Top 66 Contractors in PSC 3655: Gas Generating and Dispensing Systems, Fixed or Mobile, Aug 2025–Jul 2026

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Linde Engineering North America LLC Top agencies NASA (National Aeronautics and Space Administration)	$24,482,000	43.9%	Rank history: not on the FY2021–FY2024 lists and #2 in FY2025; new, not ranked in Aug 2024–Jul 2025.
2	Treadwell Corporation (Delaware) Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$5,228,299	9.4%	Rank history: #6 in FY2021, #2 in FY2022, #3 in FY2023, #1 in FY2024 and #6 in FY2025; unchanged since Aug 2024–Jul 2025.
3	RTX Corporation 2 awardees, including Hamilton Sundstrand Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$4,158,088	7.5%	Rank history: #4 in FY2021, not on the FY2022 list, #7 in FY2023, #12 in FY2024 and #4 in FY2025; up 2 since Aug 2024–Jul 2025.
4	Greene Machine & Manufacturing Inc. Top agencies USAF (Department of the Air Force)	$4,111,650	7.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
5	Eaton Corporation Public Limited Company Through Mission Systems Davenport Inc. Top agencies Navy (Department of the Navy)	$3,188,591	5.7%	Rank history: not on the FY2021–FY2024 lists and #3 in FY2025; new, not ranked in Aug 2024–Jul 2025.
6	Chant Engineering Co Inc. Top agencies Navy (Department of the Navy)	$1,927,300	3.5%	Rank history: #16 in FY2021, #17 in FY2022, #14 in FY2023, not on the FY2024 list and #20 in FY2025; up 13 since Aug 2024–Jul 2025.
7	S & K Aerospace, LLC Top agencies USAF (Department of the Air Force)	$1,790,010	3.2%	Rank history: not on the FY2021 list, #1 in FY2022, not on the FY2023–FY2024 lists and #9 in FY2025; down 1 since Aug 2024–Jul 2025.
8	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency)	$1,349,057	2.4%	Rank history: #12 in FY2021, #19 in FY2022, not on the FY2023–FY2024 lists and #12 in FY2025; new, not ranked in Aug 2024–Jul 2025.
9	Atap Inc. Top agencies USAF (Department of the Air Force)	$1,242,362	2.2%	Rank history: not on the FY2021 list, #22 in FY2022, #4 in FY2023, #2 in FY2024 and #1 in FY2025; down 8 since Aug 2024–Jul 2025.
10	Atlantic Diving Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$1,227,231	2.2%	Rank history: not on the FY2021–FY2023 lists, #9 in FY2024 and #13 in FY2025; up 6 since Aug 2024–Jul 2025.
11	Boneal, Incorporated Top agencies USAF (Department of the Air Force)	$1,073,428	1.9%	Rank history: not on the FY2021–FY2022 lists, #33 in FY2023, not on the FY2024 list and #7 in FY2025; down 2 since Aug 2024–Jul 2025.
12	WGL Holdings Inc. Through WGL Energy Services, Inc. Top agencies DHS (Department of Homeland Security)	$1,026,100	1.8%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
13	CV International, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$921,659	1.7%	Rank history: #20 in FY2021, #20 in FY2022, #11 in FY2023, #15 in FY2024 and #27 in FY2025; up 11 since Aug 2024–Jul 2025.
14	On Site Gas Systems Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$368,575	0.7%	Rank history: not on the FY2021–FY2023 lists, #14 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
15	Essex Industries Inc. Top agencies DLA (Defense Logistics Agency)	$294,359	0.5%	Rank history: #2 in FY2021, #23 in FY2022, #19 in FY2023, #18 in FY2024 and #14 in FY2025; up 36 since Aug 2024–Jul 2025.
16	Chase Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$286,521	0.5%	Rank history: #13 in FY2021, #11 in FY2022, #8 in FY2023, #7 in FY2024 and #11 in FY2025; down 6 since Aug 2024–Jul 2025.
17	F3 Solutions LLC Through F3 Logistics LLC Top agencies USAF (Department of the Air Force)	$237,388	0.4%	Rank history: not on the FY2021–FY2024 lists and #8 in FY2025; new, not ranked in Aug 2024–Jul 2025.
18	Haun Welding Supply Inc. Top agencies Army (Department of the Army)	$218,900	0.4%	Rank history: not on the FY2021–FY2024 lists and #16 in FY2025; new, not ranked in Aug 2024–Jul 2025.
19	Jag Components, LLC Top agencies DLA (Defense Logistics Agency)	$154,392	0.3%	Rank history: not on the FY2021–FY2024 lists and #19 in FY2025; new, not ranked in Aug 2024–Jul 2025.
20	Airborne Outfitters LLC Top agencies DLA (Defense Logistics Agency)	$148,354	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
21	The Entwistle Company LLC Top agencies DLA (Defense Logistics Agency)	$140,554	0.3%	Rank history: not on the FY2021–FY2024 lists and #23 in FY2025; new, not ranked in Aug 2024–Jul 2025.
22	Pacific Consolidated Industries LLC Top agencies Navy (Department of the Navy)	$139,010	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
23	Bristol Bay Native Corporation Through SES Constructors LLC Top agencies Army (Department of the Army)	$134,065	0.2%	Rank history: not on the FY2021–FY2024 lists and #5 in FY2025; new, not ranked in Aug 2024–Jul 2025.
24	Proton Energy Systems Inc. Top agencies Army (Department of the Army)	$120,329	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
25	Lotususa, Inc. Top agencies Navy (Department of the Navy)	$104,518	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
26	Dickerson Petroleum Inc. Top agencies DOJ (Department of Justice)	$95,517	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
27	JBL System Solutions LLC Top agencies DLA (Defense Logistics Agency)	$90,324	0.2%	Rank history: not on the FY2021–FY2024 lists and #40 in FY2025; up 8 since Aug 2024–Jul 2025.
28	Cryo-Express LLC Through Cryo Associates Inc. Top agencies Navy (Department of the Navy)	$87,010	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
29	Rutherford & Titan, Inc. Top agencies Commerce (Department of Commerce) USAF (Department of the Air Force)	$85,699	0.2%	Rank history: not on the FY2021–FY2022 lists, #31 in FY2023, not on the FY2024 list and #24 in FY2025; new, not ranked in Aug 2024–Jul 2025.
30	United States Welding, Inc. Top agencies HHS (Department of Health and Human Services)	$83,337	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
31	Mcclain Innovations Incorporated Top agencies USAF (Department of the Air Force)	$82,705	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
32	Airborne Supply Inc. Top agencies DLA (Defense Logistics Agency)	$72,856	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
33	Stumptown Research & Development, LLC Top agencies Army (Department of the Army)	$67,216	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
34	Mecs, Inc. Top agencies Navy (Department of the Navy)	$61,940	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
35	Global Energy of the Carolinas LLC Top agencies DHS (Department of Homeland Security)	$61,365	0.1%	Rank history: not on the FY2021–FY2024 lists and #28 in FY2025; new, not ranked in Aug 2024–Jul 2025.
36	U.s. Airdrop, LLC Top agencies DLA (Defense Logistics Agency)	$60,000	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
37	Ciqima Federal Services LLC Top agencies USAF (Department of the Air Force)	$50,445	0.1%	Rank history: not on the FY2021–FY2024 lists and #31 in FY2025; new, not ranked in Aug 2024–Jul 2025.
38	Cornerstone Ondemand Inc. Through Semitorr Group, LLC Top agencies Army (Department of the Army)	$47,593	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
39	Empire Southwest, LLC Top agencies DOJ (Department of Justice)	$45,197	0.1%	Rank history: not on the FY2021–FY2024 lists and #32 in FY2025; new, not ranked in Aug 2024–Jul 2025.
40	2Lyons Aerospace LLC Top agencies DLA (Defense Logistics Agency)	$41,372	0.1%	Rank history: not on the FY2021–FY2023 lists, #25 in FY2024 and #22 in FY2025; down 19 since Aug 2024–Jul 2025.
41	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$40,950	0.1%	Rank history: not on the FY2021–FY2024 lists and #21 in FY2025; down 21 since Aug 2024–Jul 2025.
42	J.G.B. Enterprises Inc. Through Echelon Supply and Service, Inc. Top agencies DLA (Defense Logistics Agency)	$37,371	0.1%	Rank history: not on the FY2021–FY2023 lists, #41 in FY2024 and #62 in FY2025; up 15 since Aug 2024–Jul 2025.
43	Provision, Inc. Top agencies DLA (Defense Logistics Agency)	$36,035	0.1%	Rank history: #29 in FY2021, #21 in FY2022, #27 in FY2023, #22 in FY2024 and #48 in FY2025; down 4 since Aug 2024–Jul 2025.
44	Fed Crew Inc. Top agencies USAF (Department of the Air Force)	$32,480	0.1%	Rank history: not on the FY2021–FY2024 lists and #34 in FY2025; new, not ranked in Aug 2024–Jul 2025.
45	Cryofab Inc. Top agencies Navy (Department of the Navy)	$26,909	<0.1%	Rank history: not on the FY2021 list, #24 in FY2022, not on the FY2023–FY2024 lists and #47 in FY2025; new, not ranked in Aug 2024–Jul 2025.
46	Nations Gas Technologies Inc Top agencies DOI (Department of the Interior)	$18,811	<0.1%	Rank history: not on the FY2021–FY2024 lists and #43 in FY2025; new, not ranked in Aug 2024–Jul 2025.
47	WKF (Friedman) Enterprises, Inc. Top agencies DLA (Defense Logistics Agency)	$16,730	<0.1%	Rank history: not on the FY2021–FY2024 lists and #29 in FY2025; down 19 since Aug 2024–Jul 2025.
48	Oshkosh Corporation Through Oshkosh Defense LLC Top agencies DLA (Defense Logistics Agency)	$16,502	<0.1%	Rank history: not on the FY2021–FY2023 lists, #30 in FY2024 and #39 in FY2025; down 11 since Aug 2024–Jul 2025.
49	Heico Corp Through Pioneer Industries, LLC Top agencies Navy (Department of the Navy)	$16,320	<0.1%	Rank history: not on the FY2021–FY2024 lists and #18 in FY2025; new, not ranked in Aug 2024–Jul 2025.
50	Beta Fueling Systems, LLC Top agencies DLA (Defense Logistics Agency)	$15,898	<0.1%	Rank history: not on the FY2021–FY2024 lists and #53 in FY2025; down 1 since Aug 2024–Jul 2025.
51	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$14,535	<0.1%	Rank history: #53 in FY2021, #39 in FY2022, #43 in FY2023, #45 in FY2024 and #49 in FY2025; down 5 since Aug 2024–Jul 2025.
52	Aviarms Support Corp Top agencies DLA (Defense Logistics Agency)	$13,840	<0.1%	Rank history: #64 in FY2021, not on the FY2022 list, #49 in FY2023, not on the FY2024 list and #41 in FY2025; down 7 since Aug 2024–Jul 2025.
53	Native Instinct LLC Top agencies Navy (Department of the Navy)	$13,386	<0.1%	Rank history: not on the FY2021–FY2022 lists, #21 in FY2023, not on the FY2024 list and #44 in FY2025; new, not ranked in Aug 2024–Jul 2025.
54	The O.c. Lugo Co Inc. Top agencies DLA (Defense Logistics Agency)	$12,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #46 in FY2025; down 11 since Aug 2024–Jul 2025.
55	VC Displays, Inc. Top agencies DLA (Defense Logistics Agency)	$8,587	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
56	Dibert Valve and Fitting Company, Incorporated Top agencies DLA (Defense Logistics Agency)	$6,659	<0.1%	Rank history: not on the FY2021 list, #50 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
57	Pride Electronics Inc. Top agencies DLA (Defense Logistics Agency)	$5,699	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
58	S I T Corporation Top agencies DLA (Defense Logistics Agency)	$5,541	<0.1%	Rank history: #30 in FY2021, #55 in FY2022, #18 in FY2023, #38 in FY2024 and #56 in FY2025; down 6 since Aug 2024–Jul 2025.
59	HD Aero Support, Inc. Top agencies DLA (Defense Logistics Agency)	$5,096	<0.1%	Rank history: not on the FY2021–FY2024 lists and #54 in FY2025; new, not ranked in Aug 2024–Jul 2025.
60	Master Builders & Erectors Corp Top agencies DLA (Defense Logistics Agency)	$5,060	<0.1%	Rank history: not on the FY2021–FY2024 lists and #50 in FY2025; new, not ranked in Aug 2024–Jul 2025.
61	Equipment Parts Sales Top agencies DLA (Defense Logistics Agency)	$4,010	<0.1%	Rank history: not on the FY2021–FY2023 lists, #53 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
62	Hoosier Industrial Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$3,871	<0.1%	Rank history: #66 in FY2021, not on the FY2022–FY2024 lists and #57 in FY2025; new, not ranked in Aug 2024–Jul 2025.
63	Adirondack Electronics Inc. Top agencies Navy (Department of the Navy)	$3,135	<0.1%	Rank history: not on the FY2021 list, #63 in FY2022, not on the FY2023 list, #50 in FY2024 and #59 in FY2025; down 9 since Aug 2024–Jul 2025.
64	Sogen Company, Inc. Top agencies DLA (Defense Logistics Agency)	$2,264	<0.1%	Rank history: #63 in FY2021, #60 in FY2022, #46 in FY2023, #46 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
65	HC Services Inc. Top agencies DLA (Defense Logistics Agency)	$2,086	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
66	White Aero Inc. Top agencies DLA (Defense Logistics Agency)	$402	<0.1%	Rank history: not on the FY2021 list, #59 in FY2022, not on the FY2023–FY2024 lists and #63 in FY2025; new, not ranked in Aug 2024–Jul 2025.

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 $55.7 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. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. 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 Aug 2024–Jul 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