Top 100 Contractors in PSC 41: Refrigeration, Air Conditioning/Circulating Equipment, FY2024

Name: Top 100 Contractors in PSC 41: Refrigeration, Air Conditioning/Circulating Equipment, FY2024
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2023 – Sep 30, 2024 Code page on GovTribe

The top 10 won 42% of FY2024 PSC 41 contract dollars

Contract obligations: $351,377,392 Net of deobligations, by contracts coded PSC 41 or a code under it
Contractors: 1,050 Parent companies with an obligation
Largest contractor: Johnson Controls Navy Systems, LLC $48.5 million, 13.2% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Johnson Controls Navy Systems, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$48,511,192	13.2%	Rank history: not on the FY2021–FY2023 lists and #1 in FY2025; new.
2	Honeywell International Inc. 4 awardees Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$21,167,023	5.8%	Rank history: #22 in FY2021, #14 in FY2022, #5 in FY2023 and #11 in FY2025; up 3 since FY2023.
3	Hansome Energy Systems Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$19,230,186	5.2%	Rank history: #27 in FY2021, #9 in FY2022, #3 in FY2023 and #13 in FY2025; unchanged since FY2023.
4	Dgci Corporation Through Joint Venture Interconnection Cable LLC Top agencies Navy (Department of the Navy)	$12,050,712	3.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
5	Mainstream Engineering Corp Top agencies USAF (Department of the Air Force)	$11,210,137	3.1%	Rank history: not on the FY2021 list, #28 in FY2022, not on the FY2023 list and #12 in FY2025; up 144 since FY2023.
6	Leonardo S.p.A. 3 awardees, including Engineered Coil Company and DRS Naval Power Systems Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$11,151,770	3.0%	Rank history: #7 in FY2021, #11 in FY2022, #29 in FY2023 and #9 in FY2025; up 23 since FY2023.
7	Kuog Corp Top agencies USAF (Department of the Air Force)	$9,126,879	2.5%	Rank history: not on the FY2021 list, #7 in FY2022, #9 in FY2023 and #4 in FY2025; up 2 since FY2023.
8	Trane U.s. Inc. 2 awardees Top agencies USAF (Department of the Air Force) DOS (Department of State) VA (Department of Veterans Affairs)	$8,264,292	2.3%	Rank history: #12 in FY2021, #10 in FY2022, #11 in FY2023 and #37 in FY2025; up 3 since FY2023.
9	Howden North America Inc 2 awardees, including Howden American Fan Company Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$7,363,173	2.0%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2025; new.
10	Northrop Grumman Corporation 3 awardees, including Northrop Grumman Systems Corporation Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$7,257,317	2.0%	Rank history: #99 in FY2021, #27 in FY2022, not on the FY2023 list and not on the FY2025 list; up 482 since FY2023.
11	Amerind BG JV, LLC Top agencies HHS (Department of Health and Human Services)	$6,895,000	1.9%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
12	Advanced Cooling Technologies Inc. Top agencies NASA (National Aeronautics and Space Administration)	$6,172,820	1.7%	Rank history: not on the FY2021–FY2023 lists and #45 in FY2025; up 182 since FY2023.
13	Science and Engineering Services, LLC Top agencies USAF (Department of the Air Force)	$5,795,400	1.6%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
14	Johnson Controls Security Solutions LLC 3 awardees, including Johnson Controls Navy Systems, LLC and Ward Mechanical Equipment, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USDA (Department of Agriculture)	$5,078,787	1.4%	Rank history: #2 in FY2021, #3 in FY2022, #4 in FY2023 and not on the FY2025 list; down 10 since FY2023.
15	Howden USA Company Through Howden American Fan Company Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) Commerce (Department of Commerce)	$4,901,332	1.3%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2023 and #34 in FY2025; up 9 since FY2023.
16	Hunter Defense Technolog 2 awardees, including HDT Expeditionary Systems Inc. Top agencies Army (Department of the Army)	$3,887,468	1.1%	Rank history: #6 in FY2021, #1 in FY2022, #13 in FY2023 and not on the FY2025 list; down 3 since FY2023.
17	HDT Expeditionary Systems Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$3,616,898	1.0%	Rank history: not on the FY2021–FY2023 lists and #6 in FY2025; new.
18	RTX Corporation 12 awardees, including Hamilton Sundstrand Corporation, Raytheon Company and Hornet Acquisitionco, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) Army (Department of the Army)	$3,513,472	1.0%	Rank history: #30 in FY2021, #13 in FY2022, #10 in FY2023 and #41 in FY2025; down 8 since FY2023.
19	Atap Inc. Top agencies USAF (Department of the Air Force)	$3,056,506	0.8%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2023 and not on the FY2025 list; up 49 since FY2023.
20	Aero Precision Industries LLC Through Allclear Aerospace & Defense, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$3,031,750	0.8%	Rank history: #21 in FY2021, #37 in FY2022, #26 in FY2023 and not on the FY2025 list; up 6 since FY2023.
21	Cam Management and Services, LLC Top agencies USAF (Department of the Air Force)	$2,997,974	0.8%	Rank history: not on the FY2021–FY2023 lists and #10 in FY2025; new.
22	Clayton Associates Inc. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$2,845,133	0.8%	Rank history: #20 in FY2021, #57 in FY2022, #33 in FY2023 and #28 in FY2025; up 11 since FY2023.
23	Chesapeake Marine Refrigeration Corp Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$2,803,862	0.8%	Rank history: #64 in FY2021, #89 in FY2022, not on the FY2023 list and #50 in FY2025; up 112 since FY2023.
24	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,788,798	0.8%	Rank history: #25 in FY2021, #23 in FY2022, #31 in FY2023 and #21 in FY2025; up 7 since FY2023.
25	DRS Global Enterprise Solutions Inc Through Engineered Coil Company Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$2,767,243	0.8%	Rank history: not on the FY2021–FY2022 lists, #12 in FY2023 and not on the FY2025 list; down 13 since FY2023.
26	Lockheed Martin Corporation 8 awardees, including Enflite LLC and Sikorsky Aircraft Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,656,348	0.7%	Rank history: not on the FY2021 list, #47 in FY2022, #17 in FY2023 and #31 in FY2025; down 9 since FY2023.
27	Ronal Industries, Inc. Top agencies Army (Department of the Army)	$2,408,778	0.7%	Rank history: #38 in FY2021, #82 in FY2022, #56 in FY2023 and #43 in FY2025; up 29 since FY2023.
28	Cospolich Inc. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security) Navy (Department of the Navy)	$2,350,808	0.6%	Rank history: #19 in FY2021, #17 in FY2022, #23 in FY2023 and #20 in FY2025; down 5 since FY2023.
29	Ashland Electric Products Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,164,182	0.6%	Rank history: #14 in FY2021, #21 in FY2022, #30 in FY2023 and #32 in FY2025; up 1 since FY2023.
30	ECI Defense Group, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$2,129,644	0.6%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2023 and #35 in FY2025; up 56 since FY2023.
31	JAL Enterprises, Inc. Top agencies DLA (Defense Logistics Agency)	$1,897,187	0.5%	Rank history: #29 in FY2021, #18 in FY2022, #27 in FY2023 and #30 in FY2025; down 4 since FY2023.
32	Snowbird Technologies Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,895,904	0.5%	Rank history: not on the FY2021–FY2023 lists and #16 in FY2025; new.
33	Dynamic Air Engineering, Inc. Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$1,711,800	0.5%	Rank history: #17 in FY2021, #62 in FY2022, #45 in FY2023 and #18 in FY2025; up 12 since FY2023.
34	Allclear Aerospace & Defense, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,695,295	0.5%	Rank history: not on the FY2021–FY2023 lists and #15 in FY2025; new.
35	Snodgrass Contracting LLC Top agencies HHS (Department of Health and Human Services)	$1,684,008	0.5%	Rank history: not on the FY2021 list, #36 in FY2022, #39 in FY2023 and #42 in FY2025; up 4 since FY2023.
36	Government of the United States 2 awardees, including Federal Prison Industries, Inc. Top agencies Army (Department of the Army) Commerce (Department of Commerce) DOI (Department of the Interior)	$1,524,596	0.4%	Rank history: #47 in FY2021, not on the FY2022 list, #41 in FY2023 and #62 in FY2025; up 5 since FY2023.
37	PHC Corporation of North America Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) Commerce (Department of Commerce)	$1,425,253	0.4%	Rank history: not on the FY2021–FY2022 lists, #52 in FY2023 and not on the FY2025 list; up 15 since FY2023.
38	Parker-Hannifin Corp Top agencies DLA (Defense Logistics Agency)	$1,402,466	0.4%	Rank history: not on the FY2021–FY2023 lists and #53 in FY2025; new.
39	Tj&B Air Conditioning and Electric, LLC Top agencies DOT (Department of Transportation)	$1,369,150	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
40	Janels Industries Inc. Top agencies DLA (Defense Logistics Agency)	$1,367,272	0.4%	Rank history: #18 in FY2021, #19 in FY2022, #18 in FY2023 and #51 in FY2025; down 22 since FY2023.
41	Weathertrol Maintenance Corp Top agencies VA (Department of Veterans Affairs)	$1,353,999	0.4%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2023 and not on the FY2025 list; up 24 since FY2023.
42	Yulista Aerospace & Defense LLC Top agencies Navy (Department of the Navy)	$1,244,539	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
43	Sherwood Avionics and Accessories, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$1,240,811	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 235 since FY2023.
44	Polar King International, Inc. Top agencies USDA (Department of Agriculture) DOI (Department of the Interior) Commerce (Department of Commerce)	$1,235,187	0.3%	Rank history: #39 in FY2021, not on the FY2022 list, #72 in FY2023 and #73 in FY2025; up 28 since FY2023.
45	Bluefors Inc. Top agencies Commerce (Department of Commerce)	$1,184,519	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
46	Dela Technology Corporation Top agencies DLA (Defense Logistics Agency)	$1,173,031	0.3%	Rank history: not on the FY2021 list, #56 in FY2022, #37 in FY2023 and #60 in FY2025; down 9 since FY2023.
47	Accentz, Inc. Top agencies USAF (Department of the Air Force)	$1,172,912	0.3%	Rank history: #73 in FY2021, #35 in FY2022, #32 in FY2023 and #26 in FY2025; down 15 since FY2023.
48	Prts Global, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,150,561	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 206 since FY2023.
49	Pioneer Industries, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,123,864	0.3%	Rank history: #74 in FY2021, #49 in FY2022, #85 in FY2023 and #7 in FY2025; up 36 since FY2023.
50	Aldevra LLC Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) DOI (Department of the Interior)	$1,121,584	0.3%	Rank history: not on the FY2021–FY2022 lists, #49 in FY2023 and #25 in FY2025; down 1 since FY2023.
51	Ahtna Builders, LLC Top agencies Commerce (Department of Commerce)	$1,094,777	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
52	Industries for the Blind and Visually Impaired, Inc. Top agencies Navy (Department of the Navy)	$1,090,469	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
53	Portable Air Group LLC Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$1,054,975	0.3%	Rank history: #89 in FY2021, #64 in FY2022, #40 in FY2023 and #72 in FY2025; down 13 since FY2023.
54	Quality Refrigeration Company, Inc. 2 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$1,035,121	0.3%	Rank history: #34 in FY2021, #54 in FY2022, #84 in FY2023 and #44 in FY2025; up 30 since FY2023.
55	The Boeing Company 5 awardees Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,031,946	0.3%	Rank history: not on the FY2021 list, #93 in FY2022, not on the FY2023 list and not on the FY2025 list; up 85 since FY2023.
56	Lektron Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$1,020,850	0.3%	Rank history: #60 in FY2021, #29 in FY2022, #88 in FY2023 and #49 in FY2025; up 32 since FY2023.
57	CMP Commercial Construction Inc Top agencies DOT (Department of Transportation)	$979,952	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
58	S I T Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$966,809	0.3%	Rank history: #49 in FY2021, #75 in FY2022, not on the FY2023 list and #52 in FY2025; up 53 since FY2023.
59	Cate Equipment Company Top agencies USAF (Department of the Air Force)	$960,899	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
60	Windward Enterprises, LLC Top agencies DLA (Defense Logistics Agency)	$919,920	0.3%	Rank history: #31 in FY2021, #73 in FY2022, #61 in FY2023 and #48 in FY2025; up 1 since FY2023.
61	Fisher Scientific Company L.L.C. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) DOI (Department of the Interior)	$898,562	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
62	Statz Corp Top agencies DLA (Defense Logistics Agency)	$850,763	0.2%	Rank history: not on the FY2021–FY2022 lists, #75 in FY2023 and not on the FY2025 list; up 13 since FY2023.
63	Daikin Applied Americas Inc 2 awardees, including American Air Filter Co Inc. Top agencies USAF (Department of the Air Force) DOJ (Department of Justice) USDA (Department of Agriculture)	$832,501	0.2%	Rank history: not on the FY2021–FY2022 lists, #77 in FY2023 and #84 in FY2025; up 14 since FY2023.
64	Meggitt Aerospace Limited 2 awardees, including Meggitt Defense Systems, Inc. and Parker-Hannifin Corp Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$832,116	0.2%	Rank history: not on the FY2021–FY2023 lists and #24 in FY2025; new.
65	Flowsense, LLC Top agencies VA (Department of Veterans Affairs)	$820,629	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
66	Export 220Volt Inc. Top agencies USAF (Department of the Air Force) DOS (Department of State) GSA (General Services Administration)	$778,309	0.2%	Rank history: #88 in FY2021, #60 in FY2022, not on the FY2023 list and #93 in FY2025; up 144 since FY2023.
67	AKS Industries Inc. Top agencies DLA (Defense Logistics Agency)	$778,069	0.2%	Rank history: #51 in FY2021, #83 in FY2022, not on the FY2023 list and not on the FY2025 list; up 54 since FY2023.
68	Atlantic Diving Supply, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$748,373	0.2%	Rank history: not on the FY2021–FY2023 lists and #46 in FY2025; new.
69	S.t.s. - Servizi Tecnologie E Sviluppo S.R.L. Top agencies DECA (Defense Commissary Agency)	$741,514	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
70	Tyonek Native Corporatio Through Tfab Defense Systems LLC Top agencies Army (Department of the Army)	$739,495	0.2%	Rank history: #3 in FY2021, #32 in FY2022, #15 in FY2023 and not on the FY2025 list; down 55 since FY2023.
71	Super Vacuum Manufacturing Co., Inc. Top agencies Navy (Department of the Navy)	$738,000	0.2%	Rank history: #43 in FY2021, not on the FY2022–FY2023 lists and #69 in FY2025; returned.
72	Johnson Controls Building Automation Systems, LLC Top agencies Navy (Department of the Navy) DOS (Department of State)	$729,246	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
73	Transupport Inc. Top agencies DLA (Defense Logistics Agency)	$694,970	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 45 since FY2023.
74	Elevan LLC Top agencies USAF (Department of the Air Force)	$689,255	0.2%	Rank history: not on the FY2021 list, #68 in FY2022, not on the FY2023 list and #63 in FY2025; up 107 since FY2023.
75	Burhani Enterprises Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) DHS (Department of Homeland Security)	$688,254	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 138 since FY2023.
76	Sandlapper Controls, Inc. Top agencies USDA (Department of Agriculture)	$680,580	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 326 since FY2023.
77	Aero International, LLC Top agencies DLA (Defense Logistics Agency)	$666,994	0.2%	Rank history: not on the FY2021–FY2023 lists and #56 in FY2025; new.
78	Results Sales & Service, L.L.C. Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$662,628	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
79	Berkeley Building Company Top agencies Army (Department of the Army)	$660,000	0.2%	Rank history: #41 in FY2021, #31 in FY2022, not on the FY2023 list and #64 in FY2025; up 268 since FY2023.
80	E Corp Top agencies DOT (Department of Transportation)	$654,699	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
81	Phoenix Systems Engineering Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) DOJ (Department of Justice)	$639,230	0.2%	Rank history: #55 in FY2021, #43 in FY2022, #47 in FY2023 and not on the FY2025 list; down 34 since FY2023.
82	Warfighter Focused Logistics Inc. Top agencies DLA (Defense Logistics Agency)	$612,221	0.2%	Rank history: not on the FY2021 list, #63 in FY2022, #59 in FY2023 and #54 in FY2025; down 23 since FY2023.
83	Russ Equipment Co., Incorporated Top agencies DHS (Department of Homeland Security)	$569,171	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 56 since FY2023.
84	Government Scientific Source Inc. Top agencies DLA (Defense Logistics Agency) DOI (Department of the Interior) Navy (Department of the Navy)	$538,893	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 53 since FY2023.
85	TK Airport Solutions, Inc. Top agencies Navy (Department of the Navy)	$525,800	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
86	Government Sales, LLC Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy) USAF (Department of the Air Force)	$518,425	0.1%	Rank history: not on the FY2021 list, #52 in FY2022, not on the FY2023 list and not on the FY2025 list; up 21 since FY2023.
87	Borie-Davis Inc. Top agencies USAF (Department of the Air Force)	$516,400	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
88	R & M Government Services Inc. Top agencies DLA (Defense Logistics Agency)	$512,252	0.1%	Rank history: not on the FY2021–FY2023 lists and #81 in FY2025; up 110 since FY2023.
89	Mobile Fixture and Equipment Company, Inc. Top agencies DECA (Defense Commissary Agency) DLA (Defense Logistics Agency)	$505,782	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 67 since FY2023.
90	Gill Group, Inc. Top agencies VA (Department of Veterans Affairs) DOI (Department of the Interior) DECA (Defense Commissary Agency)	$482,499	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
91	Applied Cooling Technology, LLC Top agencies Navy (Department of the Navy)	$482,080	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
92	Wrigglesworth Enterprises Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$469,861	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 224 since FY2023.
93	Alpha TEC Services Inc. Top agencies DECA (Defense Commissary Agency)	$468,461	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 227 since FY2023.
94	Global Logistics Strategies Inc. Top agencies DLA (Defense Logistics Agency)	$456,557	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 12 since FY2023.
95	BP Construction JV LLC Top agencies VA (Department of Veterans Affairs)	$448,857	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 313 since FY2023.
96	Ray Blackman Enterprises, Inc. Top agencies DLA (Defense Logistics Agency)	$444,345	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 72 since FY2023.
97	Oxford Instruments America, Inc. Top agencies Commerce (Department of Commerce)	$441,406	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
98	Adrick Marine Group, Inc. Top agencies DHS (Department of Homeland Security)	$435,611	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
99	Reon Inc. Top agencies HHS (Department of Health and Human Services)	$421,221	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 14 since FY2023.
100	Martin Military Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$416,969	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 112 since FY2023.

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100 of 1,050 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC 41

Code	Net obligations	Largest contractor
4120 Air Conditioning Equipment	$122,502,160	Johnson Controls Navy Systems, LLC
4130 Refrigeration and Air Conditioning Components	$112,842,764	Johnson Controls Navy Systems, LLC
4140 Fans, Air Circulators, and Blower Equipment	$87,831,118	Hansome Energy Systems Inc.
4110 Refrigeration Equipment	$27,929,173	Leonardo S.p.A.

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 $367 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 2024 ran Oct 1, 2023 – Sep 30, 2024. 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 FY2023. "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 FY2023 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 FY2024?

1. Johnson Controls Navy Systems, LLC ($48.5M), 2. Honeywell International Inc. ($21.2M), 3. Hansome Energy Systems Inc. ($19.2M), 4. Dgci Corporation ($12.1M), 5. Mainstream Engineering Corp ($11.2M), 6. Leonardo S.p.A. ($11.2M), 7. Kuog Corp ($9.13M), 8. Trane U.s. Inc. ($8.26M), 9. Howden North America Inc ($7.36M), 10. Northrop Grumman Corporation ($7.26M).

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