Top 100 Contractors in PSC 6830: Gases: Compressed and Liquefied, FY2021

Name: Top 100 Contractors in PSC 6830: Gases: Compressed and Liquefied, FY2021
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2020 – Sep 30, 2021 Code page on GovTribe

The top 10 won 46% of FY2021 PSC 6830 contract dollars

Contract obligations: $84,520,549 Net of deobligations, by contracts coded PSC 6830
Contractors: 247 Parent companies with an obligation
Largest contractor: Hudson Technologies, Inc. $10.1 million, 10.1% 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	Hudson Technologies, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency)	$10,090,964	10.1%	Rank history: #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since FY2020.
2	RAS Enterprises LLC Top agencies VA (Department of Veterans Affairs) DOE (Department of Energy) DOJ (Department of Justice)	$8,303,939	8.3%	Rank history: #3 in FY2022, #5 in FY2023, #7 in FY2024 and #8 in FY2025; up 1 since FY2020.
3	Airgas Inc. 15 awardees, including Airgas Usa, LLC, Air Liquide America L.P. and Air Liquide Industrial U.s. LP Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) Navy (Department of the Navy)	$7,180,021	7.2%	Rank history: #2 in FY2022, #17 in FY2023, #42 in FY2024 and #53 in FY2025; down 1 since FY2020.
4	Exelon Corporation Through Constellation Newenergy - Gas Division, LLC Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) DOJ (Department of Justice)	$6,007,492	6.0%	Rank history: #26 in FY2022, #86 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.
5	Sage Energy Trading LLC Top agencies USAF (Department of the Air Force) DOJ (Department of Justice)	$3,057,795	3.1%	Rank history: #36 in FY2022 and not on the FY2023–FY2025 lists; up 4 since FY2020.
6	San Luis Butane Distributors Top agencies Army (Department of the Army) DOI (Department of the Interior) USAF (Department of the Air Force)	$2,639,275	2.6%	Rank history: #8 in FY2022, #6 in FY2023, #10 in FY2024 and #6 in FY2025; down 1 since FY2020.
7	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) Army (Department of the Army)	$2,552,329	2.6%	Rank history: #9 in FY2022, #19 in FY2023 and not on the FY2024–FY2025 lists; up 4 since FY2020.
8	UGI Corporation 4 awardees, including Amerigas Propane, L.P., UGI Energy Services, LLC and UGI Utilities Inc. Top agencies DOI (Department of the Interior) DOJ (Department of Justice) Army (Department of the Army)	$2,276,232	2.3%	Rank history: not on the FY2022 list, #67 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.
9	Centerpoint Energy Services Inc. Through Nextera Energy Services Gas, LLC Top agencies Army (Department of the Army)	$2,179,050	2.2%	Rank history: #4 in FY2022, #14 in FY2023, #13 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
10	Inchcape Shipping Services Dubai LLC Top agencies DLA (Defense Logistics Agency)	$1,896,507	1.9%	Rank history: #22 in FY2022, #28 in FY2023, #20 in FY2024 and #29 in FY2025; up 6 since FY2020.
11	Green Lantern, LLC Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$1,881,326	1.9%	Rank history: #16 in FY2022, #25 in FY2023, #26 in FY2024 and #25 in FY2025; up 6 since FY2020.
12	Global Gases Group FZE Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$1,865,167	1.9%	Rank history: #30 in FY2022, #31 in FY2023, not on the FY2024 list and #30 in FY2025; up 54 since FY2020.
13	Praxair Distribution Inc. 11 awardees, including Linde Gas & Equipment Inc., Linde Gas Espana, S.A. and Linde Hellas Single Person Ltd Top agencies DLA (Defense Logistics Agency) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$1,745,545	1.8%	Rank history: #17 in FY2022, #13 in FY2023, #21 in FY2024 and not on the FY2025 list; up 22 since FY2020.
14	Centrica PLC Through NRG Business Marketing LLC Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) VA (Department of Veterans Affairs)	$1,663,644	1.7%	Rank history: #76 in FY2022, #11 in FY2023, #8 in FY2024 and not on the FY2025 list; up 26 since FY2020.
15	Merrimac Petroleum, Inc. Top agencies DOI (Department of the Interior) Navy (Department of the Navy) Army (Department of the Army)	$1,426,814	1.4%	Rank history: #19 in FY2022, #8 in FY2023, #30 in FY2024 and #47 in FY2025; up 19 since FY2020.
16	Enspire Energy, LLC Top agencies DLA (Defense Logistics Agency)	$1,297,539	1.3%	Rank history: not on the FY2022–FY2025 lists; down 8 since FY2020.
17	Linde LLC 2 awardees, including Messer LLC and Messer Gas Puerto Rico Inc. Top agencies Treasury (Department of the Treasury) DLA (Defense Logistics Agency) DMEA (Defense Microelectronics Activity)	$1,290,027	1.3%	Rank history: #12 in FY2022, #20 in FY2023, #25 in FY2024 and #32 in FY2025; up 19 since FY2020.
18	WGL Energy Services Inc. Top agencies DLA (Defense Logistics Agency)	$1,223,117	1.2%	Rank history: not on the FY2022 list, #18 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2020.
19	ROY Smith Company Top agencies Army (Department of the Army)	$1,144,163	1.1%	Rank history: not on the FY2022 list, #23 in FY2023, #24 in FY2024 and #31 in FY2025; unchanged since FY2020.
20	Goodrich Gas Inc. Top agencies Army (Department of the Army)	$1,137,056	1.1%	Rank history: #18 in FY2022, #22 in FY2023, #31 in FY2024 and #36 in FY2025; up 11 since FY2020.
21	Roberts Oxygen Co Inc. Top agencies HHS (Department of Health and Human Services) EPA (Environmental Protection Agency) DHS (Department of Homeland Security)	$949,224	1.0%	Rank history: #27 in FY2022, #26 in FY2023, #18 in FY2024 and #16 in FY2025; up 3 since FY2020.
22	The Gas Company, LLC Top agencies Navy (Department of the Navy)	$833,531	0.8%	Rank history: #23 in FY2022, #21 in FY2023, #39 in FY2024 and not on the FY2025 list; down 8 since FY2020.
23	R & M Government Services Inc. Top agencies Army (Department of the Army) VA (Department of Veterans Affairs)	$827,650	0.8%	Rank history: #42 in FY2022, not on the FY2023 list, #59 in FY2024 and #77 in FY2025; down 1 since FY2020.
24	Marianas Gas Corp Top agencies DHA (Defense Health Agency) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$784,503	0.8%	Rank history: not on the FY2022 list, #39 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2020.
25	Air Products and Chemicals, Inc. Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs) DHS (Department of Homeland Security)	$766,561	0.8%	Rank history: #10 in FY2022, #9 in FY2023, #15 in FY2024 and #12 in FY2025; down 10 since FY2020.
26	Rotech Healthcare Inc. Top agencies VA (Department of Veterans Affairs)	$753,033	0.8%	Rank history: #33 in FY2022 and not on the FY2023–FY2025 lists; down 22 since FY2020.
27	RCG of North Carolina, LLC Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture) Navy (Department of the Navy)	$720,112	0.7%	Rank history: #14 in FY2022, #7 in FY2023, #5 in FY2024 and #13 in FY2025; up 23 since FY2020.
28	Colonial Group Inc. Through Colonial Energy Inc. Top agencies DLA (Defense Logistics Agency)	$657,167	0.7%	Rank history: not on the FY2022–FY2025 lists; down 10 since FY2020.
29	Honeywell International Inc. Through BW Technologies Ltd Top agencies DHS (Department of Homeland Security)	$654,236	0.7%	Rank history: not on the FY2022–FY2025 lists; unchanged since FY2020.
30	S.j. Smith Co., Inc. Top agencies Army (Department of the Army)	$639,475	0.6%	Rank history: #63 in FY2022, #41 in FY2023 and not on the FY2024–FY2025 lists; down 9 since FY2020.
31	TMG Gases, Inc. Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) Commerce (Department of Commerce)	$612,929	0.6%	Rank history: #50 in FY2022, #43 in FY2023 and not on the FY2024–FY2025 lists; up 12 since FY2020.
32	Tauber Oil Company Through Interconn Resources LLC Top agencies VA (Department of Veterans Affairs) NASA (National Aeronautics and Space Administration)	$610,274	0.6%	Rank history: not on the FY2022 list, #53 in FY2023, #47 in FY2024 and not on the FY2025 list; up 32 since FY2020.
33	Austin R Harris Top agencies DOI (Department of the Interior)	$598,965	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
34	NRG Energy, Inc. Through NRG Business Marketing LLC Top agencies DOJ (Department of Justice) Army (Department of the Army)	$532,084	0.5%	Rank history: #7 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
35	Capitol Carbonic Corp Top agencies HHS (Department of Health and Human Services)	$495,622	0.5%	Rank history: #29 in FY2022, not on the FY2023 list, #22 in FY2024 and #22 in FY2025; up 54 since FY2020.
36	North American Refrigerants Inc. Top agencies NASA (National Aeronautics and Space Administration)	$494,400	0.5%	Rank history: not on the FY2022 list, #46 in FY2023, #23 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
37	Suburban Propane Partners, L.P 2 awardees Top agencies DOI (Department of the Interior) DLA (Defense Logistics Agency) Army (Department of the Army)	$478,407	0.5%	Rank history: #25 in FY2022, #44 in FY2023, not on the FY2024 list and #48 in FY2025; up 9 since FY2020.
38	Strategic Consulting Alliances, LLC Top agencies Army (Department of the Army)	$471,418	0.5%	Rank history: #66 in FY2022, #34 in FY2023, #29 in FY2024 and #45 in FY2025; new, not ranked in FY2020.
39	Cobb Electric Membership Corporation Through Gas South, LLC Top agencies NASA (National Aeronautics and Space Administration) VA (Department of Veterans Affairs)	$426,057	0.4%	Rank history: #11 in FY2022, #24 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
40	Diamond Geeks, Corp. Through Dgci Corporation Top agencies DLA (Defense Logistics Agency)	$411,680	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
41	BSE Performance, LLC Top agencies Army (Department of the Army) DOI (Department of the Interior) Navy (Department of the Navy)	$376,787	0.4%	Rank history: #34 in FY2022, #42 in FY2023, #44 in FY2024 and #86 in FY2025; down 8 since FY2020.
42	International Gas & Services Top agencies DLA (Defense Logistics Agency)	$376,049	0.4%	Rank history: #46 in FY2022, #47 in FY2023, #54 in FY2024 and #51 in FY2025; up 7 since FY2020.
43	Nexair LLC Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) DHA (Defense Health Agency)	$355,018	0.4%	Rank history: #44 in FY2022, #56 in FY2023, #55 in FY2024 and #49 in FY2025; up 26 since FY2020.
44	Federal Resources Supply Company Top agencies DLA (Defense Logistics Agency)	$344,360	0.3%	Rank history: #40 in FY2022, #37 in FY2023, #49 in FY2024 and #81 in FY2025; up 33 since FY2020.
45	Stratatech Corporation Through INO Therapeutics LLC Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$343,410	0.3%	Rank history: not on the FY2022 list, #96 in FY2023 and not on the FY2024–FY2025 lists; up 14 since FY2020.
46	Christopher I. Oyolokor SR. Top agencies Army (Department of the Army) Navy (Department of the Navy) DOI (Department of the Interior)	$333,723	0.3%	Rank history: #51 in FY2022, #40 in FY2023, #43 in FY2024 and #43 in FY2025; up 38 since FY2020.
47	Ferrellgas, L.P Top agencies Army (Department of the Army)	$300,000	0.3%	Rank history: not on the FY2022–FY2025 lists; up 53 since FY2020.
48	Norco Inc. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) Navy (Department of the Navy)	$241,606	0.2%	Rank history: not on the FY2022 list, #50 in FY2023, #52 in FY2024 and #61 in FY2025; up 14 since FY2020.
49	Airgas Usa, LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) Navy (Department of the Navy)	$236,928	0.2%	Rank history: #47 in FY2022, #4 in FY2023, #4 in FY2024 and #4 in FY2025; up 12 since FY2020.
50	Buzwair Industrial Gases Factories Top agencies USAF (Department of the Air Force)	$236,567	0.2%	Rank history: #67 in FY2022, #64 in FY2023, #65 in FY2024 and not on the FY2025 list; up 15 since FY2020.
51	Cryo-Express, LLC Top agencies Army (Department of the Army) HHS (Department of Health and Human Services)	$231,550	0.2%	Rank history: #49 in FY2022, #60 in FY2023 and not on the FY2024–FY2025 lists; down 19 since FY2020.
52	3M Company Through Scott Technologies, Inc. Top agencies DLA (Defense Logistics Agency)	$219,399	0.2%	Rank history: #82 in FY2022, #52 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
53	Arc3 Gases, Inc. 4 awardees, including Arcet Equipment Co Top agencies DOJ (Department of Justice) HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$215,448	0.2%	Rank history: #60 in FY2022, #62 in FY2023, #66 in FY2024 and #63 in FY2025; up 49 since FY2020.
54	Reagent World, Inc. Top agencies Navy (Department of the Navy)	$209,625	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
55	Ferrellgas Partners L.P. Through Ferrellgas, L.P Top agencies Navy (Department of the Navy) DOI (Department of the Interior) HHS (Department of Health and Human Services)	$197,185	0.2%	Rank history: #39 in FY2022, #61 in FY2023, #40 in FY2024 and not on the FY2025 list; up 3 since FY2020.
56	Earlbeck Corporation Top agencies DHS (Department of Homeland Security)	$182,349	0.2%	Rank history: #80 in FY2022, not on the FY2023–FY2024 lists and #78 in FY2025; up 24 since FY2020.
57	Reclamation Technologies Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$169,920	0.2%	Rank history: not on the FY2022–FY2025 lists; down 10 since FY2020.
58	Yorkshire Industries LLC Top agencies DLA (Defense Logistics Agency) DOI (Department of the Interior) Army (Department of the Army)	$168,879	0.2%	Rank history: #100 in FY2022, not on the FY2023 list, #95 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
59	Texas Ohio Energy Inc. Through High Desert Pipeline, Inc. Top agencies Army (Department of the Army)	$164,207	0.2%	Rank history: #31 in FY2022, #10 in FY2023, #11 in FY2024 and not on the FY2025 list; down 20 since FY2020.
60	Siemens Aktiengesellschaft Through Siemens Medical Solutions Usa, Inc. Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$155,418	0.2%	Rank history: #69 in FY2022 and not on the FY2023–FY2025 lists; up 39 since FY2020.
61	Naughton Energy Corp Top agencies DOI (Department of the Interior)	$149,099	0.1%	Rank history: not on the FY2022–FY2025 lists; up 127 since FY2020.
62	Focus Medical Gases LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$146,777	0.1%	Rank history: not on the FY2022–FY2025 lists; up 41 since FY2020.
63	Daiichi Kasei Sangyo Co.,Ltd. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$146,128	0.1%	Rank history: #93 in FY2022, #81 in FY2023, #81 in FY2024 and #94 in FY2025; up 32 since FY2020.
64	BBA Aviation PLC Through Epic Aviation, LLC Top agencies DOT (Department of Transportation)	$141,000	0.1%	Rank history: #62 in FY2022, #70 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
65	Haun Welding Supply Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$140,244	0.1%	Rank history: #54 in FY2022, not on the FY2023 list, #85 in FY2024 and #50 in FY2025; up 23 since FY2020.
66	Mcgas, L.L.C. Top agencies DOI (Department of the Interior)	$139,936	0.1%	Rank history: #59 in FY2022, #77 in FY2023, #79 in FY2024 and not on the FY2025 list; up 61 since FY2020.
67	Medical Equipment & Supplies of America LLC Top agencies VA (Department of Veterans Affairs) Commerce (Department of Commerce)	$138,785	0.1%	Rank history: #37 in FY2022, #32 in FY2023, #34 in FY2024 and #26 in FY2025; up 3 since FY2020.
68	Wanklyn Oil Co. Inc. Top agencies Army (Department of the Army)	$136,442	0.1%	Rank history: not on the FY2022 list, #73 in FY2023, #96 in FY2024 and not on the FY2025 list; up 41 since FY2020.
69	3T Federal Solutions LLC Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) Commerce (Department of Commerce)	$135,979	0.1%	Rank history: #85 in FY2022 and not on the FY2023–FY2025 lists; up 44 since FY2020.
70	Paula F Price Enterprises LLC Top agencies Army (Department of the Army)	$135,789	0.1%	Rank history: #5 in FY2022, #12 in FY2023, #12 in FY2024 and #14 in FY2025; down 26 since FY2020.
71	Nations Gas Technologies Inc. Top agencies HHS (Department of Health and Human Services)	$133,917	0.1%	Rank history: not on the FY2022–FY2025 lists; up 3 since FY2020.
72	Air Korea Ind. Co., Ltd Top agencies USAF (Department of the Air Force)	$133,054	0.1%	Rank history: not on the FY2022–FY2025 lists; up 19 since FY2020.
73	Coastal Energy, Inc. Top agencies USAF (Department of the Air Force)	$129,599	0.1%	Rank history: #41 in FY2022, not on the FY2023 list, #60 in FY2024 and #38 in FY2025; up 37 since FY2020.
74	Okano, K.K. Top agencies DLA (Defense Logistics Agency) DHA (Defense Health Agency)	$128,720	0.1%	Rank history: #83 in FY2022, #57 in FY2023, #48 in FY2024 and #58 in FY2025; down 19 since FY2020.
75	Stripes Global, Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) Navy (Department of the Navy)	$127,812	0.1%	Rank history: #35 in FY2022, #55 in FY2023, #46 in FY2024 and not on the FY2025 list; down 23 since FY2020.
76	Story Distributing Company Top agencies DOI (Department of the Interior)	$125,328	0.1%	Rank history: not on the FY2022–FY2025 lists; down 28 since FY2020.
77	Red River Resources LLC Top agencies DOI (Department of the Interior)	$117,057	0.1%	Rank history: #28 in FY2022, #45 in FY2023 and not on the FY2024–FY2025 lists; down 24 since FY2020.
78	808 Solutions Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$110,940	0.1%	Rank history: #48 in FY2022, #51 in FY2023, #73 in FY2024 and #44 in FY2025; new, not ranked in FY2020.
79	Innovative Federal Operations Group, Incorporated Top agencies Army (Department of the Army) DOI (Department of the Interior)	$108,307	0.1%	Rank history: #65 in FY2022, #54 in FY2023, #45 in FY2024 and #46 in FY2025; down 3 since FY2020.
80	Linde Gas & Equipment Inc. Top agencies VA (Department of Veterans Affairs) EPA (Environmental Protection Agency) Army (Department of the Army)	$106,801	0.1%	Rank history: not on the FY2022–FY2023 lists, #37 in FY2024 and #40 in FY2025; down 53 since FY2020.
81	Gallup Welders Supply Inc. Top agencies HHS (Department of Health and Human Services)	$106,021	0.1%	Rank history: #71 in FY2022, #94 in FY2023, #84 in FY2024 and #70 in FY2025; down 25 since FY2020.
82	The Blossman Companies, Inc. Through Blossman Gas Inc. Top agencies Army (Department of the Army)	$105,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
83	AMG Company, Inc. Top agencies DOI (Department of the Interior)	$103,200	0.1%	Rank history: #77 in FY2022, #69 in FY2023, #90 in FY2024 and #71 in FY2025; new, not ranked in FY2020.
84	National Fuel Gas Company Through National Fuel Gas Distribution Corp Top agencies DOJ (Department of Justice)	$101,567	0.1%	Rank history: #89 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
85	Central Welding Supply Company Top agencies Navy (Department of the Navy) EPA (Environmental Protection Agency)	$99,238	0.1%	Rank history: #75 in FY2022 and not on the FY2023–FY2025 lists; up 93 since FY2020.
86	Gallup Lumber & Supply Co Inc. Top agencies HHS (Department of Health and Human Services)	$95,365	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
87	Indiana Oxygen Company Inc. Top agencies Navy (Department of the Navy)	$94,230	0.1%	Rank history: not on the FY2022 list, #99 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2020.
88	UGI Energy Services, LLC Top agencies Army (Department of the Army)	$91,250	0.1%	Rank history: not on the FY2022–FY2025 lists; down 51 since FY2020.
89	Taylor Gas Co Inc. Top agencies Navy (Department of the Navy)	$86,000	0.1%	Rank history: #79 in FY2022 and not on the FY2023–FY2025 lists; up 50 since FY2020.
90	Mescalero Gas Company Top agencies DOI (Department of the Interior)	$84,469	0.1%	Rank history: not on the FY2022–FY2025 lists; up 81 since FY2020.
91	SDB Consultants, Ltd. Top agencies DLA (Defense Logistics Agency)	$82,613	0.1%	Rank history: not on the FY2022 list, #85 in FY2023 and not on the FY2024–FY2025 lists; up 29 since FY2020.
92	AGP LLC Top agencies EPA (Environmental Protection Agency) VA (Department of Veterans Affairs)	$80,850	0.1%	Rank history: #91 in FY2022 and not on the FY2023–FY2025 lists; up 15 since FY2020.
93	General Air Service & Supply Co. Top agencies Army (Department of the Army) USDA (Department of Agriculture) USAF (Department of the Air Force)	$79,522	0.1%	Rank history: #73 in FY2022, #63 in FY2023, #93 in FY2024 and #83 in FY2025; new, not ranked in FY2020.
94	Blackburn's Propane, Inc. Top agencies DOI (Department of the Interior)	$77,716	0.1%	Rank history: not on the FY2022–FY2025 lists; up 57 since FY2020.
95	Fujimura Shoten, KK Top agencies DLA (Defense Logistics Agency)	$75,556	0.1%	Rank history: #78 in FY2022 and not on the FY2023–FY2025 lists; down 1 since FY2020.
96	Keystone Propane Service, Inc. Top agencies Army (Department of the Army)	$75,000	0.1%	Rank history: #97 in FY2022 and not on the FY2023–FY2025 lists; up 35 since FY2020.
97	A & B Welding Supply LLC Top agencies VA (Department of Veterans Affairs)	$73,393	0.1%	Rank history: not on the FY2022–FY2025 lists; up 51 since FY2020.
98	TV Guy Orlando, LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) DECA (Defense Commissary Agency)	$72,201	0.1%	Rank history: not on the FY2022–FY2025 lists; up 100 since FY2020.
99	RJM Sales, Inc. Top agencies DHS (Department of Homeland Security)	$70,402	0.1%	Rank history: not on the FY2022–FY2025 lists; up 19 since FY2020.
100	Liquilux Gas Corp Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security)	$69,038	0.1%	Rank history: #98 in FY2022 and not on the FY2023–FY2025 lists; up 67 since FY2020.

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100 of 247 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 $99.6 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 2021 ran Oct 1, 2020 – Sep 30, 2021. 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 FY2020. "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 FY2020 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 6830 contractors in FY2021?

1. Hudson Technologies, Inc. ($10.1M), 2. RAS Enterprises LLC ($8.3M), 3. Airgas Inc. ($7.18M), 4. Exelon Corporation ($6.01M), 5. Sage Energy Trading LLC ($3.06M), 6. San Luis Butane Distributors ($2.64M), 7. Matheson TRI-Gas Inc. ($2.55M), 8. UGI Corporation ($2.28M), 9. Centerpoint Energy Services Inc. ($2.18M), 10. Inchcape Shipping Services Dubai LLC ($1.9M).

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