Top 100 Contractors in PSC J066: Maintenance, Repair and Rebuilding of Equipment: Instruments and Laboratory Equipment, FY2023

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Thermo Electron Corporation 14 awardees, including Thermo Electron North America LLC, Life Technologies Corporation and FEI Company Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) DOJ (Department of Justice)	$15,601,680	5.4%	Rank history: #1 in FY2021, #1 in FY2022, #23 in FY2024 and not on the FY2025 list; unchanged since FY2022.
2	Science Applications International Corporation Top agencies Navy (Department of the Navy)	$14,844,133	5.1%	Rank history: #4 in FY2021, #2 in FY2022, #4 in FY2024 and #2 in FY2025; unchanged since FY2022.
3	Danaher Corporation 17 awardees, including AB Sciex LLC, Leica Microsystems Inc. and Beckman Coulter, Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) Navy (Department of the Navy)	$12,217,571	4.2%	Rank history: #2 in FY2021, #3 in FY2022, #3 in FY2024 and #4 in FY2025; unchanged since FY2022.
4	Goldbelt Frontier, LLC Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services) Army (Department of the Army)	$11,084,164	3.8%	Rank history: #10 in FY2021, #8 in FY2022, #2 in FY2024 and #9 in FY2025; up 4 since FY2022.
5	Blackwatch International Corporation Top agencies DMEA (Defense Microelectronics Activity)	$10,398,895	3.6%	Rank history: #8 in FY2021, #6 in FY2022, #12 in FY2024 and #3 in FY2025; up 1 since FY2022.
6	RTX Corporation 7 awardees, including Rockwell Collins, Inc., Hamilton Sunstrand Aviation Services Inc. and Simmonds Precision Products Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security)	$9,541,893	3.3%	Rank history: #3 in FY2021, #4 in FY2022, #13 in FY2024 and #30 in FY2025; down 2 since FY2022.
7	Agilent Technologies, Inc. 11 awardees, including Agilent Technologies Deutschland GMBH, Agilent Technologies Japan, Ltd. and Keysight Technologies, Inc. Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) EPA (Environmental Protection Agency)	$7,402,759	2.5%	Rank history: #7 in FY2021, #5 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
8	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) USUHS (DOD Uniformed Services University of the Health Sciences)	$7,098,642	2.4%	Rank history: #13 in FY2021, #7 in FY2022, #8 in FY2024 and #10 in FY2025; down 1 since FY2022.
9	Astronautics Corporation of America 2 awardees, including Kearfott Corporation Top agencies USAF (Department of the Air Force)	$6,594,890	2.3%	Rank history: #11 in FY2021, #19 in FY2022, #5 in FY2024 and #6 in FY2025; up 10 since FY2022.
10	Laboratory Equipment Service, LLC Top agencies HHS (Department of Health and Human Services)	$6,417,429	2.2%	Rank history: not on the FY2021 list, #11 in FY2022, #9 in FY2024 and #7 in FY2025; up 1 since FY2022.
11	Illumina, Inc. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) Navy (Department of the Navy)	$5,226,159	1.8%	Rank history: #17 in FY2021, #10 in FY2022, #11 in FY2024 and #11 in FY2025; down 1 since FY2022.
12	Waters Corporation 4 awardees, including Waters Technologies Corporation, Ta Instruments - Waters L.L.C. and Environmental Resource Associates, Inc. Top agencies HHS (Department of Health and Human Services) EPA (Environmental Protection Agency) USDA (Department of Agriculture)	$4,700,130	1.6%	Rank history: #16 in FY2021, #12 in FY2022, #28 in FY2024 and not on the FY2025 list; unchanged since FY2022.
13	Mclaughlin Research Corporation Top agencies Navy (Department of the Navy)	$4,541,665	1.6%	Rank history: #21 in FY2021, #41 in FY2022, #10 in FY2024 and #13 in FY2025; up 28 since FY2022.
14	Bruker Corporation 5 awardees, including Bruker Biospin Corp, Bruker Scientific LLC and Bruker AXS LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) Army (Department of the Army)	$3,814,458	1.3%	Rank history: #27 in FY2021, #22 in FY2022, #16 in FY2024 and #18 in FY2025; up 8 since FY2022.
15	PPD Development LP 4 awardees, including FEI Company, Thermo Eberline LLC and Thermo Scientific Portable Analytical Instruments Inc. Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) Army (Department of the Army)	$3,811,546	1.3%	Rank history: not on the FY2021–FY2022 lists, #1 in FY2024 and #1 in FY2025; new.
16	Agiliti Health Inc. 2 awardees Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency)	$3,692,344	1.3%	Rank history: not on the FY2021 list, #18 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
17	Rolls-Royce Military Aero Engines Ltd Through Rolls-Royce Corporation Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$3,554,419	1.2%	Rank history: #14 in FY2021, #15 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
18	Carl Zeiss X-RAY Microscopy Inc. 3 awardees, including Carl Zeiss Microscopy, LLC, Carl Zeiss, Inc. and Carl Zeiss De México, S.A. De C.V. Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) USUHS (DOD Uniformed Services University of the Health Sciences)	$3,545,715	1.2%	Rank history: #20 in FY2021, #27 in FY2022, #17 in FY2024 and #60 in FY2025; up 9 since FY2022.
19	Kbr, Inc. 2 awardees, including KBR Wyle Services, LLC Top agencies DOI (Department of the Interior)	$3,246,380	1.1%	Rank history: #40 in FY2021, #16 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
20	Ametek Inc. 11 awardees, including Spectro Scientific, Inc., Edax, LLC and Gatan Inc. Top agencies USAF (Department of the Air Force) HHS (Department of Health and Human Services) Navy (Department of the Navy)	$3,068,006	1.1%	Rank history: #25 in FY2021, #26 in FY2022, #25 in FY2024 and #90 in FY2025; up 6 since FY2022.
21	The Remi Group LLC Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) Army (Department of the Army)	$3,055,928	1.1%	Rank history: #19 in FY2021, #30 in FY2022, #6 in FY2024 and #5 in FY2025; up 9 since FY2022.
22	Perkinelmer Inc. 4 awardees, including Revvity Health Sciences, Inc., Revvity Signals Software, Inc. and Perkinelmer Japan G.k. Top agencies HHS (Department of Health and Human Services) EPA (Environmental Protection Agency) DHA (Defense Health Agency)	$2,876,734	1.0%	Rank history: #18 in FY2021, #13 in FY2022, #95 in FY2024 and not on the FY2025 list; down 9 since FY2022.
23	Jeol Ltd. Through Jeol Usa, Inc. Top agencies Army (Department of the Army) USDA (Department of Agriculture) HHS (Department of Health and Human Services)	$2,812,414	1.0%	Rank history: #23 in FY2021, #28 in FY2022, #52 in FY2024 and not on the FY2025 list; up 5 since FY2022.
24	Mikel, Inc. Top agencies Navy (Department of the Navy)	$2,672,480	0.9%	Rank history: #22 in FY2021, #25 in FY2022 and not on the FY2024–FY2025 lists; up 1 since FY2022.
25	TRC Companies, Inc. Through TRC Environmental Corp Top agencies EPA (Environmental Protection Agency)	$2,648,565	0.9%	Rank history: #26 in FY2021, #31 in FY2022, #51 in FY2024 and not on the FY2025 list; up 6 since FY2022.
26	Arjo Inc. Through Getinge USA Sales, LLC Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) USDA (Department of Agriculture)	$2,587,914	0.9%	Rank history: #28 in FY2021, #23 in FY2022, #49 in FY2024 and not on the FY2025 list; down 3 since FY2022.
27	General Electric Company 9 awardees, including GE Aviation Systems LLC, GE Precision Healthcare LLC and Datex-Ohmeda, Inc. Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$2,544,160	0.9%	Rank history: #31 in FY2021, #44 in FY2022, not on the FY2024 list and #20 in FY2025; up 17 since FY2022.
28	Integrated Production Systems, Inc. Top agencies Army (Department of the Army)	$2,427,757	0.8%	Rank history: #41 in FY2021, #29 in FY2022, #19 in FY2024 and #23 in FY2025; up 1 since FY2022.
29	Northrop Grumman Corporation 3 awardees, including Northrop Grumman Systems Corporation Top agencies Navy (Department of the Navy)	$2,016,001	0.7%	Rank history: #34 in FY2021, #40 in FY2022, #61 in FY2024 and #29 in FY2025; up 11 since FY2022.
30	Rees Scientific Corporation Top agencies HHS (Department of Health and Human Services) DHA (Defense Health Agency) USAF (Department of the Air Force)	$2,001,107	0.7%	Rank history: #42 in FY2021, #38 in FY2022, #22 in FY2024 and #25 in FY2025; up 8 since FY2022.
31	Toyota Industries Corporation 2 awardees, including Uster Technologies, Inc. and Werres Corporation Top agencies USDA (Department of Agriculture) Navy (Department of the Navy)	$1,926,495	0.7%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 150 since FY2022.
32	Sossec Inc. Top agencies USAF (Department of the Air Force)	$1,861,269	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
33	Siemens Aktiengesellschaft 5 awardees, including Siemens Medical Solutions Usa, Inc., Siemens Industry Inc. and Siemens Government Technologies Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) Navy (Department of the Navy)	$1,858,744	0.6%	Rank history: #15 in FY2021, #14 in FY2022, #47 in FY2024 and not on the FY2025 list; down 19 since FY2022.
34	The Gyro House Top agencies USAF (Department of the Air Force)	$1,778,675	0.6%	Rank history: #37 in FY2021, #43 in FY2022 and not on the FY2024–FY2025 lists; up 9 since FY2022.
35	L3Harris Technologies, Inc. 8 awardees, including Stellant Systems Inc. and Acron Aviation, Inc. Top agencies USAF (Department of the Air Force)	$1,677,791	0.6%	Rank history: #47 in FY2021, #17 in FY2022, not on the FY2024 list and #16 in FY2025; down 18 since FY2022.
36	Smiths Group PLC Through Smiths Detection Inc. Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security) Navy (Department of the Navy)	$1,580,923	0.5%	Rank history: #35 in FY2021, #33 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
37	The Boeing Company 2 awardees Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,547,139	0.5%	Rank history: #5 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
38	Firelake Construction Inc. Top agencies USDA (Department of Agriculture)	$1,534,006	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 109 since FY2022.
39	Tecan U.S. Group Inc. Through Tecan U.s., Inc. Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice) USDA (Department of Agriculture)	$1,310,828	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
40	R. S. Means Company LLC 8 awardees, including Tektronix, Inc., Advanced Sterilization Products Services Inc. and Fluke Electronics Corp Top agencies Navy (Department of the Navy) DHA (Defense Health Agency) DMEA (Defense Microelectronics Activity)	$1,299,736	0.4%	Rank history: #63 in FY2021, #34 in FY2022, #63 in FY2024 and not on the FY2025 list; down 6 since FY2022.
41	Goldbelt, Incorporated Through Peregrine Technical Solutions, LLC Top agencies Navy (Department of the Navy)	$1,146,483	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
42	Advanced Testing Technologies Inc. Top agencies USAF (Department of the Air Force)	$1,122,275	0.4%	Rank history: #33 in FY2021, #21 in FY2022, #32 in FY2024 and #39 in FY2025; down 21 since FY2022.
43	Illinois Tool Works Inc. 2 awardees, including North Star Imaging Incorporated Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$1,106,226	0.4%	Rank history: #89 in FY2021, #76 in FY2022, #27 in FY2024 and #32 in FY2025; up 33 since FY2022.
44	Koninklijke Philips N.V. 7 awardees, including Philips North America LLC and Tomtec Corporation Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$1,098,885	0.4%	Rank history: #32 in FY2021, #32 in FY2022 and not on the FY2024–FY2025 lists; down 12 since FY2022.
45	Keysight Technologies, Inc. 2 awardees Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$1,089,818	0.4%	Rank history: #87 in FY2021, #61 in FY2022, #34 in FY2024 and #28 in FY2025; up 16 since FY2022.
46	Olmsted Instrument Co Top agencies USAF (Department of the Air Force)	$1,053,094	0.4%	Rank history: #45 in FY2021, #37 in FY2022, not on the FY2024 list and #50 in FY2025; down 9 since FY2022.
47	Sartorius Aktiengesellschaft 3 awardees, including Sartorius Corporation and Sartorius Stedim North America Inc. Top agencies HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$1,042,225	0.4%	Rank history: #90 in FY2021, #60 in FY2022 and not on the FY2024–FY2025 lists; up 13 since FY2022.
48	Qiagen N.V. Top agencies Army (Department of the Army) DOJ (Department of Justice) HHS (Department of Health and Human Services)	$964,148	0.3%	Rank history: #65 in FY2021, #65 in FY2022 and not on the FY2024–FY2025 lists; up 17 since FY2022.
49	Cenmed Enterprises Inc. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) VA (Department of Veterans Affairs)	$963,197	0.3%	Rank history: #46 in FY2021, #36 in FY2022, #59 in FY2024 and #68 in FY2025; down 13 since FY2022.
50	Mettler-Toledo International Inc. 5 awardees, including Mettler-Toledo Autochem, Inc., Mettler-Toledo LLC and Mettler-Toledo Rainin, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) HHS (Department of Health and Human Services)	$947,815	0.3%	Rank history: not on the FY2021 list, #74 in FY2022 and not on the FY2024–FY2025 lists; up 24 since FY2022.
51	Federal Resources Supply Company 3 awardees, including KD Analytical Consulting LLC Top agencies Navy (Department of the Navy) DOJ (Department of Justice) DHS (Department of Homeland Security)	$910,544	0.3%	Rank history: #51 in FY2021, #56 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
52	Xylem Inc. 2 awardees, including CMS Research Corp and YSI Inc. Top agencies Army (Department of the Army) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$857,297	0.3%	Rank history: #43 in FY2021, #53 in FY2022 and not on the FY2024–FY2025 lists; up 1 since FY2022.
53	Heico Aerospace Corporat Through CSI Aerospace, Inc. Top agencies USAF (Department of the Air Force)	$818,070	0.3%	Rank history: #64 in FY2021, #77 in FY2022 and not on the FY2024–FY2025 lists; up 24 since FY2022.
54	Full Spectrum Group, LLC 2 awardees, including Full Spectrum Analytics Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) EPA (Environmental Protection Agency)	$792,345	0.3%	Rank history: #52 in FY2021, #54 in FY2022, #46 in FY2024 and #46 in FY2025; unchanged since FY2022.
55	The Bionetics Corporation Top agencies HHS (Department of Health and Human Services)	$775,946	0.3%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2024 and #70 in FY2025; new.
56	Steris Corporation 2 awardees, including Medivators Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$770,685	0.3%	Rank history: #55 in FY2021, #58 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
57	Transdigm Group Incorporated 2 awardees, including Symetrics Industries, LLC and Transicoil LLC Top agencies USAF (Department of the Air Force)	$769,332	0.3%	Rank history: #36 in FY2021, #42 in FY2022, #75 in FY2024 and not on the FY2025 list; down 15 since FY2022.
58	Cytek Biosciences, Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$746,555	0.3%	Rank history: not on the FY2021–FY2022 lists, #43 in FY2024 and not on the FY2025 list; up 63 since FY2022.
59	Williams Aerospace & Manufacturing Inc. Through Allclear Repair Services, Inc. Top agencies USAF (Department of the Air Force)	$740,361	0.3%	Rank history: #44 in FY2021, not on the FY2022 list, #74 in FY2024 and not on the FY2025 list; up 65 since FY2022.
60	Azenta, Inc. Through Azenta US Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$739,926	0.3%	Rank history: #85 in FY2021, #91 in FY2022, #56 in FY2024 and not on the FY2025 list; up 31 since FY2022.
61	Johnson Controls Industries Through Johnson Controls, Inc. Top agencies USAF (Department of the Air Force) USDA (Department of Agriculture)	$731,403	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
62	Progressive Recovery Inc. Top agencies USDA (Department of Agriculture)	$717,830	0.2%	Rank history: not on the FY2021 list, #90 in FY2022 and not on the FY2024–FY2025 lists; up 28 since FY2022.
63	Agil3 Technology Solutions LLC Top agencies Army (Department of the Army)	$710,715	0.2%	Rank history: #57 in FY2021, #59 in FY2022 and not on the FY2024–FY2025 lists; down 4 since FY2022.
64	Hitachi, Ltd. Through Hitachi High-Tech America, Inc. Top agencies WHS (DOD Washington Headquarters Service) Navy (Department of the Navy) HHS (Department of Health and Human Services)	$684,852	0.2%	Rank history: #91 in FY2021, #69 in FY2022, #73 in FY2024 and #55 in FY2025; up 5 since FY2022.
65	BIO - RAD Laboratories Gesellschaft MIT Beschraenkter Haftung 3 awardees, including Bio-Rad Laboratories, Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) DOI (Department of the Interior)	$649,701	0.2%	Rank history: #59 in FY2021, #50 in FY2022, #53 in FY2024 and not on the FY2025 list; down 15 since FY2022.
66	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) HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$644,307	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 49 since FY2022.
67	Franklin Young International, Incorporated Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) DOJ (Department of Justice)	$640,875	0.2%	Rank history: #58 in FY2021, #57 in FY2022, #78 in FY2024 and #63 in FY2025; down 10 since FY2022.
68	Nikon Corporation 3 awardees, including Nikon Instruments Inc., Optos, Inc. and Nikon Metrology, LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) Navy (Department of the Navy)	$636,721	0.2%	Rank history: #79 in FY2021, #55 in FY2022 and not on the FY2024–FY2025 lists; down 13 since FY2022.
69	Compagnie Merieux Alliance 2 awardees, including Biomerieux Inc. and Biofire Diagnostics LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$628,186	0.2%	Rank history: #72 in FY2021, #71 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
70	American Biomedical Group Inc. Top agencies HHS (Department of Health and Human Services)	$616,035	0.2%	Rank history: #12 in FY2021, #9 in FY2022 and not on the FY2024–FY2025 lists; down 61 since FY2022.
71	Innovative Solutions & Support Inc. Top agencies USAF (Department of the Air Force)	$601,191	0.2%	Rank history: not on the FY2021–FY2022 lists, #79 in FY2024 and not on the FY2025 list; up 56 since FY2022.
72	Sony Pictures Television Inc. Through Sony Biotechnology Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$587,436	0.2%	Rank history: #69 in FY2021, #81 in FY2022, #66 in FY2024 and not on the FY2025 list; up 9 since FY2022.
73	Perkinelmer U.s. LLC Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior) Navy (Department of the Navy)	$575,074	0.2%	Rank history: not on the FY2021–FY2022 lists, #29 in FY2024 and #24 in FY2025; new.
74	Hamilton Bonaduz AG Through Hamilton Company Top agencies Navy (Department of the Navy) HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$573,588	0.2%	Rank history: not on the FY2021 list, #83 in FY2022, #67 in FY2024 and not on the FY2025 list; up 9 since FY2022.
75	Diversified Laboratory Repair Inc. Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) Smithsonian (Smithsonian Institution)	$573,421	0.2%	Rank history: #96 in FY2021, not on the FY2022 list, #83 in FY2024 and not on the FY2025 list; up 36 since FY2022.
76	Aerospace Maintenance Solutions LLC Top agencies USAF (Department of the Air Force)	$567,010	0.2%	Rank history: not on the FY2021–FY2022 lists, #62 in FY2024 and #58 in FY2025; up 43 since FY2022.
77	Leica Microsystems Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$566,084	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 162 since FY2022.
78	Roche Holding AG Through Roche Diagnostics Corporation Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$561,463	0.2%	Rank history: #100 in FY2021, #97 in FY2022 and not on the FY2024–FY2025 lists; up 19 since FY2022.
79	Spectris PLC 2 awardees, including Malvern Panalytical Inc. and Particle Measuring Systems, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) DOE (Department of Energy)	$557,599	0.2%	Rank history: #84 in FY2021, #84 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
80	Miltenyi Biotec, Inc. Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy)	$534,365	0.2%	Rank history: #92 in FY2021, #66 in FY2022, #81 in FY2024 and not on the FY2025 list; down 14 since FY2022.
81	MKS Instruments Inc. 2 awardees, including Newport Corp Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$516,163	0.2%	Rank history: #73 in FY2021, #78 in FY2022, #80 in FY2024 and not on the FY2025 list; down 3 since FY2022.
82	Flir Systems Inc. 2 awardees, including Teledyne Flir Defense, LLC and Teledyne Flir Commercial Systems Inc. Top agencies Navy (Department of the Navy) EPA (Environmental Protection Agency)	$494,639	0.2%	Rank history: not on the FY2021 list, #89 in FY2022 and not on the FY2024–FY2025 lists; up 7 since FY2022.
83	Electronic Risks Consultants, Inc. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) EPA (Environmental Protection Agency)	$492,471	0.2%	Rank history: #62 in FY2021, #70 in FY2022 and not on the FY2024–FY2025 lists; down 13 since FY2022.
84	Liburdi Turbine Services, LLC Top agencies USAF (Department of the Air Force)	$484,243	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
85	Horiba Ltd. 3 awardees, including Horiba Instruments Incorporated Top agencies EPA (Environmental Protection Agency) Navy (Department of the Navy) DOI (Department of the Interior)	$461,132	0.2%	Rank history: not on the FY2021 list, #98 in FY2022 and not on the FY2024–FY2025 lists; up 13 since FY2022.
86	Alcon Vision LLC Top agencies USAF (Department of the Air Force)	$460,350	0.2%	Rank history: not on the FY2021 list, #73 in FY2022, #89 in FY2024 and not on the FY2025 list; down 13 since FY2022.
87	Veracity Trading Limited Top agencies DHA (Defense Health Agency) Army (Department of the Army)	$459,222	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 33 since FY2022.
88	Standard Biotools Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) EPA (Environmental Protection Agency)	$458,719	0.2%	Rank history: #82 in FY2021, #82 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
89	Mirion Technologies (CANBERRA) Inc. 2 awardees, including Sun Nuclear Corp. Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency) Navy (Department of the Navy)	$453,651	0.2%	Rank history: #86 in FY2021, #94 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
90	Peak Scientific Inc. Top agencies Navy (Department of the Navy) HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$448,187	0.2%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2024 and not on the FY2025 list; up 16 since FY2022.
91	Safepoint Scientific LLC Top agencies USDA (Department of Agriculture) VA (Department of Veterans Affairs)	$419,568	0.1%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2024 and #84 in FY2025; up 82 since FY2022.
92	AVL Test Systems Inc. Top agencies EPA (Environmental Protection Agency)	$417,793	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 62 since FY2022.
93	Mesh Inc. Top agencies Navy (Department of the Navy)	$416,435	0.1%	Rank history: #56 in FY2021, #93 in FY2022, #96 in FY2024 and #85 in FY2025; unchanged since FY2022.
94	1ST American Medical Distributors, Inc. Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$412,954	0.1%	Rank history: not on the FY2021 list, #87 in FY2022, #68 in FY2024 and not on the FY2025 list; down 7 since FY2022.
95	Parker-Hannifin Corporation 2 awardees Top agencies USAF (Department of the Air Force) Army (Department of the Army) USDA (Department of Agriculture)	$410,995	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 94 since FY2022.
96	Spectrofuge Corporation of North Carolina, Inc. Top agencies HHS (Department of Health and Human Services)	$407,914	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 40 since FY2022.
97	Oxford Instruments PLC Through Oxford Instruments America, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) EPA (Environmental Protection Agency)	$388,328	0.1%	Rank history: #76 in FY2021, #99 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
98	Pacific Biosciences of California, Inc. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$377,700	0.1%	Rank history: #78 in FY2021, #75 in FY2022, #94 in FY2024 and #79 in FY2025; down 23 since FY2022.
99	Mediso Usa, LLC Top agencies HHS (Department of Health and Human Services)	$374,621	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 24 since FY2022.
100	Triangle Manifold Services, Inc. Top agencies VA (Department of Veterans Affairs)	$366,582	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 144 since FY2022.

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 $291 million 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