Top 100 Contractors in PSC J066: Maintenance, Repair and Rebuilding of Equipment: Instruments and Laboratory Equipment, FY2024

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	PPD Development LP 11 awardees, including Thermo Electron North America LLC, FEI Company and Life Technologies Corporation Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) Navy (Department of the Navy)	$19,492,375	6.8%	Rank history: not on the FY2021–FY2022 lists, #15 in FY2023 and #1 in FY2025; up 14 since FY2023.
2	Goldbelt Frontier, LLC Top agencies HHS (Department of Health and Human Services) DHA (Defense Health Agency) Army (Department of the Army)	$13,915,939	4.9%	Rank history: #10 in FY2021, #8 in FY2022, #4 in FY2023 and #9 in FY2025; up 2 since FY2023.
3	Danaher Corporation 21 awardees, including AB Sciex LLC, Leica Microsystems Inc. and Cepheid Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$12,419,954	4.3%	Rank history: #2 in FY2021, #3 in FY2022, #3 in FY2023 and #4 in FY2025; unchanged since FY2023.
4	Science Applications International Corporation 2 awardees Top agencies Navy (Department of the Navy)	$10,737,375	3.8%	Rank history: #4 in FY2021, #2 in FY2022, #2 in FY2023 and #2 in FY2025; down 2 since FY2023.
5	Astronautics Corporation of America Through Kearfott Corporation Top agencies USAF (Department of the Air Force)	$10,440,325	3.6%	Rank history: #11 in FY2021, #19 in FY2022, #9 in FY2023 and #6 in FY2025; up 4 since FY2023.
6	The Remi Group LLC Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) Navy (Department of the Navy)	$9,763,831	3.4%	Rank history: #19 in FY2021, #30 in FY2022, #21 in FY2023 and #5 in FY2025; up 15 since FY2023.
7	Agilent Technologies, Inc. 3 awardees Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$8,502,566	3.0%	Rank history: not on the FY2021–FY2023 lists and #8 in FY2025; new.
8	Becton, Dickinson and Co 7 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)	$7,424,481	2.6%	Rank history: #13 in FY2021, #7 in FY2022, #8 in FY2023 and #10 in FY2025; unchanged since FY2023.
9	Laboratory Equipment Service, LLC Top agencies HHS (Department of Health and Human Services)	$7,198,128	2.5%	Rank history: not on the FY2021 list, #11 in FY2022, #10 in FY2023 and #7 in FY2025; up 1 since FY2023.
10	Mclaughlin Research Corporation Top agencies Navy (Department of the Navy)	$6,032,590	2.1%	Rank history: #21 in FY2021, #41 in FY2022, #13 in FY2023 and #13 in FY2025; up 3 since FY2023.
11	Illumina, Inc. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) Navy (Department of the Navy)	$5,804,330	2.0%	Rank history: #17 in FY2021, #10 in FY2022, #11 in FY2023 and #11 in FY2025; unchanged since FY2023.
12	Blackwatch International Corporation Top agencies DMEA (Defense Microelectronics Activity)	$5,780,534	2.0%	Rank history: #8 in FY2021, #6 in FY2022, #5 in FY2023 and #3 in FY2025; down 7 since FY2023.
13	RTX Corporation 15 awardees, including Rockwell Collins, Inc., Hamilton Sunstrand Aviation Services Inc. and Hamilton Sundstrand Corporation Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DHS (Department of Homeland Security)	$5,719,512	2.0%	Rank history: #3 in FY2021, #4 in FY2022, #6 in FY2023 and #30 in FY2025; down 7 since FY2023.
14	Getinge USA Sales, LLC Top agencies DHA (Defense Health Agency) USDA (Department of Agriculture) HHS (Department of Health and Human Services)	$4,235,859	1.5%	Rank history: #99 in FY2021, not on the FY2022–FY2023 lists and #17 in FY2025; returned.
15	KBR Wyle Services, LLC Top agencies DOI (Department of the Interior)	$3,673,932	1.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
16	Bruker Corporation 7 awardees, including Bruker Biospin Corp, Bruker Scientific LLC and Bruker Nano, Inc. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) VA (Department of Veterans Affairs)	$3,669,559	1.3%	Rank history: #27 in FY2021, #22 in FY2022, #14 in FY2023 and #18 in FY2025; down 2 since FY2023.
17	Carl Zeiss X-RAY Microscopy Inc. 2 awardees, including Carl Zeiss Microscopy, LLC and Carl Zeiss, Inc. Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) USAF (Department of the Air Force)	$3,505,686	1.2%	Rank history: #20 in FY2021, #27 in FY2022, #18 in FY2023 and #60 in FY2025; up 1 since FY2023.
18	Waters Technologies Corporation Top agencies HHS (Department of Health and Human Services) EPA (Environmental Protection Agency) USDA (Department of Agriculture)	$2,807,857	1.0%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2025; new.
19	Integrated Production Systems, Inc. Top agencies Army (Department of the Army)	$2,500,590	0.9%	Rank history: #41 in FY2021, #29 in FY2022, #28 in FY2023 and #23 in FY2025; up 9 since FY2023.
20	Mikel Inc. Top agencies Navy (Department of the Navy)	$2,374,267	0.8%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2025; new.
21	Hamilton Sundstrand Corporation 2 awardees Top agencies USAF (Department of the Air Force)	$2,261,829	0.8%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
22	Rees Scientific Corporation Top agencies HHS (Department of Health and Human Services) DHA (Defense Health Agency) USAF (Department of the Air Force)	$1,931,766	0.7%	Rank history: #42 in FY2021, #38 in FY2022, #30 in FY2023 and #25 in FY2025; up 8 since FY2023.
23	Thermo Electron Corporation 5 awardees, including Thermo Electron North America LLC, Life Technologies Corporation and Thermo Fisher Scientific (Asheville) LLC Top agencies HHS (Department of Health and Human Services) EPA (Environmental Protection Agency) VA (Department of Veterans Affairs)	$1,908,556	0.7%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and not on the FY2025 list; down 22 since FY2023.
24	Honeywell International Inc. 3 awardees, including Honeywell Analytics Inc. Top agencies USAF (Department of the Air Force) Commerce (Department of Commerce)	$1,822,849	0.6%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
25	Ametek Inc. 11 awardees, including Spectro Scientific, Inc., Cameca Instruments, Inc. and Advanced Measurement Technology Inc. Top agencies USAF (Department of the Air Force) HHS (Department of Health and Human Services) Army (Department of the Army)	$1,790,003	0.6%	Rank history: #25 in FY2021, #26 in FY2022, #20 in FY2023 and #90 in FY2025; down 5 since FY2023.
26	Rolls-Royce Solutions America Inc. Through Rolls-Royce Corporation Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$1,755,396	0.6%	Rank history: not on the FY2021–FY2023 lists and #12 in FY2025; new.
27	Illinois Tool Works Inc. 3 awardees, including North Star Imaging Incorporated and MTS Systems Corporation Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$1,744,489	0.6%	Rank history: #89 in FY2021, #76 in FY2022, #43 in FY2023 and #32 in FY2025; up 16 since FY2023.
28	Waters Corporation 4 awardees, including Waters Technologies Corporation, Wyatt Technology, LLC and Ta Instruments - Waters L.L.C. Top agencies HHS (Department of Health and Human Services) EPA (Environmental Protection Agency) USDA (Department of Agriculture)	$1,727,512	0.6%	Rank history: #16 in FY2021, #12 in FY2022, #12 in FY2023 and not on the FY2025 list; down 16 since FY2023.
29	Perkinelmer U.S. LLC 2 awardees Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) DHA (Defense Health Agency)	$1,703,196	0.6%	Rank history: not on the FY2021–FY2022 lists, #73 in FY2023 and #24 in FY2025; up 44 since FY2023.
30	Firelake Construction Inc Top agencies USDA (Department of Agriculture)	$1,623,664	0.6%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
31	V.j. Technologies, Inc. Top agencies Army (Department of the Army)	$1,602,671	0.6%	Rank history: not on the FY2021 list, #63 in FY2022, not on the FY2023 list and #52 in FY2025; up 169 since FY2023.
32	Advanced Testing Technologies Inc. Top agencies USAF (Department of the Air Force)	$1,413,362	0.5%	Rank history: #33 in FY2021, #21 in FY2022, #42 in FY2023 and #39 in FY2025; up 10 since FY2023.
33	Tecan U.S. Group Inc. Through Tecan U.s., Inc. Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice) VA (Department of Veterans Affairs)	$1,406,019	0.5%	Rank history: not on the FY2021–FY2023 lists and #47 in FY2025; new.
34	Keysight Technologies, Inc. 2 awardees Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$1,403,300	0.5%	Rank history: #87 in FY2021, #61 in FY2022, #45 in FY2023 and #28 in FY2025; up 11 since FY2023.
35	Vanderlande Industries Inc. Through Uster Technologies, Inc. Top agencies USDA (Department of Agriculture)	$1,388,690	0.5%	Rank history: not on the FY2021–FY2023 lists and #80 in FY2025; new.
36	Revvity Health Sciences, Inc. Top agencies HHS (Department of Health and Human Services) EPA (Environmental Protection Agency) USAF (Department of the Air Force)	$1,376,333	0.5%	Rank history: not on the FY2021–FY2023 lists and #22 in FY2025; new.
37	General Electric Company 2 awardees, including GE Precision Healthcare LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$1,363,570	0.5%	Rank history: not on the FY2021–FY2023 lists and #20 in FY2025; new.
38	Nexus Group, LLC Top agencies Army (Department of the Army) USDA (Department of Agriculture) EPA (Environmental Protection Agency)	$1,330,024	0.5%	Rank history: not on the FY2021–FY2023 lists and #40 in FY2025; up 65 since FY2023.
39	TRC Environmental Corp Top agencies EPA (Environmental Protection Agency)	$1,312,944	0.5%	Rank history: not on the FY2021–FY2023 lists and #38 in FY2025; new.
40	Siemens Corporation 3 awardees, including Siemens Medical Solutions Usa, Inc. and Varian Medical Systems, Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$1,268,922	0.4%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2025; new.
41	Qiagen, LLC Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice) Army (Department of the Army)	$1,238,250	0.4%	Rank history: not on the FY2021–FY2023 lists and #73 in FY2025; new.
42	Peregrine Technical Solutions, LLC Top agencies Navy (Department of the Navy)	$1,181,629	0.4%	Rank history: not on the FY2021–FY2023 lists and #92 in FY2025; new.
43	Cytek Biosciences, Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) Commerce (Department of Commerce)	$1,152,947	0.4%	Rank history: not on the FY2021–FY2022 lists, #58 in FY2023 and not on the FY2025 list; up 15 since FY2023.
44	Mirion Technologies (CAPINTEC) Inc. 2 awardees, including Mirion Technologies (Canberra), Inc. and Sun Nuclear Corp. Top agencies Navy (Department of the Navy) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$1,135,779	0.4%	Rank history: not on the FY2021–FY2023 lists and #36 in FY2025; new.
45	Agiliti Health Inc. Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$1,128,928	0.4%	Rank history: #30 in FY2021, not on the FY2022–FY2023 lists and #21 in FY2025; returned.
46	Full Spectrum Group, LLC 2 awardees, including Full Spectrum Analytics Top agencies DHS (Department of Homeland Security) Army (Department of the Army) EPA (Environmental Protection Agency)	$1,096,194	0.4%	Rank history: #52 in FY2021, #54 in FY2022, #54 in FY2023 and #46 in FY2025; up 8 since FY2023.
47	Siemens Aktiengesellschaft 5 awardees, including Siemens Healthcare Diagnostics Inc., Siemens Medical Solutions Usa, Inc. and Varian Medical Systems, Inc. Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$956,881	0.3%	Rank history: #15 in FY2021, #14 in FY2022, #33 in FY2023 and not on the FY2025 list; down 14 since FY2023.
48	Jeol Usa, Inc. Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) DOE (Department of Energy)	$903,714	0.3%	Rank history: not on the FY2021–FY2023 lists and #33 in FY2025; new.
49	Arjo Inc. Through Getinge USA Sales, LLC Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) VA (Department of Veterans Affairs)	$886,888	0.3%	Rank history: #28 in FY2021, #23 in FY2022, #26 in FY2023 and not on the FY2025 list; down 23 since FY2023.
50	Wright Tool Company LLC Through KD Analytical Consulting LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$857,710	0.3%	Rank history: not on the FY2021–FY2023 lists and #49 in FY2025; new.
51	TRC Companies, Inc. Through TRC Environmental Corp Top agencies EPA (Environmental Protection Agency)	$855,656	0.3%	Rank history: #26 in FY2021, #31 in FY2022, #25 in FY2023 and not on the FY2025 list; down 26 since FY2023.
52	Jeol Ltd. Through Jeol Usa, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) EPA (Environmental Protection Agency)	$842,563	0.3%	Rank history: #23 in FY2021, #28 in FY2022, #23 in FY2023 and not on the FY2025 list; down 29 since FY2023.
53	BIO - RAD Laboratories Gesellschaft MIT Beschraenkter Haftung 3 awardees, including Bio Rad Laboratories Inc. Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$796,348	0.3%	Rank history: #59 in FY2021, #50 in FY2022, #65 in FY2023 and not on the FY2025 list; up 12 since FY2023.
54	Steris Corporation Top agencies USDA (Department of Agriculture) HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$788,311	0.3%	Rank history: not on the FY2021–FY2023 lists and #48 in FY2025; new.
55	Kaptas OY Top agencies HHS (Department of Health and Human Services)	$730,000	0.3%	Rank history: not on the FY2021–FY2023 lists and #69 in FY2025; new.
56	Azenta, Inc. Through Azenta US Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$717,460	0.3%	Rank history: #85 in FY2021, #91 in FY2022, #60 in FY2023 and not on the FY2025 list; up 4 since FY2023.
57	Philips North America LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) USUHS (DOD Uniformed Services University of the Health Sciences)	$698,322	0.2%	Rank history: not on the FY2021–FY2023 lists and #41 in FY2025; new.
58	Nikon Americas Inc. 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)	$693,838	0.2%	Rank history: not on the FY2021–FY2023 lists and #77 in FY2025; up 118 since FY2023.
59	Cenmed Enterprises Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) Army (Department of the Army)	$678,602	0.2%	Rank history: #46 in FY2021, #36 in FY2022, #49 in FY2023 and #68 in FY2025; down 10 since FY2023.
60	Beckman Coulter, Inc. Top agencies Navy (Department of the Navy) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$658,011	0.2%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2025; new.
61	Northrop Grumman Corporation 4 awardees, including Northrop Grumman Systems Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$647,012	0.2%	Rank history: #34 in FY2021, #40 in FY2022, #29 in FY2023 and #29 in FY2025; down 32 since FY2023.
62	Aerospace Maintenance Solutions LLC Top agencies USAF (Department of the Air Force)	$636,468	0.2%	Rank history: not on the FY2021–FY2022 lists, #76 in FY2023 and #58 in FY2025; up 14 since FY2023.
63	R. S. Means Company LLC 4 awardees, including Tektronix, Inc., Fluke Electronics Corp and Advanced Sterilization Products Espana SL. Top agencies Navy (Department of the Navy) DMEA (Defense Microelectronics Activity) DHA (Defense Health Agency)	$612,230	0.2%	Rank history: #63 in FY2021, #34 in FY2022, #40 in FY2023 and not on the FY2025 list; down 23 since FY2023.
64	Gatan Inc. Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) Commerce (Department of Commerce)	$608,607	0.2%	Rank history: not on the FY2021–FY2023 lists and #82 in FY2025; new.
65	The Bionetics Corporation Top agencies HHS (Department of Health and Human Services)	$601,460	0.2%	Rank history: not on the FY2021–FY2022 lists, #55 in FY2023 and #70 in FY2025; down 10 since FY2023.
66	Sony Pictures Television Inc. Through Sony Biotechnology Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$600,551	0.2%	Rank history: #69 in FY2021, #81 in FY2022, #72 in FY2023 and not on the FY2025 list; up 6 since FY2023.
67	Hamilton Bonaduz AG Through Hamilton Company Top agencies Navy (Department of the Navy) HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$595,368	0.2%	Rank history: not on the FY2021 list, #83 in FY2022, #74 in FY2023 and not on the FY2025 list; up 7 since FY2023.
68	1ST American Medical Distributors, Inc. Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture) HHS (Department of Health and Human Services)	$591,458	0.2%	Rank history: not on the FY2021 list, #87 in FY2022, #94 in FY2023 and not on the FY2025 list; up 26 since FY2023.
69	Koninklijke Philips N.V. Through Philips North America LLC Top agencies HHS (Department of Health and Human Services) USUHS (DOD Uniformed Services University of the Health Sciences)	$584,894	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
70	Mettler-Toledo International Inc. 3 awardees, including Mettler-Toledo Autochem, Inc., Mettler-Toledo LLC and Mettler-Toledo Rainin, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) DOJ (Department of Justice)	$584,510	0.2%	Rank history: not on the FY2021–FY2023 lists and #96 in FY2025; new.
71	Teledyne Technologies Incorporated 7 awardees, including Teledyne Flir Defense, LLC, Teledyne Instruments Inc. and Teledyne Lecroy, Inc. Top agencies Navy (Department of the Navy) HHS (Department of Health and Human Services) EPA (Environmental Protection Agency)	$571,595	0.2%	Rank history: #66 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; up 67 since FY2023.
72	GE Aviation Systems LLC Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security)	$562,252	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
73	Hitachi, Ltd. 2 awardees, including Hitachi High-Tech America, Inc. Top agencies Navy (Department of the Navy) WHS (DOD Washington Headquarters Service) HHS (Department of Health and Human Services)	$546,971	0.2%	Rank history: #91 in FY2021, #69 in FY2022, #64 in FY2023 and #55 in FY2025; down 9 since FY2023.
74	Williams Aerospace & Manufacturing Inc. Through Allclear Repair Services, Inc. Top agencies USAF (Department of the Air Force)	$541,756	0.2%	Rank history: #44 in FY2021, not on the FY2022 list, #59 in FY2023 and not on the FY2025 list; down 15 since FY2023.
75	Transdigm Group Incorporated 2 awardees, including Symetrics Industries, LLC and Transicoil LLC Top agencies USAF (Department of the Air Force)	$538,108	0.2%	Rank history: #36 in FY2021, #42 in FY2022, #57 in FY2023 and not on the FY2025 list; down 18 since FY2023.
76	Ontic Engineering and Manufacturing Inc. Top agencies USAF (Department of the Air Force)	$529,581	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
77	Faro Technologies Inc. Top agencies Navy (Department of the Navy) DOJ (Department of Justice) Army (Department of the Army)	$499,994	0.2%	Rank history: not on the FY2021 list, #92 in FY2022, not on the FY2023 list and not on the FY2025 list; up 73 since FY2023.
78	Franklin Young International, Incorporated Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) Navy (Department of the Navy)	$498,565	0.2%	Rank history: #58 in FY2021, #57 in FY2022, #67 in FY2023 and #63 in FY2025; down 11 since FY2023.
79	Innovative Solutions & Support Inc. Top agencies USAF (Department of the Air Force)	$496,049	0.2%	Rank history: not on the FY2021–FY2022 lists, #71 in FY2023 and not on the FY2025 list; down 8 since FY2023.
80	MKS Instruments Inc. 2 awardees, including Newport Corp and MKS Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) Commerce (Department of Commerce)	$492,570	0.2%	Rank history: #73 in FY2021, #78 in FY2022, #81 in FY2023 and not on the FY2025 list; up 1 since FY2023.
81	Miltenyi Biotec, Inc. Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy)	$492,097	0.2%	Rank history: #92 in FY2021, #66 in FY2022, #80 in FY2023 and not on the FY2025 list; down 1 since FY2023.
82	Fortive Corporation 4 awardees, including Fluke Electronics Corp, Advanced Sterilization Products Services Inc. and Censis Technologies, Inc. Top agencies Navy (Department of the Navy) VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$491,777	0.2%	Rank history: not on the FY2021–FY2023 lists and #59 in FY2025; up 57 since FY2023.
83	Diversified Laboratory Repair Inc. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) Smithsonian (Smithsonian Institution)	$480,993	0.2%	Rank history: #96 in FY2021, not on the FY2022 list, #75 in FY2023 and not on the FY2025 list; down 8 since FY2023.
84	Roche Holdings Inc. Through Roche Diagnostics Corporation Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$478,195	0.2%	Rank history: not on the FY2021–FY2023 lists and #61 in FY2025; new.
85	American Surgical Instrument Repair LLC Top agencies VA (Department of Veterans Affairs)	$476,516	0.2%	Rank history: not on the FY2021–FY2023 lists and #42 in FY2025; up 60 since FY2023.
86	Oxford Instruments America, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) EPA (Environmental Protection Agency)	$474,310	0.2%	Rank history: not on the FY2021–FY2023 lists and #86 in FY2025; new.
87	Fluid Handling LLC Through CMS Research Corp Top agencies Army (Department of the Army)	$472,862	0.2%	Rank history: not on the FY2021–FY2023 lists and #65 in FY2025; new.
88	Next Generation Analytics Inc. Top agencies Army (Department of the Army)	$463,000	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
89	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, #86 in FY2023 and not on the FY2025 list; down 3 since FY2023.
90	Peak Scientific Inc. Top agencies Navy (Department of the Navy) HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$459,479	0.2%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2023 and not on the FY2025 list; unchanged since FY2023.
91	Safepoint Scientific LLC Top agencies USDA (Department of Agriculture) VA (Department of Veterans Affairs)	$454,685	0.2%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2023 and #84 in FY2025; unchanged since FY2023.
92	Shimadzu America Inc. Through Shimadzu Scientific Instruments, Inc. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) EPA (Environmental Protection Agency)	$450,795	0.2%	Rank history: not on the FY2021–FY2023 lists and #75 in FY2025; new.
93	Edax, LLC Top agencies Navy (Department of the Navy) DOJ (Department of Justice) USAF (Department of the Air Force)	$449,337	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
94	Pacific Biosciences of California, Inc. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$444,951	0.2%	Rank history: #78 in FY2021, #75 in FY2022, #98 in FY2023 and #79 in FY2025; up 4 since FY2023.
95	Perkinelmer Inc. 3 awardees, including Revvity Health Sciences, Inc. and Perkinelmer Japan G.k. Top agencies HHS (Department of Health and Human Services) EPA (Environmental Protection Agency) Navy (Department of the Navy)	$432,786	0.2%	Rank history: #18 in FY2021, #13 in FY2022, #22 in FY2023 and not on the FY2025 list; down 73 since FY2023.
96	Mesh Inc. Top agencies Navy (Department of the Navy)	$428,928	0.1%	Rank history: #56 in FY2021, #93 in FY2022, #93 in FY2023 and #85 in FY2025; down 3 since FY2023.
97	Malvern Panalytical Inc. Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$422,891	0.1%	Rank history: not on the FY2021–FY2023 lists and #97 in FY2025; new.
98	Hydro, Inc. Top agencies HHS (Department of Health and Human Services)	$414,399	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 4 since FY2023.
99	Meggitt Aerospace Limited 2 awardees, including Parker-Hannifin Corporation Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$413,680	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
100	Landauer, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$412,980	0.1%	Rank history: not on the FY2021–FY2023 lists and #89 in FY2025; new.

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 $286 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 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