Top 100 Contractors in PSC 66: Instruments and Laboratory Equipment, FY2024

Name: Top 100 Contractors in PSC 66: Instruments and Laboratory Equipment, FY2024
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2023 – Sep 30, 2024 Code page on GovTribe

The top 10 won 26% of FY2024 PSC 66 contract dollars

Contract obligations: $3,835,174,603 Net of deobligations, by contracts coded PSC 66 or a code under it
Contractors: 4,220 Parent companies with an obligation
Largest contractor: Lockheed Martin Corporation $198 million, 4.9% 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	Lockheed Martin Corporation 14 awardees, including Sikorsky Aircraft Corporation, Lockheed Martin Sippican, Inc. and Derco Aerospace, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$197,619,748	4.9%	Rank history: #4 in FY2021, #5 in FY2022, #3 in FY2023 and #2 in FY2025; up 2 since FY2023.
2	Honeywell International Inc. 23 awardees Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$162,789,943	4.0%	Rank history: #19 in FY2021, #11 in FY2022, #5 in FY2023 and #1 in FY2025; up 3 since FY2023.
3	RTX Corporation 40 awardees, including Raytheon Company, Rockwell Collins, Inc. and Rosemount Aerospace Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$111,501,190	2.8%	Rank history: #10 in FY2021, #6 in FY2022, #2 in FY2023 and #9 in FY2025; down 1 since FY2023.
4	Danaher Corporation 29 awardees, including Cepheid, Beckman Coulter, Inc. and Sea-Bird Electronics, Inc. Top agencies VA (Department of Veterans Affairs) DLA (Defense Logistics Agency) HHS (Department of Health and Human Services)	$94,508,064	2.3%	Rank history: #5 in FY2021, #3 in FY2022, #6 in FY2023 and #15 in FY2025; up 2 since FY2023.
5	Government Scientific Source Inc. Top agencies DLA (Defense Logistics Agency) HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$88,925,309	2.2%	Rank history: #15 in FY2021, #9 in FY2022, #10 in FY2023 and #3 in FY2025; up 5 since FY2023.
6	L3Harris Technologies, Inc. 16 awardees, including L3Harris Interstate Electronics Corporation, Acron Aviation, Inc. and Fisica Applied Technologies, Inc. Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$86,991,262	2.2%	Rank history: #12 in FY2021, #7 in FY2022, #8 in FY2023 and #8 in FY2025; up 2 since FY2023.
7	BAE Systems Information and Electronic Systems Integration Inc. Top agencies USAF (Department of the Air Force)	$81,931,495	2.0%	Rank history: not on the FY2021 list, #44 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
8	Northrop Grumman Corporation 21 awardees, including Northrop Grumman Systems Corp Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$80,353,246	2.0%	Rank history: #11 in FY2021, #12 in FY2022, #7 in FY2023 and #10 in FY2025; down 1 since FY2023.
9	PPD Development LP 13 awardees, including Life Technologies Corporation, FEI Company and Thermo Electron North America LLC Top agencies DOJ (Department of Justice) Commerce (Department of Commerce) HHS (Department of Health and Human Services)	$76,632,117	1.9%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2023 and #7 in FY2025; up 42 since FY2023.
10	Abbott Laboratories 12 awardees, including Abbott Molecular Inc., Abbott Rapid DX North America LLC and Alere San Diego, Inc. Top agencies VA (Department of Veterans Affairs) DLA (Defense Logistics Agency) HHS (Department of Health and Human Services)	$60,921,686	1.5%	Rank history: #1 in FY2021, #2 in FY2022, #16 in FY2023 and #6 in FY2025; up 6 since FY2023.
11	Federal Resources Supply Company, LLC Top agencies DOS (Department of State) Army (Department of the Army) DLA (Defense Logistics Agency)	$53,807,636	1.3%	Rank history: not on the FY2021–FY2023 lists and #77 in FY2025; new.
12	Stryker Corporation 3 awardees, including Howmedica Osteonics Corp and Stryker Sales, LLC Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs)	$48,145,636	1.2%	Rank history: #25 in FY2021, #18 in FY2022, #21 in FY2023 and #12 in FY2025; up 9 since FY2023.
13	Northrop Grumman Systems Corporation Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$44,475,485	1.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
14	Technical Communities, Inc. 2 awardees Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) USDA (Department of Agriculture)	$44,304,289	1.1%	Rank history: #29 in FY2021, #30 in FY2022, #28 in FY2023 and #17 in FY2025; up 14 since FY2023.
15	Tevet LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$39,850,029	1.0%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
16	Astronics Test Systems Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$38,590,234	1.0%	Rank history: not on the FY2021–FY2023 lists and #40 in FY2025; new.
17	Fisher Scientific Company L.L.C. Top agencies DLA (Defense Logistics Agency) HHS (Department of Health and Human Services) Army (Department of the Army)	$37,636,616	0.9%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2025; new.
18	Beacon Point Associates LLC Top agencies DLA (Defense Logistics Agency)	$35,035,180	0.9%	Rank history: #27 in FY2021, #23 in FY2022, #31 in FY2023 and #23 in FY2025; up 13 since FY2023.
19	Mountain Horse LLC 2 awardees Top agencies Army (Department of the Army) DFAS (Defense Finance and Accounting Service) DHS (Department of Homeland Security)	$32,578,117	0.8%	Rank history: not on the FY2021–FY2023 lists and #70 in FY2025; up 216 since FY2023.
20	Canadian Commercial Corporation Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$31,774,968	0.8%	Rank history: not on the FY2021–FY2023 lists and #21 in FY2025; new.
21	Science Applications International Corporation 3 awardees, including Asrc Federal Facilities Logistics, LLC Top agencies Commerce (Department of Commerce) DLA (Defense Logistics Agency)	$29,035,296	0.7%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
22	Johnson & Johnson 3 awardees, including Johnson & Johnson Health Care Systems Inc. and Depuy Synthes Sales Inc. Top agencies DLA (Defense Logistics Agency) HHS (Department of Health and Human Services)	$27,870,629	0.7%	Rank history: #20 in FY2021, #15 in FY2022, #17 in FY2023 and #14 in FY2025; down 5 since FY2023.
23	Leidos, Inc. Top agencies DHS (Department of Homeland Security)	$26,354,981	0.7%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
24	Ludlum Measurements, Inc. Top agencies Army (Department of the Army)	$26,350,946	0.7%	Rank history: not on the FY2021 list, #63 in FY2022, #52 in FY2023 and #37 in FY2025; up 28 since FY2023.
25	Emerson Electric Co 2 awardees, including National Instruments Corp and Rosemount Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$25,866,871	0.6%	Rank history: not on the FY2021–FY2023 lists and #99 in FY2025; new.
26	Johnson & Johnson Health Care Systems Inc. Top agencies DLA (Defense Logistics Agency)	$24,546,807	0.6%	Rank history: not on the FY2021 list, #80 in FY2022, not on the FY2023 list and not on the FY2025 list; up 281 since FY2023.
27	Agilent Technologies, Inc. 5 awardees, including Agilent Technologies Deutschland GMBH Top agencies Navy (Department of the Navy) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$24,047,181	0.6%	Rank history: not on the FY2021–FY2023 lists and #28 in FY2025; new.
28	Roche Holding AG 2 awardees, including Roche Diagnostics Corporation Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) DOJ (Department of Justice)	$23,916,057	0.6%	Rank history: #26 in FY2021, #16 in FY2022, #24 in FY2023 and not on the FY2025 list; down 4 since FY2023.
29	Sustainable System Solutions LLC Top agencies Army (Department of the Army)	$23,253,699	0.6%	Rank history: #17 in FY2021, #14 in FY2022, #23 in FY2023 and #49 in FY2025; down 6 since FY2023.
30	BAE Systems PLC 15 awardees, including BAE Systems Information and Electronic Systems Integration Inc., BAE Systems Controls Inc. and BAE Systems Land & Armaments L.P. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$23,235,857	0.6%	Rank history: #44 in FY2021, #10 in FY2022, #13 in FY2023 and #5 in FY2025; down 17 since FY2023.
31	Bruker Corporation 8 awardees, including Bruker Biospin Corp, Bruker Scientific LLC and Bruker Detection Corp Top agencies HHS (Department of Health and Human Services) Commerce (Department of Commerce) NASA (National Aeronautics and Space Administration)	$23,224,186	0.6%	Rank history: #65 in FY2021, #74 in FY2022, #43 in FY2023 and #73 in FY2025; up 12 since FY2023.
32	Beckman Coulter, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Navy (Department of the Navy)	$22,670,438	0.6%	Rank history: not on the FY2021–FY2023 lists and #16 in FY2025; new.
33	Fortive Corporation 2 awardees, including Fluke Electronics Corp and Landauer, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Commerce (Department of Commerce)	$22,217,667	0.6%	Rank history: not on the FY2021–FY2023 lists and #32 in FY2025; new.
34	Siemens Corporation 3 awardees, including Siemens Healthcare Diagnostics Inc. and Siemens Medical Solutions Usa, Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DOI (Department of the Interior)	$22,192,398	0.5%	Rank history: not on the FY2021–FY2023 lists and #38 in FY2025; new.
35	Dove Medical Supply LLC Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$21,796,849	0.5%	Rank history: #41 in FY2021, #39 in FY2022, #42 in FY2023 and #26 in FY2025; up 7 since FY2023.
36	Transaero, Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) USAF (Department of the Air Force)	$20,921,097	0.5%	Rank history: #64 in FY2021, #81 in FY2022, #86 in FY2023 and #59 in FY2025; up 50 since FY2023.
37	Logisys Technical Services Inc. Top agencies Army (Department of the Army)	$20,588,050	0.5%	Rank history: not on the FY2021 list, #58 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
38	Keysight Technologies, Inc. 2 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$20,497,969	0.5%	Rank history: #70 in FY2021, #59 in FY2022, #35 in FY2023 and #81 in FY2025; down 3 since FY2023.
39	Roche Holdings Inc. Through Roche Diagnostics Corporation Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$19,464,954	0.5%	Rank history: not on the FY2021–FY2023 lists and #22 in FY2025; new.
40	Rapiscan Systems Inc Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$19,389,154	0.5%	Rank history: not on the FY2021–FY2023 lists and #4 in FY2025; new.
41	Kilgore Flares Company LLC 3 awardees, including Chemring Sensors and Electronic Systems, Inc. and Chemring Energetic Devices Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$19,230,381	0.5%	Rank history: not on the FY2021–FY2022 lists, #61 in FY2023 and #45 in FY2025; up 20 since FY2023.
42	Red One Medical Devices LLC Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$18,458,351	0.5%	Rank history: not on the FY2021–FY2022 lists, #79 in FY2023 and #41 in FY2025; up 37 since FY2023.
43	Vaisala Inc. Top agencies Commerce (Department of Commerce) USAF (Department of the Air Force) Army (Department of the Army)	$18,183,025	0.5%	Rank history: not on the FY2021–FY2023 lists and #69 in FY2025; new.
44	Illumina, Inc. 2 awardees, including Partek, Incorporated Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) USUHS (DOD Uniformed Services University of the Health Sciences)	$17,891,583	0.4%	Rank history: #38 in FY2021, #35 in FY2022, #36 in FY2023 and #42 in FY2025; down 8 since FY2023.
45	The Boeing Company 10 awardees, including Boeing Distribution, Inc., Jeppesen Foreflight, Inc. and Liquid Robotics, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$17,605,328	0.4%	Rank history: #23 in FY2021, not on the FY2022 list, #15 in FY2023 and #31 in FY2025; down 30 since FY2023.
46	Alliant Enterprises, LLC Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$17,246,258	0.4%	Rank history: #36 in FY2021, #41 in FY2022, #49 in FY2023 and #50 in FY2025; up 3 since FY2023.
47	THALES 2 awardees, including Thales Defense & Security Inc. Top agencies Navy (Department of the Navy)	$16,333,398	0.4%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2023 and not on the FY2025 list; up 12 since FY2023.
48	Franklin Young International, Incorporated Top agencies HHS (Department of Health and Human Services) DLA (Defense Logistics Agency) USDA (Department of Agriculture)	$16,179,350	0.4%	Rank history: #61 in FY2021, #50 in FY2022, #62 in FY2023 and #51 in FY2025; up 14 since FY2023.
49	TRI-Tech Forensics Inc. Top agencies DOJ (Department of Justice) Navy (Department of the Navy)	$15,850,287	0.4%	Rank history: not on the FY2021–FY2022 lists, #53 in FY2023 and not on the FY2025 list; up 4 since FY2023.
50	D-2 Incorporated Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$15,784,228	0.4%	Rank history: not on the FY2021–FY2023 lists and #20 in FY2025; new.
51	L3HARRIS Aviation Products Inc 12 awardees, including L3Harris Interstate Electronics Corporation, L3Harris Technologies, Inc. and L3 Technologies, Inc. Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration) USSOCOM (United States Special Operations Command)	$15,680,611	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
52	Atlantic Diving Supply, Inc. Top agencies DLA (Defense Logistics Agency) DFAS (Defense Finance and Accounting Service) Army (Department of the Army)	$15,540,227	0.4%	Rank history: not on the FY2021–FY2023 lists and #29 in FY2025; new.
53	V2X, Inc. 2 awardees, including V2X Systems LLC and Advantor Systems II LLC Top agencies USAF (Department of the Air Force) HHS (Department of Health and Human Services) DLA (Defense Logistics Agency)	$14,927,235	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
54	Boston Scientific Corp 2 awardees, including Boston Scientific Neuromodulation Corp Top agencies DLA (Defense Logistics Agency)	$13,839,108	0.3%	Rank history: #69 in FY2021, #70 in FY2022, #65 in FY2023 and #43 in FY2025; up 11 since FY2023.
55	Atec Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$13,683,244	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
56	Siemens Aktiengesellschaft 2 awardees, including Siemens Healthcare Diagnostics Inc. and Siemens Government Technologies Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$13,650,426	0.3%	Rank history: #28 in FY2021, #24 in FY2022, #25 in FY2023 and not on the FY2025 list; down 31 since FY2023.
57	Era Health LLC Top agencies DLA (Defense Logistics Agency)	$12,352,906	0.3%	Rank history: not on the FY2021 list, #77 in FY2022, #75 in FY2023 and #63 in FY2025; up 18 since FY2023.
58	Rohde & Schwarz GMBH & Co. KG Through Rohde & Schwarz Usa, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DHS (Department of Homeland Security)	$12,110,963	0.3%	Rank history: #58 in FY2021, #49 in FY2022, #39 in FY2023 and #72 in FY2025; down 19 since FY2023.
59	Teradyne Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$12,071,295	0.3%	Rank history: not on the FY2021–FY2022 lists, #80 in FY2023 and #100 in FY2025; up 21 since FY2023.
60	Compagnie Merieux Alliance 2 awardees, including Biofire Diagnostics LLC and Biomerieux Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$12,029,395	0.3%	Rank history: #40 in FY2021, #38 in FY2022, #55 in FY2023 and not on the FY2025 list; down 5 since FY2023.
61	Zimmer Biomet Holdings Inc. Through Zimmer US Inc. Top agencies DLA (Defense Logistics Agency)	$11,917,200	0.3%	Rank history: not on the FY2021–FY2023 lists and #35 in FY2025; new.
62	Henry Schein, Inc. Top agencies DLA (Defense Logistics Agency)	$11,906,107	0.3%	Rank history: #48 in FY2021, #56 in FY2022, #69 in FY2023 and #61 in FY2025; up 7 since FY2023.
63	Medtronic Public Limited Company 2 awardees, including Medtronic USA Inc. and Medtronic Inc. Top agencies DLA (Defense Logistics Agency) HHS (Department of Health and Human Services)	$11,602,500	0.3%	Rank history: not on the FY2021–FY2022 lists, #70 in FY2023 and #76 in FY2025; up 7 since FY2023.
64	Astrophysics Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) Treasury (Department of the Treasury)	$11,544,791	0.3%	Rank history: #21 in FY2021, not on the FY2022–FY2023 lists and #30 in FY2025; up 134 since FY2023.
65	Illinois Tool Works Inc. 6 awardees, including North Star Imaging Incorporated, MTS Systems Corporation and QSA Global Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$10,817,820	0.3%	Rank history: not on the FY2021–FY2022 lists, #87 in FY2023 and not on the FY2025 list; up 22 since FY2023.
66	Rosemount Aerospace Inc. Top agencies DLA (Defense Logistics Agency)	$10,733,657	0.3%	Rank history: not on the FY2021–FY2023 lists and #34 in FY2025; new.
67	Safety Technology Holdings Inc. Through Humanetics Innovative Solutions, Inc. Top agencies USAF (Department of the Air Force) DOT (Department of Transportation) Army (Department of the Army)	$10,483,698	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
68	Leonardo S.p.A. 8 awardees, including DRS Network & Imaging Systems LLC, DRS Naval Power Systems Inc. and Laurel Technologies Partnership Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$10,250,287	0.3%	Rank history: #37 in FY2021, #40 in FY2022, #94 in FY2023 and not on the FY2025 list; up 26 since FY2023.
69	Olympus America Inc 2 awardees, including Wabtec Inspection Technologies, Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$9,706,042	0.2%	Rank history: not on the FY2021–FY2022 lists, #85 in FY2023 and not on the FY2025 list; up 16 since FY2023.
70	Genesis Vision, Inc. Top agencies DLA (Defense Logistics Agency)	$9,657,769	0.2%	Rank history: #66 in FY2021, #65 in FY2022, #71 in FY2023 and #44 in FY2025; up 1 since FY2023.
71	Total Technology, Inc. Top agencies Army (Department of the Army)	$9,589,402	0.2%	Rank history: #45 in FY2021, #17 in FY2022, not on the FY2023 list and #24 in FY2025; up 36 since FY2023.
72	Teledyne Technologies Incorporated 14 awardees, including Teledyne Flir Unmanned Ground Systems, Inc., Teledyne Instruments, Inc. and Teledyne Brown Engineering, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DOI (Department of the Interior)	$9,346,946	0.2%	Rank history: #49 in FY2021, #13 in FY2022, #90 in FY2023 and not on the FY2025 list; up 18 since FY2023.
73	American Systems Corporation Top agencies Navy (Department of the Navy)	$9,238,961	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
74	Valkyrie Enterprises Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$9,185,646	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 40 since FY2023.
75	NDT Solutions, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$8,991,511	0.2%	Rank history: not on the FY2021–FY2023 lists and #89 in FY2025; new.
76	Benco Dental Supply Co. Top agencies DLA (Defense Logistics Agency)	$8,928,298	0.2%	Rank history: #81 in FY2021, #68 in FY2022, #82 in FY2023 and #80 in FY2025; up 6 since FY2023.
77	GE Aviation Systems LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DHS (Department of Homeland Security)	$8,899,137	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
78	Dental Health Products Incorporated Top agencies DLA (Defense Logistics Agency)	$8,747,566	0.2%	Rank history: #75 in FY2021, #85 in FY2022, #91 in FY2023 and #86 in FY2025; up 13 since FY2023.
79	Becton, Dickinson and Co 5 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)	$8,720,529	0.2%	Rank history: #74 in FY2021, #53 in FY2022, #64 in FY2023 and not on the FY2025 list; down 15 since FY2023.
80	Buffalo Supply Inc. Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs)	$8,701,473	0.2%	Rank history: not on the FY2021 list, #88 in FY2022, #100 in FY2023 and #83 in FY2025; up 20 since FY2023.
81	VWR International LLC 3 awardees, including Labrepco LLC and Biomedical Solutions Inc. Top agencies DLA (Defense Logistics Agency) HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$8,540,824	0.2%	Rank history: not on the FY2021–FY2023 lists and #60 in FY2025; new.
82	Carl Zeiss X-RAY Microscopy Inc. Through Carl Zeiss Microscopy, LLC Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) DHS (Department of Homeland Security)	$8,538,398	0.2%	Rank history: #67 in FY2021, #76 in FY2022, not on the FY2023 list and not on the FY2025 list; up 30 since FY2023.
83	Samyak Solutions, Inc. Top agencies USDA (Department of Agriculture) HHS (Department of Health and Human Services) EPA (Environmental Protection Agency)	$8,467,804	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 57 since FY2023.
84	Sysmex Corporation Through Sysmex America, Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$8,455,814	0.2%	Rank history: #57 in FY2021, #46 in FY2022, #50 in FY2023 and not on the FY2025 list; down 34 since FY2023.
85	Kls-Martin Limited Partnership Top agencies DLA (Defense Logistics Agency)	$8,304,000	0.2%	Rank history: not on the FY2021–FY2023 lists and #64 in FY2025; new.
86	Affirmative Solutions LLC Top agencies DLA (Defense Logistics Agency)	$8,289,959	0.2%	Rank history: not on the FY2021–FY2022 lists, #92 in FY2023 and not on the FY2025 list; up 6 since FY2023.
87	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) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$8,031,382	0.2%	Rank history: not on the FY2021–FY2022 lists, #76 in FY2023 and not on the FY2025 list; down 11 since FY2023.
88	Ensign-Bickford Industries Inc. 2 awardees, including Honeybee Robotics LLC Top agencies NASA (National Aeronautics and Space Administration)	$7,922,200	0.2%	Rank history: #83 in FY2021, #33 in FY2022, #63 in FY2023 and not on the FY2025 list; down 25 since FY2023.
89	Smiths Detection Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army) DOJ (Department of Justice)	$7,865,101	0.2%	Rank history: not on the FY2021–FY2023 lists and #13 in FY2025; new.
90	Sysmex America Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$7,852,647	0.2%	Rank history: not on the FY2021–FY2023 lists and #48 in FY2025; new.
91	Satisloh North America Inc. Top agencies Navy (Department of the Navy)	$7,763,087	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
92	Thermo Electron Corporation 11 awardees, including Fisher Scientific Company L.L.C., Life Technologies Corporation and One Lambda, Inc. Top agencies DLA (Defense Logistics Agency) USDA (Department of Agriculture) VA (Department of Veterans Affairs)	$7,484,758	0.2%	Rank history: #6 in FY2021, #8 in FY2022, #9 in FY2023 and not on the FY2025 list; down 83 since FY2023.
93	Indal Technologies Inc 3 awardees, including Curtiss-Wright DS, Inc. and Penny & Giles Aerospace Limited Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$7,465,189	0.2%	Rank history: not on the FY2021–FY2023 lists and #84 in FY2025; new.
94	Trimble Inc. Top agencies USDA (Department of Agriculture) USAF (Department of the Air Force) DOI (Department of the Interior)	$7,409,449	0.2%	Rank history: #82 in FY2021, #72 in FY2022, #73 in FY2023 and not on the FY2025 list; down 21 since FY2023.
95	Kitco Fiber Optics Inc Top agencies Army (Department of the Army) Navy (Department of the Navy)	$7,170,357	0.2%	Rank history: not on the FY2021–FY2022 lists, #98 in FY2023 and not on the FY2025 list; up 3 since FY2023.
96	Arthrex Inc. Top agencies DLA (Defense Logistics Agency)	$7,100,259	0.2%	Rank history: not on the FY2021–FY2023 lists and #11 in FY2025; new.
97	Standard Calibrations Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$7,051,386	0.2%	Rank history: not on the FY2021–FY2023 lists and #66 in FY2025; up 50 since FY2023.
98	Career Crusher LLC Top agencies Navy (Department of the Navy)	$6,942,591	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
99	Titan Robotics Inc. Top agencies USAF (Department of the Air Force)	$6,876,728	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
100	Hoolaulima Government Solutions, LLC Top agencies Army (Department of the Army)	$6,813,990	0.2%	Rank history: not on the FY2021–FY2022 lists, #20 in FY2023 and not on the FY2025 list; down 80 since FY2023.

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100 of 4,220 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	$1,337,401,831	Government Scientific Source Inc.
6625 Electrical and Electronic Properties Measuring and Testing Instruments	$545,239,283	Lockheed Martin Corporation
6605 Navigational Instruments	$448,737,462	Honeywell International Inc.
6650 Optical Instruments, Test Equipment, Components and Accessories	$210,888,259	Lockheed Martin Corporation
6610 Flight Instruments	$181,943,738	RTX Corporation
6630 Chemical Analysis Instruments	$169,384,435	Abbott Laboratories
6685 Pressure, Temperature, and Humidity Measuring and Controlling Instruments	$168,029,306	Northrop Grumman Corporation
6665 Hazard-Detecting Instruments and Apparatus	$161,902,442	Ludlum Measurements, Inc.
6695 Combination and Miscellaneous Instruments	$143,567,787	Sustainable System Solutions LLC
6635 Physical Properties Testing and Inspection	$89,216,992	D-2 Incorporated
6680 Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments	$85,659,700	RTX Corporation
6615 Automatic Pilot Mechanisms and Airborne Gyro Components	$84,495,639	Canadian Commercial Corporation
6660 Meteorological Instruments and Apparatus	$83,409,392	Science Applications International Corporation
6620 Engine Instruments	$34,087,560	Atec Inc.
6675 Drafting, Surveying, and Mapping Instruments	$29,865,594	Hoolaulima Government Solutions, LLC
6655 Geophysical Instruments	$18,468,958	4 D Technology Corporation
6636 Environmental Chambers and Related Equipment	$13,147,975	Venturedyne Ltd
6670 Scales and Balances	$11,669,419	SDV Office Systems LLC
6632 Analysis Instruments, Medical Laboratory Use	$10,880,033	Danaher Corporation
6645 Time Measuring Instruments	$7,178,799	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 $4.04 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 2024 ran Oct 1, 2023 – Sep 30, 2024. 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 FY2023. "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 FY2023 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 FY2024?

1. Lockheed Martin Corporation ($198M), 2. Honeywell International Inc. ($163M), 3. RTX Corporation ($112M), 4. Danaher Corporation ($94.5M), 5. Government Scientific Source Inc. ($88.9M), 6. L3Harris Technologies, Inc. ($87M), 7. BAE Systems Information and Electronic Systems Integration Inc. ($81.9M), 8. Northrop Grumman Corporation ($80.4M), 9. PPD Development LP ($76.6M), 10. Abbott Laboratories ($60.9M).

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