Top 100 Contractors in NAICS 6215: Medical and Diagnostic Laboratories, FY2024

Name: Top 100 Contractors in NAICS 6215: Medical and Diagnostic Laboratories, FY2024
Creator: GovTribe

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

The top 10 won 53% of FY2024 NAICS 6215 contract dollars

Contract obligations: $479,436,514 Net of deobligations, by contracts coded NAICS 6215 or a code under it
Contractors: 569 Parent companies with an obligation
Largest contractor: Laboratory Corporation of America $111 million, 18.5% 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	Laboratory Corporation of America 7 awardees, including Center for Disease Detection, LLC, Labcorp Oklahoma Inc. and Medtox Laboratories Inc. Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs) Army (Department of the Army)	$111,229,044	18.5%	Rank history: #14 in FY2021, #8 in FY2022, #2 in FY2023 and #1 in FY2025; up 1 since FY2023.
2	Quest Diagnostics Incorporated 7 awardees, including Diagnostic Laboratory of Oklahoma LLC, Ameripath Inc. and Quest Diagnostics of Puerto Rico Inc. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) HHS (Department of Health and Human Services)	$104,386,861	17.4%	Rank history: #5 in FY2021, #4 in FY2022, #1 in FY2023 and #2 in FY2025; down 1 since FY2023.
3	Roche Diabetes Care Inc Through Foundation Medicine, Inc. Top agencies VA (Department of Veterans Affairs)	$23,245,082	3.9%	Rank history: not on the FY2021–FY2022 lists, #5 in FY2023 and not on the FY2025 list; up 2 since FY2023.
4	SNA International LLC Top agencies OSD (Office of the Secretary of Defense) WHS (DOD Washington Headquarters Service)	$17,407,755	2.9%	Rank history: not on the FY2021 list, #11 in FY2022, #6 in FY2023 and #5 in FY2025; up 2 since FY2023.
5	Valor Network, Inc. Top agencies DHA (Defense Health Agency) DHS (Department of Homeland Security) VA (Department of Veterans Affairs)	$15,535,020	2.6%	Rank history: #24 in FY2021, #12 in FY2022, #7 in FY2023 and #4 in FY2025; up 2 since FY2023.
6	Ansible Government Solutions LLC Top agencies VA (Department of Veterans Affairs)	$12,092,614	2.0%	Rank history: not on the FY2021 list, #69 in FY2022, #8 in FY2023 and not on the FY2025 list; up 2 since FY2023.
7	Arlluk Technology Solutions LLC Top agencies USAF (Department of the Air Force)	$10,918,050	1.8%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
8	Tempus AI, Inc. Top agencies VA (Department of Veterans Affairs)	$10,124,643	1.7%	Rank history: not on the FY2021 list, #23 in FY2022, #40 in FY2023 and #14 in FY2025; up 32 since FY2023.
9	Vetmed Group LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$6,989,980	1.2%	Rank history: not on the FY2021–FY2023 lists and #6 in FY2025; up 99 since FY2023.
10	Government Imaging Services LLC Top agencies VA (Department of Veterans Affairs)	$6,556,061	1.1%	Rank history: #33 in FY2021, #21 in FY2022, #16 in FY2023 and #15 in FY2025; up 6 since FY2023.
11	Abbott Laboratories Inc. 3 awardees, including Pembrooke Occupational Health, Inc., Alere Toxicology Services, Inc. and Redwood Toxicology Laboratory, Inc. Top agencies OSD (Office of the Secretary of Defense) DOT (Department of Transportation) DOJ (Department of Justice)	$6,361,278	1.1%	Rank history: not on the FY2021–FY2023 lists and #20 in FY2025; new.
12	The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc. Top agencies DHA (Defense Health Agency)	$4,922,653	0.8%	Rank history: #25 in FY2021, #16 in FY2022, #10 in FY2023 and #7 in FY2025; down 2 since FY2023.
13	Fulgent Genetics, Inc. 2 awardees, including Fulgent Therapeutics LLC Top agencies VA (Department of Veterans Affairs)	$4,583,914	0.8%	Rank history: #10 in FY2021, #20 in FY2022, #36 in FY2023 and #11 in FY2025; up 23 since FY2023.
14	MCI Diagnostic Center LLC Top agencies DOL (Department of Labor) VA (Department of Veterans Affairs) Army (Department of the Army)	$4,242,173	0.7%	Rank history: not on the FY2021–FY2022 lists, #9 in FY2023 and not on the FY2025 list; down 5 since FY2023.
15	Sonora Quest Laboratories LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$4,151,517	0.7%	Rank history: not on the FY2021–FY2023 lists and #18 in FY2025; new.
16	Mayo Collaborative Services, Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$3,910,261	0.7%	Rank history: #88 in FY2021, not on the FY2022–FY2023 lists and #13 in FY2025; returned.
17	Mayo Clinic Through Mayo Collaborative Services, Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$3,564,505	0.6%	Rank history: #19 in FY2021, #22 in FY2022, #13 in FY2023 and not on the FY2025 list; down 4 since FY2023.
18	Northern Plains Laboratory LLC Top agencies HHS (Department of Health and Human Services) Army (Department of the Army)	$3,532,369	0.6%	Rank history: #35 in FY2021, #28 in FY2022, #18 in FY2023 and #16 in FY2025; unchanged since FY2023.
19	Arup Laboratories Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$3,444,908	0.6%	Rank history: not on the FY2021–FY2023 lists and #12 in FY2025; new.
20	Family Health International Top agencies USAID (US Agency for International Development)	$3,390,000	0.6%	Rank history: not on the FY2021–FY2023 lists and #9 in FY2025; new.
21	Diagnostic Imaging Associates, Inc. Top agencies HHS (Department of Health and Human Services)	$3,224,256	0.5%	Rank history: #44 in FY2021, #31 in FY2022, #28 in FY2023 and #24 in FY2025; up 7 since FY2023.
22	Mystic Ventures Group LLC Top agencies VA (Department of Veterans Affairs)	$3,079,850	0.5%	Rank history: #38 in FY2021, #44 in FY2022, #23 in FY2023 and #22 in FY2025; up 1 since FY2023.
23	Advanced Imaging Management LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) DOJ (Department of Justice)	$3,044,236	0.5%	Rank history: not on the FY2021–FY2023 lists and #33 in FY2025; new.
24	Shared Medical Services Inc. Top agencies VA (Department of Veterans Affairs)	$2,788,247	0.5%	Rank history: not on the FY2021 list, #50 in FY2022, #27 in FY2023 and #31 in FY2025; up 3 since FY2023.
25	Tatitlek Federal Services LLC Top agencies Army (Department of the Army)	$2,781,679	0.5%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2025; new.
26	Cherokee Nation Operational Solutions, L.L.C. Top agencies HHS (Department of Health and Human Services)	$2,634,179	0.4%	Rank history: not on the FY2021–FY2022 lists, #31 in FY2023 and #28 in FY2025; up 5 since FY2023.
27	Neogenomics Inc. Through Neogenomics Laboratories, Inc. Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$2,573,860	0.4%	Rank history: not on the FY2021–FY2023 lists and #32 in FY2025; new.
28	Oregon Health & Science University Top agencies VA (Department of Veterans Affairs)	$2,502,741	0.4%	Rank history: #31 in FY2021, #55 in FY2022, #35 in FY2023 and #23 in FY2025; up 7 since FY2023.
29	Riverside Radiology and Interventional Associates, Inc. Top agencies VA (Department of Veterans Affairs)	$2,465,124	0.4%	Rank history: #55 in FY2021, #37 in FY2022, #32 in FY2023 and not on the FY2025 list; up 3 since FY2023.
30	Exact Sciences Corporation 4 awardees, including Preventiongenetics LLC and Genomic Health, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) USAF (Department of the Air Force)	$2,322,810	0.4%	Rank history: #20 in FY2021, #60 in FY2022, #26 in FY2023 and #30 in FY2025; down 4 since FY2023.
31	Creative Testing Solutions Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$2,250,815	0.4%	Rank history: #54 in FY2021, #25 in FY2022, #46 in FY2023 and #21 in FY2025; up 15 since FY2023.
32	Appddictionstudio Limited Liability Company Top agencies USAF (Department of the Air Force)	$2,152,772	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
33	Ginkgo Bioworks Holdings Inc. Through Ginkgo Bioworks, Inc. Top agencies HHS (Department of Health and Human Services)	$2,011,282	0.3%	Rank history: not on the FY2021–FY2023 lists and #39 in FY2025; new.
34	Psomagen Inc. Top agencies HHS (Department of Health and Human Services)	$1,984,405	0.3%	Rank history: not on the FY2021–FY2023 lists and #84 in FY2025; new.
35	Mariano Prime LLC Top agencies DHA (Defense Health Agency)	$1,973,961	0.3%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2025; new.
36	Radiology Professional Management, LLC Top agencies VA (Department of Veterans Affairs)	$1,879,839	0.3%	Rank history: #65 in FY2021, #62 in FY2022, #34 in FY2023 and not on the FY2025 list; down 2 since FY2023.
37	Insight Health Corp. Top agencies VA (Department of Veterans Affairs)	$1,749,947	0.3%	Rank history: #90 in FY2021, #65 in FY2022, #41 in FY2023 and not on the FY2025 list; up 4 since FY2023.
38	DST Innovation GMBH Top agencies DOS (Department of State)	$1,729,015	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
39	Maxmed Healthcare Inc. Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$1,647,452	0.3%	Rank history: #70 in FY2021, #64 in FY2022, not on the FY2023 list and #54 in FY2025; up 64 since FY2023.
40	Labcorp Oklahoma Inc. Top agencies HHS (Department of Health and Human Services)	$1,620,848	0.3%	Rank history: not on the FY2021–FY2022 lists, #38 in FY2023 and #25 in FY2025; down 2 since FY2023.
41	Ibex It Business Experts LLC Top agencies DHA (Defense Health Agency)	$1,497,533	0.2%	Rank history: not on the FY2021–FY2022 lists, #48 in FY2023 and #42 in FY2025; up 7 since FY2023.
42	University of Texas System 3 awardees, including The University of Texas Southwestern Medical Center, The University of Texas Health Science Center At San Antonio and The University of Texas Health Science Center At Tyler Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$1,489,847	0.2%	Rank history: not on the FY2021 list, #45 in FY2022, not on the FY2023 list and not on the FY2025 list; up 60 since FY2023.
43	University of Wisconsin System 2 awardees, including University of Wisconsin Hospitals and Clinics Authority Top agencies VA (Department of Veterans Affairs)	$1,465,270	0.2%	Rank history: not on the FY2021 list, #84 in FY2022, #54 in FY2023 and not on the FY2025 list; up 11 since FY2023.
44	The Leland Stanford Junior University 3 awardees, including Stanford Health Care and Stanford Hospital & Clinics Top agencies VA (Department of Veterans Affairs)	$1,441,061	0.2%	Rank history: #48 in FY2021, #48 in FY2022, not on the FY2023 list and not on the FY2025 list; up 70 since FY2023.
45	Upmc Presbyterian Shadyside Top agencies VA (Department of Veterans Affairs)	$1,406,905	0.2%	Rank history: not on the FY2021–FY2023 lists and #50 in FY2025; new.
46	All Valley Imaging, L.l.c Top agencies HHS (Department of Health and Human Services)	$1,372,043	0.2%	Rank history: #64 in FY2021, #56 in FY2022, #50 in FY2023 and #66 in FY2025; up 4 since FY2023.
47	White Mountain Radiology, P.L.L.C. Top agencies HHS (Department of Health and Human Services)	$1,366,835	0.2%	Rank history: not on the FY2021–FY2022 lists, #52 in FY2023 and #45 in FY2025; up 5 since FY2023.
48	Navitas Clinical Research Inc. Top agencies HHS (Department of Health and Human Services)	$1,365,906	0.2%	Rank history: not on the FY2021–FY2023 lists and #52 in FY2025; new.
49	State of California Controllers Office 5 awardees, including California Department of Public Health, University of California, Davis and Ucla Department of Pathology & Laboratory Medicine Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$1,336,750	0.2%	Rank history: #45 in FY2021, #39 in FY2022, #45 in FY2023 and not on the FY2025 list; down 4 since FY2023.
50	Trinity Health Corporation 2 awardees, including Loyola University Health System Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$1,329,201	0.2%	Rank history: #86 in FY2021, not on the FY2022 list, #77 in FY2023 and not on the FY2025 list; up 27 since FY2023.
51	Danaher Corporation 2 awardees, including Cepheid and Beckman Coulter Gesellschaft MIT Beschraenkter Haftung Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$1,295,459	0.2%	Rank history: #36 in FY2021, #76 in FY2022, #39 in FY2023 and #53 in FY2025; down 12 since FY2023.
52	IS Healthcare LLC Top agencies VA (Department of Veterans Affairs)	$1,283,716	0.2%	Rank history: #56 in FY2021, #52 in FY2022, #71 in FY2023 and #41 in FY2025; up 19 since FY2023.
53	University of Utah 2 awardees, including Arup Laboratories Inc. Top agencies VA (Department of Veterans Affairs)	$1,225,727	0.2%	Rank history: #23 in FY2021, #17 in FY2022, #12 in FY2023 and not on the FY2025 list; down 41 since FY2023.
54	Baylor Miraca Genetics Laboratories LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$1,217,602	0.2%	Rank history: not on the FY2021–FY2023 lists and #8 in FY2025; new.
55	South Carolina State of Through Medical University Hospital Authority Top agencies VA (Department of Veterans Affairs)	$1,207,862	0.2%	Rank history: not on the FY2021 list, #94 in FY2022, not on the FY2023 list and #82 in FY2025; up 92 since FY2023.
56	Aegis Toxicology Sciences Corporation Through Aegis Sciences Corporation Top agencies HHS (Department of Health and Human Services)	$1,135,113	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
57	Koninklijke Philips N.V. Through Cardionet, LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$1,132,280	0.2%	Rank history: not on the FY2021–FY2022 lists, #85 in FY2023 and not on the FY2025 list; up 28 since FY2023.
58	Siemens Corporation 2 awardees, including Varian Medical Systems, Inc. and Siemens Medical Solutions Usa, Inc. Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$1,132,164	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
59	Cardionet LLC Top agencies VA (Department of Veterans Affairs)	$1,085,982	0.2%	Rank history: not on the FY2021–FY2023 lists and #68 in FY2025; new.
60	Regents of the University of Michigan Top agencies VA (Department of Veterans Affairs)	$1,056,913	0.2%	Rank history: #89 in FY2021, not on the FY2022 list, #70 in FY2023 and #71 in FY2025; up 10 since FY2023.
61	Genscript USA Inc. Top agencies HHS (Department of Health and Human Services)	$1,026,000	0.2%	Rank history: #71 in FY2021, #68 in FY2022, #63 in FY2023 and #60 in FY2025; up 2 since FY2023.
62	Redhawk Group International, LLC Top agencies VA (Department of Veterans Affairs)	$994,525	0.2%	Rank history: not on the FY2021 list, #40 in FY2022, #24 in FY2023 and #27 in FY2025; down 38 since FY2023.
63	The University of Iowa Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$984,383	0.2%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2023 and #65 in FY2025; up 28 since FY2023.
64	Veracyte, Inc. 2 awardees, including Veracyte Labs SD Corporation Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$937,658	0.2%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2023 and #44 in FY2025; up 1 since FY2023.
65	Clinical Imaging Systems, Inc. Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$929,365	0.2%	Rank history: not on the FY2021 list, #92 in FY2022, #67 in FY2023 and not on the FY2025 list; up 2 since FY2023.
66	Brigham & Womens Hospital Inc 2 awardees, including The General Hospital Corporation Top agencies VA (Department of Veterans Affairs)	$893,582	0.1%	Rank history: not on the FY2021 list, #87 in FY2022, #55 in FY2023 and #87 in FY2025; down 11 since FY2023.
67	Brigade Medical Services Inc. Top agencies VA (Department of Veterans Affairs)	$891,152	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
68	BTL Technologies, Inc. Top agencies VA (Department of Veterans Affairs)	$878,388	0.1%	Rank history: #76 in FY2021, not on the FY2022–FY2023 lists and #76 in FY2025; returned.
69	Vanderbelt University Medical Center Through Vanderbilt University Medical Center Top agencies VA (Department of Veterans Affairs)	$867,940	0.1%	Rank history: #77 in FY2021, #57 in FY2022, #51 in FY2023 and not on the FY2025 list; down 18 since FY2023.
70	QPS Austria GMBH Top agencies HHS (Department of Health and Human Services)	$866,800	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
71	Physicians Laboratory, P.C. Top agencies VA (Department of Veterans Affairs)	$863,246	0.1%	Rank history: not on the FY2021 list, #53 in FY2022, #66 in FY2023 and #56 in FY2025; down 5 since FY2023.
72	Laboratory Corporation of America Holdings 5 awardees, including Laboratory Corporation of America and NWT Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) USAF (Department of the Air Force)	$861,885	0.1%	Rank history: #4 in FY2021, #3 in FY2022, #4 in FY2023 and #48 in FY2025; down 68 since FY2023.
73	Caredx, Inc. Top agencies VA (Department of Veterans Affairs)	$859,023	0.1%	Rank history: not on the FY2021 list, #49 in FY2022, #33 in FY2023 and #19 in FY2025; down 40 since FY2023.
74	Labstat International Inc. Top agencies HHS (Department of Health and Human Services)	$802,651	0.1%	Rank history: not on the FY2021 list, #42 in FY2022, not on the FY2023 list and not on the FY2025 list; up 31 since FY2023.
75	Virginia Polytechnic Institute & State University Through Department of General Services Virginia Top agencies DHA (Defense Health Agency)	$772,800	0.1%	Rank history: #98 in FY2021, not on the FY2022 list, #97 in FY2023 and not on the FY2025 list; up 22 since FY2023.
76	Research Triangle Institute Top agencies HHS (Department of Health and Human Services)	$766,467	0.1%	Rank history: not on the FY2021 list, #35 in FY2022, #20 in FY2023 and #91 in FY2025; down 56 since FY2023.
77	Diagnostic Laboratory Services, Inc. Top agencies HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$756,572	0.1%	Rank history: not on the FY2021–FY2023 lists and #57 in FY2025; new.
78	Cytopath Biopsy Lab Inc. Top agencies VA (Department of Veterans Affairs)	$696,142	0.1%	Rank history: not on the FY2021–FY2023 lists and #51 in FY2025; new.
79	San Diego Pathologists Medical Group, Inc. Top agencies VA (Department of Veterans Affairs)	$682,682	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 28 since FY2023.
80	Metabolon, Inc. Top agencies HHS (Department of Health and Human Services)	$680,800	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 70 since FY2023.
81	Med-Share Inc. Top agencies DOJ (Department of Justice) HHS (Department of Health and Human Services)	$673,575	0.1%	Rank history: #82 in FY2021, #61 in FY2022, #53 in FY2023 and #55 in FY2025; down 28 since FY2023.
82	Mdxhealth Inc. Top agencies VA (Department of Veterans Affairs)	$671,210	0.1%	Rank history: not on the FY2021–FY2022 lists, #89 in FY2023 and #95 in FY2025; up 7 since FY2023.
83	Central TOX LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$667,956	0.1%	Rank history: not on the FY2021–FY2022 lists, #82 in FY2023 and #83 in FY2025; down 1 since FY2023.
84	University of California, LOS Angeles Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$648,101	0.1%	Rank history: not on the FY2021–FY2023 lists and #99 in FY2025; new.
85	National Medical Services, Inc. Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice) VA (Department of Veterans Affairs)	$624,997	0.1%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2023 and #79 in FY2025; up 9 since FY2023.
86	Assured Imaging Womens Wellness of Southern Arizona LLC Top agencies HHS (Department of Health and Human Services)	$604,758	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 38 since FY2023.
87	Advent-Reef JV LLC Top agencies USAF (Department of the Air Force)	$596,118	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 17 since FY2023.
88	Dhhs State Public Health Lab Top agencies DHA (Defense Health Agency)	$588,720	0.1%	Rank history: not on the FY2021–FY2023 lists and #92 in FY2025; new.
89	Veracyte Labs SD Corporation Top agencies VA (Department of Veterans Affairs)	$583,787	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
90	Bloodworks Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$575,386	0.1%	Rank history: #52 in FY2021, #81 in FY2022, #84 in FY2023 and #37 in FY2025; down 6 since FY2023.
91	Natera Inc. Top agencies VA (Department of Veterans Affairs)	$546,347	0.1%	Rank history: not on the FY2021 list, #32 in FY2022, #98 in FY2023 and not on the FY2025 list; up 7 since FY2023.
92	Techne Corporation Through Exosome Diagnostics Inc. Top agencies VA (Department of Veterans Affairs)	$541,846	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 250 since FY2023.
93	South Central Pathology Lab Pa Top agencies VA (Department of Veterans Affairs)	$537,753	0.1%	Rank history: not on the FY2021 list, #80 in FY2022, #96 in FY2023 and #63 in FY2025; up 3 since FY2023.
94	Peninsula Histopathology Laboratory Inc. Top agencies VA (Department of Veterans Affairs)	$535,197	0.1%	Rank history: not on the FY2021 list, #89 in FY2022, #64 in FY2023 and #88 in FY2025; down 30 since FY2023.
95	Amprion, Inc. Top agencies HHS (Department of Health and Human Services)	$528,000	0.1%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2023 and #81 in FY2025; down 36 since FY2023.
96	Chesapeake Toxicology Resources, LLC Top agencies DOT (Department of Transportation)	$512,457	0.1%	Rank history: not on the FY2021–FY2023 lists and #93 in FY2025; up 25 since FY2023.
97	Chenega Tri-Services, LLC Top agencies DHA (Defense Health Agency)	$475,519	0.1%	Rank history: not on the FY2021–FY2023 lists and #96 in FY2025; new.
98	American Veteran Contracting Solutions LLC Top agencies VA (Department of Veterans Affairs)	$468,000	0.1%	Rank history: not on the FY2021–FY2022 lists, #99 in FY2023 and #100 in FY2025; up 1 since FY2023.
99	Bronze Star Industries, Inc. Top agencies HHS (Department of Health and Human Services)	$450,988	0.1%	Rank history: #92 in FY2021, #95 in FY2022, #88 in FY2023 and not on the FY2025 list; down 11 since FY2023.
100	Othram Inc. Top agencies DOI (Department of the Interior)	$443,868	0.1%	Rank history: not on the FY2021–FY2022 lists, #80 in FY2023 and not on the FY2025 list; down 20 since FY2023.

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100 of 569 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 6215

Code	Net obligations	Largest contractor
62151 Medical and Diagnostic Laboratories	$479,436,514	Laboratory Corporation of America

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 $600 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

Who were the top 10 NAICS 6215 contractors in FY2024?

1. Laboratory Corporation of America ($111M), 2. Quest Diagnostics Incorporated ($104M), 3. Roche Diabetes Care Inc ($23.2M), 4. SNA International LLC ($17.4M), 5. Valor Network, Inc. ($15.5M), 6. Ansible Government Solutions LLC ($12.1M), 7. Arlluk Technology Solutions LLC ($10.9M), 8. Tempus AI, Inc. ($10.1M), 9. Vetmed Group LLC ($6.99M), 10. Government Imaging Services LLC ($6.56M).

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