Top 100 Contractors in NAICS 325413: In-Vitro Diagnostic Substance Manufacturing, FY2025

Name: Top 100 Contractors in NAICS 325413: In-Vitro Diagnostic Substance Manufacturing, FY2025
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe

The top 10 won 55% of FY2025 NAICS 325413 contract dollars

Contract obligations: $175,464,471 Net of deobligations, by contracts coded NAICS 325413
Contractors: 191 Parent companies with an obligation
Largest contractor: Danaher Corporation $41 million, 16.8% of obligations
Data as of: Oct 23, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Danaher Corporation 8 awardees, including Cepheid, Beckman Coulter, Inc. and Beckman Coulter Gesellschaft MIT Beschraenkter Haftung Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$41,044,324	16.8%	Rank history: #4 in FY2021, #5 in FY2022, #11 in FY2023 and #1 in FY2024; unchanged since FY2024.
2	Biofire Defense LLC 5 awardees, including Biomerieux Inc., Biofire Diagnostics LLC and Biomerieux Deutschland GMBH Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Army (Department of the Army)	$26,060,137	10.7%	Rank history: #85 in FY2021, not on the FY2022–FY2023 lists and #6 in FY2024; up 4 since FY2024.
3	Roche Holdings Inc. 2 awardees, including Roche Diagnostics Corporation and Roche Diabetes Care Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Army (Department of the Army)	$19,629,554	8.1%	Rank history: not on the FY2021–FY2024 lists; new.
4	Biomerieux Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) Army (Department of the Army)	$11,160,346	4.6%	Rank history: #85 in FY2021, not on the FY2022–FY2023 lists and #6 in FY2024; up 2 since FY2024.
5	Abbott Laboratories Inc. 7 awardees, including Abbott Molecular Inc., Alere San Diego, Inc. and Fujirebio US, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Army (Department of the Army)	$9,615,623	3.9%	Rank history: #1 in FY2021, #2 in FY2022, #3 in FY2023 and #38 in FY2024; up 33 since FY2024.
6	Thermo Fisher Scientific Inc. 12 awardees, including Fisher Scientific Company L.L.C., One Lambda, Inc. and The Binding Site. Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$6,740,219	2.8%	Rank history: #3 in FY2021, #15 in FY2022, #20 in FY2023 and #7 in FY2024; up 1 since FY2024.
7	Hologic, Inc. 2 awardees, including Hologic Sales and Service, LLC Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs) Army (Department of the Army)	$6,682,847	2.7%	Rank history: #11 in FY2021, #14 in FY2022, #22 in FY2023 and #5 in FY2024; down 2 since FY2024.
8	Ortho-Clinical Diagnostics Inc. 5 awardees, including Quidel Corp Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$4,441,278	1.8%	Rank history: #5 in FY2021, #43 in FY2022, #71 in FY2023 and #21 in FY2024; up 13 since FY2024.
9	Siemens Corporation Through Siemens Healthcare Diagnostics Inc. Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) USAF (Department of the Air Force)	$4,149,994	1.7%	Rank history: not on the FY2021–FY2023 lists and #64 in FY2024; up 55 since FY2024.
10	Diasorin S.P.A. 3 awardees, including Diasorin Inc., Luminex Corp and Diasorin Molecular, LLC Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$3,613,465	1.5%	Rank history: not on the FY2021–FY2023 lists and #67 in FY2024; up 57 since FY2024.
11	Immucor Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Army (Department of the Army)	$2,945,020	1.2%	Rank history: #18 in FY2021, #20 in FY2022, #27 in FY2023 and #12 in FY2024; up 1 since FY2024.
12	Illumina, Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$2,474,800	1.0%	Rank history: #15 in FY2021, #29 in FY2022, #29 in FY2023 and #17 in FY2024; up 5 since FY2024.
13	Sysmex America Inc. Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs) Army (Department of the Army)	$2,342,467	1.0%	Rank history: not on the FY2021–FY2024 lists; new.
14	Werfen USA LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$2,273,290	0.9%	Rank history: #52 in FY2021, #54 in FY2022, #47 in FY2023 and #37 in FY2024; up 23 since FY2024.
15	Sebia, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$1,979,609	0.8%	Rank history: #42 in FY2021, #46 in FY2022, #38 in FY2023 and #23 in FY2024; up 8 since FY2024.
16	Government Scientific Source Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) HHS (Department of Health and Human Services)	$1,718,860	0.7%	Rank history: #20 in FY2021, #21 in FY2022, #32 in FY2023 and #27 in FY2024; up 11 since FY2024.
17	10X Genomics, Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$1,691,986	0.7%	Rank history: not on the FY2021 list, #33 in FY2022, #36 in FY2023 and #25 in FY2024; up 8 since FY2024.
18	Diagnostica Stago Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Army (Department of the Army)	$1,648,784	0.7%	Rank history: not on the FY2021–FY2023 lists and #99 in FY2024; up 81 since FY2024.
19	Qiagen, LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$1,596,772	0.7%	Rank history: #32 in FY2021, #50 in FY2022, #39 in FY2023 and #24 in FY2024; up 5 since FY2024.
20	Abbott Molecular Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$1,246,606	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
21	The Davinci Company, LLC Top agencies VA (Department of Veterans Affairs)	$1,152,634	0.5%	Rank history: not on the FY2021 list, #71 in FY2022, #35 in FY2023 and #29 in FY2024; up 8 since FY2024.
22	Bio-Rad Laboratories, Inc. 3 awardees Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) DARPA (Defense Advanced Research Projects Agency)	$1,058,523	0.4%	Rank history: #31 in FY2021, #41 in FY2022, #40 in FY2023 and #19 in FY2024; down 3 since FY2024.
23	Branch Medical LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Navy (Department of the Navy)	$829,574	0.3%	Rank history: #43 in FY2021, #47 in FY2022, #51 in FY2023 and #34 in FY2024; up 11 since FY2024.
24	Ortho-Clinical Diagnostics Singapore Pte. Ltd. Korea Branch Top agencies DHA (Defense Health Agency)	$792,814	0.3%	Rank history: #46 in FY2021, not on the FY2022 list, #52 in FY2023 and #49 in FY2024; up 25 since FY2024.
25	Grifols Diagnostic Solutions Inc. Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$776,906	0.3%	Rank history: not on the FY2021–FY2023 lists and #74 in FY2024; up 49 since FY2024.
26	Cardinal Health 200, LLC Top agencies VA (Department of Veterans Affairs)	$737,662	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
27	Agilent Technologies, Inc. 2 awardees Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$666,427	0.3%	Rank history: not on the FY2021–FY2023 lists and #50 in FY2024; up 23 since FY2024.
28	Atos Medical Inc. Top agencies VA (Department of Veterans Affairs)	$646,301	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
29	Summit Shoji Inc. Top agencies DLA (Defense Logistics Agency)	$633,923	0.3%	Rank history: not on the FY2021 list, #64 in FY2022, #50 in FY2023 and #33 in FY2024; up 4 since FY2024.
30	Charm Sciences Inc. Top agencies USDA (Department of Agriculture) DLA (Defense Logistics Agency)	$607,764	0.2%	Rank history: #44 in FY2021, #60 in FY2022, #59 in FY2023 and #42 in FY2024; up 12 since FY2024.
31	Qualtex Laboratories Top agencies DHA (Defense Health Agency)	$604,080	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
32	Medpharm Inc. Top agencies DHA (Defense Health Agency)	$601,314	0.2%	Rank history: #75 in FY2021, #70 in FY2022, #75 in FY2023 and not on the FY2024 list; up 134 since FY2024.
33	ASE Direct, Inc. Top agencies VA (Department of Veterans Affairs)	$572,758	0.2%	Rank history: #19 in FY2021, #23 in FY2022, #33 in FY2023 and #11 in FY2024; down 22 since FY2024.
34	Reidy Medical Supply Inc. Top agencies VA (Department of Veterans Affairs)	$558,050	0.2%	Rank history: not on the FY2021–FY2023 lists and #63 in FY2024; up 29 since FY2024.
35	Phadia US Inc. Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$521,849	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
36	Cidichem S.R.L. Top agencies Navy (Department of the Navy)	$514,991	0.2%	Rank history: not on the FY2021–FY2023 lists and #72 in FY2024; up 36 since FY2024.
37	Medela LLC 2 awardees Top agencies VA (Department of Veterans Affairs)	$471,331	0.2%	Rank history: not on the FY2021–FY2023 lists and #78 in FY2024; up 41 since FY2024.
38	Henry Schein, Inc. Top agencies DHA (Defense Health Agency)	$461,976	0.2%	Rank history: #57 in FY2021, #68 in FY2022, #68 in FY2023 and #53 in FY2024; up 15 since FY2024.
39	Cytopath Biopsy Lab Inc. Top agencies VA (Department of Veterans Affairs)	$450,000	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
40	SL Meditech Co. Top agencies DHA (Defense Health Agency)	$445,800	0.2%	Rank history: not on the FY2021–FY2023 lists and #66 in FY2024; up 26 since FY2024.
41	Promega Corporation Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$415,517	0.2%	Rank history: #54 in FY2021, #61 in FY2022, #57 in FY2023 and #59 in FY2024; up 18 since FY2024.
42	Polymedco LLC 2 awardees, including Polymedco Cancer Diagnostic Products LLC Top agencies VA (Department of Veterans Affairs)	$409,177	0.2%	Rank history: #87 in FY2021, #67 in FY2022, #65 in FY2023 and #56 in FY2024; up 14 since FY2024.
43	Bracco Diagnostics Inc. Top agencies DHA (Defense Health Agency)	$407,844	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
44	Immuno Mycologies Inc. Top agencies VA (Department of Veterans Affairs)	$382,541	0.2%	Rank history: not on the FY2021–FY2023 lists and #70 in FY2024; up 26 since FY2024.
45	Cencora, Inc. 2 awardees, including Amerisourcebergen Drug Corp and ASD Specialty Healthcare, LLC Top agencies VA (Department of Veterans Affairs)	$362,602	0.1%	Rank history: not on the FY2021–FY2023 lists and #9 in FY2024; down 36 since FY2024.
46	Red Heritage Medical LLC Top agencies HHS (Department of Health and Human Services)	$341,500	0.1%	Rank history: not on the FY2021–FY2023 lists and #86 in FY2024; up 40 since FY2024.
47	Ahlstrom USA Inc. Top agencies DHA (Defense Health Agency)	$324,160	0.1%	Rank history: #74 in FY2021, #79 in FY2022, #67 in FY2023 and #57 in FY2024; up 10 since FY2024.
48	Alamar Biosciences, Inc. Top agencies HHS (Department of Health and Human Services)	$324,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
49	Vmrd Inc. Top agencies USDA (Department of Agriculture)	$320,709	0.1%	Rank history: #96 in FY2021, not on the FY2022 list, #77 in FY2023 and #82 in FY2024; up 33 since FY2024.
50	Alba Bioscience, Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) DHA (Defense Health Agency)	$306,225	0.1%	Rank history: #72 in FY2021, #87 in FY2022, #80 in FY2023 and #69 in FY2024; up 19 since FY2024.
51	Bighorn Ridgerunners, LLC Top agencies HHS (Department of Health and Human Services)	$298,000	0.1%	Rank history: not on the FY2021–FY2024 lists; up 131 since FY2024.
52	Cerus Corporation Top agencies DHA (Defense Health Agency)	$287,400	0.1%	Rank history: not on the FY2021 list, #90 in FY2022, #89 in FY2023 and #87 in FY2024; up 35 since FY2024.
53	Tosoh Bioscience, Inc. Top agencies VA (Department of Veterans Affairs)	$284,965	0.1%	Rank history: not on the FY2021–FY2023 lists and #79 in FY2024; up 26 since FY2024.
54	Meso Scale Diagnostics LLC Top agencies Navy (Department of the Navy) USUHS (DOD Uniformed Services University of the Health Sciences) HHS (Department of Health and Human Services)	$268,061	0.1%	Rank history: #16 in FY2021, #35 in FY2022, #46 in FY2023 and #52 in FY2024; down 2 since FY2024.
55	Zeus Scientific, LLC Top agencies VA (Department of Veterans Affairs)	$262,423	0.1%	Rank history: not on the FY2021–FY2023 lists and #71 in FY2024; up 16 since FY2024.
56	Quidelortho Sales Company, LLC Top agencies DHA (Defense Health Agency)	$262,017	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
57	Franklin Young International, Incorporated Top agencies DHA (Defense Health Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$249,689	0.1%	Rank history: #73 in FY2021, #97 in FY2022, #86 in FY2023 and #65 in FY2024; up 8 since FY2024.
58	Speed Biosystems, LLC Top agencies HHS (Department of Health and Human Services)	$248,930	0.1%	Rank history: #50 in FY2021, #77 in FY2022, #81 in FY2023 and not on the FY2024 list; returned.
59	Advanced Instruments LLC Through Nova Biomedical Corp Top agencies DHA (Defense Health Agency)	$240,466	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
60	Orasure Technologies Inc. Top agencies HHS (Department of Health and Human Services) DLA (Defense Logistics Agency)	$238,749	0.1%	Rank history: #10 in FY2021, #59 in FY2022, #9 in FY2023 and not on the FY2024 list; returned.
61	Cambridge Isotope Laboratories Inc. Top agencies HHS (Department of Health and Human Services)	$233,095	0.1%	Rank history: not on the FY2021–FY2023 lists and #100 in FY2024; up 39 since FY2024.
62	Veterans Healthcare Supply Solutions, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$230,294	0.1%	Rank history: #12 in FY2021, #18 in FY2022, #62 in FY2023 and not on the FY2024 list; returned.
63	Helena Laboratories Corporation Top agencies VA (Department of Veterans Affairs)	$228,298	0.1%	Rank history: not on the FY2021–FY2023 lists and #88 in FY2024; up 25 since FY2024.
64	Caredx, Inc. Top agencies VA (Department of Veterans Affairs)	$221,579	0.1%	Rank history: not on the FY2021–FY2023 lists and #96 in FY2024; up 32 since FY2024.
65	Derrah Morrison Enterprises LLC Top agencies VA (Department of Veterans Affairs)	$199,745	0.1%	Rank history: not on the FY2021–FY2024 lists; up 43 since FY2024.
66	Meta Systems Group Inc. Top agencies VA (Department of Veterans Affairs)	$198,900	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
67	J & N Marketing, Inc. Top agencies HHS (Department of Health and Human Services)	$198,301	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
68	Hawaii Department of Health Top agencies DHA (Defense Health Agency)	$195,300	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
69	Aptagen LLC Top agencies DHA (Defense Health Agency)	$194,220	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
70	Neogen Corp Top agencies USDA (Department of Agriculture)	$193,835	0.1%	Rank history: not on the FY2021–FY2024 lists; up 36 since FY2024.
71	Pharmacy Buying Association, Inc. Top agencies VA (Department of Veterans Affairs)	$189,875	0.1%	Rank history: not on the FY2021 list, #38 in FY2022, #43 in FY2023 and #48 in FY2024; down 23 since FY2024.
72	Hardy Diagnostics Top agencies HHS (Department of Health and Human Services)	$188,570	0.1%	Rank history: not on the FY2021–FY2022 lists, #93 in FY2023 and #76 in FY2024; up 4 since FY2024.
73	Therakos LLC Top agencies HHS (Department of Health and Human Services)	$181,860	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
74	Meditrade Medical Trading GMBH Top agencies DHA (Defense Health Agency)	$180,394	0.1%	Rank history: not on the FY2021–FY2022 lists, #42 in FY2023 and not on the FY2024 list; returned.
75	SZY Holdings, LLC Top agencies DLA (Defense Logistics Agency)	$179,137	0.1%	Rank history: #93 in FY2021, not on the FY2022–FY2023 lists and #80 in FY2024; up 5 since FY2024.
76	Regimed Medical Top agencies VA (Department of Veterans Affairs)	$172,692	0.1%	Rank history: not on the FY2021–FY2024 lists; up 67 since FY2024.
77	Mapp Biopharmaceutical, Inc. Top agencies DHA (Defense Health Agency)	$171,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
78	Asuragen Incorporated Top agencies Army (Department of the Army)	$169,115	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
79	Grace International Services LLC Top agencies VA (Department of Veterans Affairs)	$164,400	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
80	Edge Biosystems Inc. Top agencies DHA (Defense Health Agency)	$160,784	0.1%	Rank history: not on the FY2021–FY2024 lists; up 31 since FY2024.
81	McKesson Corporation 2 awardees, including Mckesson Medical-Surgical Government Solutions LLC Top agencies HHS (Department of Health and Human Services) DLA (Defense Logistics Agency)	$150,793	0.1%	Rank history: not on the FY2021–FY2023 lists and #85 in FY2024; up 4 since FY2024.
82	Trilink Biotechnologies, LLC Top agencies EPA (Environmental Protection Agency)	$150,000	0.1%	Rank history: not on the FY2021–FY2024 lists; up 120 since FY2024.
83	STG Korea Inc. Top agencies DHA (Defense Health Agency)	$141,879	0.1%	Rank history: not on the FY2021–FY2024 lists; up 121 since FY2024.
84	Communications Professionals Inc. Top agencies USDA (Department of Agriculture)	$138,104	0.1%	Rank history: not on the FY2021–FY2024 lists; up 21 since FY2024.
85	Bio-Techne Sales Corporation Top agencies Army (Department of the Army) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$135,389	0.1%	Rank history: not on the FY2021–FY2024 lists; up 93 since FY2024.
86	Terumo BCT Inc. Top agencies HHS (Department of Health and Human Services)	$135,367	0.1%	Rank history: not on the FY2021–FY2023 lists and #47 in FY2024; down 39 since FY2024.
87	University System of Maryland Through University of Maryland, Baltimore Top agencies VA (Department of Veterans Affairs)	$132,940	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
88	Invetech US LLC Top agencies HHS (Department of Health and Human Services)	$124,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
89	Alfresa Corporation Top agencies DLA (Defense Logistics Agency)	$115,030	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 25 since FY2024.
90	Oxford Nanopore Technologies, Inc. Top agencies HHS (Department of Health and Human Services)	$114,702	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 17 since FY2024.
91	Geo-Med, LLC Top agencies VA (Department of Veterans Affairs)	$111,781	<0.1%	Rank history: #60 in FY2021, not on the FY2022–FY2023 lists and #46 in FY2024; down 45 since FY2024.
92	Genmark Diagnostics Inc. Top agencies VA (Department of Veterans Affairs)	$111,512	<0.1%	Rank history: #7 in FY2021, #4 in FY2022, #5 in FY2023 and #3 in FY2024; down 89 since FY2024.
93	Streck LLC Top agencies VA (Department of Veterans Affairs)	$106,888	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
94	GEN-Probe Incorporated Top agencies DHA (Defense Health Agency)	$106,500	<0.1%	Rank history: not on the FY2021 list, #44 in FY2022, #23 in FY2023 and not on the FY2024 list; returned.
95	POC Korea Ltd. Top agencies DHA (Defense Health Agency)	$103,728	<0.1%	Rank history: not on the FY2021–FY2022 lists, #85 in FY2023 and not on the FY2024 list; up 20 since FY2024.
96	Gulf Corporation for Technology W.l.l Top agencies Navy (Department of the Navy)	$102,749	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
97	Lonza Walkersville Inc. Top agencies HHS (Department of Health and Human Services)	$98,547	<0.1%	Rank history: not on the FY2021–FY2023 lists and #94 in FY2024; down 3 since FY2024.
98	Parsons Corporation Through Parsons Government Services Inc. Top agencies DHS (Department of Homeland Security)	$98,127	<0.1%	Rank history: not on the FY2021 list, #13 in FY2022, #18 in FY2023 and not on the FY2024 list; returned.
99	Chembio Diagnostic Systems Inc. Top agencies USDA (Department of Agriculture)	$96,348	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 20 since FY2024.
100	Biocare Medical LLC Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$88,061	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 2 since FY2024.

Show 75 more

100 of 191 contractors listed here. See the rest on GovTribe.

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 $244 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. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. 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 2025 ran Oct 1, 2024 – Sep 30, 2025. 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 FY2024. "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 FY2024 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 NAICS 325413 contractors in FY2025?

1. Danaher Corporation ($41M), 2. Biofire Defense LLC ($26.1M), 3. Roche Holdings Inc. ($19.6M), 4. Biomerieux Inc. ($11.2M), 5. Abbott Laboratories Inc. ($9.62M), 6. Thermo Fisher Scientific Inc. ($6.74M), 7. Hologic, Inc. ($6.68M), 8. Ortho-Clinical Diagnostics Inc. ($4.44M), 9. Siemens Corporation ($4.15M), 10. Diasorin S.P.A. ($3.61M).

On GovTribe

Research every contractor on this list

Every contract, task order and IDV they hold
Their subsidiaries, teammates and competitors
Open opportunities they're positioned for
Alerts when they win new work

Try for free Login