Top 100 Contractors in PSC 66: Instruments and Laboratory Equipment, FY2023

Name: Top 100 Contractors in PSC 66: Instruments and Laboratory Equipment, FY2023
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2022 – Sep 30, 2023 Code page on GovTribe

The top 10 won 34% of FY2023 PSC 66 contract dollars

Contract obligations: $5,195,799,000 Net of deobligations, by contracts coded PSC 66 or a code under it
Contractors: 4,117 Parent companies with an obligation
Largest contractor: Ihealth Labs Inc. $358 million, 6.6% 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	Ihealth Labs Inc. Top agencies DLA (Defense Logistics Agency) HHS (Department of Health and Human Services)	$357,750,000	6.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
2	RTX Corporation 29 awardees, including Raytheon Company, Hamilton Sundstrand Corporation and Rockwell Collins, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) DLA (Defense Logistics Agency)	$274,630,629	5.1%	Rank history: #10 in FY2021, #6 in FY2022, #3 in FY2024 and #9 in FY2025; up 4 since FY2022.
3	Lockheed Martin Corporation 16 awardees, including Sikorsky Aircraft Corporation, Lockheed Martin Sippican, Inc. and Derco Aerospace, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$258,004,319	4.8%	Rank history: #4 in FY2021, #5 in FY2022, #1 in FY2024 and #2 in FY2025; up 2 since FY2022.
4	Access Bio, Inc. Top agencies DLA (Defense Logistics Agency)	$205,200,000	3.8%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
5	Honeywell International Inc. 16 awardees, including Honeywell Aerospace International Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$168,261,032	3.1%	Rank history: #19 in FY2021, #11 in FY2022, #2 in FY2024 and #1 in FY2025; up 6 since FY2022.
6	Danaher Corporation 21 awardees, including Cepheid, Beckman Coulter, Inc. and OTT Hydromet Corp Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DLA (Defense Logistics Agency)	$146,761,965	2.7%	Rank history: #5 in FY2021, #3 in FY2022, #4 in FY2024 and #15 in FY2025; down 3 since FY2022.
7	Northrop Grumman Corporation 19 awardees, including Northrop Grumman Systems Corp Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$133,445,825	2.5%	Rank history: #11 in FY2021, #12 in FY2022, #8 in FY2024 and #10 in FY2025; up 5 since FY2022.
8	L3Harris Technologies, Inc. 26 awardees, including L3Harris Interstate Electronics Corporation, L3 Technologies, Inc. and Acron Aviation, Inc. Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$107,201,270	2.0%	Rank history: #12 in FY2021, #7 in FY2022, #6 in FY2024 and #8 in FY2025; down 1 since FY2022.
9	Thermo Electron Corporation 17 awardees, including Fisher Scientific Company L.L.C., Life Technologies Corporation and Thermo Electron North America LLC Top agencies DOJ (Department of Justice) DLA (Defense Logistics Agency) HHS (Department of Health and Human Services)	$99,237,226	1.8%	Rank history: #6 in FY2021, #8 in FY2022, #92 in FY2024 and not on the FY2025 list; down 1 since FY2022.
10	Government Scientific Source Inc. Top agencies DLA (Defense Logistics Agency) HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$97,720,910	1.8%	Rank history: #15 in FY2021, #9 in FY2022, #5 in FY2024 and #3 in FY2025; down 1 since FY2022.
11	Barupon LLC Top agencies HHS (Department of Health and Human Services)	$86,400,000	1.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
12	Quidel Corp Top agencies DLA (Defense Logistics Agency) HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$82,306,318	1.5%	Rank history: #18 in FY2021, #1 in FY2022 and not on the FY2024–FY2025 lists; down 11 since FY2022.
13	BAE Systems PLC 11 awardees, including BAE Systems Information and Electronic Systems Integration Inc., BAE Systems Controls Inc. and BAE Systems (Operations) Limited Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$80,096,722	1.5%	Rank history: #44 in FY2021, #10 in FY2022, #30 in FY2024 and #5 in FY2025; down 3 since FY2022.
14	Cepheid Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DLA (Defense Logistics Agency)	$69,116,337	1.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 190 since FY2022.
15	The Boeing Company 11 awardees, including Jeppesen Foreflight, Inc., Boeing Distribution, Inc. and Boeing Distribution Services X, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$67,048,968	1.2%	Rank history: #23 in FY2021, not on the FY2022 list, #45 in FY2024 and #31 in FY2025; up 161 since FY2022.
16	Abbott Laboratories 8 awardees, including Abbott Molecular Inc., Abbott Rapid DX North America LLC and Alere San Diego, Inc. Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$66,097,237	1.2%	Rank history: #1 in FY2021, #2 in FY2022, #10 in FY2024 and #6 in FY2025; down 14 since FY2022.
17	Johnson & Johnson 3 awardees, including Johnson & Johnson Health Care Systems Inc., Ortho-Clinical Diagnostics, Inc. and Depuy Synthes Sales Inc. Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$63,436,314	1.2%	Rank history: #20 in FY2021, #15 in FY2022, #22 in FY2024 and #14 in FY2025; down 2 since FY2022.
18	Azure Medical, Inc. Top agencies HHS (Department of Health and Human Services)	$61,236,000	1.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
19	Orasure Technologies Inc. 2 awardees Top agencies DLA (Defense Logistics Agency) HHS (Department of Health and Human Services)	$53,639,679	1.0%	Rank history: #7 in FY2021, #4 in FY2022 and not on the FY2024–FY2025 lists; down 15 since FY2022.
20	Hoolaulima Government Solutions, LLC Top agencies Army (Department of the Army)	$51,395,834	0.9%	Rank history: not on the FY2021–FY2022 lists, #100 in FY2024 and not on the FY2025 list; up 130 since FY2022.
21	Stryker Corporation 3 awardees, including Howmedica Osteonics Corp and Stryker Sales, LLC Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs)	$49,647,432	0.9%	Rank history: #25 in FY2021, #18 in FY2022, #12 in FY2024 and #12 in FY2025; down 3 since FY2022.
22	Maxim Biomedical, Inc. Top agencies HHS (Department of Health and Human Services)	$49,536,000	0.9%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
23	Sustainable System Solutions LLC Top agencies Army (Department of the Army)	$48,749,673	0.9%	Rank history: #17 in FY2021, #14 in FY2022, #29 in FY2024 and #49 in FY2025; down 9 since FY2022.
24	Roche Holding AG 4 awardees, including Roche Diagnostics Corporation and Roche Diabetes Care Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$44,254,929	0.8%	Rank history: #26 in FY2021, #16 in FY2022, #28 in FY2024 and not on the FY2025 list; down 8 since FY2022.
25	Siemens Aktiengesellschaft 5 awardees, including Siemens Healthcare Diagnostics Inc., Siemens Government Technologies Inc. and Siemens Medical Solutions Usa, Inc. Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy) HHS (Department of Health and Human Services)	$43,864,540	0.8%	Rank history: #28 in FY2021, #24 in FY2022, #56 in FY2024 and not on the FY2025 list; down 1 since FY2022.
26	Flir Systems Inc. 7 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) DOT (Department of Transportation)	$43,223,441	0.8%	Rank history: #13 in FY2021, #79 in FY2022 and not on the FY2024–FY2025 lists; up 53 since FY2022.
27	Leidos Holdings, Inc. 6 awardees, including Leidos, Inc. and Dynetics, Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) DOS (Department of State)	$38,315,036	0.7%	Rank history: #8 in FY2021, #36 in FY2022, not on the FY2024 list and #18 in FY2025; up 9 since FY2022.
28	Technical Communities Inc Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) USDA (Department of Agriculture)	$32,507,245	0.6%	Rank history: #29 in FY2021, #30 in FY2022, #14 in FY2024 and #17 in FY2025; up 2 since FY2022.
29	Alakai Defense Systems, Inc. Top agencies Navy (Department of the Navy)	$31,965,486	0.6%	Rank history: #87 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
30	Kwell Laboratories Inc. Top agencies HHS (Department of Health and Human Services)	$31,384,584	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
31	Beacon Point Associates LLC Top agencies DLA (Defense Logistics Agency)	$31,006,168	0.6%	Rank history: #27 in FY2021, #23 in FY2022, #18 in FY2024 and #23 in FY2025; down 8 since FY2022.
32	Princeton Biomeditech Corp Top agencies HHS (Department of Health and Human Services)	$28,728,000	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
33	Agilent Technologies, Inc. 13 awardees, including Agilent Technologies Deutschland GMBH Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice) Navy (Department of the Navy)	$27,324,972	0.5%	Rank history: #34 in FY2021, #26 in FY2022 and not on the FY2024–FY2025 lists; down 7 since FY2022.
34	OSI Systems Inc. 2 awardees, including Rapiscan Systems Inc. Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency) DOJ (Department of Justice)	$26,962,604	0.5%	Rank history: #3 in FY2021, #54 in FY2022 and not on the FY2024–FY2025 lists; up 20 since FY2022.
35	Keysight Technologies, Inc. 2 awardees Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$26,882,756	0.5%	Rank history: #70 in FY2021, #59 in FY2022, #38 in FY2024 and #81 in FY2025; up 24 since FY2022.
36	Illumina, Inc. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) USAF (Department of the Air Force)	$26,542,535	0.5%	Rank history: #38 in FY2021, #35 in FY2022, #44 in FY2024 and #42 in FY2025; down 1 since FY2022.
37	Smiths Group PLC Through Smiths Detection Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army) USAF (Department of the Air Force)	$26,144,861	0.5%	Rank history: #32 in FY2021, #19 in FY2022 and not on the FY2024–FY2025 lists; down 18 since FY2022.
38	Honeybee Robotics LLC Top agencies NASA (National Aeronautics and Space Administration)	$24,601,302	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
39	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)	$24,345,297	0.4%	Rank history: #58 in FY2021, #49 in FY2022, #58 in FY2024 and #72 in FY2025; up 10 since FY2022.
40	Government of Canada Through Canadian Commercial Corporation Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$23,746,277	0.4%	Rank history: #43 in FY2021, #29 in FY2022 and not on the FY2024–FY2025 lists; down 11 since FY2022.
41	R. S. Means Company LLC 8 awardees, including Fluke Electronics Corp, Setra Systems, Inc. and Tektronix, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$22,469,499	0.4%	Rank history: #47 in FY2021, #31 in FY2022 and not on the FY2024–FY2025 lists; down 10 since FY2022.
42	Dove Medical Supply LLC Top agencies DLA (Defense Logistics Agency)	$22,136,169	0.4%	Rank history: #41 in FY2021, #39 in FY2022, #35 in FY2024 and #26 in FY2025; down 3 since FY2022.
43	Bruker Corporation 5 awardees, including Bruker Detection Corp, Bruker Biospin Corp and Bruker Scientific LLC Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) Army (Department of the Army)	$21,934,899	0.4%	Rank history: #65 in FY2021, #74 in FY2022, #31 in FY2024 and #73 in FY2025; up 31 since FY2022.
44	Federal Resources Supply Company 3 awardees, including Wright Tool Company, LLC Top agencies DOS (Department of State) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$21,457,330	0.4%	Rank history: #56 in FY2021, #45 in FY2022 and not on the FY2024–FY2025 lists; up 1 since FY2022.
45	Inbios International Inc. Top agencies HHS (Department of Health and Human Services)	$20,723,914	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
46	Sekisui America Corporation Through Sekisui Diagnostics, LLC Top agencies HHS (Department of Health and Human Services)	$20,520,000	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
47	Kohler Co. Top agencies DOT (Department of Transportation)	$20,116,967	0.4%	Rank history: #62 in FY2021, #22 in FY2022 and not on the FY2024–FY2025 lists; down 25 since FY2022.
48	Chemring Group PLC 3 awardees, including Chemring Sensors and Electronic Systems, Inc. and Chemring Energetic Devices Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$19,560,844	0.4%	Rank history: not on the FY2021 list, #21 in FY2022 and not on the FY2024–FY2025 lists; down 27 since FY2022.
49	Alliant Enterprises, LLC Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$19,362,095	0.4%	Rank history: #36 in FY2021, #41 in FY2022, #46 in FY2024 and #50 in FY2025; down 8 since FY2022.
50	Sysmex Corporation Through Sysmex America, Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$19,271,523	0.4%	Rank history: #57 in FY2021, #46 in FY2022, #84 in FY2024 and not on the FY2025 list; down 4 since FY2022.
51	PPD Development LP 6 awardees, including FEI Company, Thermo Scientific Portable Analytical Instruments Inc. and Thermo Eberline LLC Top agencies Commerce (Department of Commerce) HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$18,664,681	0.3%	Rank history: not on the FY2021–FY2022 lists, #9 in FY2024 and #7 in FY2025; new.
52	Ludlum Measurements, Inc. Top agencies Army (Department of the Army)	$18,254,610	0.3%	Rank history: not on the FY2021 list, #63 in FY2022, #24 in FY2024 and #37 in FY2025; up 11 since FY2022.
53	TRI-Tech Forensics Inc. Top agencies DOJ (Department of Justice) DOS (Department of State)	$17,413,344	0.3%	Rank history: not on the FY2021–FY2022 lists, #49 in FY2024 and not on the FY2025 list; new.
54	Vaisala OYJ 2 awardees, including Vaisala Inc. Top agencies Commerce (Department of Commerce) USAF (Department of the Air Force) Navy (Department of the Navy)	$17,331,285	0.3%	Rank history: #72 in FY2021, #73 in FY2022 and not on the FY2024–FY2025 lists; up 19 since FY2022.
55	Compagnie Merieux Alliance 3 awardees, including Biofire Diagnostics LLC and Biomerieux Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$17,314,043	0.3%	Rank history: #40 in FY2021, #38 in FY2022, #60 in FY2024 and not on the FY2025 list; down 17 since FY2022.
56	Parsons Corporation Through Parsons Government Services Inc. Top agencies DHS (Department of Homeland Security)	$16,985,826	0.3%	Rank history: not on the FY2021 list, #37 in FY2022 and not on the FY2024–FY2025 lists; down 19 since FY2022.
57	Fedpoint Systems LLC Top agencies HHS (Department of Health and Human Services) Commerce (Department of Commerce) EPA (Environmental Protection Agency)	$16,899,400	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
58	Ametek Inc. 24 awardees, including Cameca Instruments, Inc., Spectro Scientific, Inc. and Petrolab, L.L.C. Top agencies Navy (Department of the Navy) Commerce (Department of Commerce) USAF (Department of the Air Force)	$16,543,039	0.3%	Rank history: #39 in FY2021, #34 in FY2022, not on the FY2024 list and #46 in FY2025; down 24 since FY2022.
59	THALES 2 awardees, including Thales Defense & Security Inc. and Thales Avionics, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$16,314,585	0.3%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2024 and not on the FY2025 list; new.
60	Curtiss-Wright Corporation 4 awardees, including Curtiss-Wright DS, Inc., Penny & Giles Aerospace Limited and Peerless Instrument Co., Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$16,303,143	0.3%	Rank history: #33 in FY2021, #57 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
61	Kilgore Flares Company LLC 2 awardees, including Chemring Sensors and Electronic Systems, Inc. Top agencies Army (Department of the Army)	$15,766,951	0.3%	Rank history: not on the FY2021–FY2022 lists, #41 in FY2024 and #45 in FY2025; new.
62	Franklin Young International, Incorporated Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$14,899,089	0.3%	Rank history: #61 in FY2021, #50 in FY2022, #48 in FY2024 and #51 in FY2025; down 12 since FY2022.
63	Ensign-Bickford Industries Inc. 3 awardees, including Honeybee Robotics, Ltd. and Ensign-Bickford Aerospace & Defense Co Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$14,581,911	0.3%	Rank history: #83 in FY2021, #33 in FY2022, #88 in FY2024 and not on the FY2025 list; down 30 since FY2022.
64	Becton, Dickinson and Co 6 awardees, including Carefusion Solutions, LLC and Becton, Dickinson Italia S.P.A. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$14,507,293	0.3%	Rank history: #74 in FY2021, #53 in FY2022, #79 in FY2024 and not on the FY2025 list; down 11 since FY2022.
65	Boston Scientific Corp 2 awardees, including Boston Scientific Neuromodulation Corp Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$13,911,617	0.3%	Rank history: #69 in FY2021, #70 in FY2022, #54 in FY2024 and #43 in FY2025; up 5 since FY2022.
66	Textron Inc. 2 awardees, including Bell Textron Inc. and Textron Systems Corporation Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$13,549,616	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 128 since FY2022.
67	Campbell Scientific Inc. Top agencies Commerce (Department of Commerce) DOI (Department of the Interior) USDA (Department of Agriculture)	$13,438,891	0.2%	Rank history: #46 in FY2021, #61 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
68	General Nucleonics, Inc. Top agencies Navy (Department of the Navy)	$12,955,445	0.2%	Rank history: not on the FY2021 list, #82 in FY2022 and not on the FY2024–FY2025 lists; up 14 since FY2022.
69	Henry Schein, Inc. Top agencies DLA (Defense Logistics Agency)	$12,807,868	0.2%	Rank history: #48 in FY2021, #56 in FY2022, #62 in FY2024 and #61 in FY2025; down 13 since FY2022.
70	Medtronic Public Limited Company 3 awardees, including Medtronic Inc. and Medtronic USA Inc. Top agencies DLA (Defense Logistics Agency)	$12,129,156	0.2%	Rank history: not on the FY2021–FY2022 lists, #63 in FY2024 and #76 in FY2025; up 61 since FY2022.
71	Genesis Vision, Inc. Top agencies DLA (Defense Logistics Agency)	$11,798,925	0.2%	Rank history: #66 in FY2021, #65 in FY2022, #70 in FY2024 and #44 in FY2025; down 6 since FY2022.
72	King Nutronics Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$11,711,804	0.2%	Rank history: #51 in FY2021, #48 in FY2022 and not on the FY2024–FY2025 lists; down 24 since FY2022.
73	Trimble Inc. 2 awardees, including Applanix Corp Top agencies USDA (Department of Agriculture) DOI (Department of the Interior) USAF (Department of the Air Force)	$11,656,544	0.2%	Rank history: #82 in FY2021, #72 in FY2022, #94 in FY2024 and not on the FY2025 list; down 1 since FY2022.
74	Waters Corporation 4 awardees, including Waters Technologies Corporation, Ta Instruments - Waters L.L.C. and Wyatt Technology, LLC Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) EPA (Environmental Protection Agency)	$11,325,988	0.2%	Rank history: #88 in FY2021, #69 in FY2022 and not on the FY2024–FY2025 lists; down 5 since FY2022.
75	Era Health LLC Top agencies DLA (Defense Logistics Agency)	$11,148,700	0.2%	Rank history: not on the FY2021 list, #77 in FY2022, #57 in FY2024 and #63 in FY2025; up 2 since FY2022.
76	Airbus DS Military Aircraft Inc. 4 awardees, including Astronics Test Systems Inc. and Airbus US Space & Defense Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$10,923,282	0.2%	Rank history: not on the FY2021–FY2022 lists, #87 in FY2024 and not on the FY2025 list; new.
77	MSA Safety Sales LLC 2 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) HHS (Department of Health and Human Services)	$10,860,872	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 33 since FY2022.
78	Zimmer US Inc. 2 awardees, including Zimmer Biomet Spine, Inc. Top agencies DLA (Defense Logistics Agency)	$10,389,852	0.2%	Rank history: #42 in FY2021, #43 in FY2022 and not on the FY2024–FY2025 lists; down 35 since FY2022.
79	Red One Medical Devices LLC Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs)	$10,229,780	0.2%	Rank history: not on the FY2021–FY2022 lists, #42 in FY2024 and #41 in FY2025; new.
80	Teradyne Inc. 3 awardees Top agencies Navy (Department of the Navy) MDA (DOD Missile Defense Agency) Army (Department of the Army)	$9,940,098	0.2%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2024 and #100 in FY2025; up 116 since FY2022.
81	Xylem Inc. 4 awardees, including YSI Inc. and CMS Research Corp Top agencies DOI (Department of the Interior) Army (Department of the Army) Commerce (Department of Commerce)	$9,716,061	0.2%	Rank history: #77 in FY2021, #91 in FY2022 and not on the FY2024–FY2025 lists; up 10 since FY2022.
82	Benco Dental Supply Co. Top agencies DLA (Defense Logistics Agency)	$9,659,136	0.2%	Rank history: #81 in FY2021, #68 in FY2022, #76 in FY2024 and #80 in FY2025; down 14 since FY2022.
83	Karl Leibinger GMBH & Co. KG Through Kls-Martin Limited Partnership Top agencies DLA (Defense Logistics Agency)	$9,355,254	0.2%	Rank history: #78 in FY2021, #75 in FY2022 and not on the FY2024–FY2025 lists; down 8 since FY2022.
84	Theodor Wille Intertrade GMBH Through Atlantic Diving Supply, Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) USAF (Department of the Air Force)	$9,336,548	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 23 since FY2022.
85	Olympus America Inc 2 awardees, including Wabtec Inspection Technologies, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$9,096,635	0.2%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2024 and not on the FY2025 list; up 153 since FY2022.
86	Transaero, Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) USAF (Department of the Air Force)	$9,028,002	0.2%	Rank history: #64 in FY2021, #81 in FY2022, #36 in FY2024 and #59 in FY2025; down 5 since FY2022.
87	Illinois Tool Works Inc. 4 awardees, including North Star Imaging Incorporated and QSA Global Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) NASA (National Aeronautics and Space Administration)	$8,903,572	0.2%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2024 and not on the FY2025 list; up 102 since FY2022.
88	Zimmer Biomet Holdings Inc. Through Zimmer US Inc. Top agencies DLA (Defense Logistics Agency)	$8,868,483	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 44 since FY2022.
89	VWR International LLC 2 awardees Top agencies DLA (Defense Logistics Agency) HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$8,717,561	0.2%	Rank history: #54 in FY2021, #96 in FY2022 and not on the FY2024–FY2025 lists; up 7 since FY2022.
90	Teledyne Technologies Incorporated 14 awardees, including Teledyne Instruments, Inc., Teledyne Digital Imaging US, Inc. and Teledyne Flir Defense, Inc. Top agencies Navy (Department of the Navy) DOI (Department of the Interior) USAF (Department of the Air Force)	$8,677,125	0.2%	Rank history: #49 in FY2021, #13 in FY2022, #72 in FY2024 and not on the FY2025 list; down 77 since FY2022.
91	Dental Health Products Incorporated Top agencies DLA (Defense Logistics Agency)	$8,055,916	0.1%	Rank history: #75 in FY2021, #85 in FY2022, #78 in FY2024 and #86 in FY2025; down 6 since FY2022.
92	Affirmative Solutions LLC Top agencies DLA (Defense Logistics Agency)	$8,025,825	0.1%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2024 and not on the FY2025 list; new.
93	General Electric Company 13 awardees, including GE Aviation Systems LLC, Reuter-Stokes, LLC and Unison Industries LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) Army (Department of the Army)	$8,024,094	0.1%	Rank history: #99 in FY2021, #51 in FY2022, not on the FY2024 list and #67 in FY2025; down 42 since FY2022.
94	Leonardo S.p.A. 5 awardees, including DRS Network & Imaging Systems LLC, Laurel Technologies Partnership and DRS Training & Control Systems, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USSOCOM (United States Special Operations Command)	$7,908,361	0.1%	Rank history: #37 in FY2021, #40 in FY2022, #68 in FY2024 and not on the FY2025 list; down 54 since FY2022.
95	Parker-Hannifin Corporation 4 awardees, including Meggitt Aircraft Braking Systems Corporation and Lord Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$7,836,836	0.1%	Rank history: #76 in FY2021, #78 in FY2022 and not on the FY2024–FY2025 lists; down 17 since FY2022.
96	Jeol Ltd. Through Jeol Usa, Inc. Top agencies USAF (Department of the Air Force) DOI (Department of the Interior) Navy (Department of the Navy)	$7,569,141	0.1%	Rank history: #95 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 31 since FY2022.
97	Cardinal Point Captains Inc Top agencies Navy (Department of the Navy)	$7,396,494	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
98	Kitco Fiber Optics Inc Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$7,352,860	0.1%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2024 and not on the FY2025 list; new.
99	Moog Inc. 5 awardees, including Quickset Defense Technologies LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$7,230,368	0.1%	Rank history: not on the FY2021 list, #94 in FY2022 and not on the FY2024–FY2025 lists; down 5 since FY2022.
100	Buffalo Supply Inc. Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs) GSA (General Services Administration)	$7,226,403	0.1%	Rank history: not on the FY2021 list, #88 in FY2022, #80 in FY2024 and #83 in FY2025; down 12 since FY2022.

Show 75 more

100 of 4,117 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	$1,952,624,350	Access Bio, Inc.
6650 Optical Instruments, Test Equipment, Components and Accessories	$653,345,090	Ihealth Labs Inc.
6625 Electrical and Electronic Properties Measuring and Testing Instruments	$566,983,267	Lockheed Martin Corporation
6605 Navigational Instruments	$548,365,967	RTX Corporation
6665 Hazard-Detecting Instruments and Apparatus	$245,070,221	Leidos Holdings, Inc.
6685 Pressure, Temperature, and Humidity Measuring and Controlling Instruments	$184,380,461	Northrop Grumman Corporation
6610 Flight Instruments	$178,490,352	RTX Corporation
6630 Chemical Analysis Instruments	$170,295,596	Danaher Corporation
6695 Combination and Miscellaneous Instruments	$156,004,073	Sustainable System Solutions LLC
6635 Physical Properties Testing and Inspection	$110,261,240	Lockheed Martin Corporation
6615 Automatic Pilot Mechanisms and Airborne Gyro Components	$92,689,330	RTX Corporation
6675 Drafting, Surveying, and Mapping Instruments	$78,222,026	Hoolaulima Government Solutions, LLC
6660 Meteorological Instruments and Apparatus	$71,662,447	Vaisala OYJ
6680 Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments	$66,664,303	RTX Corporation
6620 Engine Instruments	$55,281,439	Kohler Co.
6655 Geophysical Instruments	$16,660,823	4 D Technology Corporation
6632 Analysis Instruments, Medical Laboratory Use	$14,597,683	Danaher Corporation
6670 Scales and Balances	$13,920,486	SDV Office Systems LLC
6636 Environmental Chambers and Related Equipment	$12,954,825	Calspan Technology Holding Corporation
6645 Time Measuring Instruments	$7,325,020	FEI-Zyfer 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 $5.43 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 2023 ran Oct 1, 2022 – Sep 30, 2023. 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 FY2022. "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 FY2022 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 FY2023?

1. Ihealth Labs Inc. ($358M), 2. RTX Corporation ($275M), 3. Lockheed Martin Corporation ($258M), 4. Access Bio, Inc. ($205M), 5. Honeywell International Inc. ($168M), 6. Danaher Corporation ($147M), 7. Northrop Grumman Corporation ($133M), 8. L3Harris Technologies, Inc. ($107M), 9. Thermo Electron Corporation ($99.2M), 10. Government Scientific Source Inc. ($97.7M).

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