Top 100 Contractors in PSC 6850: Miscellaneous Chemical Specialties, Jul 2025–Jun 2026

Name: Top 100 Contractors in PSC 6850: Miscellaneous Chemical Specialties, Jul 2025–Jun 2026
Creator: GovTribe

Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe

The top 10 won 97% of PSC 6850 contract dollars from July 2025 through June 2026

Contract obligations: $3,034,195,776 Net of deobligations, by contracts coded PSC 6850
Contractors: 197 Parent companies with an obligation
Largest contractor: American Centrifuge Operating, LLC $900 million, 28.8% 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	American Centrifuge Operating, LLC Top agencies DOE (Department of Energy)	$900,000,000	28.8%	Rank history: not on the FY2021–FY2024 lists and #17 in FY2025; up 15 since Jul 2024–Jun 2025.
2	Orano Federal Services LLC Top agencies DOE (Department of Energy)	$900,000,000	28.8%	Rank history: not on the FY2021–FY2024 lists and #20 in FY2025; up 17 since Jul 2024–Jun 2025.
3	General Matter, Inc. Top agencies DOE (Department of Energy)	$900,000,000	28.8%	Rank history: not on the FY2021–FY2024 lists and #21 in FY2025; up 17 since Jul 2024–Jun 2025.
4	Perimeter Solutions LP Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$234,979,714	7.5%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023, #1 in FY2024 and #1 in FY2025; down 3 since Jul 2024–Jun 2025.
5	Arctic Slope Regional Corporation Through Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$68,765,097	2.2%	Rank history: #5 in FY2021, #11 in FY2022, not on the FY2023 list, #2 in FY2024 and #2 in FY2025; down 3 since Jul 2024–Jun 2025.
6	Defense Energy Syndicate, LLC Top agencies DLA (Defense Logistics Agency)	$9,320,212	0.3%	Rank history: #4 in FY2021, #5 in FY2022, #7 in FY2023, #7 in FY2024 and #4 in FY2025; down 2 since Jul 2024–Jun 2025.
7	Teledyne Technologies Incorporated Through Teledyne Flir Defense, LLC Top agencies Army (Department of the Army)	$1,945,231	0.1%	Rank history: #14 in FY2021, #4 in FY2022, not on the FY2023 list, #9 in FY2024 and #6 in FY2025; down 1 since Jul 2024–Jun 2025.
8	Diazyme Laboratories Inc. Through General Atomics International Services Corp Top agencies USAF (Department of the Air Force)	$1,696,581	0.1%	Rank history: not on the FY2021–FY2024 lists and #8 in FY2025; unchanged since Jul 2024–Jun 2025.
9	TC Chemicals, LLC Top agencies DLA (Defense Logistics Agency)	$1,634,884	0.1%	Rank history: #3 in FY2021, #3 in FY2022, #3 in FY2023, #4 in FY2024 and #5 in FY2025; down 4 since Jul 2024–Jun 2025.
10	Aero Clean Technologies LLC Top agencies USAF (Department of the Air Force)	$1,428,430	<0.1%	Rank history: not on the FY2021 list, #40 in FY2022, #5 in FY2023, not on the FY2024 list and #9 in FY2025; down 1 since Jul 2024–Jun 2025.
11	Ursource, Inc. Top agencies DLA (Defense Logistics Agency)	$990,834	<0.1%	Rank history: not on the FY2021–FY2022 lists, #85 in FY2023, not on the FY2024 list and #45 in FY2025; up 39 since Jul 2024–Jun 2025.
12	3M Company Top agencies DOE (Department of Energy)	$973,780	<0.1%	Rank history: not on the FY2021–FY2023 lists, #6 in FY2024 and #3 in FY2025; down 9 since Jul 2024–Jun 2025.
13	A.m.s. Network, LLC 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$731,744	<0.1%	Rank history: #59 in FY2021, #23 in FY2022, #28 in FY2023, #20 in FY2024 and #22 in FY2025; up 8 since Jul 2024–Jun 2025.
14	BC Market Solutions LLC Top agencies Navy (Department of the Navy)	$649,917	<0.1%	Rank history: not on the FY2021–FY2022 lists, #23 in FY2023, #36 in FY2024 and #28 in FY2025; up 29 since Jul 2024–Jun 2025.
15	Steward Advanced Materials LLC Top agencies Navy (Department of the Navy)	$612,850	<0.1%	Rank history: not on the FY2021 list, #8 in FY2022, #21 in FY2023, #21 in FY2024 and #10 in FY2025; up 13 since Jul 2024–Jun 2025.
16	Hybrid Aero LLC Top agencies USAF (Department of the Air Force)	$609,000	<0.1%	Rank history: not on the FY2021–FY2022 lists, #10 in FY2023, not on the FY2024 list and #11 in FY2025; down 2 since Jul 2024–Jun 2025.
17	M.v. Maschinen-Vertriebsgesellschaft MBH Top agencies USAF (Department of the Air Force)	$557,665	<0.1%	Rank history: #67 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
18	Honeywell International Inc. Top agencies DLA (Defense Logistics Agency)	$485,889	<0.1%	Rank history: #25 in FY2021, #15 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
19	Phoenix Environmental Design, Inc. Top agencies VA (Department of Veterans Affairs)	$443,366	<0.1%	Rank history: not on the FY2021–FY2024 lists and #23 in FY2025; new, not ranked in Jul 2024–Jun 2025.
20	Orison Marketing L.L.C. 2 awardees Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$433,513	<0.1%	Rank history: #18 in FY2021, #13 in FY2022, #12 in FY2023, #13 in FY2024 and #14 in FY2025; up 6 since Jul 2024–Jun 2025.
21	Seneca Mineral Company Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$397,657	<0.1%	Rank history: #15 in FY2021, #9 in FY2022, #8 in FY2023, #27 in FY2024 and #12 in FY2025; down 10 since Jul 2024–Jun 2025.
22	Fairwinds Technologies LLC Top agencies Navy (Department of the Navy)	$327,941	<0.1%	Rank history: not on the FY2021–FY2024 lists and #27 in FY2025; new, not ranked in Jul 2024–Jun 2025.
23	Chela Ltd Top agencies USAF (Department of the Air Force)	$312,678	<0.1%	Rank history: not on the FY2021–FY2024 lists and #50 in FY2025; up 32 since Jul 2024–Jun 2025.
24	Envirotech Services, LLC Top agencies Army (Department of the Army)	$305,600	<0.1%	Rank history: #40 in FY2021, #36 in FY2022, #24 in FY2023, #24 in FY2024 and #29 in FY2025; up 6 since Jul 2024–Jun 2025.
25	Kolene Corp Top agencies Army (Department of the Army)	$287,040	<0.1%	Rank history: not on the FY2021 list, #43 in FY2022, not on the FY2023 list, #22 in FY2024 and #30 in FY2025; up 7 since Jul 2024–Jun 2025.
26	Morning Star Industries Inc. Top agencies USDA (Department of Agriculture) GSA (General Services Administration)	$267,389	<0.1%	Rank history: #16 in FY2021, #16 in FY2022, #44 in FY2023, #26 in FY2024 and #26 in FY2025; up 8 since Jul 2024–Jun 2025.
27	High Valley Products, Inc. Top agencies USAF (Department of the Air Force)	$247,997	<0.1%	Rank history: not on the FY2021–FY2024 lists and #13 in FY2025; down 2 since Jul 2024–Jun 2025.
28	Cytec Engineered Materials Inc. Top agencies Navy (Department of the Navy)	$241,265	<0.1%	Rank history: not on the FY2021–FY2024 lists and #31 in FY2025; new, not ranked in Jul 2024–Jun 2025.
29	Hudson Technologies Company Top agencies DLA (Defense Logistics Agency)	$223,611	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
30	Family Farm Supply Inc. Top agencies Army (Department of the Army)	$202,704	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
31	Cepeda Associates, Inc. Top agencies Navy (Department of the Navy)	$198,479	<0.1%	Rank history: #96 in FY2021, #39 in FY2022, #71 in FY2023, not on the FY2024 list and #66 in FY2025; up 41 since Jul 2024–Jun 2025.
32	OO Consulting LLC Top agencies USAF (Department of the Air Force)	$185,448	<0.1%	Rank history: not on the FY2021–FY2024 lists and #36 in FY2025; up 24 since Jul 2024–Jun 2025.
33	Momar, Incorporated Top agencies GSA (General Services Administration)	$183,451	<0.1%	Rank history: not on the FY2021 list, #25 in FY2022, #6 in FY2023, #10 in FY2024 and #7 in FY2025; down 26 since Jul 2024–Jun 2025.
34	Ecolab Inc. 3 awardees, including Nalco Company LLC and Barclay Water Management, Inc. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$181,641	<0.1%	Rank history: not on the FY2021–FY2022 lists, #48 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
35	Petroblend Corp. Top agencies USAF (Department of the Air Force)	$174,886	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
36	Schlotter GMBH & Co.kg Top agencies Army (Department of the Army)	$154,644	<0.1%	Rank history: not on the FY2021–FY2023 lists, #32 in FY2024 and #55 in FY2025; up 26 since Jul 2024–Jun 2025.
37	RTX Corporation Through Homogeneous Metals, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$149,996	<0.1%	Rank history: not on the FY2021–FY2024 lists and #38 in FY2025; new, not ranked in Jul 2024–Jun 2025.
38	Ordnance Technology Service, Inc. Top agencies DLA (Defense Logistics Agency)	$141,952	<0.1%	Rank history: not on the FY2021 list, #60 in FY2022, #78 in FY2023, not on the FY2024 list and #42 in FY2025; up 180 since Jul 2024–Jun 2025.
39	Specialty Coatings, Inc. Top agencies DLA (Defense Logistics Agency)	$139,263	<0.1%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2023, not on the FY2024 list and #64 in FY2025; up 62 since Jul 2024–Jun 2025.
40	Chemtreat, Inc. Top agencies WHS (DOD Washington Headquarters Service) DOJ (Department of Justice) USDA (Department of Agriculture)	$134,221	<0.1%	Rank history: not on the FY2021–FY2023 lists, #69 in FY2024 and #44 in FY2025; up 9 since Jul 2024–Jun 2025.
41	Aero Solutions Corporation Top agencies USAF (Department of the Air Force)	$127,575	<0.1%	Rank history: not on the FY2021 list, #6 in FY2022, #13 in FY2023, #14 in FY2024 and #25 in FY2025; down 31 since Jul 2024–Jun 2025.
42	EHB Supply Top agencies Navy (Department of the Navy)	$119,257	<0.1%	Rank history: not on the FY2021–FY2023 lists, #38 in FY2024 and #33 in FY2025; down 4 since Jul 2024–Jun 2025.
43	Mountain Horse LLC Top agencies DHS (Department of Homeland Security)	$112,588	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
44	Adirondack Electronics Inc. Top agencies Navy (Department of the Navy)	$97,935	<0.1%	Rank history: #55 in FY2021, #30 in FY2022, #80 in FY2023, #70 in FY2024 and #62 in FY2025; up 75 since Jul 2024–Jun 2025.
45	KAP Technochem Usa, Inc. Top agencies DLA (Defense Logistics Agency)	$95,977	<0.1%	Rank history: not on the FY2021 list, #89 in FY2022, not on the FY2023–FY2024 lists and #35 in FY2025; down 8 since Jul 2024–Jun 2025.
46	Westbay Auto Parts, Inc. Top agencies Navy (Department of the Navy)	$84,951	<0.1%	Rank history: not on the FY2021 list, #37 in FY2022, #75 in FY2023, #81 in FY2024 and #39 in FY2025; up 19 since Jul 2024–Jun 2025.
47	Newco Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$82,232	<0.1%	Rank history: not on the FY2021 list, #66 in FY2022, not on the FY2023 list, #29 in FY2024 and not on the FY2025 list; up 6 since Jul 2024–Jun 2025.
48	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$81,416	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 164 since Jul 2024–Jun 2025.
49	Hakuto Co Ltd Top agencies Navy (Department of the Navy)	$78,994	<0.1%	Rank history: #39 in FY2021, #32 in FY2022, #52 in FY2023, #43 in FY2024 and #56 in FY2025; up 24 since Jul 2024–Jun 2025.
50	Kilfrost Europe Top agencies USAF (Department of the Air Force)	$78,121	<0.1%	Rank history: not on the FY2021–FY2024 lists and #59 in FY2025; new, not ranked in Jul 2024–Jun 2025.
51	Sifco Industries Inc. Through Sifco Applied Surface Concepts, LLC Top agencies Navy (Department of the Navy)	$76,962	<0.1%	Rank history: not on the FY2021–FY2023 lists, #53 in FY2024 and #51 in FY2025; up 6 since Jul 2024–Jun 2025.
52	Dela Technology Corporation Top agencies DLA (Defense Logistics Agency)	$75,811	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
53	Wisconsin Pharmacal Co LLC Top agencies DLA (Defense Logistics Agency)	$74,880	<0.1%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2023, #94 in FY2024 and #90 in FY2025; up 44 since Jul 2024–Jun 2025.
54	Standard Fluids Corporation Top agencies DLA (Defense Logistics Agency)	$70,125	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
55	Aircraft & Commercial Enterprises, Inc. Top agencies DLA (Defense Logistics Agency)	$68,985	<0.1%	Rank history: not on the FY2021–FY2024 lists and #46 in FY2025; up 51 since Jul 2024–Jun 2025.
56	American Chemical and Equipment, Inc. Top agencies Army (Department of the Army)	$67,056	<0.1%	Rank history: not on the FY2021 list, #93 in FY2022, not on the FY2023 list, #86 in FY2024 and not on the FY2025 list; up 76 since Jul 2024–Jun 2025.
57	Gunther Salt Company Top agencies DOJ (Department of Justice)	$65,969	<0.1%	Rank history: #98 in FY2021, #38 in FY2022, #60 in FY2023, not on the FY2024 list and #93 in FY2025; up 124 since Jul 2024–Jun 2025.
58	V2X, Inc. Through V2X Systems LLC Top agencies USAF (Department of the Air Force)	$64,755	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
59	Powders On Demand LLC Top agencies Navy (Department of the Navy)	$63,505	<0.1%	Rank history: not on the FY2021–FY2024 lists and #52 in FY2025; up 19 since Jul 2024–Jun 2025.
60	Laser Plus Imaging, LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$63,496	<0.1%	Rank history: not on the FY2021–FY2023 lists, #82 in FY2024 and not on the FY2025 list; up 44 since Jul 2024–Jun 2025.
61	Strem Chemicals Inc. Top agencies Navy (Department of the Navy)	$63,217	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
62	Industrial Water Engineering Inc. Top agencies HHS (Department of Health and Human Services)	$58,742	<0.1%	Rank history: not on the FY2021–FY2024 lists and #70 in FY2025; up 13 since Jul 2024–Jun 2025.
63	Omni Logistics, Inc. Top agencies USAF (Department of the Air Force)	$57,091	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
64	B.c.i. LLC Top agencies DLA (Defense Logistics Agency)	$56,470	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
65	Addcon GMBH Top agencies USAF (Department of the Air Force)	$54,036	<0.1%	Rank history: not on the FY2021–FY2023 lists, #56 in FY2024 and not on the FY2025 list; down 17 since Jul 2024–Jun 2025.
66	Chem-Aqua Inc Top agencies DOJ (Department of Justice)	$52,000	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
67	Libra Realty Group, Inc. Top agencies DHA (Defense Health Agency)	$50,715	<0.1%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2023, #80 in FY2024 and #73 in FY2025; up 14 since Jul 2024–Jun 2025.
68	Takeda Kaseihin Co.,Ltd. Top agencies Navy (Department of the Navy)	$50,013	<0.1%	Rank history: not on the FY2021–FY2023 lists, #75 in FY2024 and #80 in FY2025; up 48 since Jul 2024–Jun 2025.
69	The Hiller Companies LLC Top agencies Navy (Department of the Navy)	$49,491	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
70	R.e. Darling Co., Inc. Top agencies Navy (Department of the Navy)	$49,135	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
71	Ninja De-Icer, LLC Top agencies VA (Department of Veterans Affairs)	$48,819	<0.1%	Rank history: not on the FY2021–FY2023 lists, #79 in FY2024 and #77 in FY2025; up 91 since Jul 2024–Jun 2025.
72	Mecx, Inc. Top agencies DOJ (Department of Justice)	$48,690	<0.1%	Rank history: not on the FY2021–FY2022 lists, #22 in FY2023 and not on the FY2024–FY2025 lists; up 84 since Jul 2024–Jun 2025.
73	Hubbard-Hall Inc. Top agencies Army (Department of the Army)	$46,429	<0.1%	Rank history: #38 in FY2021, #57 in FY2022, #64 in FY2023, #47 in FY2024 and #63 in FY2025; up 23 since Jul 2024–Jun 2025.
74	Chemble Solutions, LLC Top agencies Commerce (Department of Commerce)	$45,045	<0.1%	Rank history: not on the FY2021–FY2023 lists, #23 in FY2024 and #82 in FY2025; down 45 since Jul 2024–Jun 2025.
75	Arhab LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$44,110	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
76	Polydyne Inc. Top agencies Navy (Department of the Navy)	$42,011	<0.1%	Rank history: not on the FY2021–FY2024 lists and #72 in FY2025; up 34 since Jul 2024–Jun 2025.
77	Illinois Tool Works Inc. Through QSA Global Inc. Top agencies Navy (Department of the Navy)	$40,596	<0.1%	Rank history: not on the FY2021–FY2023 lists, #85 in FY2024 and #91 in FY2025; up 12 since Jul 2024–Jun 2025.
78	Berven Industries LLC Top agencies USAF (Department of the Air Force)	$39,995	<0.1%	Rank history: not on the FY2021–FY2023 lists, #93 in FY2024 and #48 in FY2025; down 27 since Jul 2024–Jun 2025.
79	Tattersall Supply, LLC Top agencies Army (Department of the Army)	$38,970	<0.1%	Rank history: #37 in FY2021, #63 in FY2022, #72 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
80	John Chadwick Corporation Top agencies DLA (Defense Logistics Agency)	$38,800	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
81	New Gmco, LLC Top agencies USAF (Department of the Air Force)	$38,750	<0.1%	Rank history: not on the FY2021–FY2024 lists and #61 in FY2025; up 27 since Jul 2024–Jun 2025.
82	Vertex LLC Top agencies DLA (Defense Logistics Agency)	$37,497	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
83	Veteran Legacy LLC Top agencies Army (Department of the Army)	$37,136	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
84	Patz Materials and Technologies LLC Top agencies NASA (National Aeronautics and Space Administration)	$36,694	<0.1%	Rank history: not on the FY2021–FY2024 lists and #92 in FY2025; new, not ranked in Jul 2024–Jun 2025.
85	American Classic Construction Inc. Top agencies Army (Department of the Army)	$35,046	<0.1%	Rank history: not on the FY2021–FY2023 lists, #100 in FY2024 and #95 in FY2025; new, not ranked in Jul 2024–Jun 2025.
86	Ibide Corporation Top agencies DLA (Defense Logistics Agency)	$34,896	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 77 since Jul 2024–Jun 2025.
87	Socomore Holdings LLC Through Dysol Inc. Top agencies DLA (Defense Logistics Agency)	$34,163	<0.1%	Rank history: not on the FY2021–FY2023 lists, #55 in FY2024 and not on the FY2025 list; down 20 since Jul 2024–Jun 2025.
88	International Chemstar Incorporated Top agencies DLA (Defense Logistics Agency)	$31,382	<0.1%	Rank history: not on the FY2021–FY2022 lists, #93 in FY2023, #72 in FY2024 and #68 in FY2025; down 17 since Jul 2024–Jun 2025.
89	Friss Consulting LLC Top agencies VA (Department of Veterans Affairs)	$31,200	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 50 since Jul 2024–Jun 2025.
90	Burhani Enterprises Inc. Top agencies DLA (Defense Logistics Agency)	$28,864	<0.1%	Rank history: not on the FY2021–FY2022 lists, #87 in FY2023 and not on the FY2024–FY2025 lists; up 39 since Jul 2024–Jun 2025.
91	INO Therapeutics LLC Top agencies VA (Department of Veterans Affairs)	$28,784	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
92	R.m. Waite Co., LLC Top agencies GSA (General Services Administration)	$27,317	<0.1%	Rank history: not on the FY2021–FY2023 lists, #68 in FY2024 and #83 in FY2025; down 22 since Jul 2024–Jun 2025.
93	Security Equipment Inc. Top agencies DOJ (Department of Justice)	$27,235	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 73 since Jul 2024–Jun 2025.
94	Toray Tcac Holding USA Inc. Through Toray Advanced Composites Usa, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$26,862	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
95	United Mineral & Chemical Corp Top agencies Navy (Department of the Navy)	$25,258	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
96	Detectachem Inc. Top agencies DHS (Department of Homeland Security)	$24,921	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
97	Industrial Tooling & Supply LLC Top agencies Army (Department of the Army)	$24,833	<0.1%	Rank history: not on the FY2021–FY2023 lists, #66 in FY2024 and #75 in FY2025; up 28 since Jul 2024–Jun 2025.
98	Lee Engineering Supply Company, Inc. Top agencies DLA (Defense Logistics Agency)	$24,744	<0.1%	Rank history: not on the FY2021–FY2023 lists, #92 in FY2024 and #97 in FY2025; down 32 since Jul 2024–Jun 2025.
99	Genesis JIT LLC Top agencies Army (Department of the Army)	$24,349	<0.1%	Rank history: not on the FY2021 list, #84 in FY2022 and not on the FY2023–FY2025 lists; up 46 since Jul 2024–Jun 2025.
100	SZY Holdings, LLC Top agencies DLA (Defense Logistics Agency)	$22,762	<0.1%	Rank history: #95 in FY2021, #97 in FY2022, #76 in FY2023, #57 in FY2024 and not on the FY2025 list; down 8 since Jul 2024–Jun 2025.

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100 of 197 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 $3.13 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.
Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
Rank changes compare with Jul 2024–Jun 2025. "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.
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 6850 contractors in Jul 2025–Jun 2026?

1. American Centrifuge Operating, LLC ($900M), 2. Orano Federal Services LLC ($900M), 3. General Matter, Inc. ($900M), 4. Perimeter Solutions LP ($235M), 5. Arctic Slope Regional Corporation ($68.8M), 6. Defense Energy Syndicate, LLC ($9.32M), 7. Teledyne Technologies Incorporated ($1.95M), 8. Diazyme Laboratories Inc. ($1.7M), 9. TC Chemicals, LLC ($1.63M), 10. Aero Clean Technologies LLC ($1.43M).

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