Top 100 Contractors in PSC 6505: Drugs and Biologicals, FY2025

Name: Top 100 Contractors in PSC 6505: Drugs and Biologicals, FY2025
Creator: GovTribe

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

The top 10 won 94% of FY2025 PSC 6505 contract dollars

Contract obligations: $20,759,101,184 Net of deobligations, by contracts coded PSC 6505
Contractors: 469 Parent companies with an obligation
Largest contractor: McKesson Corporation $11.8 billion, 54.7% 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	McKesson Corporation 7 awardees, including Biologics, Inc., Mckesson Medical-Surgical Inc. and Mckesson Medical-Surgical Government Solutions LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) HHS (Department of Health and Human Services)	$11,849,130,222	54.7%	Rank history: #2 in FY2021, #2 in FY2022, #1 in FY2023 and #1 in FY2024; unchanged since FY2024.
2	Cencora, Inc. 3 awardees, including Amerisourcebergen Drug Corp, ASD Specialty Healthcare, LLC and Theracom, L.L.C. Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs)	$7,314,257,475	33.8%	Rank history: #5 in FY2021, #6 in FY2022, #3 in FY2023 and #2 in FY2024; unchanged since FY2024.
3	DMS Pharmaceutical Group Inc. Top agencies DLA (Defense Logistics Agency)	$285,600,482	1.3%	Rank history: #10 in FY2021, #10 in FY2022, #5 in FY2023 and #5 in FY2024; up 2 since FY2024.
4	Alvogen Group Inc. Through Alvogen, Inc. Top agencies HHS (Department of Health and Human Services) DLA (Defense Logistics Agency)	$227,680,601	1.1%	Rank history: not on the FY2021–FY2023 lists and #12 in FY2024; up 8 since FY2024.
5	Bavarian Nordic A / S Top agencies HHS (Department of Health and Human Services)	$143,565,504	0.7%	Rank history: #13 in FY2021, #9 in FY2022, #8 in FY2023 and #6 in FY2024; up 1 since FY2024.
6	Emergent Biosolutions Inc. 2 awardees, including Emergent Biosolutions Canada Inc. and Emergent Biodefense Operations Lansing LLC Top agencies HHS (Department of Health and Human Services) Army (Department of the Army)	$135,103,000	0.6%	Rank history: not on the FY2021–FY2023 lists and #25 in FY2024; up 19 since FY2024.
7	Chartwell RX LLC Top agencies HHS (Department of Health and Human Services) DLA (Defense Logistics Agency)	$115,144,505	0.5%	Rank history: not on the FY2021 list, #11 in FY2022, #99 in FY2023 and not on the FY2024 list; up 105 since FY2024.
8	Government of the United States Through DLA Troop Support Top agencies HHS (Department of Health and Human Services)	$102,615,000	0.5%	Rank history: #20 in FY2021, #18 in FY2022, #9 in FY2023 and #9 in FY2024; up 1 since FY2024.
9	Fresenius Kabi, LLC Top agencies HHS (Department of Health and Human Services) DLA (Defense Logistics Agency)	$88,709,951	0.4%	Rank history: not on the FY2021–FY2024 lists; up 113 since FY2024.
10	Exelan Pharmaceuticals Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$74,799,434	0.3%	Rank history: not on the FY2021–FY2024 lists; up 224 since FY2024.
11	Nighthawk Biosciences, Inc. Through Elusys Therapeutics Inc. Top agencies HHS (Department of Health and Human Services)	$55,273,060	0.3%	Rank history: not on the FY2021–FY2023 lists and #10 in FY2024; down 1 since FY2024.
12	Mapp Biopharmaceutical, Inc. Top agencies HHS (Department of Health and Human Services)	$49,946,600	0.2%	Rank history: not on the FY2021 list, #14 in FY2022, #16 in FY2023 and not on the FY2024 list; up 266 since FY2024.
13	Altitude Technologies Inc. Top agencies HHS (Department of Health and Human Services) DLA (Defense Logistics Agency)	$47,860,319	0.2%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2023 and not on the FY2024 list; returned.
14	Teva Pharmaceuticals Usa, Inc. Top agencies DLA (Defense Logistics Agency)	$40,222,065	0.2%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2024; unchanged since FY2024.
15	Leidos Holdings, Inc. Through Leidos, Inc. Top agencies HHS (Department of Health and Human Services)	$37,485,000	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
16	Lantheus Holdings, Inc. 2 awardees, including Progenics Pharmaceuticals Inc. and Lantheus Medical Imaging, Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$34,138,812	0.2%	Rank history: not on the FY2021 list, #38 in FY2022, #17 in FY2023 and #19 in FY2024; up 3 since FY2024.
17	Cardinal Health, Inc. 4 awardees, including Cardinal Health 414, LLC, Cardinal Health 108, LLC and The Harvard Drug Group, L.L.C. Top agencies VA (Department of Veterans Affairs) DLA (Defense Logistics Agency) DHA (Defense Health Agency)	$31,816,608	0.1%	Rank history: #31 in FY2021, #27 in FY2022, #13 in FY2023 and #17 in FY2024; unchanged since FY2024.
18	Glaxosmithkline, LLC Top agencies HHS (Department of Health and Human Services) DOS (Department of State) Army (Department of the Army)	$29,292,412	0.1%	Rank history: #8 in FY2021, #5 in FY2022, #45 in FY2023 and #11 in FY2024; down 7 since FY2024.
19	Rafa Laboratories Ltd Top agencies HHS (Department of Health and Human Services)	$20,946,416	0.1%	Rank history: #29 in FY2021 and not on the FY2022–FY2024 lists; returned.
20	Advanced Accelerator Applications USA Inc 2 awardees, including Novartis Pharmaceuticals Corporation Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) DHA (Defense Health Agency)	$20,407,120	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
21	Valneva USA Inc. Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs)	$18,421,349	0.1%	Rank history: not on the FY2021–FY2023 lists and #27 in FY2024; up 6 since FY2024.
22	The American National Red Cross 2 awardees Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$17,142,160	0.1%	Rank history: #41 in FY2021, #33 in FY2022, #20 in FY2023 and #28 in FY2024; up 6 since FY2024.
23	Sagent Pharmaceuticals Inc. Top agencies HHS (Department of Health and Human Services) DLA (Defense Logistics Agency)	$16,741,169	0.1%	Rank history: not on the FY2021–FY2024 lists; up 194 since FY2024.
24	Sanofi Pasteur Inc. Through Sanofi Vaccines US Inc. Top agencies DLA (Defense Logistics Agency) DOS (Department of State) VA (Department of Veterans Affairs)	$16,379,071	0.1%	Rank history: not on the FY2021–FY2023 lists and #31 in FY2024; up 7 since FY2024.
25	Medline Industries, LP Top agencies HHS (Department of Health and Human Services) DLA (Defense Logistics Agency) DOJ (Department of Justice)	$16,355,735	0.1%	Rank history: not on the FY2021–FY2022 lists, #35 in FY2023 and #13 in FY2024; down 12 since FY2024.
26	Bayer Aktiengesellschaft Through Bayer Healthcare Pharmaceuticals Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) DLA (Defense Logistics Agency)	$15,579,918	0.1%	Rank history: not on the FY2021–FY2022 lists, #33 in FY2023 and not on the FY2024 list; returned.
27	Canadian Commercial Corporation Top agencies DLA (Defense Logistics Agency)	$15,394,891	0.1%	Rank history: not on the FY2021–FY2023 lists and #18 in FY2024; down 9 since FY2024.
28	Seqirus USA Inc. Top agencies HHS (Department of Health and Human Services) DLA (Defense Logistics Agency) VA (Department of Veterans Affairs)	$13,036,513	0.1%	Rank history: #21 in FY2021, #23 in FY2022, #10 in FY2023 and #20 in FY2024; down 8 since FY2024.
29	Sofie Co. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$12,188,369	0.1%	Rank history: not on the FY2021–FY2023 lists and #61 in FY2024; up 32 since FY2024.
30	Coherus Oncology, Inc. Top agencies HHS (Department of Health and Human Services)	$11,805,200	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
31	Rivanna Medical, Inc. Top agencies HHS (Department of Health and Human Services)	$9,920,323	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
32	Heyltex Corporation Top agencies HHS (Department of Health and Human Services)	$8,099,930	<0.1%	Rank history: not on the FY2021 list, #58 in FY2022 and not on the FY2023–FY2024 lists; returned.
33	Artemis Technologies Inc. Top agencies USDA (Department of Agriculture)	$8,054,662	<0.1%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2024; up 10 since FY2024.
34	Golden State Medical Supply, Inc. Top agencies VA (Department of Veterans Affairs) DLA (Defense Logistics Agency)	$7,909,234	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 229 since FY2024.
35	Dakota Drug, Inc. Top agencies DLA (Defense Logistics Agency)	$7,640,194	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
36	Seqirus Inc. Top agencies HHS (Department of Health and Human Services)	$7,630,162	<0.1%	Rank history: #25 in FY2021, not on the FY2022–FY2023 lists and #21 in FY2024; down 15 since FY2024.
37	Boehringer Ingelheim Animal Health USA Inc Top agencies USDA (Department of Agriculture)	$7,597,312	<0.1%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2023 and #37 in FY2024; unchanged since FY2024.
38	Bristol-Myers Squibb Company Top agencies VA (Department of Veterans Affairs)	$7,291,703	<0.1%	Rank history: not on the FY2021–FY2023 lists and #55 in FY2024; up 17 since FY2024.
39	Boston Scientific Corp Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) DHA (Defense Health Agency)	$6,909,557	<0.1%	Rank history: #58 in FY2021, #55 in FY2022, #40 in FY2023 and #47 in FY2024; up 8 since FY2024.
40	FFF Enterprises, Inc. Top agencies VA (Department of Veterans Affairs)	$6,350,104	<0.1%	Rank history: not on the FY2021–FY2023 lists and #33 in FY2024; down 7 since FY2024.
41	Jubilant Draximage Radiopharmacies, Inc. 2 awardees Top agencies VA (Department of Veterans Affairs)	$5,633,398	<0.1%	Rank history: #71 in FY2021, #85 in FY2022, #39 in FY2023 and #46 in FY2024; up 5 since FY2024.
42	Baxter Healthcare Corporation Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) DLA (Defense Logistics Agency)	$5,279,072	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 66 since FY2024.
43	WG Critical Care, LLC Top agencies HHS (Department of Health and Human Services)	$4,974,870	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
44	Paratek Pharmaceuticals, Inc. Top agencies HHS (Department of Health and Human Services)	$4,958,461	<0.1%	Rank history: #26 in FY2021, not on the FY2022 list, #11 in FY2023 and #26 in FY2024; down 18 since FY2024.
45	Nationwide Pharmaceutical LLC Top agencies VA (Department of Veterans Affairs)	$4,620,939	<0.1%	Rank history: #73 in FY2021, #95 in FY2022, #71 in FY2023 and #91 in FY2024; up 46 since FY2024.
46	Pharmacy Buying Association, Inc. Top agencies VA (Department of Veterans Affairs)	$4,526,844	<0.1%	Rank history: #42 in FY2021, #47 in FY2022, #26 in FY2023 and #41 in FY2024; down 5 since FY2024.
47	Vitalant Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$4,223,320	<0.1%	Rank history: #57 in FY2021, #60 in FY2022, #50 in FY2023 and #52 in FY2024; up 5 since FY2024.
48	Merck & Co. Inc. Through Merck Sharp & Dohme LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$4,042,509	<0.1%	Rank history: not on the FY2021–FY2023 lists and #7 in FY2024; down 41 since FY2024.
49	Boehringer Ingelheim Animal Health France Top agencies USDA (Department of Agriculture)	$3,700,000	<0.1%	Rank history: not on the FY2021–FY2023 lists and #45 in FY2024; down 4 since FY2024.
50	Henry Schein Inc. Through North American Rescue, LLC Top agencies DLA (Defense Logistics Agency)	$3,541,556	<0.1%	Rank history: not on the FY2021–FY2023 lists and #74 in FY2024; up 24 since FY2024.
51	Siemens Corporation 2 awardees, including Petnet Solutions, Inc. and Siemens Healthcare Diagnostics Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$3,281,192	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 50 since FY2024.
52	Medi-Physics, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$3,229,764	<0.1%	Rank history: not on the FY2021–FY2023 lists and #63 in FY2024; up 11 since FY2024.
53	Honeywell International Inc. Top agencies Army (Department of the Army)	$3,147,211	<0.1%	Rank history: not on the FY2021–FY2022 lists, #6 in FY2023 and not on the FY2024 list; returned.
54	Biogenesis Bago S.A. Top agencies USDA (Department of Agriculture)	$3,112,500	<0.1%	Rank history: #61 in FY2021, #99 in FY2022, #49 in FY2023 and not on the FY2024 list; returned.
55	Telix Pharmaceuticals US Inc. Top agencies VA (Department of Veterans Affairs)	$2,978,000	<0.1%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2023 and #56 in FY2024; up 1 since FY2024.
56	RLS (USA) Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$2,595,737	<0.1%	Rank history: #86 in FY2021, #65 in FY2022, #44 in FY2023 and #83 in FY2024; up 27 since FY2024.
57	Illumina, Inc. Top agencies HHS (Department of Health and Human Services)	$2,593,226	<0.1%	Rank history: #56 in FY2021, #49 in FY2022, #38 in FY2023 and #50 in FY2024; down 7 since FY2024.
58	Bracco U.S.a. Inc. Through Bracco Diagnostics Inc. Top agencies VA (Department of Veterans Affairs)	$2,473,978	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 57 since FY2024.
59	Versiti Blood Health, Inc. Top agencies VA (Department of Veterans Affairs)	$2,468,906	<0.1%	Rank history: #76 in FY2021, #64 in FY2022, #46 in FY2023 and #54 in FY2024; down 5 since FY2024.
60	Shabach Services LLC Top agencies VA (Department of Veterans Affairs)	$2,385,000	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 97 since FY2024.
61	Pfizer Inc. Top agencies HHS (Department of Health and Human Services) DLA (Defense Logistics Agency)	$2,268,001	<0.1%	Rank history: #1 in FY2021, #1 in FY2022, #4 in FY2023 and not on the FY2024 list; returned.
62	Express Scripts Inc 3 awardees, including Priority Healthcare Distribution Inc. and Accredo Health Group, Inc. Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs)	$2,171,113	<0.1%	Rank history: not on the FY2021–FY2023 lists and #72 in FY2024; up 10 since FY2024.
63	Takeda Pharmaceuticals America, Inc. Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs)	$2,073,510	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
64	Jazz Pharmaceuticals, Inc. Top agencies VA (Department of Veterans Affairs)	$1,978,420	<0.1%	Rank history: not on the FY2021–FY2022 lists, #79 in FY2023 and #68 in FY2024; up 4 since FY2024.
65	Atlantic Diving Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$1,937,445	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 74 since FY2024.
66	O&M Halyard, Inc. Top agencies DLA (Defense Logistics Agency)	$1,889,888	<0.1%	Rank history: not on the FY2021 list, #61 in FY2022, not on the FY2023 list and #76 in FY2024; up 10 since FY2024.
67	UnitedHealth Group Incorporated 2 awardees, including Optum Pharmacy 801, Inc. Top agencies VA (Department of Veterans Affairs)	$1,846,002	<0.1%	Rank history: #46 in FY2021, #39 in FY2022, not on the FY2023 list and #62 in FY2024; down 5 since FY2024.
68	Becton, Dickinson and Co 3 awardees Top agencies DLA (Defense Logistics Agency) HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$1,828,598	<0.1%	Rank history: #27 in FY2021, #31 in FY2022, #69 in FY2023 and not on the FY2024 list; returned.
69	American Regent Inc Top agencies DLA (Defense Logistics Agency)	$1,821,245	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 41 since FY2024.
70	Melling LLC Top agencies VA (Department of Veterans Affairs)	$1,719,332	<0.1%	Rank history: #49 in FY2021, #77 in FY2022, #57 in FY2023 and not on the FY2024 list; up 51 since FY2024.
71	Government Scientific Source Inc. Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) DLA (Defense Logistics Agency)	$1,712,976	<0.1%	Rank history: #72 in FY2021, #70 in FY2022, #61 in FY2023 and #84 in FY2024; up 13 since FY2024.
72	Johnson & Johnson 6 awardees, including Depuy Synthes Sales Inc., Johnson & Johnson Health Care Systems Inc. and Janssen Pharmaceuticals, Inc. Top agencies DLA (Defense Logistics Agency) HHS (Department of Health and Human Services)	$1,707,570	<0.1%	Rank history: #37 in FY2021, #51 in FY2022, #47 in FY2023 and #53 in FY2024; down 19 since FY2024.
73	Abbott Laboratories Inc. 3 awardees, including Abbott Rapid DX North America LLC Top agencies DHA (Defense Health Agency) DLA (Defense Logistics Agency) DOS (Department of State)	$1,592,139	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 159 since FY2024.
74	Nuclear Diagnostic Products of Philadelphia, Inc. Top agencies VA (Department of Veterans Affairs)	$1,410,930	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
75	Cardinal Health 200, LLC Top agencies DLA (Defense Logistics Agency)	$1,404,768	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 280 since FY2024.
76	Lifesouth Community Blood Centers Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$1,385,385	<0.1%	Rank history: #88 in FY2021, #84 in FY2022, #72 in FY2023 and not on the FY2024 list; returned.
77	Carter Bloodcare Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$1,369,372	<0.1%	Rank history: not on the FY2021 list, #78 in FY2022, #73 in FY2023 and #88 in FY2024; up 11 since FY2024.
78	Disabled Veterans Hawaii LLC Top agencies VA (Department of Veterans Affairs)	$1,365,067	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 270 since FY2024.
79	Mid-America Isotopes, Inc. Top agencies VA (Department of Veterans Affairs)	$1,353,702	<0.1%	Rank history: not on the FY2021–FY2023 lists and #90 in FY2024; up 11 since FY2024.
80	The Leland Stanford Junior University Top agencies VA (Department of Veterans Affairs)	$1,348,082	<0.1%	Rank history: not on the FY2021–FY2022 lists, #76 in FY2023 and not on the FY2024 list; returned.
81	SZY Holdings, LLC Top agencies DLA (Defense Logistics Agency)	$1,308,777	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 37 since FY2024.
82	South Texas Blood & Tissue Center Top agencies DHA (Defense Health Agency)	$1,306,686	<0.1%	Rank history: not on the FY2021 list, #97 in FY2022 and not on the FY2023–FY2024 lists; up 311 since FY2024.
83	Trillamed LLC Top agencies VA (Department of Veterans Affairs)	$1,306,012	<0.1%	Rank history: #48 in FY2021, #52 in FY2022, #51 in FY2023 and #81 in FY2024; down 2 since FY2024.
84	Nuclear Diagnostic Products, Inc. Top agencies VA (Department of Veterans Affairs)	$1,277,031	<0.1%	Rank history: #80 in FY2021, #80 in FY2022, #55 in FY2023 and #71 in FY2024; down 13 since FY2024.
85	Meridian Medical Technologies LLC Top agencies Army (Department of the Army) EPA (Environmental Protection Agency)	$1,247,400	<0.1%	Rank history: not on the FY2021–FY2023 lists and #60 in FY2024; down 25 since FY2024.
86	Danaher Corporation 3 awardees, including Cepheid, Integrated DNA Technologies, Inc. and Beckman Coulter, Inc. Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$1,212,345	<0.1%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2023 and not on the FY2024 list; returned.
87	Keranetics Inc. Top agencies HHS (Department of Health and Human Services)	$1,200,000	<0.1%	Rank history: not on the FY2021 list, #53 in FY2022 and not on the FY2023–FY2024 lists; returned.
88	Phoenix Textile Corporation Top agencies DLA (Defense Logistics Agency)	$1,188,602	<0.1%	Rank history: #66 in FY2021, #81 in FY2022, #59 in FY2023 and #75 in FY2024; down 13 since FY2024.
89	Ortho-Clinical Diagnostics Inc. 2 awardees, including Quidelortho Sales Company, LLC Top agencies DHA (Defense Health Agency) DLA (Defense Logistics Agency) HHS (Department of Health and Human Services)	$1,173,810	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 93 since FY2024.
90	Independent Pharmacy Cooperative Top agencies VA (Department of Veterans Affairs)	$1,148,646	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
91	Versiti Indiana, Inc. Top agencies VA (Department of Veterans Affairs)	$1,124,646	<0.1%	Rank history: not on the FY2021 list, #92 in FY2022 and not on the FY2023–FY2024 lists; returned.
92	BTG International Inc. Top agencies HHS (Department of Health and Human Services)	$1,100,545	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 24 since FY2024.
93	Biocryst Pharmaceuticals Inc. Top agencies VA (Department of Veterans Affairs)	$1,075,037	<0.1%	Rank history: #43 in FY2021, #43 in FY2022, not on the FY2023 list and #30 in FY2024; down 63 since FY2024.
94	Genscript USA Inc. Top agencies HHS (Department of Health and Human Services)	$1,048,964	<0.1%	Rank history: #96 in FY2021, not on the FY2022–FY2023 lists and #94 in FY2024; unchanged since FY2024.
95	Pharmalogic Holdings Corp. Top agencies VA (Department of Veterans Affairs)	$960,051	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 10 since FY2024.
96	Recordati Rare Diseases Inc. Top agencies VA (Department of Veterans Affairs)	$952,138	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 333 since FY2024.
97	Actelion Pharmaceuticals US, Inc. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$925,234	<0.1%	Rank history: not on the FY2021–FY2023 lists and #82 in FY2024; down 15 since FY2024.
98	Core Trading Co Top agencies VA (Department of Veterans Affairs) DLA (Defense Logistics Agency)	$887,697	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 39 since FY2024.
99	Central Admixture Pharmacy Services, Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$853,910	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 45 since FY2024.
100	Harmony Biosciences LLC Top agencies VA (Department of Veterans Affairs)	$848,482	<0.1%	Rank history: not on the FY2021–FY2023 lists and #79 in FY2024; down 21 since FY2024.

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100 of 469 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 $21.7 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 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 PSC 6505 contractors in FY2025?

1. McKesson Corporation ($11.8B), 2. Cencora, Inc. ($7.31B), 3. DMS Pharmaceutical Group Inc. ($286M), 4. Alvogen Group Inc. ($228M), 5. Bavarian Nordic A / S ($144M), 6. Emergent Biosolutions Inc. ($135M), 7. Chartwell RX LLC ($115M), 8. Government of the United States ($103M), 9. Fresenius Kabi, LLC ($88.7M), 10. Exelan Pharmaceuticals Inc. ($74.8M).

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