Top 88 Contractors in PSC Z1NB: Maintenance of Heating and Cooling Plants, FY2024

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Performanceepc-Greenland JV LLC Top agencies VA (Department of Veterans Affairs)	$14,688,149	20.5%	Rank history: not on the FY2021–FY2023 lists and #7 in FY2025; new.
2	Qcm, Inc. Top agencies WHS (DOD Washington Headquarters Service)	$12,794,697	17.8%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023 and #3 in FY2025; unchanged since FY2023.
3	Mitchell Brothers Inc Top agencies Navy (Department of the Navy)	$8,960,150	12.5%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
4	CPF LLC Top agencies USDA (Department of Agriculture)	$7,963,193	11.1%	Rank history: #13 in FY2021, #7 in FY2022, #9 in FY2023 and #16 in FY2025; up 5 since FY2023.
5	Energy Systems Group, LLC Top agencies NASA (National Aeronautics and Space Administration)	$5,100,209	7.1%	Rank history: not on the FY2021–FY2023 lists and #2 in FY2025; new.
6	Honeywell International Inc. 2 awardees Top agencies VA (Department of Veterans Affairs)	$3,072,258	4.3%	Rank history: not on the FY2021–FY2022 lists, #6 in FY2023 and #51 in FY2025; unchanged since FY2023.
7	Government Contracting Resources, Inc. Top agencies Navy (Department of the Navy)	$2,897,671	4.0%	Rank history: #59 in FY2021, #39 in FY2022, not on the FY2023 list and #31 in FY2025; returned.
8	South Dade Air Conditioning and Refrigeration, Inc. Top agencies Army (Department of the Army)	$2,212,689	3.1%	Rank history: #7 in FY2021, #5 in FY2022, #7 in FY2023 and not on the FY2025 list; down 1 since FY2023.
9	Amentum Holdings, Inc. Through PAE Government Services, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,203,325	1.7%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2025; new.
10	Southeastern Industrial Construction, LLC Top agencies Navy (Department of the Navy)	$1,029,127	1.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
11	Centerpoint Energy, Inc. Through Energy Systems Group, LLC Top agencies NASA (National Aeronautics and Space Administration)	$992,754	1.4%	Rank history: #3 in FY2021, #3 in FY2022, #3 in FY2023 and not on the FY2025 list; down 8 since FY2023.
12	Pergravis Mission Critical Construction, LLC Top agencies DISA (Defense Information Systems Agency)	$951,111	1.3%	Rank history: not on the FY2021–FY2023 lists and #81 in FY2025; new.
13	Nana Regional Corporation Inc. Through Jade Creek Construction LLC Top agencies DOJ (Department of Justice)	$906,225	1.3%	Rank history: not on the FY2021–FY2022 lists, #1 in FY2023 and #23 in FY2025; down 12 since FY2023.
14	PAE Government Services Inc. Top agencies Navy (Department of the Navy)	$634,582	0.9%	Rank history: #5 in FY2021, #10 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
15	Capital Brand Group LLC Top agencies Navy (Department of the Navy)	$621,471	0.9%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
16	Amentum Services, Inc. Top agencies Navy (Department of the Navy)	$500,000	0.7%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
17	White Harvest Energy LLC Top agencies VA (Department of Veterans Affairs)	$423,424	0.6%	Rank history: not on the FY2021 list, #6 in FY2022, #10 in FY2023 and not on the FY2025 list; down 7 since FY2023.
18	Firelake Construction Inc Top agencies USDA (Department of Agriculture)	$357,873	0.5%	Rank history: not on the FY2021–FY2023 lists and #39 in FY2025; new.
19	Ecolab Inc. Through Nalco Company LLC Top agencies DOJ (Department of Justice)	$347,205	0.5%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
20	Mepvet LLC Top agencies VA (Department of Veterans Affairs)	$283,493	0.4%	Rank history: #16 in FY2021, #8 in FY2022, #33 in FY2023 and not on the FY2025 list; up 13 since FY2023.
21	Aktarius LLC Top agencies Navy (Department of the Navy)	$283,452	0.4%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2025; new.
22	Yorkshire Industries LLC Top agencies DOI (Department of the Interior)	$254,713	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
23	J Star Enterprises Inc. Top agencies USAF (Department of the Air Force)	$236,461	0.3%	Rank history: not on the FY2021–FY2022 lists, #20 in FY2023 and not on the FY2025 list; down 3 since FY2023.
24	Veterans Choice Services LLC Top agencies VA (Department of Veterans Affairs)	$221,432	0.3%	Rank history: not on the FY2021–FY2023 lists and #53 in FY2025; new.
25	Siemens Industry Inc. Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs)	$220,764	0.3%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2025; new.
26	Trane U.s. Inc. Top agencies USAF (Department of the Air Force) DOS (Department of State) HHS (Department of Health and Human Services)	$194,508	0.3%	Rank history: #22 in FY2021, #23 in FY2022, #19 in FY2023 and #10 in FY2025; down 7 since FY2023.
27	Venergy Group LLC Top agencies VA (Department of Veterans Affairs)	$186,459	0.3%	Rank history: not on the FY2021–FY2023 lists and #9 in FY2025; new.
28	Belt Built Contracting, LLC Top agencies DOJ (Department of Justice)	$169,047	0.2%	Rank history: #31 in FY2021, not on the FY2022 list, #30 in FY2023 and not on the FY2025 list; up 2 since FY2023.
29	Water Chemistry Inc Top agencies Navy (Department of the Navy)	$160,931	0.2%	Rank history: not on the FY2021–FY2022 lists, #22 in FY2023 and #27 in FY2025; down 7 since FY2023.
30	Associated Boiler Line Equipment Co., Inc. Top agencies USAF (Department of the Air Force)	$152,530	0.2%	Rank history: not on the FY2021–FY2023 lists and #33 in FY2025; new.
31	Caldaia Controls LLC 2 awardees Top agencies VA (Department of Veterans Affairs)	$142,450	0.2%	Rank history: #51 in FY2021, #58 in FY2022, #50 in FY2023 and #12 in FY2025; up 19 since FY2023.
32	M / S Entech Hvac Solutions Top agencies DOS (Department of State)	$122,111	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
33	Johnson Controls Inc 2 awardees Top agencies USAF (Department of the Air Force) DOJ (Department of Justice) HHS (Department of Health and Human Services)	$109,015	0.2%	Rank history: not on the FY2021–FY2023 lists and #30 in FY2025; new.
34	Valley Mechanical Inc. Top agencies VA (Department of Veterans Affairs)	$104,873	0.1%	Rank history: not on the FY2021–FY2022 lists, #5 in FY2023 and #21 in FY2025; down 29 since FY2023.
35	Infinity Cooling Expert SDN BHD Top agencies DOS (Department of State)	$100,152	0.1%	Rank history: not on the FY2021 list, #31 in FY2022, #36 in FY2023 and #37 in FY2025; up 1 since FY2023.
36	Williamsville Resources II, Inc. Top agencies DOI (Department of the Interior)	$98,000	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
37	J&B Hartigan, Inc. Top agencies VA (Department of Veterans Affairs)	$87,619	0.1%	Rank history: not on the FY2021–FY2022 lists, #28 in FY2023 and #36 in FY2025; down 9 since FY2023.
38	Building Automation Services, Inc. Top agencies DOJ (Department of Justice)	$83,000	0.1%	Rank history: #34 in FY2021, #35 in FY2022, #39 in FY2023 and not on the FY2025 list; up 1 since FY2023.
39	R & M Government Services Inc. Top agencies VA (Department of Veterans Affairs)	$80,542	0.1%	Rank history: not on the FY2021–FY2022 lists, #37 in FY2023 and #41 in FY2025; down 2 since FY2023.
40	Paramount Construction Group, LLC Top agencies VA (Department of Veterans Affairs)	$75,122	0.1%	Rank history: not on the FY2021 list, #43 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
41	Daikin Applied Americas Inc Top agencies Commerce (Department of Commerce)	$74,504	0.1%	Rank history: not on the FY2021–FY2023 lists and #25 in FY2025; new.
42	Professionals HIR LLC Top agencies GSA (General Services Administration)	$70,515	0.1%	Rank history: not on the FY2021 list, #13 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
43	Daikin Applied Latin America, L.L.C. Top agencies DOS (Department of State)	$70,055	0.1%	Rank history: not on the FY2021–FY2023 lists and #40 in FY2025; new.
44	Multistack LLC Top agencies DOS (Department of State)	$62,616	0.1%	Rank history: not on the FY2021–FY2023 lists and #34 in FY2025; new.
45	Temperature Technology, Inc. Top agencies USDA (Department of Agriculture)	$62,005	0.1%	Rank history: #33 in FY2021, #37 in FY2022, #27 in FY2023 and #43 in FY2025; down 18 since FY2023.
46	Johnson Controls Industries 2 awardees, including Johnson Controls, Inc. Top agencies DOS (Department of State) DOJ (Department of Justice)	$57,889	0.1%	Rank history: not on the FY2021 list, #38 in FY2022, #23 in FY2023 and not on the FY2025 list; down 23 since FY2023.
47	RJY Group LLC Top agencies VA (Department of Veterans Affairs) Commerce (Department of Commerce)	$55,361	0.1%	Rank history: #27 in FY2021, #18 in FY2022, #24 in FY2023 and #71 in FY2025; down 23 since FY2023.
48	United Rentals (North America), Inc. Top agencies SSA (Social Security Administration)	$52,947	0.1%	Rank history: not on the FY2021–FY2023 lists and #38 in FY2025; new.
49	GEC Industrial Boilers Top agencies DOS (Department of State)	$50,215	0.1%	Rank history: #44 in FY2021, #42 in FY2022, #44 in FY2023 and #45 in FY2025; down 5 since FY2023.
50	American Engineering Corporation 2 awardees Top agencies OSD (Office of the Secretary of Defense)	$46,621	0.1%	Rank history: #49 in FY2021, #44 in FY2022, #47 in FY2023 and #35 in FY2025; down 3 since FY2023.
51	D7, LLC Top agencies Navy (Department of the Navy)	$43,439	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
52	Four Winds Mechanical HTC/AC Inc. Top agencies VA (Department of Veterans Affairs)	$43,000	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
53	C&J General Contractors Group Inc. Top agencies VA (Department of Veterans Affairs)	$40,834	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
54	Rittal GMBH & Co KG Through Rittal North America LLC Top agencies Treasury (Department of the Treasury)	$39,409	0.1%	Rank history: #47 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; returned.
55	ACE Gois LLC Top agencies DOS (Department of State)	$39,000	0.1%	Rank history: not on the FY2021–FY2022 lists, #52 in FY2023 and #47 in FY2025; down 3 since FY2023.
56	Fiber Business Solutions Group Inc. Top agencies USDA (Department of Agriculture)	$36,523	0.1%	Rank history: #17 in FY2021, not on the FY2022 list, #14 in FY2023 and not on the FY2025 list; down 42 since FY2023.
57	Brown Point Facility Management Solutions, LLC Top agencies DHS (Department of Homeland Security)	$32,818	<0.1%	Rank history: not on the FY2021–FY2023 lists and #48 in FY2025; new.
58	Cummins-Wagner Company, Inc. Top agencies Smithsonian (Smithsonian Institution)	$28,418	<0.1%	Rank history: not on the FY2021–FY2023 lists and #68 in FY2025; new.
59	Hwsi GMBH Top agencies DOS (Department of State)	$27,763	<0.1%	Rank history: #56 in FY2021, #52 in FY2022, #54 in FY2023 and #55 in FY2025; down 5 since FY2023.
60	Pacific Coast Contracting Group Top agencies VA (Department of Veterans Affairs)	$26,880	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
61	Mechanical Business Holdings LLC Top agencies DOJ (Department of Justice)	$26,760	<0.1%	Rank history: not on the FY2021 list, #29 in FY2022, #57 in FY2023 and #56 in FY2025; down 4 since FY2023.
62	Victory Contracting LLC Top agencies DOI (Department of the Interior)	$25,880	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
63	Up-Side Management Co Top agencies VA (Department of Veterans Affairs)	$25,550	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
64	Phoenix General Contractors, LLC Top agencies DHS (Department of Homeland Security)	$24,993	<0.1%	Rank history: not on the FY2021–FY2022 lists, #11 in FY2023 and not on the FY2025 list; down 53 since FY2023.
65	Combustion Service & Equipment Co Top agencies DOJ (Department of Justice)	$24,855	<0.1%	Rank history: not on the FY2021 list, #40 in FY2022, not on the FY2023 list and #49 in FY2025; returned.
66	The Dan Wright Corp. Top agencies DHS (Department of Homeland Security)	$23,170	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
67	Trade On Demand, Inc. Top agencies DHS (Department of Homeland Security)	$22,865	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
68	Global Service Titan LLC Top agencies DOS (Department of State)	$21,765	<0.1%	Rank history: #58 in FY2021, not on the FY2022–FY2023 lists and #65 in FY2025; returned.
69	Builder Properties Development Enterprise, LLC Top agencies DOI (Department of the Interior)	$21,462	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
70	Federal Builders LLC Top agencies DHS (Department of Homeland Security)	$21,213	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
71	Vision Contracting Inc. Top agencies DHS (Department of Homeland Security)	$18,535	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
72	Carrier Rental Systems Inc Through Carrier (Thailand) Co Ltd Top agencies DOS (Department of State)	$15,926	<0.1%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2023 and #67 in FY2025; down 7 since FY2023.
73	Condor Technologies, Inc. Top agencies Army (Department of the Army)	$15,223	<0.1%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2023 and #66 in FY2025; down 6 since FY2023.
74	Bradley-Sciocchetti, Inc. Top agencies DHS (Department of Homeland Security)	$14,896	<0.1%	Rank history: not on the FY2021 list, #63 in FY2022, #66 in FY2023 and #69 in FY2025; down 8 since FY2023.
75	Chesapeake Systems, LLC Top agencies Smithsonian (Smithsonian Institution)	$12,659	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
76	Bick Holdings Inc. Through Bick Group Inc. Top agencies DISA (Defense Information Systems Agency)	$11,711	<0.1%	Rank history: #63 in FY2021, #28 in FY2022, #25 in FY2023 and not on the FY2025 list; down 51 since FY2023.
77	Western Cape Rubicon Electrical (Pty) Ltd Top agencies DOS (Department of State)	$10,921	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
78	Tezel and Cotter Air Conditioning, L.P. Top agencies DOI (Department of the Interior)	$10,855	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
79	Osung Engineering Top agencies DOS (Department of State)	$10,757	<0.1%	Rank history: not on the FY2021–FY2022 lists, #71 in FY2023 and not on the FY2025 list; down 8 since FY2023.
80	Etolin Strait Development Group LLC Through Etolin Strait Partners, LLC Top agencies Navy (Department of the Navy)	$9,633	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
81	Crown Based Services LLC Top agencies DOE (Department of Energy)	$9,480	<0.1%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2023 and not on the FY2025 list; down 7 since FY2023.
82	Windhoeker Kaltetechnik Services CC Top agencies DOS (Department of State)	$8,286	<0.1%	Rank history: not on the FY2021–FY2023 lists and #74 in FY2025; new.
83	Mshc, Inc. Through Tolin Mechanical Systems Company, LLC Top agencies DOI (Department of the Interior)	$8,028	<0.1%	Rank history: #61 in FY2021, #49 in FY2022, #26 in FY2023 and not on the FY2025 list; down 57 since FY2023.
84	Christway Construction Company, LLC Top agencies DHS (Department of Homeland Security)	$7,920	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
85	Service First GP (Pty) Ltd Top agencies USAID (US Agency for International Development)	$5,630	<0.1%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2023 and not on the FY2025 list; down 16 since FY2023.
86	Temperature, Inc. Top agencies VA (Department of Veterans Affairs)	$5,584	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
87	Umpqua Sheet Metal, Inc. Top agencies DOI (Department of the Interior)	$4,813	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
88	Patrick's Plumbing & Heating, Inc. Top agencies DOI (Department of the Interior)	$2,905	<0.1%	Rank history: not on the FY2021–FY2022 lists, #46 in FY2023 and not on the FY2025 list; down 42 since FY2023.

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 $71.8 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