Top 100 Contractors in PSC 6550: In Vitro Diagnostic Substances, Reagents, Test Kits and Sets, FY2022

Name: Top 100 Contractors in PSC 6550: In Vitro Diagnostic Substances, Reagents, Test Kits and Sets, FY2022
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2021 – Sep 30, 2022 Code page on GovTribe

The top 10 won 87% of FY2022 PSC 6550 contract dollars

Contract obligations: $1,223,507,144 Net of deobligations, by contracts coded PSC 6550
Contractors: 252 Parent companies with an obligation
Largest contractor: Astrazeneca PLC $863 million, 66.5% 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	Astrazeneca PLC Through Astrazeneca Pharmaceuticals LP Top agencies Army (Department of the Army)	$863,002,000	66.5%	Rank history: #1 in FY2021 and not on the FY2023–FY2025 lists; unchanged since FY2021.
2	Abbott Laboratories 10 awardees, including Abbott Rapid DX North America LLC, Alere San Diego, Inc. and Abbott Diabetes Care Sales Corp Top agencies HHS (Department of Health and Human Services) DLA (Defense Logistics Agency) Army (Department of the Army)	$83,541,886	6.4%	Rank history: #2 in FY2021, #1 in FY2023, not on the FY2024 list and #4 in FY2025; unchanged since FY2021.
3	Becton, Dickinson and Co 6 awardees, including Becton, Dickinson Italia S.P.A. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$79,744,972	6.1%	Rank history: #7 in FY2021, #18 in FY2023, #28 in FY2024 and not on the FY2025 list; up 4 since FY2021.
4	Roche Holding AG 3 awardees, including Roche Diagnostics Corporation and Genmark Diagnostics, Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) USAF (Department of the Air Force)	$26,867,718	2.1%	Rank history: #5 in FY2021, #4 in FY2023, #4 in FY2024 and not on the FY2025 list; up 1 since FY2021.
5	Danaher Corporation 10 awardees, including Cepheid, Beckman Coulter, Inc. and Leica Microsystems Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) Army (Department of the Army)	$17,398,876	1.3%	Rank history: #3 in FY2021, #6 in FY2023, #1 in FY2024 and #1 in FY2025; down 2 since FY2021.
6	Quidel Corp 2 awardees Top agencies DLA (Defense Logistics Agency) HHS (Department of Health and Human Services) Navy (Department of the Navy)	$14,717,834	1.1%	Rank history: not on the FY2021 list, #5 in FY2023 and not on the FY2024–FY2025 lists; new.
7	Compagnie Merieux Alliance 4 awardees, including Biofire Diagnostics LLC, Biomerieux Inc. and Biofire Defense LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) DHA (Defense Health Agency)	$13,664,316	1.1%	Rank history: #6 in FY2021, #7 in FY2023, #6 in FY2024 and not on the FY2025 list; down 1 since FY2021.
8	Intrivo Holdings Corp Top agencies DLA (Defense Logistics Agency) EPA (Environmental Protection Agency)	$12,009,200	0.9%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
9	Thermo Electron Corporation 11 awardees, including Life Technologies Corporation, Fisher Scientific Company L.L.C. and Microgenics Corporation Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) Army (Department of the Army)	$11,632,381	0.9%	Rank history: #8 in FY2021, #10 in FY2023, #27 in FY2024 and not on the FY2025 list; down 1 since FY2021.
10	Orasure Technologies Inc. Top agencies DLA (Defense Logistics Agency) HHS (Department of Health and Human Services)	$11,042,584	0.9%	Rank history: not on the FY2021 list, #8 in FY2023, #84 in FY2024 and #62 in FY2025; up 159 since FY2021.
11	Hologic, Inc. 2 awardees, including Hologic Sales and Service, LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Army (Department of the Army)	$9,272,237	0.7%	Rank history: #12 in FY2021, #12 in FY2023, #9 in FY2024 and not on the FY2025 list; up 1 since FY2021.
12	Grifols Diagnostic Solutions Inc. 3 awardees, including Gen-Probe Incorporated Top agencies Army (Department of the Army) DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$7,694,521	0.6%	Rank history: #14 in FY2021 and not on the FY2023–FY2025 lists; up 2 since FY2021.
13	Government Scientific Source Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) DHA (Defense Health Agency)	$6,077,870	0.5%	Rank history: #13 in FY2021, #14 in FY2023, #13 in FY2024 and #13 in FY2025; unchanged since FY2021.
14	Sysmex Corporation 3 awardees, including Sysmex America, Inc., Sysmex Deutschland GMBH and Sysmex UK Limited Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Army (Department of the Army)	$5,409,176	0.4%	Rank history: #19 in FY2021, #13 in FY2023, #14 in FY2024 and not on the FY2025 list; up 5 since FY2021.
15	Johnson & Johnson Through Ortho-Clinical Diagnostics, Inc. Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services) Army (Department of the Army)	$3,989,488	0.3%	Rank history: #11 in FY2021, #17 in FY2023, #15 in FY2024 and not on the FY2025 list; down 4 since FY2021.
16	Illumina, Inc. Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) VA (Department of Veterans Affairs)	$3,735,723	0.3%	Rank history: #15 in FY2021, #15 in FY2023, #11 in FY2024 and #8 in FY2025; down 1 since FY2021.
17	Siemens Aktiengesellschaft 3 awardees, including Siemens Healthcare Diagnostics Inc. and Siemens Healthcare SL. Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) Army (Department of the Army)	$3,713,153	0.3%	Rank history: #20 in FY2021, #16 in FY2023, #8 in FY2024 and not on the FY2025 list; up 3 since FY2021.
18	Werfen USA LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) Army (Department of the Army)	$3,535,048	0.3%	Rank history: #16 in FY2021, #24 in FY2023, #18 in FY2024 and #14 in FY2025; down 2 since FY2021.
19	Luminex Corporation 6 awardees, including Diasorin Inc. and Diasorin Molecular, LLC Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs) Army (Department of the Army)	$2,499,711	0.2%	Rank history: #9 in FY2021, #41 in FY2023, #39 in FY2024 and #36 in FY2025; down 10 since FY2021.
20	Branch Medical LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) Navy (Department of the Navy)	$2,008,961	0.2%	Rank history: #23 in FY2021, #51 in FY2023, #35 in FY2024 and #28 in FY2025; up 3 since FY2021.
21	Immucor Inc. 2 awardees, including Bioarray Solutions Ltd Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) DHA (Defense Health Agency)	$1,761,466	0.1%	Rank history: #22 in FY2021, #25 in FY2023, #25 in FY2024 and not on the FY2025 list; up 1 since FY2021.
22	Murtech, Inc. Top agencies Army (Department of the Army)	$1,725,751	0.1%	Rank history: #18 in FY2021, #26 in FY2023, #55 in FY2024 and #42 in FY2025; down 4 since FY2021.
23	Smiths Group PLC Through Smiths Detection Inc. Top agencies WHS (DOD Washington Headquarters Service)	$1,592,819	0.1%	Rank history: not on the FY2021 list, #28 in FY2023 and not on the FY2024–FY2025 lists; new.
24	Cepheid Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$1,520,651	0.1%	Rank history: #38 in FY2021, #11 in FY2023 and not on the FY2024–FY2025 lists; up 14 since FY2021.
25	Ihealth Innovative Solution LLC Top agencies SSA (Social Security Administration)	$1,506,029	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
26	Fisher Scientific Company L.L.C. Top agencies VA (Department of Veterans Affairs) DLA (Defense Logistics Agency)	$1,441,711	0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #32 in FY2025; up 195 since FY2021.
27	10X Genomics, Inc. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$1,390,676	0.1%	Rank history: #37 in FY2021, #21 in FY2023, #31 in FY2024 and #10 in FY2025; up 10 since FY2021.
28	Ortho Clinical Diagnostics K.K. Top agencies Navy (Department of the Navy)	$1,365,906	0.1%	Rank history: #24 in FY2021, #37 in FY2023, #42 in FY2024 and #27 in FY2025; down 4 since FY2021.
29	BIO - RAD Laboratories Gesellschaft MIT Beschraenkter Haftung 3 awardees, including Bio Rad Laboratories Inc. Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$1,124,892	0.1%	Rank history: #30 in FY2021, #34 in FY2023, #26 in FY2024 and #30 in FY2025; up 1 since FY2021.
30	Medline Industries, LP Top agencies DOJ (Department of Justice) HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$1,056,762	0.1%	Rank history: #77 in FY2021 and not on the FY2023–FY2025 lists; up 47 since FY2021.
31	Gen-Probe Incorporated Top agencies VA (Department of Veterans Affairs)	$1,000,000	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
32	Emed Labs, LLC Top agencies DOT (Department of Transportation)	$972,623	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
33	Vet Accel Inc. Top agencies VA (Department of Veterans Affairs)	$912,600	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
34	Life Technologies Corporation Top agencies HHS (Department of Health and Human Services)	$798,802	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
35	Stago International Through Diagnostica Stago Inc. Top agencies DHA (Defense Health Agency) Army (Department of the Army) USAF (Department of the Air Force)	$754,949	0.1%	Rank history: #29 in FY2021, #38 in FY2023, #48 in FY2024 and not on the FY2025 list; down 6 since FY2021.
36	Zoetis Inc. Top agencies USDA (Department of Agriculture)	$742,260	0.1%	Rank history: #53 in FY2021, #46 in FY2023, #46 in FY2024 and not on the FY2025 list; up 17 since FY2021.
37	The American National Red Cross Top agencies DHA (Defense Health Agency)	$741,087	0.1%	Rank history: #34 in FY2021, #30 in FY2023, #62 in FY2024 and #38 in FY2025; down 3 since FY2021.
38	Clear Labs Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$704,928	0.1%	Rank history: #71 in FY2021, #70 in FY2023, #59 in FY2024 and #48 in FY2025; up 33 since FY2021.
39	Sebia, Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) USAF (Department of the Air Force)	$676,081	0.1%	Rank history: #36 in FY2021, #31 in FY2023, #43 in FY2024 and #23 in FY2025; down 3 since FY2021.
40	Cardinal Health, Inc. 2 awardees, including Cardinal Health 200, LLC and Cardinal Health 414, LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) Army (Department of the Army)	$626,645	<0.1%	Rank history: #21 in FY2021, not on the FY2023 list, #61 in FY2024 and not on the FY2025 list; down 19 since FY2021.
41	Grifols SA 2 awardees, including Gen-Probe Incorporated and Grifols Diagnostic Solutions Inc. Top agencies VA (Department of Veterans Affairs)	$626,417	<0.1%	Rank history: not on the FY2021 list, #20 in FY2023, #33 in FY2024 and #93 in FY2025; new.
42	Charm Sciences Inc. Top agencies USDA (Department of Agriculture)	$610,266	<0.1%	Rank history: #33 in FY2021, #49 in FY2023, #45 in FY2024 and #41 in FY2025; down 9 since FY2021.
43	The Blood Center Top agencies VA (Department of Veterans Affairs)	$606,880	<0.1%	Rank history: #44 in FY2021, #65 in FY2023, #72 in FY2024 and #57 in FY2025; up 1 since FY2021.
44	The Binding Site. Inc. Top agencies VA (Department of Veterans Affairs)	$606,735	<0.1%	Rank history: #43 in FY2021, #40 in FY2023, #37 in FY2024 and #35 in FY2025; down 1 since FY2021.
45	Veterans Healthcare Supply Solutions, Inc. Top agencies VA (Department of Veterans Affairs)	$588,052	<0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #66 in FY2025; new.
46	SZY Holdings, LLC Top agencies DLA (Defense Logistics Agency)	$560,801	<0.1%	Rank history: #35 in FY2021, #59 in FY2023, #52 in FY2024 and #46 in FY2025; down 11 since FY2021.
47	Qiagen N.V. 2 awardees Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$540,500	<0.1%	Rank history: #26 in FY2021, #39 in FY2023, #30 in FY2024 and #19 in FY2025; down 21 since FY2021.
48	Bloodsolutions Managers, LLC Top agencies VA (Department of Veterans Affairs)	$540,450	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
49	Agilent Technologies, Inc. 2 awardees Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$494,351	<0.1%	Rank history: #54 in FY2021, #47 in FY2023 and not on the FY2024–FY2025 lists; up 5 since FY2021.
50	Henry Schein, Inc. Top agencies DHA (Defense Health Agency) DLA (Defense Logistics Agency)	$470,014	<0.1%	Rank history: #41 in FY2021, #55 in FY2023, #57 in FY2024 and #44 in FY2025; down 9 since FY2021.
51	Sr-Services GMBH Top agencies Army (Department of the Army)	$463,139	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
52	Polymedco LLC 2 awardees, including Polymedco Cancer Diagnostic Products LLC Top agencies VA (Department of Veterans Affairs)	$443,186	<0.1%	Rank history: #40 in FY2021, #36 in FY2023, #34 in FY2024 and #17 in FY2025; down 12 since FY2021.
53	Franklin Young International, Incorporated Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy) USAF (Department of the Air Force)	$414,637	<0.1%	Rank history: #45 in FY2021, #72 in FY2023, #49 in FY2024 and #29 in FY2025; down 8 since FY2021.
54	Ahlstrom USA Inc. Top agencies DHA (Defense Health Agency)	$364,080	<0.1%	Rank history: #60 in FY2021, #91 in FY2023, #90 in FY2024 and not on the FY2025 list; up 6 since FY2021.
55	Ortho-Clinical Diagnostics, Inc. 2 awardees Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) DLA (Defense Logistics Agency)	$362,240	<0.1%	Rank history: #4 in FY2021, not on the FY2023 list, #17 in FY2024 and #6 in FY2025; down 51 since FY2021.
56	Ionsouth Mobile LLC Top agencies VA (Department of Veterans Affairs)	$355,967	<0.1%	Rank history: not on the FY2021 list, #93 in FY2023 and not on the FY2024–FY2025 lists; new.
57	Keres Consulting Inc. Through Nativevet Materiel, LLC Top agencies HHS (Department of Health and Human Services)	$355,207	<0.1%	Rank history: #55 in FY2021 and not on the FY2023–FY2025 lists; down 2 since FY2021.
58	Bloodworks Top agencies DHA (Defense Health Agency)	$342,751	<0.1%	Rank history: not on the FY2021 list, #62 in FY2023, #63 in FY2024 and not on the FY2025 list; up 157 since FY2021.
59	Instrumentation Laboratory Japan Co. Ltd. 3 awardees, including Werfen GMBH and Inova Diagnostics, Inc. Top agencies DHA (Defense Health Agency) Army (Department of the Army) DLA (Defense Logistics Agency)	$338,503	<0.1%	Rank history: not on the FY2021 list, #90 in FY2023, #91 in FY2024 and not on the FY2025 list; new.
60	Celltrion USA Inc. Top agencies DLA (Defense Logistics Agency)	$337,500	<0.1%	Rank history: not on the FY2021 list, #9 in FY2023 and not on the FY2024–FY2025 lists; new.
61	Summit Shoji Inc. Top agencies DLA (Defense Logistics Agency)	$330,833	<0.1%	Rank history: not on the FY2021 list, #45 in FY2023, #40 in FY2024 and #43 in FY2025; new.
62	Biobridge Global Through Qualtex Laboratories Top agencies Army (Department of the Army)	$327,415	<0.1%	Rank history: #27 in FY2021, #35 in FY2023, #32 in FY2024 and not on the FY2025 list; down 35 since FY2021.
63	Sofie Biosciences, Inc. Through Sofie Co. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$323,333	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
64	Thomas Scientific LLC 2 awardees, including Ortho-Clinical Diagnostics GMBH Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$321,222	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 40 since FY2021.
65	Lifeshare Blood Center Top agencies VA (Department of Veterans Affairs)	$311,818	<0.1%	Rank history: #51 in FY2021, #64 in FY2023, #71 in FY2024 and #67 in FY2025; down 14 since FY2021.
66	UnitedHealth Group Incorporated Top agencies DOL (Department of Labor)	$307,860	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
67	Godx Inc. Top agencies HHS (Department of Health and Human Services)	$299,808	<0.1%	Rank history: not on the FY2021 list, #29 in FY2023 and not on the FY2024–FY2025 lists; new.
68	Fuji Photo Film Company Limited (0000) Through Fujifilm Cellular Dynamics, Inc. Top agencies HHS (Department of Health and Human Services)	$287,502	<0.1%	Rank history: #67 in FY2021 and not on the FY2023–FY2025 lists; down 1 since FY2021.
69	Biocartis US Inc. Top agencies VA (Department of Veterans Affairs)	$274,788	<0.1%	Rank history: not on the FY2021 list, #69 in FY2023 and not on the FY2024–FY2025 lists; new.
70	Premier Healthcare Service LLC Top agencies ED (Department of Education)	$272,845	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
71	Promega Corporation Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$266,813	<0.1%	Rank history: not on the FY2021 list, #60 in FY2023, #79 in FY2024 and #77 in FY2025; up 91 since FY2021.
72	Sofie Co. Top agencies VA (Department of Veterans Affairs)	$248,216	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
73	Diasorin Molecular, LLC Top agencies VA (Department of Veterans Affairs)	$246,512	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
74	Ars Sales & Services LLC Top agencies DLA (Defense Logistics Agency)	$243,176	<0.1%	Rank history: #72 in FY2021, not on the FY2023 list, #97 in FY2024 and not on the FY2025 list; down 2 since FY2021.
75	Oxford Immunotec Usa, Inc. Top agencies VA (Department of Veterans Affairs)	$230,033	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
76	Cenmed Enterprises Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$225,483	<0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #98 in FY2024 and not on the FY2025 list; up 29 since FY2021.
77	Accelerate Diagnostics, Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$221,905	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 54 since FY2021.
78	Pacific Biosciences of California, Inc. Top agencies HHS (Department of Health and Human Services)	$220,917	<0.1%	Rank history: #66 in FY2021, #76 in FY2023, #56 in FY2024 and not on the FY2025 list; down 12 since FY2021.
79	Novartis AG Through Advanced Accelerator Applications USA Inc. Top agencies DHA (Defense Health Agency)	$212,562	<0.1%	Rank history: #61 in FY2021, #44 in FY2023, #20 in FY2024 and not on the FY2025 list; down 18 since FY2021.
80	National Environmental Inc. Top agencies HHS (Department of Health and Human Services)	$200,405	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
81	Cerus Corporation Top agencies DHA (Defense Health Agency) Army (Department of the Army)	$192,504	<0.1%	Rank history: not on the FY2021 list, #81 in FY2023, #94 in FY2024 and #63 in FY2025; up 42 since FY2021.
82	Alba Bioscience, Inc. Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) Navy (Department of the Navy)	$191,888	<0.1%	Rank history: #64 in FY2021, #71 in FY2023, #80 in FY2024 and #71 in FY2025; down 18 since FY2021.
83	3M Company Top agencies DLA (Defense Logistics Agency)	$184,203	<0.1%	Rank history: #52 in FY2021 and not on the FY2023–FY2025 lists; down 31 since FY2021.
84	Techne Corporation 3 awardees, including Advanced Cell Diagnostics, Inc., Research and Diagnostic Systems, Inc. and Proteinsimple Top agencies HHS (Department of Health and Human Services)	$182,201	<0.1%	Rank history: #39 in FY2021, #79 in FY2023 and not on the FY2024–FY2025 lists; down 45 since FY2021.
85	Medpharm Inc. Top agencies DHA (Defense Health Agency)	$163,851	<0.1%	Rank history: #80 in FY2021, not on the FY2023–FY2024 lists and #40 in FY2025; down 5 since FY2021.
86	Biodiscovery LLC Top agencies DHA (Defense Health Agency)	$161,390	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
87	Leica Microsystems Inc. Top agencies VA (Department of Veterans Affairs)	$161,003	<0.1%	Rank history: not on the FY2021 list, #54 in FY2023 and not on the FY2024–FY2025 lists; new.
88	Trillamed LLC Top agencies VA (Department of Veterans Affairs)	$159,870	<0.1%	Rank history: #17 in FY2021, #100 in FY2023 and not on the FY2024–FY2025 lists; down 71 since FY2021.
89	CPI Pharmacy Services Holding, LLC Top agencies VA (Department of Veterans Affairs)	$158,667	<0.1%	Rank history: #88 in FY2021 and not on the FY2023–FY2025 lists; down 1 since FY2021.
90	Stripes Global, Inc. Top agencies VA (Department of Veterans Affairs)	$154,701	<0.1%	Rank history: not on the FY2021 list, #89 in FY2023 and not on the FY2024–FY2025 lists; up 12 since FY2021.
91	Genmark Diagnostics, Inc. Top agencies VA (Department of Veterans Affairs)	$142,896	<0.1%	Rank history: #42 in FY2021 and not on the FY2023–FY2025 lists; down 49 since FY2021.
92	POC Korea Ltd. Top agencies Army (Department of the Army)	$142,740	<0.1%	Rank history: #85 in FY2021, #68 in FY2023, not on the FY2024 list and #94 in FY2025; down 7 since FY2021.
93	Lucira Health Inc. Top agencies Army (Department of the Army)	$136,500	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
94	Meso Scale Diagnostics LLC Top agencies HHS (Department of Health and Human Services) OSD (Office of the Secretary of Defense) Army (Department of the Army)	$130,005	<0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #89 in FY2024 and not on the FY2025 list; new.
95	Oxford Nanopore Technologies PLC Top agencies HHS (Department of Health and Human Services) Army (Department of the Army)	$127,246	<0.1%	Rank history: #92 in FY2021 and not on the FY2023–FY2025 lists; down 3 since FY2021.
96	General Electric Company Through Medi-Physics, Inc. Top agencies VA (Department of Veterans Affairs)	$125,716	<0.1%	Rank history: #59 in FY2021, not on the FY2023 list, #78 in FY2024 and not on the FY2025 list; down 37 since FY2021.
97	Siemens Healthcare Diagnostics Inc. Top agencies Army (Department of the Army)	$125,082	<0.1%	Rank history: #32 in FY2021 and not on the FY2023–FY2025 lists; down 65 since FY2021.
98	Zeus Scientific, LLC Top agencies VA (Department of Veterans Affairs)	$123,677	<0.1%	Rank history: #91 in FY2021, not on the FY2023 list, #68 in FY2024 and #60 in FY2025; down 7 since FY2021.
99	Vector Test Systems, Inc. Top agencies DLA (Defense Logistics Agency)	$117,296	<0.1%	Rank history: #95 in FY2021 and not on the FY2023–FY2025 lists; down 4 since FY2021.
100	Alphapointe Top agencies Army (Department of the Army)	$109,287	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 34 since FY2021.

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100 of 252 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 $1.3 billion obligated before deobligations, so they never pass 100%.
Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
Fiscal year 2022 ran Oct 1, 2021 – Sep 30, 2022. 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 FY2021. "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 FY2021 takes the color of the rank change beside it.
Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers

Who were the top 10 PSC 6550 contractors in FY2022?

1. Astrazeneca PLC ($863M), 2. Abbott Laboratories ($83.5M), 3. Becton, Dickinson and Co ($79.7M), 4. Roche Holding AG ($26.9M), 5. Danaher Corporation ($17.4M), 6. Quidel Corp ($14.7M), 7. Compagnie Merieux Alliance ($13.7M), 8. Intrivo Holdings Corp ($12M), 9. Thermo Electron Corporation ($11.6M), 10. Orasure Technologies Inc. ($11M).

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