Top 100 Contractors in PSC 6850: Miscellaneous Chemical Specialties, FY2023

Name: Top 100 Contractors in PSC 6850: Miscellaneous Chemical Specialties, FY2023
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

Parent companies by net contract obligations Oct 1, 2022 – Sep 30, 2023 Code page on GovTribe

The top 10 won 83% of FY2023 PSC 6850 contract dollars

Contract obligations: $125,244,045 Net of deobligations, by contracts coded PSC 6850
Contractors: 246 Parent companies with an obligation
Largest contractor: Science Applications International Corporation $78 million, 58.8% of obligations
Data as of: Oct 14, 2026

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

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Science Applications International Corporation Through Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$77,963,973	58.8%	Rank history: #1 in FY2021, #1 in FY2022, #3 in FY2024 and not on the FY2025 list; unchanged since FY2022.
2	Perimeter Solutions LP Top agencies USDA (Department of Agriculture)	$13,704,738	10.3%	Rank history: #2 in FY2021, #2 in FY2022, #1 in FY2024 and #1 in FY2025; unchanged since FY2022.
3	TC Chemicals, LLC Top agencies DLA (Defense Logistics Agency)	$6,879,167	5.2%	Rank history: #3 in FY2021, #3 in FY2022, #4 in FY2024 and #5 in FY2025; unchanged since FY2022.
4	Flir Systems Inc. Through Teledyne Flir Defense, LLC Top agencies Army (Department of the Army)	$3,785,944	2.9%	Rank history: #8 in FY2021, #12 in FY2022, #8 in FY2024 and not on the FY2025 list; up 8 since FY2022.
5	Aero Clean Technologies LLC Top agencies USAF (Department of the Air Force)	$2,198,400	1.7%	Rank history: not on the FY2021 list, #40 in FY2022, not on the FY2024 list and #9 in FY2025; up 35 since FY2022.
6	Momar, Incorporated Top agencies GSA (General Services Administration) USDA (Department of Agriculture)	$1,457,070	1.1%	Rank history: not on the FY2021 list, #25 in FY2022, #10 in FY2024 and #7 in FY2025; up 19 since FY2022.
7	Defense Energy Syndicate, LLC Top agencies DLA (Defense Logistics Agency)	$1,164,286	0.9%	Rank history: #4 in FY2021, #5 in FY2022, #7 in FY2024 and #4 in FY2025; down 2 since FY2022.
8	Seneca Mineral Company Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$1,051,073	0.8%	Rank history: #15 in FY2021, #9 in FY2022, #27 in FY2024 and #12 in FY2025; up 1 since FY2022.
9	Clariant AG Through Clariant Vertrieb (Deutschland) GMBH & Co. KG Top agencies USAF (Department of the Air Force)	$860,377	0.6%	Rank history: #22 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
10	Hybrid Aero LLC Top agencies USAF (Department of the Air Force)	$845,700	0.6%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #11 in FY2025; new.
11	All Terrain Fire Support Inc. Top agencies USDA (Department of Agriculture)	$678,000	0.5%	Rank history: not on the FY2021 list, #14 in FY2022, not on the FY2024 list and #24 in FY2025; up 3 since FY2022.
12	Orison Marketing LLC 2 awardees Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$605,810	0.5%	Rank history: #18 in FY2021, #13 in FY2022, #13 in FY2024 and #14 in FY2025; up 1 since FY2022.
13	Aero Solutions Corporation Top agencies USAF (Department of the Air Force)	$596,205	0.4%	Rank history: not on the FY2021 list, #6 in FY2022, #14 in FY2024 and #25 in FY2025; down 7 since FY2022.
14	Water & Energy Systems Technology, Inc. Top agencies USAF (Department of the Air Force)	$484,276	0.4%	Rank history: not on the FY2021 list, #21 in FY2022, #15 in FY2024 and #41 in FY2025; up 7 since FY2022.
15	Illumina, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$461,226	0.3%	Rank history: #23 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
16	General Atomic Technologies Corporation Through General Atomics International Services Corp Top agencies USAF (Department of the Air Force)	$434,542	0.3%	Rank history: #6 in FY2021, #10 in FY2022, #11 in FY2024 and not on the FY2025 list; down 6 since FY2022.
17	Ruptured Duck LLC Top agencies DLA (Defense Logistics Agency)	$425,214	0.3%	Rank history: not on the FY2021–FY2022 lists, #48 in FY2024 and #32 in FY2025; new.
18	Fidelis Sustainability Distribution LLC Top agencies VA (Department of Veterans Affairs)	$420,000	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
19	Eagle Safe Surfaces Colorado Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$406,738	0.3%	Rank history: not on the FY2021 list, #73 in FY2022 and not on the FY2024–FY2025 lists; up 54 since FY2022.
20	Hudson Technologies, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$395,600	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
21	Steward Advanced Materials LLC Top agencies Navy (Department of the Navy)	$297,155	0.2%	Rank history: not on the FY2021 list, #8 in FY2022, #21 in FY2024 and #10 in FY2025; down 13 since FY2022.
22	Mecx, Inc. Top agencies DOJ (Department of Justice)	$272,234	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
23	BC Market Solutions LLC Top agencies Navy (Department of the Navy)	$267,466	0.2%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2024 and #28 in FY2025; new.
24	Envirotech Services, LLC Top agencies Army (Department of the Army)	$260,793	0.2%	Rank history: #40 in FY2021, #36 in FY2022, #24 in FY2024 and #29 in FY2025; up 12 since FY2022.
25	RTX Corporation Through Homogeneous Metals, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$249,326	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
26	Kamtek Inc. Top agencies Army (Department of the Army)	$248,950	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
27	Ametek Inc. 2 awardees, including Ametek SCP Inc. and Spectro Scientific, Inc. Top agencies Navy (Department of the Navy)	$238,662	0.2%	Rank history: not on the FY2021–FY2022 lists, #35 in FY2024 and not on the FY2025 list; new.
28	A.M.S. Network LLC 2 awardees Top agencies DLA (Defense Logistics Agency)	$233,933	0.2%	Rank history: #59 in FY2021, #23 in FY2022, #20 in FY2024 and #22 in FY2025; down 5 since FY2022.
29	Danaher Corporation Through Chemtreat, Inc. Top agencies WHS (DOD Washington Headquarters Service) DOJ (Department of Justice)	$228,990	0.2%	Rank history: #47 in FY2021, #58 in FY2022 and not on the FY2024–FY2025 lists; up 29 since FY2022.
30	Aspen Water Inc Top agencies USAF (Department of the Air Force)	$221,224	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
31	VWR International LLC Through Nusil Technology LLC Top agencies Navy (Department of the Navy)	$209,478	0.2%	Rank history: not on the FY2021 list, #77 in FY2022 and not on the FY2024–FY2025 lists; up 46 since FY2022.
32	Best Technology Inc Top agencies NASA (National Aeronautics and Space Administration)	$199,897	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
33	Firelake Construction Inc. Top agencies USDA (Department of Agriculture)	$199,642	0.2%	Rank history: not on the FY2021 list, #74 in FY2022 and not on the FY2024–FY2025 lists; up 41 since FY2022.
34	GPC Foreign Contractor Consolidated Reporting Top agencies Army (Department of the Army)	$198,577	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
35	Intek Marine Technology, LLC Top agencies GSA (General Services Administration)	$198,231	0.1%	Rank history: not on the FY2021 list, #75 in FY2022, #83 in FY2024 and not on the FY2025 list; up 40 since FY2022.
36	Electronic Fluorocarbons, LLC Top agencies NASA (National Aeronautics and Space Administration)	$197,273	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
37	Rite-Kem, Inc. Top agencies GSA (General Services Administration) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$193,613	0.1%	Rank history: #80 in FY2021, #82 in FY2022, #37 in FY2024 and #78 in FY2025; up 45 since FY2022.
38	Ship 2 Shore USA Inc. Top agencies Navy (Department of the Navy)	$191,412	0.1%	Rank history: not on the FY2021–FY2022 lists, #18 in FY2024 and not on the FY2025 list; new.
39	Farm & City Supply, L.L.C. Top agencies DLA (Defense Logistics Agency)	$186,654	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 66 since FY2022.
40	Irisys, Inc. Through Societal Cdmo San Diego, LLC Top agencies HHS (Department of Health and Human Services)	$186,000	0.1%	Rank history: #10 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
41	Mcgean-Rohco Inc. 2 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$180,831	0.1%	Rank history: #29 in FY2021, #45 in FY2022 and not on the FY2024–FY2025 lists; up 4 since FY2022.
42	Compagnie Merieux Alliance Through Biofire Diagnostics LLC Top agencies VA (Department of Veterans Affairs)	$167,054	0.1%	Rank history: #70 in FY2021, #17 in FY2022 and not on the FY2024–FY2025 lists; down 25 since FY2022.
43	OST Services, LLC Top agencies VA (Department of Veterans Affairs)	$156,985	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
44	Morning Star Industries Inc. Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture) GSA (General Services Administration)	$151,751	0.1%	Rank history: #16 in FY2021, #16 in FY2022, #26 in FY2024 and #26 in FY2025; down 28 since FY2022.
45	Powder Alloy Corporation Top agencies NASA (National Aeronautics and Space Administration)	$148,125	0.1%	Rank history: #79 in FY2021, not on the FY2022 list, not on the FY2024 list and #87 in FY2025; returned.
46	Inland Technology Incorporated Top agencies Army (Department of the Army) Navy (Department of the Navy)	$121,584	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
47	Professional Innovative Solutions LLC Top agencies DLA (Defense Logistics Agency)	$120,269	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
48	Ecolab Inc. 2 awardees, including Nalco Company LLC Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security)	$119,764	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
49	Metgreen Solutions Inc Top agencies Navy (Department of the Navy)	$118,611	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
50	Gadsden Industrial Distributors, Inc. Top agencies Army (Department of the Army)	$113,560	0.1%	Rank history: #74 in FY2021, not on the FY2022 list, #61 in FY2024 and not on the FY2025 list; up 59 since FY2022.
51	Adapco LLC Top agencies NASA (National Aeronautics and Space Administration)	$111,040	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
52	Hakuto Co Ltd Top agencies Navy (Department of the Navy)	$106,710	0.1%	Rank history: #39 in FY2021, #32 in FY2022, #43 in FY2024 and #56 in FY2025; down 20 since FY2022.
53	Praxair Distribution Inc. 3 awardees, including Linde Advanced Material Technologies Inc. and Linde Gas & Equipment Inc. Top agencies NASA (National Aeronautics and Space Administration) VA (Department of Veterans Affairs)	$105,767	0.1%	Rank history: #85 in FY2021, #65 in FY2022 and not on the FY2024–FY2025 lists; up 12 since FY2022.
54	Up Enterprises LLC Top agencies Navy (Department of the Navy)	$103,021	0.1%	Rank history: #35 in FY2021, #42 in FY2022, #62 in FY2024 and #65 in FY2025; down 12 since FY2022.
55	Addcon GMBH Top agencies USAF (Department of the Air Force)	$102,816	0.1%	Rank history: #57 in FY2021, #46 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
56	Fyve Star Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$102,644	0.1%	Rank history: #28 in FY2021, #81 in FY2022, not on the FY2024 list and #71 in FY2025; up 25 since FY2022.
57	Kiboni Beheer B.V. Through MB Optics B.V. Top agencies Navy (Department of the Navy)	$99,250	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
58	Acuity Specialty Products Inc 2 awardees, including Zep Italia S.R.L. Top agencies Navy (Department of the Navy)	$94,563	0.1%	Rank history: #56 in FY2021, #29 in FY2022, #63 in FY2024 and not on the FY2025 list; down 29 since FY2022.
59	Tomahawk Sourcing LLC Top agencies DLA (Defense Logistics Agency)	$93,800	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
60	Gunther Salt Company Top agencies DOJ (Department of Justice)	$90,509	0.1%	Rank history: #98 in FY2021, #38 in FY2022, not on the FY2024 list and #93 in FY2025; down 22 since FY2022.
61	France Custom Farming LLC Top agencies USDA (Department of Agriculture)	$86,825	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
62	Ryang H KIM Top agencies Army (Department of the Army)	$86,450	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
63	Reynolds Advanced Materials-U.s Inc. Top agencies Army (Department of the Army)	$84,243	0.1%	Rank history: #50 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
64	Hubbard-Hall Inc. Top agencies Army (Department of the Army)	$83,752	0.1%	Rank history: #38 in FY2021, #57 in FY2022, #47 in FY2024 and #63 in FY2025; down 7 since FY2022.
65	Government Scientific Source Inc. Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior)	$80,042	0.1%	Rank history: #19 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 90 since FY2022.
66	Trece Inc. Top agencies USDA (Department of Agriculture)	$76,920	0.1%	Rank history: #44 in FY2021, not on the FY2022 list, #60 in FY2024 and not on the FY2025 list; up 54 since FY2022.
67	Caprice Electronics, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$76,600	0.1%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2024 and not on the FY2025 list; up 112 since FY2022.
68	Custom Gas Solutions LLC Top agencies NASA (National Aeronautics and Space Administration)	$70,660	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
69	Specialty Coatings, Inc. Top agencies DLA (Defense Logistics Agency)	$70,444	0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #64 in FY2025; up 80 since FY2022.
70	Crescent Chemical Co., Inc. Top agencies DOI (Department of the Interior)	$67,800	0.1%	Rank history: #62 in FY2021, #54 in FY2022, #64 in FY2024 and not on the FY2025 list; down 16 since FY2022.
71	Cepeda Associates, Inc. Top agencies Navy (Department of the Navy)	$64,512	<0.1%	Rank history: #96 in FY2021, #39 in FY2022, not on the FY2024 list and #66 in FY2025; down 32 since FY2022.
72	Tattersall Supply, LLC Top agencies Army (Department of the Army)	$61,250	<0.1%	Rank history: #37 in FY2021, #63 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
73	Christeyns North America, LLC Top agencies VA (Department of Veterans Affairs)	$61,096	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
74	Sealed Air Corporation Top agencies DLA (Defense Logistics Agency)	$59,731	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
75	Westbay Auto Parts, Inc. Top agencies Navy (Department of the Navy)	$56,817	<0.1%	Rank history: not on the FY2021 list, #37 in FY2022, #81 in FY2024 and #39 in FY2025; down 38 since FY2022.
76	SZY Holdings, LLC Top agencies DLA (Defense Logistics Agency)	$56,151	<0.1%	Rank history: #95 in FY2021, #97 in FY2022, #57 in FY2024 and not on the FY2025 list; up 21 since FY2022.
77	W.r.a.i. Inc. Top agencies Navy (Department of the Navy)	$55,480	<0.1%	Rank history: #32 in FY2021, #56 in FY2022 and not on the FY2024–FY2025 lists; down 21 since FY2022.
78	Ordnance Technology Service, Inc. Top agencies DLA (Defense Logistics Agency)	$55,296	<0.1%	Rank history: not on the FY2021 list, #60 in FY2022, not on the FY2024 list and #42 in FY2025; down 18 since FY2022.
79	W.a. Cleary Corporation Top agencies Army (Department of the Army)	$54,180	<0.1%	Rank history: not on the FY2021–FY2022 lists, #41 in FY2024 and not on the FY2025 list; new.
80	Adirondack Electronics Inc. Top agencies Navy (Department of the Navy)	$51,010	<0.1%	Rank history: #55 in FY2021, #30 in FY2022, #70 in FY2024 and #62 in FY2025; down 50 since FY2022.
81	Libra Realty Group, Inc. Top agencies DHA (Defense Health Agency)	$50,715	<0.1%	Rank history: not on the FY2021–FY2022 lists, #80 in FY2024 and #73 in FY2025; new.
82	H. C. Starck Inc. Through Elmet Coldwater LLC Top agencies NASA (National Aeronautics and Space Administration)	$48,633	<0.1%	Rank history: not on the FY2021 list, #90 in FY2022 and not on the FY2024–FY2025 lists; up 8 since FY2022.
83	Waters Corporation Through Environmental Resource Associates, Inc. Top agencies DOI (Department of the Interior) Navy (Department of the Navy)	$47,558	<0.1%	Rank history: #66 in FY2021, #51 in FY2022 and not on the FY2024–FY2025 lists; down 32 since FY2022.
84	American Laboratories Inc. Top agencies USDA (Department of Agriculture)	$47,250	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
85	Ursource, Inc. Top agencies DLA (Defense Logistics Agency)	$46,716	<0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #45 in FY2025; up 110 since FY2022.
86	Giga, Inc. Top agencies DLA (Defense Logistics Agency)	$46,260	<0.1%	Rank history: not on the FY2021–FY2022 lists, #77 in FY2024 and not on the FY2025 list; up 18 since FY2022.
87	Burhani Enterprises Inc. Top agencies DLA (Defense Logistics Agency)	$45,613	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 43 since FY2022.
88	Dukes A&W Enterprises, LLC Top agencies Army (Department of the Army)	$42,640	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
89	LMH Trading LLC Top agencies Army (Department of the Army)	$41,200	<0.1%	Rank history: not on the FY2021 list, #92 in FY2022 and not on the FY2024–FY2025 lists; up 3 since FY2022.
90	Absolute Standards Inc. Top agencies DOI (Department of the Interior)	$40,560	<0.1%	Rank history: not on the FY2021–FY2022 lists, #89 in FY2024 and not on the FY2025 list; new.
91	Wisconsin Pharmacal Co LLC Top agencies DLA (Defense Logistics Agency)	$39,000	<0.1%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2024 and #90 in FY2025; new.
92	LSC Environmental Products LLC Top agencies Navy (Department of the Navy)	$38,058	<0.1%	Rank history: #84 in FY2021, not on the FY2022 list, #99 in FY2024 and not on the FY2025 list; returned.
93	International Chemstar Incorporated Top agencies DLA (Defense Logistics Agency)	$37,820	<0.1%	Rank history: not on the FY2021–FY2022 lists, #72 in FY2024 and #68 in FY2025; new.
94	Water Treatment Services Inc. Top agencies DLA (Defense Logistics Agency)	$37,262	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
95	Solvus Global LLC Top agencies Navy (Department of the Navy)	$36,343	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 30 since FY2022.
96	The Dewey Electronics Corporation Top agencies DLA (Defense Logistics Agency)	$36,109	<0.1%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2024 and #79 in FY2025; up 75 since FY2022.
97	10X Genomics, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$35,921	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
98	PAK Technologies Inc. Top agencies Commerce (Department of Commerce)	$35,562	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 21 since FY2022.
99	Aktion, Inc. Top agencies DLA (Defense Logistics Agency)	$35,119	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 68 since FY2022.
100	Mercedes Medical, LLC Top agencies USAF (Department of the Air Force)	$34,396	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.

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100 of 246 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 $133 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 2023 ran Oct 1, 2022 – Sep 30, 2023. 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 FY2022. "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 FY2022 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 6850 contractors in FY2023?

1. Science Applications International Corporation ($78M), 2. Perimeter Solutions LP ($13.7M), 3. TC Chemicals, LLC ($6.88M), 4. Flir Systems Inc. ($3.79M), 5. Aero Clean Technologies LLC ($2.2M), 6. Momar, Incorporated ($1.46M), 7. Defense Energy Syndicate, LLC ($1.16M), 8. Seneca Mineral Company ($1.05M), 9. Clariant AG ($860K), 10. Hybrid Aero LLC ($846K).

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