2025; down 6 since FY2020.
62	Kohler Co. Top agencies DOT (Department of Transportation)	$11,608,277	0.2%	Rank history: #22 in FY2022, #47 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2020.
63	Greiner BIO-One North America Inc. Top agencies HHS (Department of Health and Human Services)	$11,443,988	0.2%	Rank history: not on the FY2022–FY2025 lists; down 19 since FY2020.
64	Transaero, Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$11,393,625	0.2%	Rank history: #81 in FY2022, #86 in FY2023, #36 in FY2024 and #59 in FY2025; up 43 since FY2020.
65	Bruker Corporation 8 awardees, including Bruker Scientific LLC, Bruker Biospin Corp and Bruker AXS LLC Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) Navy (Department of the Navy)	$10,726,765	0.2%	Rank history: #74 in FY2022, #43 in FY2023, #31 in FY2024 and #73 in FY2025; down 13 since FY2020.
66	Genesis Vision, Inc. Top agencies DLA (Defense Logistics Agency)	$10,123,061	0.1%	Rank history: #65 in FY2022, #71 in FY2023, #70 in FY2024 and #44 in FY2025; up 9 since FY2020.
67	Carl Zeiss X-RAY Microscopy Inc. 3 awardees, including Carl Zeiss Microscopy, LLC and Carl Zeiss, Inc. Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) VA (Department of Veterans Affairs)	$9,985,482	0.1%	Rank history: #76 in FY2022, not on the FY2023 list, #82 in FY2024 and not on the FY2025 list; up 11 since FY2020.
68	JDS Uniphase Corporation 3 awardees, including Viavi Solutions Inc. and Viavi Solutionsllc Top agencies Army (Department of the Army) Commerce (Department of Commerce) Navy (Department of the Navy)	$9,663,892	0.1%	Rank history: not on the FY2022–FY2025 lists; up 105 since FY2020.
69	Boston Scientific Corp 2 awardees, including Boston Scientific Neuromodulation Corp Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs)	$9,651,465	0.1%	Rank history: #70 in FY2022, #65 in FY2023, #54 in FY2024 and #43 in FY2025; up 2 since FY2020.
70	Keysight Technologies, Inc. 3 awardees Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$9,526,741	0.1%	Rank history: #59 in FY2022, #35 in FY2023, #38 in FY2024 and #81 in FY2025; down 46 since FY2020.
71	Fedpoint Systems LLC Top agencies HHS (Department of Health and Human Services) DOT (Department of Transportation) Army (Department of the Army)	$9,290,641	0.1%	Rank history: #52 in FY2022 and not on the FY2023–FY2025 lists; up 184 since FY2020.
72	Vaisala OYJ 2 awardees, including Vaisala Inc. Top agencies Commerce (Department of Commerce) Navy (Department of the Navy) USAF (Department of the Air Force)	$9,088,495	0.1%	Rank history: #73 in FY2022, #54 in FY2023 and not on the FY2024–FY2025 lists; up 8 since FY2020.
73	Viken Detection Corporation Top agencies DHS (Department of Homeland Security) Army (Department of the Army) Navy (Department of the Navy)	$9,081,197	0.1%	Rank history: not on the FY2022–FY2025 lists; up 16 since FY2020.
74	Becton, Dickinson and Co 6 awardees, including Becton, Dickinson Italia S.P.A. and Becton Dickinson Del Uruguay S.A. Sucursal Del Peru Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$8,123,662	0.1%	Rank history: #53 in FY2022, #64 in FY2023, #79 in FY2024 and not on the FY2025 list; down 54 since FY2020.
75	Dental Health Products Incorporated Top agencies DLA (Defense Logistics Agency)	$8,016,182	0.1%	Rank history: #85 in FY2022, #91 in FY2023, #78 in FY2024 and #86 in FY2025; up 12 since FY2020.
76	Parker-Hannifin Corporation 5 awardees, including Lord Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$8,011,646	0.1%	Rank history: #78 in FY2022, #95 in FY2023 and not on the FY2024–FY2025 lists; down 15 since FY2020.
77	Xylem Inc. 7 awardees, including YSI Inc., CMS Research Corp and Purehm U.s. Inc. Top agencies DOI (Department of the Interior) Commerce (Department of Commerce) Army (Department of the Army)	$7,990,966	0.1%	Rank history: #91 in FY2022, #81 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2020.
78	Karl Leibinger GMBH & Co. KG Through Kls-Martin Limited Partnership Top agencies DLA (Defense Logistics Agency)	$7,868,899	0.1%	Rank history: #75 in FY2022, #83 in FY2023 and not on the FY2024–FY2025 lists; up 52 since FY2020.
79	L3Harris Interstate Electronics Corporation Top agencies USAF (Department of the Air Force)	$7,524,022	0.1%	Rank history: #55 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
80	Mirion Technologies (CANBERRA) Inc. 6 awardees, including Mirion Technologies (Mgpi), Inc., Mirion Technologies (Conax Nuclear), Inc. and Sun Nuclear Corp. Top agencies Army (Department of the Army) Navy (Department of the Navy) DOE (Department of Energy)	$7,375,457	0.1%	Rank history: not on the FY2022–FY2025 lists; up 13 since FY2020.
81	Benco Dental Supply Co. Top agencies DLA (Defense Logistics Agency)	$7,230,457	0.1%	Rank history: #68 in FY2022, #82 in FY2023, #76 in FY2024 and #80 in FY2025; up 21 since FY2020.
82	Trimble Inc. 3 awardees, including Applanix Corp Top agencies USDA (Department of Agriculture) DOI (Department of the Interior) USAF (Department of the Air Force)	$7,173,013	0.1%	Rank history: #72 in FY2022, #73 in FY2023, #94 in FY2024 and not on the FY2025 list; up 2 since FY2020.
83	Ensign-Bickford Industries Inc. 2 awardees, including Honeybee Robotics, Ltd. and Ensign-Bickford Aerospace & Defense Company Top agencies NASA (National Aeronautics and Space Administration)	$7,162,647	0.1%	Rank history: #33 in FY2022, #63 in FY2023, #88 in FY2024 and not on the FY2025 list; up 16 since FY2020.
84	Tri-Tech Forensics, Inc. Top agencies DOJ (Department of Justice) DLA (Defense Logistics Agency)	$6,976,954	0.1%	Rank history: #67 in FY2022 and not on the FY2023–FY2025 lists; up 275 since FY2020.
85	Toyota Industries Corporation Through Uster Technologies, Inc. Top agencies USDA (Department of Agriculture)	$6,927,743	0.1%	Rank history: #90 in FY2022 and not on the FY2023–FY2025 lists; up 13 since FY2020.
86	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) Navy (Department of the Navy)	$6,547,961	0.1%	Rank history: #87 in FY2022 and not on the FY2023–FY2025 lists; down 13 since FY2020.
87	Alakai Defense Systems, Inc. Top agencies Navy (Department of the Navy)	$6,436,121	0.1%	Rank history: not on the FY2022 list, #29 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
88	Waters Corporation 4 awardees, including Waters Technologies Corporation, Ta Instruments - Waters L.L.C. and Vicam, A Waters Business Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) Navy (Department of the Navy)	$6,389,053	0.1%	Rank history: #69 in FY2022, #74 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2020.
89	Applied Systems Engineering Incorporated Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$6,293,503	0.1%	Rank history: not on the FY2022–FY2025 lists; down 32 since FY2020.
90	Transdigm Group Incorporated 13 awardees, including Aerosonic LLC, Mason Electric Co. and Treality SVS LLC Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$6,229,635	0.1%	Rank history: not on the FY2022–FY2025 lists; up 45 since FY2020.
91	Mayflower Communications Company, Inc. Top agencies Army (Department of the Army)	$6,202,433	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
92	H C Merchandisers, Inc. Top agencies DLA (Defense Logistics Agency)	$6,111,260	0.1%	Rank history: not on the FY2022–FY2025 lists; up 106 since FY2020.
93	Mercury Computer Systems Inc. 2 awardees, including Mercury Defense Systems, Inc. and Mercury Systems Inc. Top agencies Navy (Department of the Navy)	$6,090,243	0.1%	Rank history: not on the FY2022–FY2025 lists; down 28 since FY2020.
94	Thomas Scientific LLC 3 awardees, including Ortho-Clinical Diagnostics GMBH Top agencies DLA (Defense Logistics Agency) HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$6,039,124	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
95	Jeol Ltd. Through Jeol Usa, Inc. Top agencies NASA (National Aeronautics and Space Administration) DOE (Department of Energy) Navy (Department of the Navy)	$5,836,097	0.1%	Rank history: not on the FY2022 list, #96 in FY2023 and not on the FY2024–FY2025 lists; up 87 since FY2020.
96	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$5,598,530	0.1%	Rank history: not on the FY2022–FY2024 lists and #92 in FY2025; up 23 since FY2020.
97	Valkyrie Enterprises, LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$5,578,641	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
98	Qualcomm Technologies Inc. Top agencies Army (Department of the Army)	$5,499,056	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
99	General Electric Company 14 awardees, including Unison Industries LLC, GE Aviation Systems LLC and Reuter-Stokes, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DTRA (Defense Threat Reduction Agency)	$5,448,925	0.1%	Rank history: #51 in FY2022, #93 in FY2023, not on the FY2024 list and #67 in FY2025; up 11 since FY2020.
100	Qiagen N.V. 3 awardees, including Dialunox GMBH Top agencies USAF (Department of the Air Force) HHS (Department of Health and Human Services) Army (Department of the Army)	$5,345,048	0.1%	Rank history: not on the FY2022–FY2025 lists; up 78 since FY2020.

Show 75 more

100 of 4,343 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC 66

Code	Net obligations	Largest contractor
6640 Laboratory Equipment and Supplies	$3,824,676,514	Abbott Laboratories
6665 Hazard-Detecting Instruments and Apparatus	$667,602,789	OSI Systems Inc.
6625 Electrical and Electronic Properties Measuring and Testing Instruments	$556,097,307	Lockheed Martin Corporation
6605 Navigational Instruments	$387,490,324	RTX Corporation
6610 Flight Instruments	$196,655,404	Southwest Research Institute
6695 Combination and Miscellaneous Instruments	$165,971,264	Sustainable System Solutions LLC
6650 Optical Instruments, Test Equipment, Components and Accessories	$165,379,461	L3Harris Technologies, Inc.
6685 Pressure, Temperature, and Humidity Measuring and Controlling Instruments	$155,996,413	Northrop Grumman Corporation
6630 Chemical Analysis Instruments	$120,754,811	Danaher Corporation
6635 Physical Properties Testing and Inspection	$104,524,435	Lockheed Martin Corporation
6680 Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments	$65,226,365	RTX Corporation
6660 Meteorological Instruments and Apparatus	$53,301,501	Campbell Scientific Inc.
6620 Engine Instruments	$44,832,973	Kohler Co.
6615 Automatic Pilot Mechanisms and Airborne Gyro Components	$38,769,458	Government of Canada
6636 Environmental Chambers and Related Equipment	$34,622,969	Team Corporation
6655 Geophysical Instruments	$25,539,933	Teledyne Technologies Incorporated
6675 Drafting, Surveying, and Mapping Instruments	$24,092,802	Trimble Inc.
6670 Scales and Balances	$7,341,087	Intercomp Co
6645 Time Measuring Instruments	$6,110,834	Marathon Watch Company Ltd

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 $6.82 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 PSC 66 contractors in FY2021?

1. Abbott Laboratories ($1.57B), 2. Airboss of America Corp ($288M), 3. OSI Systems Inc. ($215M), 4. Lockheed Martin Corporation ($188M), 5. Danaher Corporation ($186M), 6. Thermo Electron Corporation ($176M), 7. Orasure Technologies Inc. ($165M), 8. Leidos Holdings, Inc. ($164M), 9. Abbott Rapid DX North America LLC ($158M), 10. RTX Corporation ($138M).

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