Top 100 Contractors in PSC 41: Refrigeration, Air Conditioning/Circulating Equipment, Jul 2025–Jun 2026

Name: Top 100 Contractors in PSC 41: Refrigeration, Air Conditioning/Circulating Equipment, Jul 2025–Jun 2026
Creator: GovTribe

Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe

The top 10 won 58% of PSC 41 contract dollars from July 2025 through June 2026

Contract obligations: $607,649,584 Net of deobligations, by contracts coded PSC 41 or a code under it
Contractors: 871 Parent companies with an obligation
Largest contractor: Johnson Controls Navy Systems, LLC $174 million, 27.9% 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)	$173,636,061	27.9%	Rank history: not on the FY2021–FY2023 lists, #1 in FY2024 and #1 in FY2025; unchanged since Jul 2024–Jun 2025.
2	Simulation Technologies Inc Top agencies Army (Department of the Army)	$49,664,136	8.0%	Rank history: not on the FY2021–FY2024 lists and #2 in FY2025; new, not ranked in Jul 2024–Jun 2025.
3	Mainstream Engineering Corp Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$23,159,566	3.7%	Rank history: not on the FY2021 list, #28 in FY2022, not on the FY2023 list, #5 in FY2024 and #12 in FY2025; up 4 since Jul 2024–Jun 2025.
4	STS International, Incorporated Top agencies Navy (Department of the Navy)	$19,719,502	3.2%	Rank history: not on the FY2021–FY2024 lists and #5 in FY2025; new, not ranked in Jul 2024–Jun 2025.
5	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency)	$17,892,746	2.9%	Rank history: #74 in FY2021, #49 in FY2022, #85 in FY2023, #49 in FY2024 and #7 in FY2025; up 1 since Jul 2024–Jun 2025.
6	Atlantic Diving Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$17,293,177	2.8%	Rank history: not on the FY2021–FY2023 lists, #68 in FY2024 and #46 in FY2025; up 42 since Jul 2024–Jun 2025.
7	Honeywell International Inc. 3 awardees Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$16,619,072	2.7%	Rank history: #22 in FY2021, #14 in FY2022, #5 in FY2023, #2 in FY2024 and #11 in FY2025; up 2 since Jul 2024–Jun 2025.
8	Atap Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$13,923,241	2.2%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2023, #19 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
9	HDT Expeditionary Systems Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$13,682,967	2.2%	Rank history: not on the FY2021–FY2023 lists, #17 in FY2024 and #6 in FY2025; up 5 since Jul 2024–Jun 2025.
10	Leonardo S.p.A. 4 awardees, including Engineered Coil Company, Laurel Technologies Partnership and DRS Naval Power Systems Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$13,586,895	2.2%	Rank history: #7 in FY2021, #11 in FY2022, #29 in FY2023, #6 in FY2024 and #9 in FY2025; down 5 since Jul 2024–Jun 2025.
11	Ovc-Engineered Solutions LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$12,740,010	2.0%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
12	Grimes Aerospace Company Through Honeywell International Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$8,383,745	1.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
13	FM AF, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$8,254,672	1.3%	Rank history: not on the FY2021–FY2024 lists and #8 in FY2025; unchanged since Jul 2024–Jun 2025.
14	RTX Corporation 6 awardees, including Hamilton Sundstrand Corporation, Raytheon Company and Rockwell Collins, Inc. Top agencies DLA (Defense Logistics Agency)	$8,156,686	1.3%	Rank history: #30 in FY2021, #13 in FY2022, #10 in FY2023, #18 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
15	Allclear Aerospace & Defense, Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) USAF (Department of the Air Force)	$7,218,510	1.2%	Rank history: not on the FY2021–FY2023 lists, #34 in FY2024 and #15 in FY2025; up 1 since Jul 2024–Jun 2025.
16	Cam Management and Services, LLC Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$6,060,953	1.0%	Rank history: not on the FY2021–FY2023 lists, #21 in FY2024 and #10 in FY2025; down 8 since Jul 2024–Jun 2025.
17	W S Darley & Co Top agencies DLA (Defense Logistics Agency)	$5,974,624	1.0%	Rank history: not on the FY2021 list, #5 in FY2022, #6 in FY2023 and not on the FY2024–FY2025 lists; up 199 since Jul 2024–Jun 2025.
18	Cospolich Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$4,989,773	0.8%	Rank history: #19 in FY2021, #17 in FY2022, #23 in FY2023, #28 in FY2024 and #20 in FY2025; up 1 since Jul 2024–Jun 2025.
19	Snowbird Technologies Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$4,906,855	0.8%	Rank history: not on the FY2021–FY2023 lists, #32 in FY2024 and #16 in FY2025; down 2 since Jul 2024–Jun 2025.
20	Kampi Components Co Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$4,812,676	0.8%	Rank history: #25 in FY2021, #23 in FY2022, #31 in FY2023, #24 in FY2024 and #21 in FY2025; up 3 since Jul 2024–Jun 2025.
21	General Electric Company Through GE Aviation Systems LLC Top agencies Army (Department of the Army)	$4,607,096	0.7%	Rank history: not on the FY2021–FY2024 lists and #17 in FY2025; new, not ranked in Jul 2024–Jun 2025.
22	General Dynamics Corporation 2 awardees, including General Dynamics Land Systems Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$4,602,029	0.7%	Rank history: #61 in FY2021, #6 in FY2022, #2 in FY2023 and not on the FY2024–FY2025 lists; up 124 since Jul 2024–Jun 2025.
23	Aldevra LLC Top agencies VA (Department of Veterans Affairs) DECA (Defense Commissary Agency) DLA (Defense Logistics Agency)	$4,010,453	0.6%	Rank history: not on the FY2021–FY2022 lists, #49 in FY2023, #50 in FY2024 and #25 in FY2025; up 19 since Jul 2024–Jun 2025.
24	Supplycore LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$3,892,952	0.6%	Rank history: not on the FY2021–FY2024 lists and #23 in FY2025; new, not ranked in Jul 2024–Jun 2025.
25	Janels Industries Inc. Top agencies DLA (Defense Logistics Agency)	$3,703,155	0.6%	Rank history: #18 in FY2021, #19 in FY2022, #18 in FY2023, #40 in FY2024 and #51 in FY2025; up 8 since Jul 2024–Jun 2025.
26	Clayton Associates Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$3,469,614	0.6%	Rank history: #20 in FY2021, #57 in FY2022, #33 in FY2023, #22 in FY2024 and #28 in FY2025; down 5 since Jul 2024–Jun 2025.
27	Johnson Controls Inc 3 awardees, including Johnson Controls Industries and Johnson Controls Building Solutions, LLC Top agencies USAF (Department of the Air Force) HHS (Department of Health and Human Services) Commerce (Department of Commerce)	$2,744,817	0.4%	Rank history: not on the FY2021–FY2024 lists and #22 in FY2025; down 7 since Jul 2024–Jun 2025.
28	Aggreko LLC Top agencies Army (Department of the Army) VA (Department of Veterans Affairs)	$2,744,282	0.4%	Rank history: not on the FY2021–FY2024 lists and #59 in FY2025; up 95 since Jul 2024–Jun 2025.
29	Meggitt Aerospace Limited Through Meggitt Defense Systems, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$2,736,235	0.4%	Rank history: not on the FY2021–FY2023 lists, #64 in FY2024 and #24 in FY2025; up 20 since Jul 2024–Jun 2025.
30	Aantilia LLC Top agencies USAF (Department of the Air Force) DOI (Department of the Interior) DHS (Department of Homeland Security)	$2,672,297	0.4%	Rank history: not on the FY2021 list, #40 in FY2022, #71 in FY2023, not on the FY2024 list and #27 in FY2025; up 77 since Jul 2024–Jun 2025.
31	Parker-Hannifin Corp Top agencies DLA (Defense Logistics Agency)	$2,556,306	0.4%	Rank history: not on the FY2021–FY2023 lists, #38 in FY2024 and #53 in FY2025; up 9 since Jul 2024–Jun 2025.
32	Alvest (USA) Inc. Through TLD America Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$2,514,120	0.4%	Rank history: not on the FY2021–FY2025 lists; up 130 since Jul 2024–Jun 2025.
33	Trane U.s. Inc. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) USAF (Department of the Air Force)	$2,463,010	0.4%	Rank history: #12 in FY2021, #10 in FY2022, #11 in FY2023, #8 in FY2024 and #37 in FY2025; down 21 since Jul 2024–Jun 2025.
34	L3Harris Technologies, Inc. 2 awardees, including L3Harris Maritime Power & Energy Solutions, Inc. and IRF - Intelligent RF Solutions, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,386,104	0.4%	Rank history: #72 in FY2021, not on the FY2022–FY2024 lists and #29 in FY2025; up 201 since Jul 2024–Jun 2025.
35	Lockheed Martin Corporation 5 awardees, including Enflite LLC Top agencies DLA (Defense Logistics Agency)	$2,355,830	0.4%	Rank history: not on the FY2021 list, #47 in FY2022, #17 in FY2023, #26 in FY2024 and #31 in FY2025; down 6 since Jul 2024–Jun 2025.
36	Windward Enterprises, LLC Top agencies DLA (Defense Logistics Agency)	$2,279,287	0.4%	Rank history: #31 in FY2021, #73 in FY2022, #61 in FY2023, #60 in FY2024 and #48 in FY2025; up 15 since Jul 2024–Jun 2025.
37	JAL Enterprises, Inc. Top agencies DLA (Defense Logistics Agency)	$2,178,624	0.4%	Rank history: #29 in FY2021, #18 in FY2022, #27 in FY2023, #31 in FY2024 and #30 in FY2025; down 10 since Jul 2024–Jun 2025.
38	Ashland Electric Products Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,131,322	0.3%	Rank history: #14 in FY2021, #21 in FY2022, #30 in FY2023, #29 in FY2024 and #32 in FY2025; down 7 since Jul 2024–Jun 2025.
39	Lektron Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$2,084,753	0.3%	Rank history: #60 in FY2021, #29 in FY2022, #88 in FY2023, #56 in FY2024 and #49 in FY2025; up 30 since Jul 2024–Jun 2025.
40	ECI Defense Group, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency)	$2,055,338	0.3%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2023, #30 in FY2024 and #35 in FY2025; down 15 since Jul 2024–Jun 2025.
41	Chesapeake Marine Refrigeration Corp Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$1,967,779	0.3%	Rank history: #64 in FY2021, #89 in FY2022, not on the FY2023 list, #23 in FY2024 and #50 in FY2025; down 19 since Jul 2024–Jun 2025.
42	Culinary Depot Inc. Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs) Navy (Department of the Navy)	$1,873,615	0.3%	Rank history: not on the FY2021–FY2025 lists; up 80 since Jul 2024–Jun 2025.
43	Government of the United States Through Federal Prison Industries, Inc. Top agencies Army (Department of the Army) USDA (Department of Agriculture)	$1,840,564	0.3%	Rank history: #47 in FY2021, not on the FY2022 list, #41 in FY2023, #36 in FY2024 and #62 in FY2025; up 15 since Jul 2024–Jun 2025.
44	Dynamic Air Engineering, Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) USAF (Department of the Air Force)	$1,789,447	0.3%	Rank history: #17 in FY2021, #62 in FY2022, #45 in FY2023, #33 in FY2024 and #18 in FY2025; down 26 since Jul 2024–Jun 2025.
45	Ronal Industries, Inc. Top agencies Army (Department of the Army)	$1,698,821	0.3%	Rank history: #38 in FY2021, #82 in FY2022, #56 in FY2023, #27 in FY2024 and #43 in FY2025; down 19 since Jul 2024–Jun 2025.
46	Dela Technology Corporation Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) Navy (Department of the Navy)	$1,646,780	0.3%	Rank history: not on the FY2021 list, #56 in FY2022, #37 in FY2023, #46 in FY2024 and #60 in FY2025; up 29 since Jul 2024–Jun 2025.
47	United Rentals (North America), Inc. Top agencies Navy (Department of the Navy)	$1,645,070	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
48	Accentz, Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security)	$1,627,182	0.3%	Rank history: #73 in FY2021, #35 in FY2022, #32 in FY2023, #47 in FY2024 and #26 in FY2025; down 24 since Jul 2024–Jun 2025.
49	Acme Products & Engineering Inc. Top agencies Navy (Department of the Navy)	$1,506,975	0.2%	Rank history: not on the FY2021–FY2025 lists; up 176 since Jul 2024–Jun 2025.
50	Front Range Construction Inc. Top agencies DOS (Department of State) HHS (Department of Health and Human Services)	$1,423,647	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
51	OST Services, LLC Top agencies VA (Department of Veterans Affairs)	$1,394,185	0.2%	Rank history: not on the FY2021–FY2024 lists and #47 in FY2025; new, not ranked in Jul 2024–Jun 2025.
52	Snodgrass Contracting LLC Top agencies HHS (Department of Health and Human Services)	$1,364,359	0.2%	Rank history: not on the FY2021 list, #36 in FY2022, #39 in FY2023, #35 in FY2024 and #42 in FY2025; down 17 since Jul 2024–Jun 2025.
53	Reon Inc. Top agencies HHS (Department of Health and Human Services)	$1,319,132	0.2%	Rank history: not on the FY2021–FY2023 lists, #99 in FY2024 and not on the FY2025 list; up 118 since Jul 2024–Jun 2025.
54	Conditioned Air, LLC Top agencies USAF (Department of the Air Force)	$1,289,887	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
55	Advanced Cooling Technologies Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,194,189	0.2%	Rank history: not on the FY2021–FY2023 lists, #12 in FY2024 and #45 in FY2025; up 105 since Jul 2024–Jun 2025.
56	Alaska Structures Inc. Through AKS Industries Inc. Top agencies DLA (Defense Logistics Agency)	$1,156,499	0.2%	Rank history: not on the FY2021–FY2024 lists and #38 in FY2025; down 13 since Jul 2024–Jun 2025.
57	Export 220Volt Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$1,105,758	0.2%	Rank history: #88 in FY2021, #60 in FY2022, not on the FY2023 list, #66 in FY2024 and #93 in FY2025; up 10 since Jul 2024–Jun 2025.
58	The Boeing Company 4 awardees, including Argon ST, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$1,069,151	0.2%	Rank history: not on the FY2021 list, #93 in FY2022, not on the FY2023 list, #55 in FY2024 and not on the FY2025 list; up 226 since Jul 2024–Jun 2025.
59	S I T Corporation Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security) Navy (Department of the Navy)	$1,037,673	0.2%	Rank history: #49 in FY2021, #75 in FY2022, not on the FY2023 list, #58 in FY2024 and #52 in FY2025; down 14 since Jul 2024–Jun 2025.
60	Elevan LLC Top agencies USAF (Department of the Air Force)	$1,032,770	0.2%	Rank history: not on the FY2021 list, #68 in FY2022, not on the FY2023 list, #74 in FY2024 and #63 in FY2025; up 2 since Jul 2024–Jun 2025.
61	11400 LLC Top agencies DLA (Defense Logistics Agency) DOJ (Department of Justice) VA (Department of Veterans Affairs)	$1,019,077	0.2%	Rank history: not on the FY2021–FY2025 lists; up 69 since Jul 2024–Jun 2025.
62	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$997,268	0.2%	Rank history: not on the FY2021–FY2024 lists and #99 in FY2025; up 50 since Jul 2024–Jun 2025.
63	J.G.B. Enterprises Inc. Through Echelon Supply and Service, Inc. Top agencies DLA (Defense Logistics Agency)	$989,144	0.2%	Rank history: not on the FY2021–FY2024 lists and #67 in FY2025; up 17 since Jul 2024–Jun 2025.
64	The Ryan Group Inc Through Ryan & Associates, Inc. Top agencies Army (Department of the Army)	$962,412	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
65	Portable Air Group LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) USAF (Department of the Air Force)	$887,454	0.1%	Rank history: #89 in FY2021, #64 in FY2022, #40 in FY2023, #53 in FY2024 and #72 in FY2025; down 11 since Jul 2024–Jun 2025.
66	Jgils, LLC Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$865,344	0.1%	Rank history: not on the FY2021 list, #91 in FY2022, #69 in FY2023 and not on the FY2024–FY2025 lists; up 58 since Jul 2024–Jun 2025.
67	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency)	$865,102	0.1%	Rank history: not on the FY2021–FY2025 lists; up 106 since Jul 2024–Jun 2025.
68	CD Mechanical, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DOJ (Department of Justice)	$848,899	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
69	Chand, L.L.C. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$831,104	0.1%	Rank history: not on the FY2021–FY2025 lists; up 113 since Jul 2024–Jun 2025.
70	Scioteq LLC Through Electromech Technologies LLC Top agencies DLA (Defense Logistics Agency)	$830,630	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
71	Ray Blackman Enterprises, Inc. Top agencies DLA (Defense Logistics Agency)	$768,131	0.1%	Rank history: not on the FY2021–FY2023 lists, #96 in FY2024 and not on the FY2025 list; up 150 since Jul 2024–Jun 2025.
72	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 and #68 in FY2025; new, not ranked in Jul 2024–Jun 2025.
73	Meak Solutions Llc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) DHS (Department of Homeland Security)	$756,871	0.1%	Rank history: not on the FY2021–FY2024 lists and #58 in FY2025; up 3 since Jul 2024–Jun 2025.
74	Andrew'S Refrigeration Inc. Through Andrews Refrigeration Inc. Top agencies VA (Department of Veterans Affairs)	$748,131	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
75	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency)	$740,992	0.1%	Rank history: not on the FY2021–FY2024 lists and #82 in FY2025; up 64 since Jul 2024–Jun 2025.
76	Par Defense Industries, LLC Top agencies DLA (Defense Logistics Agency)	$740,264	0.1%	Rank history: #62 in FY2021 and not on the FY2022–FY2025 lists; up 119 since Jul 2024–Jun 2025.
77	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 and #71 in FY2025; new, not ranked in Jul 2024–Jun 2025.
78	JT West Construction, Inc. Top agencies USAF (Department of the Air Force)	$705,270	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
79	The Globe Equipment Company Inc Top agencies DECA (Defense Commissary Agency) DLA (Defense Logistics Agency) DOJ (Department of Justice)	$694,361	0.1%	Rank history: not on the FY2021–FY2022 lists, #73 in FY2023, not on the FY2024 list and #55 in FY2025; down 18 since Jul 2024–Jun 2025.
80	TECH Service Solutions LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) DHS (Department of Homeland Security)	$684,712	0.1%	Rank history: not on the FY2021–FY2025 lists; up 194 since Jul 2024–Jun 2025.
81	Quality Refrigeration Company, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$665,252	0.1%	Rank history: #34 in FY2021, #54 in FY2022, #84 in FY2023, #54 in FY2024 and #44 in FY2025; down 49 since Jul 2024–Jun 2025.
82	Arctic Slope Regional Corporation Through Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$662,242	0.1%	Rank history: not on the FY2021–FY2024 lists and #98 in FY2025; up 8 since Jul 2024–Jun 2025.
83	S.t.s. - Servizi Tecnologie E Sviluppo S.R.L. Top agencies DECA (Defense Commissary Agency)	$660,540	0.1%	Rank history: not on the FY2021–FY2023 lists, #69 in FY2024 and not on the FY2025 list; down 20 since Jul 2024–Jun 2025.
84	Olgoonik General, LLC Top agencies HHS (Department of Health and Human Services)	$652,960	0.1%	Rank history: not on the FY2021–FY2024 lists and #83 in FY2025; down 18 since Jul 2024–Jun 2025.
85	Rural Route 2, LLC Top agencies Navy (Department of the Navy)	$645,042	0.1%	Rank history: not on the FY2021–FY2024 lists and #76 in FY2025; new, not ranked in Jul 2024–Jun 2025.
86	Clark Air Conditioning Systems, Inc. Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$644,416	0.1%	Rank history: not on the FY2021–FY2025 lists; up 16 since Jul 2024–Jun 2025.
87	Polar King International, Inc. Top agencies USDA (Department of Agriculture) USAF (Department of the Air Force) DOJ (Department of Justice)	$644,020	0.1%	Rank history: #39 in FY2021, not on the FY2022 list, #72 in FY2023, #44 in FY2024 and #73 in FY2025; down 49 since Jul 2024–Jun 2025.
88	Kihomac Inc. Top agencies DLA (Defense Logistics Agency)	$640,496	0.1%	Rank history: not on the FY2021–FY2024 lists and #57 in FY2025; down 14 since Jul 2024–Jun 2025.
89	GFS Supply & Services Company, Inc. Top agencies DOT (Department of Transportation) USAF (Department of the Air Force)	$625,796	0.1%	Rank history: not on the FY2021–FY2024 lists and #77 in FY2025; up 239 since Jul 2024–Jun 2025.
90	Aviate Enterprises, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$592,365	0.1%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2023, not on the FY2024 list and #95 in FY2025; up 402 since Jul 2024–Jun 2025.
91	Makpak, LLC Top agencies DLA (Defense Logistics Agency)	$589,694	0.1%	Rank history: not on the FY2021–FY2025 lists; up 85 since Jul 2024–Jun 2025.
92	Millrock Technology Inc. Top agencies NASA (National Aeronautics and Space Administration)	$579,695	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
93	Sanitz Enterprises, Inc. Top agencies DLA (Defense Logistics Agency)	$570,453	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
94	Adrick Marine Group, Inc. Top agencies DHS (Department of Homeland Security)	$566,767	0.1%	Rank history: not on the FY2021–FY2023 lists, #98 in FY2024 and not on the FY2025 list; up 369 since Jul 2024–Jun 2025.
95	Am General LLC Top agencies DLA (Defense Logistics Agency)	$560,637	0.1%	Rank history: not on the FY2021–FY2024 lists and #75 in FY2025; up 31 since Jul 2024–Jun 2025.
96	Christway Construction Company, LLC Top agencies USAF (Department of the Air Force)	$519,706	0.1%	Rank history: not on the FY2021–FY2024 lists and #89 in FY2025; new, not ranked in Jul 2024–Jun 2025.
97	Indoff LLC Top agencies USAF (Department of the Air Force)	$519,204	0.1%	Rank history: not on the FY2021–FY2024 lists and #90 in FY2025; new, not ranked in Jul 2024–Jun 2025.
98	Prime Mechanical of Wisconsin LLC Top agencies DOI (Department of the Interior)	$516,274	0.1%	Rank history: not on the FY2021–FY2024 lists and #91 in FY2025; new, not ranked in Jul 2024–Jun 2025.
99	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency)	$509,450	0.1%	Rank history: not on the FY2021–FY2025 lists; up 21 since Jul 2024–Jun 2025.
100	Statz Corp Top agencies DLA (Defense Logistics Agency)	$501,654	0.1%	Rank history: not on the FY2021–FY2022 lists, #75 in FY2023, #62 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.

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100 of 871 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	$237,249,361	Johnson Controls Navy Systems, LLC
4120 Air Conditioning Equipment	$202,935,788	Johnson Controls Navy Systems, LLC
4140 Fans, Air Circulators, and Blower Equipment	$123,613,718	Pioneer Industries, LLC
4110 Refrigeration Equipment	$43,793,413	Ovc-Engineered Solutions 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 $622 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.
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 Jul 2024–Jun 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

Who were the top 10 PSC 41 contractors in Jul 2025–Jun 2026?

1. Johnson Controls Navy Systems, LLC ($174M), 2. Simulation Technologies Inc ($49.7M), 3. Mainstream Engineering Corp ($23.2M), 4. STS International, Incorporated ($19.7M), 5. Pioneer Industries, LLC ($17.9M), 6. Atlantic Diving Supply, Inc. ($17.3M), 7. Honeywell International Inc. ($16.6M), 8. Atap Inc. ($13.9M), 9. HDT Expeditionary Systems Inc. ($13.7M), 10. Leonardo S.p.A. ($13.6M).

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