Top 100 Contractors in PSC 41: Refrigeration, Air Conditioning/Circulating Equipment, FY2025

Name: Top 100 Contractors in PSC 41: Refrigeration, Air Conditioning/Circulating Equipment, FY2025
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe

The top 10 won 58% of FY2025 PSC 41 contract dollars

Contract obligations: $541,005,278 Net of deobligations, by contracts coded PSC 41 or a code under it
Contractors: 914 Parent companies with an obligation
Largest contractor: Johnson Controls Federal Systems, LLC $135 million, 24.3% of obligations
Data as of: Oct 23, 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	Johnson Controls Federal Systems, LLC 2 awardees, including Johnson Controls Navy Systems, LLC and Johnson Controls Building Automation Systems, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) DOS (Department of State)	$135,422,064	24.3%	Rank history: not on the FY2021–FY2024 lists; new.
2	Simulation Technologies Inc Top agencies Army (Department of the Army)	$49,664,136	8.9%	Rank history: not on the FY2021–FY2024 lists; new.
3	Fairwinds Technologies LLC Top agencies Navy (Department of the Navy)	$35,129,744	6.3%	Rank history: not on the FY2021–FY2024 lists; new.
4	Kuog Corp Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$19,750,893	3.6%	Rank history: not on the FY2021 list, #7 in FY2022, #9 in FY2023 and #7 in FY2024; up 3 since FY2024.
5	STS International, Incorporated Top agencies Navy (Department of the Navy)	$19,719,502	3.5%	Rank history: not on the FY2021–FY2024 lists; new.
6	HDT Expeditionary Systems Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$15,210,024	2.7%	Rank history: not on the FY2021–FY2023 lists and #17 in FY2024; up 11 since FY2024.
7	Heico Corp 3 awardees, including Pioneer Industries, LLC, Sherwood Avionics and Accessories, Inc. and Seal Dynamics LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$13,202,448	2.4%	Rank history: not on the FY2021–FY2024 lists; new.
8	Hornet Acquisitionco LLC 3 awardees, including FM AF, LLC and Fairbanks Morse, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$11,500,712	2.1%	Rank history: not on the FY2021–FY2024 lists; new.
9	Leonardo S.p.A. 5 awardees, including Engineered Coil Company, DRS Naval Power Systems Inc. and Pivotal Power Inc. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security) Navy (Department of the Navy)	$11,235,878	2.0%	Rank history: #7 in FY2021, #11 in FY2022, #29 in FY2023 and #6 in FY2024; down 3 since FY2024.
10	Cam Management and Services, LLC Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$11,118,295	2.0%	Rank history: not on the FY2021–FY2023 lists and #21 in FY2024; up 11 since FY2024.
11	Honeywell International Inc. 4 awardees Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$9,536,026	1.7%	Rank history: #22 in FY2021, #14 in FY2022, #5 in FY2023 and #2 in FY2024; down 9 since FY2024.
12	Mainstream Engineering Corp Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$9,176,343	1.6%	Rank history: not on the FY2021 list, #28 in FY2022, not on the FY2023 list and #5 in FY2024; down 7 since FY2024.
13	Hansome Energy Systems Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$7,170,384	1.3%	Rank history: #27 in FY2021, #9 in FY2022, #3 in FY2023 and #3 in FY2024; down 10 since FY2024.
14	Howden North America Inc. 4 awardees Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$6,116,100	1.1%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2023 and #9 in FY2024; down 5 since FY2024.
15	Lone Star Blower, Inc. Top agencies USAF (Department of the Air Force)	$5,654,350	1.0%	Rank history: not on the FY2021–FY2024 lists; new.
16	Aero Precision Industries LLC Through Allclear Aerospace & Defense, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$4,964,359	0.9%	Rank history: #21 in FY2021, #37 in FY2022, #26 in FY2023 and #20 in FY2024; up 4 since FY2024.
17	Snowbird Technologies Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$4,945,013	0.9%	Rank history: not on the FY2021–FY2023 lists and #32 in FY2024; up 15 since FY2024.
18	Parker-Hannifin Corporation 2 awardees, including Meggitt Defense Systems, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$4,938,432	0.9%	Rank history: not on the FY2021–FY2023 lists and #64 in FY2024; up 46 since FY2024.
19	General Electric Company 2 awardees, including GE Aviation Systems LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$4,663,434	0.8%	Rank history: not on the FY2021–FY2024 lists; new.
20	Dynamic Air Engineering, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$4,496,587	0.8%	Rank history: #17 in FY2021, #62 in FY2022, #45 in FY2023 and #33 in FY2024; up 13 since FY2024.
21	Cospolich Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$4,096,200	0.7%	Rank history: #19 in FY2021, #17 in FY2022, #23 in FY2023 and #28 in FY2024; up 7 since FY2024.
22	Tyco Fire Products LP 3 awardees, including Johnson Controls, Inc., Johnson Controls Industries and Johnson Controls of Puerto Rico Inc. Top agencies USAF (Department of the Air Force) Commerce (Department of Commerce) WHS (DOD Washington Headquarters Service)	$3,994,276	0.7%	Rank history: not on the FY2021–FY2024 lists; up 82 since FY2024.
23	Kampi Components Co Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$3,943,748	0.7%	Rank history: #25 in FY2021, #23 in FY2022, #31 in FY2023 and #24 in FY2024; up 1 since FY2024.
24	Supplycore LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$3,752,705	0.7%	Rank history: not on the FY2021–FY2024 lists; new.
25	Aldevra LLC Top agencies VA (Department of Veterans Affairs) DECA (Defense Commissary Agency) DLA (Defense Logistics Agency)	$3,309,556	0.6%	Rank history: not on the FY2021–FY2022 lists, #49 in FY2023 and #50 in FY2024; up 25 since FY2024.
26	Accentz, Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security)	$3,110,681	0.6%	Rank history: #73 in FY2021, #35 in FY2022, #32 in FY2023 and #47 in FY2024; up 21 since FY2024.
27	Aantilia LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) DOI (Department of the Interior)	$2,844,205	0.5%	Rank history: not on the FY2021 list, #40 in FY2022, #71 in FY2023 and not on the FY2024 list; up 91 since FY2024.
28	Clayton Associates Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$2,781,307	0.5%	Rank history: #20 in FY2021, #57 in FY2022, #33 in FY2023 and #22 in FY2024; down 6 since FY2024.
29	L3Harris Technologies, Inc. 3 awardees, including L3Harris Maritime Power & Energy Solutions, Inc. and Trakka USA LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$2,536,983	0.5%	Rank history: #72 in FY2021 and not on the FY2022–FY2024 lists; up 271 since FY2024.
30	JAL Enterprises, Inc. Top agencies DLA (Defense Logistics Agency)	$2,166,719	0.4%	Rank history: #29 in FY2021, #18 in FY2022, #27 in FY2023 and #31 in FY2024; up 1 since FY2024.
31	Lockheed Martin Corporation 6 awardees, including Enflite LLC and Sikorsky Aircraft Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,071,010	0.4%	Rank history: not on the FY2021 list, #47 in FY2022, #17 in FY2023 and #26 in FY2024; down 5 since FY2024.
32	Ashland Electric Products Inc. Top agencies DLA (Defense Logistics Agency)	$1,887,807	0.3%	Rank history: #14 in FY2021, #21 in FY2022, #30 in FY2023 and #29 in FY2024; down 3 since FY2024.
33	Next Generation Logistics, LLC Top agencies Army (Department of the Army)	$1,883,080	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
34	ECI Defense Group, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency)	$1,769,394	0.3%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2023 and #30 in FY2024; down 4 since FY2024.
35	Ameritech Contracting LLC Top agencies VA (Department of Veterans Affairs)	$1,766,079	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
36	Trane U.s. Inc. Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs) DOJ (Department of Justice)	$1,713,029	0.3%	Rank history: #12 in FY2021, #10 in FY2022, #11 in FY2023 and #8 in FY2024; down 28 since FY2024.
37	AKS Industries Inc. Top agencies DLA (Defense Logistics Agency)	$1,709,284	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
38	S3 Aerodefense LLC Top agencies DLA (Defense Logistics Agency)	$1,700,200	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
39	Nova Facility Solutions Inc. Top agencies DOJ (Department of Justice)	$1,593,706	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
40	RTX Corporation 7 awardees, including Hamilton Sundstrand Corporation, Hornet Acquisitionco, LLC and Raytheon Company Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,583,405	0.3%	Rank history: #30 in FY2021, #13 in FY2022, #10 in FY2023 and #18 in FY2024; down 22 since FY2024.
41	Snodgrass Contracting LLC Top agencies HHS (Department of Health and Human Services)	$1,580,317	0.3%	Rank history: not on the FY2021 list, #36 in FY2022, #39 in FY2023 and #35 in FY2024; down 6 since FY2024.
42	Ronal Industries, Inc. Top agencies Army (Department of the Army)	$1,527,560	0.3%	Rank history: #38 in FY2021, #82 in FY2022, #56 in FY2023 and #27 in FY2024; down 15 since FY2024.
43	Quality Refrigeration Company, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$1,508,286	0.3%	Rank history: #34 in FY2021, #54 in FY2022, #84 in FY2023 and #54 in FY2024; up 11 since FY2024.
44	Advanced Cooling Technologies Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,431,112	0.3%	Rank history: not on the FY2021–FY2023 lists and #12 in FY2024; down 32 since FY2024.
45	Atlantic Diving Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$1,420,670	0.3%	Rank history: not on the FY2021–FY2023 lists and #68 in FY2024; up 23 since FY2024.
46	OST Services, LLC Top agencies VA (Department of Veterans Affairs)	$1,394,185	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
47	Windward Enterprises, LLC Top agencies DLA (Defense Logistics Agency)	$1,327,326	0.2%	Rank history: #31 in FY2021, #73 in FY2022, #61 in FY2023 and #60 in FY2024; up 13 since FY2024.
48	Lektron Inc. Top agencies Army (Department of the Army)	$1,317,584	0.2%	Rank history: #60 in FY2021, #29 in FY2022, #88 in FY2023 and #56 in FY2024; up 8 since FY2024.
49	Chesapeake Marine Refrigeration Corp Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$1,294,034	0.2%	Rank history: #64 in FY2021, #89 in FY2022, not on the FY2023 list and #23 in FY2024; down 26 since FY2024.
50	Janels Industries Inc. Top agencies DLA (Defense Logistics Agency)	$1,282,146	0.2%	Rank history: #18 in FY2021, #19 in FY2022, #18 in FY2023 and #40 in FY2024; down 10 since FY2024.
51	S I T Corporation Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security) Navy (Department of the Navy)	$1,270,194	0.2%	Rank history: #49 in FY2021, #75 in FY2022, not on the FY2023 list and #58 in FY2024; up 7 since FY2024.
52	Warfighter Focused Logistics Inc. Top agencies DLA (Defense Logistics Agency)	$1,176,786	0.2%	Rank history: not on the FY2021 list, #63 in FY2022, #59 in FY2023 and #82 in FY2024; up 30 since FY2024.
53	The Globe Equipment Company Inc Top agencies DLA (Defense Logistics Agency) DECA (Defense Commissary Agency) USAF (Department of the Air Force)	$1,137,316	0.2%	Rank history: not on the FY2021–FY2022 lists, #73 in FY2023 and not on the FY2024 list; up 50 since FY2024.
54	Aero International, LLC Top agencies DLA (Defense Logistics Agency)	$1,086,390	0.2%	Rank history: not on the FY2021–FY2023 lists and #77 in FY2024; up 23 since FY2024.
55	Kihomac Inc. Top agencies DLA (Defense Logistics Agency)	$1,080,528	0.2%	Rank history: not on the FY2021–FY2024 lists; up 98 since FY2024.
56	Meak Solutions Llc. Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security) Army (Department of the Army)	$1,012,904	0.2%	Rank history: not on the FY2021–FY2024 lists; up 52 since FY2024.
57	Aggreko LLC Top agencies Army (Department of the Army) VA (Department of Veterans Affairs)	$909,785	0.2%	Rank history: not on the FY2021–FY2024 lists; up 291 since FY2024.
58	Dela Technology Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$904,282	0.2%	Rank history: not on the FY2021 list, #56 in FY2022, #37 in FY2023 and #46 in FY2024; down 12 since FY2024.
59	Swain Enterprises LLC Top agencies VA (Department of Veterans Affairs)	$836,400	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
60	Government of the United States Through Federal Prison Industries, Inc. Top agencies Army (Department of the Army) DOI (Department of the Interior) VA (Department of Veterans Affairs)	$826,759	0.1%	Rank history: #47 in FY2021, not on the FY2022 list, #41 in FY2023 and #36 in FY2024; down 24 since FY2024.
61	Elevan LLC Top agencies USAF (Department of the Air Force)	$824,536	0.1%	Rank history: not on the FY2021 list, #68 in FY2022, not on the FY2023 list and #74 in FY2024; up 13 since FY2024.
62	Berkeley Building Company Top agencies Army (Department of the Army)	$815,804	0.1%	Rank history: #41 in FY2021, #31 in FY2022, not on the FY2023 list and #79 in FY2024; up 17 since FY2024.
63	Oshkosh Corporation Through Oshkosh Defense LLC Top agencies DLA (Defense Logistics Agency)	$804,887	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
64	Warrior Dynamics LLC Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs)	$792,599	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
65	J.G.B. Enterprises Inc. Through Echelon Supply and Service, Inc. Top agencies DLA (Defense Logistics Agency)	$764,471	0.1%	Rank history: not on the FY2021–FY2024 lists; up 136 since FY2024.
66	Four Points Technology, L.L.C. Top agencies VA (Department of Veterans Affairs)	$763,714	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
67	Super Vacuum Manufacturing Co., Inc. Top agencies Navy (Department of the Navy)	$747,734	0.1%	Rank history: #43 in FY2021, not on the FY2022–FY2023 lists and #71 in FY2024; up 4 since FY2024.
68	William A. Harrison, Inc. Top agencies DOT (Department of Transportation) Army (Department of the Army)	$727,892	0.1%	Rank history: not on the FY2021–FY2024 lists; up 284 since FY2024.
69	Technologisty LLC Top agencies USAF (Department of the Air Force) DOJ (Department of Justice)	$720,313	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
70	Portable Air Group LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) VA (Department of Veterans Affairs)	$713,953	0.1%	Rank history: #89 in FY2021, #64 in FY2022, #40 in FY2023 and #53 in FY2024; down 17 since FY2024.
71	Polar King International, Inc. Top agencies Navy (Department of the Navy) DOJ (Department of Justice) DOI (Department of the Interior)	$708,859	0.1%	Rank history: #39 in FY2021, not on the FY2022 list, #72 in FY2023 and #44 in FY2024; down 27 since FY2024.
72	CD & T Logistics Inc Top agencies DOT (Department of Transportation)	$695,933	0.1%	Rank history: not on the FY2021–FY2024 lists; up 105 since FY2024.
73	Am General LLC Top agencies DLA (Defense Logistics Agency)	$681,192	0.1%	Rank history: not on the FY2021–FY2024 lists; up 141 since FY2024.
74	Rural Route 2, LLC Top agencies Navy (Department of the Navy)	$645,042	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
75	GFS Supply & Services Company, Inc. Top agencies DOT (Department of Transportation) Navy (Department of the Navy)	$635,052	0.1%	Rank history: not on the FY2021–FY2024 lists; up 352 since FY2024.
76	Argo Turboserve Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$634,502	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
77	Apex Integrated Distribution Inc. Top agencies VA (Department of Veterans Affairs)	$633,020	0.1%	Rank history: not on the FY2021–FY2024 lists; up 250 since FY2024.
78	Great Lakes Sound & Vibration Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$627,238	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
79	R & M Government Services Inc. Top agencies DLA (Defense Logistics Agency)	$623,344	0.1%	Rank history: not on the FY2021–FY2023 lists and #88 in FY2024; up 9 since FY2024.
80	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency)	$619,121	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
81	Olgoonik General, LLC Top agencies HHS (Department of Health and Human Services)	$615,153	0.1%	Rank history: not on the FY2021–FY2024 lists; up 138 since FY2024.
82	American Air Filter Company Inc. 2 awardees, including Daikin Applied Americas Inc. Top agencies DOJ (Department of Justice) USAF (Department of the Air Force) DOS (Department of State)	$585,409	0.1%	Rank history: not on the FY2021–FY2022 lists, #77 in FY2023 and #63 in FY2024; down 19 since FY2024.
83	Lake Shore Systems Inc. Top agencies Navy (Department of the Navy)	$570,304	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
84	Sky Creative for Trading and Contracting Company Top agencies USAF (Department of the Air Force)	$566,538	0.1%	Rank history: #35 in FY2021 and not on the FY2022–FY2024 lists; returned.
85	Capp LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) DOJ (Department of Justice)	$561,841	0.1%	Rank history: not on the FY2021–FY2024 lists; up 62 since FY2024.
86	Monmouth Solutions, Inc. Top agencies Army (Department of the Army)	$558,527	0.1%	Rank history: not on the FY2021–FY2024 lists; up 199 since FY2024.
87	Christway Construction Company, LLC Top agencies USAF (Department of the Air Force)	$519,706	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
88	Indoff LLC Top agencies USAF (Department of the Air Force)	$519,204	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
89	Prime Mechanical of Wisconsin LLC Top agencies DOI (Department of the Interior)	$516,274	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
90	Professional Heating & Cooling, Inc. Top agencies Navy (Department of the Navy)	$504,575	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
91	Export 220Volt Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) DOS (Department of State)	$503,916	0.1%	Rank history: #88 in FY2021, #60 in FY2022, not on the FY2023 list and #66 in FY2024; down 25 since FY2024.
92	P.a.r. Products Co Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$501,675	0.1%	Rank history: #70 in FY2021 and not on the FY2022–FY2024 lists; returned.
93	Aviate Enterprises, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$499,908	0.1%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2023 and not on the FY2024 list; up 14 since FY2024.
94	Ruta Supplies Inc. Top agencies DLA (Defense Logistics Agency)	$491,003	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
95	Superior Equipment and Supply, Co. Top agencies DECA (Defense Commissary Agency) GSA (General Services Administration)	$488,187	0.1%	Rank history: not on the FY2021–FY2024 lists; up 311 since FY2024.
96	Arctic Slope Regional Corporation Through Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$477,742	0.1%	Rank history: not on the FY2021–FY2024 lists; up 6 since FY2024.
97	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$471,920	0.1%	Rank history: not on the FY2021–FY2024 lists; up 307 since FY2024.
98	Labrepco LLC 2 awardees, including VWR International LLC Top agencies DOI (Department of the Interior) DLA (Defense Logistics Agency) HHS (Department of Health and Human Services)	$464,469	0.1%	Rank history: not on the FY2021–FY2024 lists; up 17 since FY2024.
99	Transupport Inc. Top agencies DLA (Defense Logistics Agency)	$463,000	0.1%	Rank history: not on the FY2021–FY2023 lists and #73 in FY2024; down 26 since FY2024.
100	Astrea Group for Trading and Contracting Top agencies USAF (Department of the Air Force)	$456,043	0.1%	Rank history: #85 in FY2021, not on the FY2022 list, #90 in FY2023 and not on the FY2024 list; up 69 since FY2024.

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100 of 914 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC 41

Code	Net obligations	Largest contractor
4130 Refrigeration and Air Conditioning Components	$243,829,578	Johnson Controls Federal Systems, LLC
4120 Air Conditioning Equipment	$170,603,580	Simulation Technologies Inc
4140 Fans, Air Circulators, and Blower Equipment	$99,466,809	Hornet Acquisitionco LLC
4110 Refrigeration Equipment	$27,093,547	Aldevra LLC

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 $556 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.
Fiscal year 2025 ran Oct 1, 2024 – Sep 30, 2025. 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 FY2024. "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 FY2024 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 41 contractors in FY2025?

1. Johnson Controls Federal Systems, LLC ($135M), 2. Simulation Technologies Inc ($49.7M), 3. Fairwinds Technologies LLC ($35.1M), 4. Kuog Corp ($19.8M), 5. STS International, Incorporated ($19.7M), 6. HDT Expeditionary Systems Inc. ($15.2M), 7. Heico Corp ($13.2M), 8. Hornet Acquisitionco LLC ($11.5M), 9. Leonardo S.p.A. ($11.2M), 10. Cam Management and Services, LLC ($11.1M).

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