Top 100 Contractors in NAICS 3251: Basic Chemical Manufacturing, FY2022

Name: Top 100 Contractors in NAICS 3251: Basic Chemical Manufacturing, FY2022
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

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

The top 10 won 73% of FY2022 NAICS 3251 contract dollars

Contract obligations: $413,703,061 Net of deobligations, by contracts coded NAICS 3251 or a code under it
Contractors: 493 Parent companies with an obligation
Largest contractor: Mid-America Conversion Services, LLC $117 million, 26.2% 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	Mid-America Conversion Services, LLC Top agencies DOE (Department of Energy)	$117,059,418	26.2%	Rank history: #1 in FY2021, #2 in FY2023, #2 in FY2024 and #1 in FY2025; unchanged since FY2021.
2	Air Products and Chemicals, Inc. Top agencies NASA (National Aeronautics and Space Administration) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$63,592,237	14.2%	Rank history: #2 in FY2021, #1 in FY2023, #1 in FY2024 and #2 in FY2025; unchanged since FY2021.
3	Praxair Distribution Inc. 11 awardees, including Linde Inc., Linde Gas & Equipment Inc. and Linde Gas Espana, S.A. Top agencies DLA (Defense Logistics Agency) NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$30,535,988	6.8%	Rank history: #4 in FY2021, not on the FY2023 list, #18 in FY2024 and not on the FY2025 list; up 1 since FY2021.
4	BWX Technologies, Inc. Through Nuclear Fuel Services Inc. Top agencies DOE (Department of Energy)	$26,082,986	5.8%	Rank history: not on the FY2021 list, #3 in FY2023, #3 in FY2024 and #3 in FY2025; new.
5	CF Industries Holdings Inc. Through CF Industries Nitrogen LLC Top agencies DLA (Defense Logistics Agency)	$25,380,434	5.7%	Rank history: #11 in FY2021, #17 in FY2023, #25 in FY2024 and not on the FY2025 list; up 6 since FY2021.
6	Airgas Inc. 19 awardees, including Airgas Usa, LLC, Airgas Carbonic, Inc. and Air Liquide Italia Service S.R.L. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) VA (Department of Veterans Affairs)	$20,429,811	4.6%	Rank history: #5 in FY2021, #20 in FY2023, #67 in FY2024 and #93 in FY2025; down 1 since FY2021.
7	Linde LLC 2 awardees, including Messer LLC and Messer Gas Puerto Rico Inc. Top agencies NASA (National Aeronautics and Space Administration) DOI (Department of the Interior) DMEA (Defense Microelectronics Activity)	$15,748,850	3.5%	Rank history: #7 in FY2021, #5 in FY2023, #9 in FY2024 and #14 in FY2025; unchanged since FY2021.
8	Calca Solutions, LLC 2 awardees Top agencies DLA (Defense Logistics Agency)	$9,901,331	2.2%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #4 in FY2025; new.
9	RAS Enterprises LLC Top agencies VA (Department of Veterans Affairs) DOE (Department of Energy) Army (Department of the Army)	$9,764,814	2.2%	Rank history: #6 in FY2021, #10 in FY2023, #10 in FY2024 and #9 in FY2025; down 3 since FY2021.
10	Matheson TRI-Gas Inc. 4 awardees, including Nippon Sanso Matheson, Inc. and Nippon Sanso Deutschland GMBH Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs) NASA (National Aeronautics and Space Administration)	$7,007,643	1.6%	Rank history: #10 in FY2021, #19 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2021.
11	Cliffside Refiners L P Top agencies DOI (Department of the Interior)	$6,003,824	1.3%	Rank history: #9 in FY2021, #9 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2021.
12	Frontier Technology Corp. Top agencies Army (Department of the Army)	$4,519,820	1.0%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
13	Paula F Price Enterprises LLC 2 awardees Top agencies Army (Department of the Army) VA (Department of Veterans Affairs)	$4,156,676	0.9%	Rank history: not on the FY2021 list, #18 in FY2023, #17 in FY2024 and #15 in FY2025; up 103 since FY2021.
14	RCG of North Carolina, LLC Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy) Army (Department of the Army)	$2,533,121	0.6%	Rank history: #23 in FY2021, #13 in FY2023, #12 in FY2024 and #12 in FY2025; up 9 since FY2021.
15	Lonza Group AG 2 awardees, including Calca Solutions, LLC and Lonza LLC Top agencies DLA (Defense Logistics Agency) Treasury (Department of the Treasury)	$2,500,032	0.6%	Rank history: #8 in FY2021, #4 in FY2023, #26 in FY2024 and not on the FY2025 list; down 7 since FY2021.
16	DPA Investments Inc. Through Usalco, LLC Top agencies Army (Department of the Army)	$2,395,797	0.5%	Rank history: #19 in FY2021, #23 in FY2023, #37 in FY2024 and not on the FY2025 list; up 3 since FY2021.
17	Global Gases Group FZE Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$2,233,280	0.5%	Rank history: #20 in FY2021, #21 in FY2023, #65 in FY2024 and #27 in FY2025; up 3 since FY2021.
18	Kuehne Chemical Company, Inc. Top agencies Army (Department of the Army)	$2,015,422	0.5%	Rank history: #14 in FY2021, #26 in FY2023, #20 in FY2024 and #30 in FY2025; down 4 since FY2021.
19	Green Lantern, LLC Top agencies Army (Department of the Army) Commerce (Department of Commerce) DHA (Defense Health Agency)	$1,891,099	0.4%	Rank history: #17 in FY2021, #30 in FY2023, #29 in FY2024 and #31 in FY2025; down 2 since FY2021.
20	Suffolk Solutions, Inc. Top agencies Army (Department of the Army)	$1,674,272	0.4%	Rank history: #27 in FY2021, not on the FY2023–FY2024 lists and #49 in FY2025; up 7 since FY2021.
21	3M Company Through 3M Technical Ceramics Inc. Top agencies Navy (Department of the Navy)	$1,583,600	0.4%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 136 since FY2021.
22	Goodrich Gas Inc. Top agencies Army (Department of the Army)	$1,454,852	0.3%	Rank history: #29 in FY2021, #33 in FY2023, #43 in FY2024 and #44 in FY2025; up 7 since FY2021.
23	Emergency Physicians Medical Group P.C. 2 awardees, including Biosearch Technologies, Inc. and VHG Labs Inc. Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy)	$1,445,912	0.3%	Rank history: #13 in FY2021 and not on the FY2023–FY2025 lists; down 10 since FY2021.
24	Amerochem Corporation Top agencies Navy (Department of the Navy)	$1,426,922	0.3%	Rank history: #26 in FY2021, #28 in FY2023, #23 in FY2024 and #41 in FY2025; up 2 since FY2021.
25	Inchcape Shipping Services Dubai LLC Top agencies DLA (Defense Logistics Agency)	$1,333,989	0.3%	Rank history: #18 in FY2021, #40 in FY2023, #30 in FY2024 and #37 in FY2025; down 7 since FY2021.
26	The Gas Company, LLC Top agencies Navy (Department of the Navy)	$1,313,011	0.3%	Rank history: #35 in FY2021, #32 in FY2023, #61 in FY2024 and not on the FY2025 list; up 9 since FY2021.
27	Dixie Chemical Company, Inc. Top agencies DLA (Defense Logistics Agency)	$1,185,529	0.3%	Rank history: #16 in FY2021, #14 in FY2023, #21 in FY2024 and not on the FY2025 list; down 11 since FY2021.
28	Tangram Chemical LLC Top agencies Navy (Department of the Navy)	$1,123,173	0.3%	Rank history: #36 in FY2021, #34 in FY2023, #64 in FY2024 and #51 in FY2025; up 8 since FY2021.
29	Danaher Corporation 3 awardees, including Integrated DNA Technologies, Inc. and Leica Microsystems Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) Navy (Department of the Navy)	$1,112,035	0.2%	Rank history: #21 in FY2021 and not on the FY2023–FY2025 lists; down 8 since FY2021.
30	Roberts Oxygen Co Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) EPA (Environmental Protection Agency)	$1,089,664	0.2%	Rank history: #25 in FY2021, #29 in FY2023, #22 in FY2024 and #26 in FY2025; down 5 since FY2021.
31	Resintech Inc. Top agencies Navy (Department of the Navy)	$1,048,975	0.2%	Rank history: #22 in FY2021, #27 in FY2023, #39 in FY2024 and #47 in FY2025; down 9 since FY2021.
32	Metadyne, Inc. Top agencies Army (Department of the Army)	$956,200	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
33	Medical Equipment & Supplies of America LLC Top agencies VA (Department of Veterans Affairs) Commerce (Department of Commerce) DOJ (Department of Justice)	$940,130	0.2%	Rank history: #41 in FY2021, #48 in FY2023, #42 in FY2024 and #36 in FY2025; up 8 since FY2021.
34	Carus LLC Top agencies Army (Department of the Army)	$936,408	0.2%	Rank history: #34 in FY2021, #76 in FY2023, #35 in FY2024 and #59 in FY2025; unchanged since FY2021.
35	City Chemical LLC Top agencies Navy (Department of the Navy)	$811,964	0.2%	Rank history: #33 in FY2021, #38 in FY2023, #28 in FY2024 and #33 in FY2025; down 2 since FY2021.
36	Mcgean-Rohco Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$774,048	0.2%	Rank history: #52 in FY2021, #53 in FY2023 and not on the FY2024–FY2025 lists; up 16 since FY2021.
37	Intelligent Material Solutions, Inc. Top agencies Army (Department of the Army)	$724,500	0.2%	Rank history: #86 in FY2021, #59 in FY2023, #90 in FY2024 and not on the FY2025 list; up 49 since FY2021.
38	Red River Resources LLC Top agencies DOI (Department of the Interior)	$717,384	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 236 since FY2021.
39	Polydyne Inc. Top agencies Army (Department of the Army)	$659,334	0.1%	Rank history: #50 in FY2021 and not on the FY2023–FY2025 lists; up 11 since FY2021.
40	Praxair Inc. 2 awardees, including Linde Inc. Top agencies DLA (Defense Logistics Agency) NASA (National Aeronautics and Space Administration)	$640,487	0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #9 in FY2024 and #14 in FY2025; new.
41	GC3 Specialty Chemicals Inc. Top agencies Army (Department of the Army)	$636,427	0.1%	Rank history: #38 in FY2021, not on the FY2023–FY2024 lists and #73 in FY2025; down 3 since FY2021.
42	Merrimac Petroleum, Inc. Top agencies Army (Department of the Army)	$586,335	0.1%	Rank history: #39 in FY2021, #51 in FY2023, #54 in FY2024 and #95 in FY2025; down 3 since FY2021.
43	Dubois Chemicals Inc. Top agencies Army (Department of the Army)	$583,022	0.1%	Rank history: #44 in FY2021, not on the FY2023 list, #57 in FY2024 and not on the FY2025 list; up 1 since FY2021.
44	Hudson Technologies, Inc. Top agencies Navy (Department of the Navy)	$570,615	0.1%	Rank history: not on the FY2021 list, #47 in FY2023, #58 in FY2024 and #8 in FY2025; new.
45	Marianas Gas Corp Top agencies DHA (Defense Health Agency) Navy (Department of the Navy)	$569,058	0.1%	Rank history: #37 in FY2021, #41 in FY2023, #52 in FY2024 and #43 in FY2025; down 8 since FY2021.
46	R & M Government Services Inc. Top agencies Army (Department of the Army) USDA (Department of Agriculture) VA (Department of Veterans Affairs)	$551,315	0.1%	Rank history: #32 in FY2021, not on the FY2023 list, #81 in FY2024 and not on the FY2025 list; down 14 since FY2021.
47	NCA Solutions, LLC Top agencies Army (Department of the Army)	$546,400	0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #85 in FY2024 and #100 in FY2025; up 228 since FY2021.
48	Christopher I. Oyolokor SR. Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) DOI (Department of the Interior)	$489,473	0.1%	Rank history: not on the FY2021 list, #56 in FY2023, #70 in FY2024 and #81 in FY2025; up 60 since FY2021.
49	JE Hurley Inc. Top agencies Army (Department of the Army)	$485,085	0.1%	Rank history: #79 in FY2021 and not on the FY2023–FY2025 lists; up 30 since FY2021.
50	Daiichi Bussan Co . Ltd Top agencies USAF (Department of the Air Force)	$481,248	0.1%	Rank history: #43 in FY2021, #57 in FY2023, #79 in FY2024 and not on the FY2025 list; down 7 since FY2021.
51	Eagle Home Medical Corp Top agencies VA (Department of Veterans Affairs)	$473,668	0.1%	Rank history: #92 in FY2021 and not on the FY2023–FY2025 lists; up 41 since FY2021.
52	Oerlikon Metco (US) Inc. Top agencies USAF (Department of the Air Force)	$470,181	0.1%	Rank history: #71 in FY2021 and not on the FY2023–FY2025 lists; up 19 since FY2021.
53	Industrial Chemicals Corporation Top agencies DOI (Department of the Interior)	$439,601	0.1%	Rank history: #67 in FY2021, #100 in FY2023, #77 in FY2024 and not on the FY2025 list; up 14 since FY2021.
54	Momar, Incorporated Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico)	$438,000	0.1%	Rank history: not on the FY2021 list, #58 in FY2023, #53 in FY2024 and not on the FY2025 list; new.
55	Coastal Energy, Inc. Top agencies USAF (Department of the Air Force)	$435,750	0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #50 in FY2025; up 67 since FY2021.
56	Cryo-Express, LLC Top agencies HHS (Department of Health and Human Services) Commerce (Department of Commerce) DHA (Defense Health Agency)	$416,977	0.1%	Rank history: #62 in FY2021, #31 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2021.
57	Applied LNG Technologies LLC Top agencies DOI (Department of the Interior)	$412,678	0.1%	Rank history: not on the FY2021 list, #54 in FY2023, not on the FY2024 list and #91 in FY2025; new.
58	Nexair LLC Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$412,428	0.1%	Rank history: #47 in FY2021, #61 in FY2023, #47 in FY2024 and #64 in FY2025; down 11 since FY2021.
59	Chuo Shoko Co., Ltd Top agencies Navy (Department of the Navy)	$398,000	0.1%	Rank history: #54 in FY2021, #75 in FY2023, #96 in FY2024 and not on the FY2025 list; down 5 since FY2021.
60	International Gas & Services Top agencies DLA (Defense Logistics Agency)	$393,499	0.1%	Rank history: #58 in FY2021, #72 in FY2023, #87 in FY2024 and #90 in FY2025; down 2 since FY2021.
61	Leland Limited Inc. Top agencies DLA (Defense Logistics Agency)	$393,014	0.1%	Rank history: #87 in FY2021, not on the FY2023 list, #19 in FY2024 and #88 in FY2025; up 26 since FY2021.
62	Government Scientific Source Inc. Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) USAF (Department of the Air Force)	$387,895	0.1%	Rank history: #42 in FY2021, #43 in FY2023, #66 in FY2024 and #86 in FY2025; down 20 since FY2021.
63	General Atomic Technologies Corporation Through General Atomics International Services Corp Top agencies USAF (Department of the Air Force)	$386,029	0.1%	Rank history: #96 in FY2021 and not on the FY2023–FY2025 lists; up 33 since FY2021.
64	PPG Industries, Inc. 2 awardees, including PPG Architectural Finishes, Inc. and PRC - Desoto International, Inc. Top agencies Navy (Department of the Navy)	$382,842	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 388 since FY2021.
65	Thermo Electron Corporation 5 awardees, including Life Technologies Corporation, EP Scientific Products LLC and Fisher Scientific Company L.L.C. Top agencies DOI (Department of the Interior) HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$380,252	0.1%	Rank history: #68 in FY2021, #93 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2021.
66	FSR Consulting LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$363,863	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
67	Showa Chemical Industry Co.,Ltd. Top agencies Navy (Department of the Navy)	$347,437	0.1%	Rank history: not on the FY2021 list, #55 in FY2023, #62 in FY2024 and #55 in FY2025; new.
68	UGI Corporation 2 awardees, including Amerigas Propane, L.P. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$338,968	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 182 since FY2021.
69	808 Solutions Inc. Top agencies Navy (Department of the Navy) USDA (Department of Agriculture) Army (Department of the Army)	$338,727	0.1%	Rank history: not on the FY2021 list, #65 in FY2023, not on the FY2024 list and #57 in FY2025; up 68 since FY2021.
70	Phoenix V LLC Top agencies Army (Department of the Army)	$320,402	0.1%	Rank history: #72 in FY2021, #80 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2021.
71	Gallup Welders Supply Inc. Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior)	$311,552	0.1%	Rank history: #93 in FY2021, #88 in FY2023, #97 in FY2024 and not on the FY2025 list; up 22 since FY2021.
72	Water & Energy Systems Technology, Inc. Top agencies USAF (Department of the Air Force)	$309,219	0.1%	Rank history: not on the FY2021 list, #68 in FY2023, #78 in FY2024 and not on the FY2025 list; new.
73	Robbins Metal Fab LLC Top agencies Navy (Department of the Navy)	$300,061	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 146 since FY2021.
74	EL Dorado Chemical Company Top agencies Navy (Department of the Navy)	$296,415	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
75	Haun Welding Supply Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) VA (Department of Veterans Affairs)	$293,929	0.1%	Rank history: #80 in FY2021, not on the FY2023–FY2024 lists and #85 in FY2025; up 5 since FY2021.
76	Strandmoellen GMBH & Co. KG Top agencies Army (Department of the Army)	$293,188	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
77	Arc3 Gases, Inc. 4 awardees, including Arcet Equipment Co Top agencies DOJ (Department of Justice) Navy (Department of the Navy) DHS (Department of Homeland Security)	$293,021	0.1%	Rank history: #70 in FY2021, #85 in FY2023, #92 in FY2024 and #94 in FY2025; down 7 since FY2021.
78	BSE Performance, LLC Top agencies DOI (Department of the Interior) DLA (Defense Logistics Agency) Army (Department of the Army)	$292,218	0.1%	Rank history: not on the FY2021 list, #90 in FY2023, #89 in FY2024 and not on the FY2025 list; up 33 since FY2021.
79	Federal Resources Supply Company Top agencies DLA (Defense Logistics Agency)	$284,582	0.1%	Rank history: #75 in FY2021, #86 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2021.
80	Cambridge Isotope Laboratories Inc. Top agencies HHS (Department of Health and Human Services)	$280,963	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 217 since FY2021.
81	Chem-Trade International Inc. Top agencies Navy (Department of the Navy)	$280,933	0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #98 in FY2025; new.
82	Haun Specialty Gases, Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$280,348	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 24 since FY2021.
83	Cayman Chemical Co Inc. Top agencies DOJ (Department of Justice) HHS (Department of Health and Human Services) Army (Department of the Army)	$277,516	0.1%	Rank history: #59 in FY2021, #77 in FY2023, #91 in FY2024 and not on the FY2025 list; down 24 since FY2021.
84	Seokang Art System Top agencies USAF (Department of the Air Force)	$277,160	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
85	Dynasty Chemical Corp Top agencies Army (Department of the Army)	$276,115	0.1%	Rank history: not on the FY2021 list, #49 in FY2023 and not on the FY2024–FY2025 lists; up 41 since FY2021.
86	Premier & Companies, Inc. Top agencies DLA (Defense Logistics Agency)	$266,711	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
87	Eckert & Ziegler Strahlen- UND Medizintechnik AG 2 awardees, including Eckert & Ziegler Analytics, Inc. and Eckert & Ziegler Isotope Products, Inc. Top agencies DTRA (Defense Threat Reduction Agency) DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$263,662	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 49 since FY2021.
88	Wayne State University Top agencies Navy (Department of the Navy)	$260,886	0.1%	Rank history: #85 in FY2021 and not on the FY2023–FY2025 lists; down 3 since FY2021.
89	Veteran Chemicals, Inc. Top agencies Commerce (Department of Commerce) Army (Department of the Army)	$259,660	0.1%	Rank history: #90 in FY2021 and not on the FY2023–FY2025 lists; up 1 since FY2021.
90	Royal Media Network, Inc. Top agencies Army (Department of the Army)	$255,150	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
91	Electronic Fluorocarbons, LLC Top agencies NASA (National Aeronautics and Space Administration)	$249,915	0.1%	Rank history: not on the FY2021 list, #98 in FY2023 and not on the FY2024–FY2025 lists; new.
92	Hill Brothers Chemical Company Top agencies DOI (Department of the Interior)	$249,307	0.1%	Rank history: #65 in FY2021, #64 in FY2023, #99 in FY2024 and #71 in FY2025; down 27 since FY2021.
93	TMG Gases, Inc. Top agencies Commerce (Department of Commerce) USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$246,494	0.1%	Rank history: #30 in FY2021, #60 in FY2023 and not on the FY2024–FY2025 lists; down 63 since FY2021.
94	The Sherwin-Williams Company 2 awardees Top agencies Navy (Department of the Navy)	$243,583	0.1%	Rank history: #55 in FY2021 and not on the FY2023–FY2025 lists; down 39 since FY2021.
95	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$233,346	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 298 since FY2021.
96	General Distributing Co Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$233,199	0.1%	Rank history: #94 in FY2021 and not on the FY2023–FY2025 lists; down 2 since FY2021.
97	Expert Depot S.R.L. Top agencies Navy (Department of the Navy)	$229,212	0.1%	Rank history: #49 in FY2021, #87 in FY2023, #82 in FY2024 and not on the FY2025 list; down 48 since FY2021.
98	Mcgas, L.L.C. Top agencies DOI (Department of the Interior)	$226,674	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 15 since FY2021.
99	Capitol Carbonic Corp Top agencies HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$224,121	0.1%	Rank history: #84 in FY2021 and not on the FY2023–FY2025 lists; down 15 since FY2021.
100	S4 Water Sales and Service, LLC Top agencies DOS (Department of State)	$219,571	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.

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100 of 493 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 3251

Code	Net obligations	Largest contractor
32512 Industrial Gas Manufacturing	$216,238,674	Air Products and Chemicals, Inc.
32518 Other Basic Inorganic Chemical Manufacturing	$177,931,678	Mid-America Conversion Services, LLC
32519 Other Basic Organic Chemical Manufacturing	$17,695,464	3M Company
32511 Petrochemical Manufacturing	$1,084,089	PPG Industries, Inc.

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 $447 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 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 NAICS 3251 contractors in FY2022?

1. Mid-America Conversion Services, LLC ($117M), 2. Air Products and Chemicals, Inc. ($63.6M), 3. Praxair Distribution Inc. ($30.5M), 4. BWX Technologies, Inc. ($26.1M), 5. CF Industries Holdings Inc. ($25.4M), 6. Airgas Inc. ($20.4M), 7. Linde LLC ($15.7M), 8. Calca Solutions, LLC ($9.9M), 9. RAS Enterprises LLC ($9.76M), 10. Matheson TRI-Gas Inc. ($7.01M).

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