Top 82 Contractors in PSC Z1NB: Maintenance of Heating and Cooling Plants, FY2025

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Saw Greenland, LLC Top agencies VA (Department of Veterans Affairs)	$41,222,156	49.4%	Rank history: not on the FY2021–FY2024 lists; new.
2	Energy Systems Group, LLC Top agencies NASA (National Aeronautics and Space Administration)	$7,124,373	8.5%	Rank history: not on the FY2021–FY2023 lists and #5 in FY2024; up 3 since FY2024.
3	Qcm, Inc. Top agencies WHS (DOD Washington Headquarters Service)	$5,961,909	7.1%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023 and #2 in FY2024; down 1 since FY2024.
4	Capitol United Solutions Inc. Top agencies Navy (Department of the Navy)	$5,143,274	6.2%	Rank history: not on the FY2021–FY2024 lists; new.
5	DTS P&L JV2 Top agencies Navy (Department of the Navy)	$4,568,218	5.5%	Rank history: not on the FY2021–FY2024 lists; new.
6	RWH Capital LLC Top agencies VA (Department of Veterans Affairs)	$3,235,634	3.9%	Rank history: not on the FY2021–FY2024 lists; new.
7	Performanceepc-Greenland JV LLC Top agencies VA (Department of Veterans Affairs)	$1,601,649	1.9%	Rank history: not on the FY2021–FY2023 lists and #1 in FY2024; down 6 since FY2024.
8	Coho Technology Solutions, LLC Top agencies Navy (Department of the Navy)	$1,504,148	1.8%	Rank history: not on the FY2021–FY2024 lists; new.
9	Venergy Group LLC Top agencies VA (Department of Veterans Affairs)	$1,118,755	1.3%	Rank history: not on the FY2021–FY2023 lists and #27 in FY2024; up 18 since FY2024.
10	Trane U.s. Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) DOI (Department of the Interior)	$771,029	0.9%	Rank history: #22 in FY2021, #23 in FY2022, #19 in FY2023 and #26 in FY2024; up 16 since FY2024.
11	Nelcy Construction Corp Top agencies DHS (Department of Homeland Security)	$750,000	0.9%	Rank history: not on the FY2021–FY2022 lists, #18 in FY2023 and not on the FY2024 list; returned.
12	Caldaia Controls LLC Top agencies VA (Department of Veterans Affairs)	$748,716	0.9%	Rank history: #51 in FY2021, #58 in FY2022, #50 in FY2023 and #31 in FY2024; up 19 since FY2024.
13	Tecc Corporation Top agencies Army (Department of the Army)	$686,190	0.8%	Rank history: not on the FY2021–FY2024 lists; new.
14	Amentum Holdings, Inc. Through Amentum Technology, Inc. Top agencies Navy (Department of the Navy)	$671,875	0.8%	Rank history: not on the FY2021–FY2023 lists and #9 in FY2024; down 5 since FY2024.
15	Rock Construction Management LLC Top agencies VA (Department of Veterans Affairs)	$626,540	0.8%	Rank history: not on the FY2021–FY2024 lists; new.
16	CPF LLC Top agencies USDA (Department of Agriculture)	$511,442	0.6%	Rank history: #13 in FY2021, #7 in FY2022, #9 in FY2023 and #4 in FY2024; down 12 since FY2024.
17	Reagent World Inc Top agencies DOI (Department of the Interior) DOS (Department of State)	$406,576	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
18	Ecolab Inc. Through Nalco Company LLC Top agencies DOJ (Department of Justice)	$397,503	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
19	Aktarius LLC Top agencies Navy (Department of the Navy)	$355,429	0.4%	Rank history: not on the FY2021–FY2023 lists and #21 in FY2024; up 2 since FY2024.
20	Mepvet LLC Top agencies VA (Department of Veterans Affairs)	$278,653	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
21	Valley Mechanical Inc. Top agencies VA (Department of Veterans Affairs)	$264,266	0.3%	Rank history: not on the FY2021–FY2022 lists, #5 in FY2023 and #34 in FY2024; up 13 since FY2024.
22	Invicta Global, LLC Top agencies Navy (Department of the Navy)	$255,070	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
23	Nana Regional Corporation Inc. Through Jade Creek Construction LLC Top agencies DOJ (Department of Justice)	$250,860	0.3%	Rank history: not on the FY2021–FY2022 lists, #1 in FY2023 and #13 in FY2024; down 10 since FY2024.
24	J Star Enterprises Inc. Top agencies USAF (Department of the Air Force)	$236,461	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
25	Daikin Applied Americas Inc Top agencies DOS (Department of State)	$233,504	0.3%	Rank history: not on the FY2021–FY2023 lists and #41 in FY2024; up 16 since FY2024.
26	Siemens Industry Inc. Top agencies DOJ (Department of Justice)	$186,579	0.2%	Rank history: not on the FY2021–FY2023 lists and #25 in FY2024; down 1 since FY2024.
27	Water Chemistry Inc Top agencies Navy (Department of the Navy)	$184,745	0.2%	Rank history: not on the FY2021–FY2022 lists, #22 in FY2023 and #29 in FY2024; up 2 since FY2024.
28	Installatiebedrijf Embrechts B.V. Top agencies Army (Department of the Army)	$182,104	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
29	Giraffeworks, LLC Top agencies USAF (Department of the Air Force)	$170,000	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
30	Johnson Controls Inc 2 awardees, including Johnson Controls Industries Top agencies DOS (Department of State) USAF (Department of the Air Force) DOJ (Department of Justice)	$167,994	0.2%	Rank history: not on the FY2021–FY2023 lists and #33 in FY2024; up 3 since FY2024.
31	Government Contracting Resources, Inc. Top agencies Navy (Department of the Navy)	$159,090	0.2%	Rank history: #59 in FY2021, #39 in FY2022, not on the FY2023 list and #7 in FY2024; down 24 since FY2024.
32	Meco Contractors LLC Top agencies VA (Department of Veterans Affairs)	$152,500	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
33	Associated Boiler Line Equipment Co., Inc. Top agencies USAF (Department of the Air Force)	$150,646	0.2%	Rank history: not on the FY2021–FY2023 lists and #30 in FY2024; down 3 since FY2024.
34	Multistack LLC Top agencies DOS (Department of State)	$130,230	0.2%	Rank history: not on the FY2021–FY2023 lists and #44 in FY2024; up 10 since FY2024.
35	American Engineering Corporation Top agencies OSD (Office of the Secretary of Defense)	$120,237	0.1%	Rank history: #49 in FY2021, #44 in FY2022, #47 in FY2023 and #50 in FY2024; up 15 since FY2024.
36	J&B Hartigan, Inc. Top agencies VA (Department of Veterans Affairs)	$108,245	0.1%	Rank history: not on the FY2021–FY2022 lists, #28 in FY2023 and #37 in FY2024; up 1 since FY2024.
37	Infinity Cooling Expert SDN BHD Top agencies DOS (Department of State)	$100,972	0.1%	Rank history: not on the FY2021 list, #31 in FY2022, #36 in FY2023 and #35 in FY2024; down 2 since FY2024.
38	United Rentals (North America), Inc. Top agencies SSA (Social Security Administration)	$86,464	0.1%	Rank history: not on the FY2021–FY2023 lists and #48 in FY2024; up 10 since FY2024.
39	Firelake Construction Inc Top agencies USDA (Department of Agriculture)	$85,748	0.1%	Rank history: not on the FY2021–FY2023 lists and #18 in FY2024; down 21 since FY2024.
40	Daikin Applied Latin America, L.L.C. Top agencies DOS (Department of State)	$74,492	0.1%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2024; up 3 since FY2024.
41	R & M Government Services Inc. Top agencies VA (Department of Veterans Affairs)	$69,036	0.1%	Rank history: not on the FY2021–FY2022 lists, #37 in FY2023 and #39 in FY2024; down 2 since FY2024.
42	Alaska Integrated Services, LLC Top agencies DOI (Department of the Interior)	$66,973	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
43	Temperature Technology, Inc. Top agencies USDA (Department of Agriculture)	$65,865	0.1%	Rank history: #33 in FY2021, #37 in FY2022, #27 in FY2023 and #45 in FY2024; up 2 since FY2024.
44	Ajce Corporation Top agencies DOI (Department of the Interior)	$50,950	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
45	GEC Industrial Boilers Top agencies DOS (Department of State)	$50,651	0.1%	Rank history: #44 in FY2021, #42 in FY2022, #44 in FY2023 and #49 in FY2024; up 4 since FY2024.
46	Climea Top agencies DOS (Department of State)	$45,856	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
47	ACE Gois LLC Top agencies DOS (Department of State)	$42,900	0.1%	Rank history: not on the FY2021–FY2022 lists, #52 in FY2023 and #55 in FY2024; up 8 since FY2024.
48	Brown Point Facility Management Solutions, LLC Top agencies DHS (Department of Homeland Security)	$42,094	0.1%	Rank history: not on the FY2021–FY2023 lists and #57 in FY2024; up 9 since FY2024.
49	Combustion Service & Equipment Co Top agencies DOJ (Department of Justice)	$36,145	<0.1%	Rank history: not on the FY2021 list, #40 in FY2022, not on the FY2023 list and #65 in FY2024; up 16 since FY2024.
50	Temperature Control Services, L.L.C. Top agencies DOS (Department of State)	$30,780	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
51	Honeywell International Inc. Through Honeywell Aerospace International Inc. Top agencies DOS (Department of State)	$29,943	<0.1%	Rank history: not on the FY2021–FY2022 lists, #6 in FY2023 and #6 in FY2024; down 45 since FY2024.
52	Pacific Place Services LLC Top agencies DOS (Department of State)	$29,319	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
53	Veterans Choice Services LLC Top agencies VA (Department of Veterans Affairs)	$28,995	<0.1%	Rank history: not on the FY2021–FY2023 lists and #24 in FY2024; down 29 since FY2024.
54	Colonie Mechanical Contractors, Inc. Top agencies Army (Department of the Army)	$27,950	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
55	Hwsi GMBH Top agencies DOS (Department of State)	$27,912	<0.1%	Rank history: #56 in FY2021, #52 in FY2022, #54 in FY2023 and #59 in FY2024; up 4 since FY2024.
56	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 #61 in FY2024; up 5 since FY2024.
57	Biasci S.R.L. Top agencies Army (Department of the Army)	$26,721	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
58	Focused Asset Management LLC Top agencies DHS (Department of Homeland Security)	$25,590	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
59	Istituto Italiano Del Marchio DI Qualita' S.P.A. Siglabile IMQ S.P.A. Top agencies Army (Department of the Army)	$24,480	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
60	Johnson Controls (India) Private Limited Top agencies DOS (Department of State)	$23,804	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
61	Sippel Company LLC Top agencies DHS (Department of Homeland Security)	$23,750	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
62	Silver Lake - TMG Jv#1, LLC Top agencies DOJ (Department of Justice)	$20,160	<0.1%	Rank history: not on the FY2021 list, #4 in FY2022, #8 in FY2023 and not on the FY2024 list; returned.
63	Commercial Air, Inc. Top agencies DOJ (Department of Justice)	$19,027	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
64	Tolin Mechanical Systems Company, LLC Top agencies DOI (Department of the Interior)	$18,028	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
65	Global Service Titan LLC Top agencies DOS (Department of State)	$17,212	<0.1%	Rank history: #58 in FY2021, not on the FY2022–FY2023 lists and #68 in FY2024; up 3 since FY2024.
66	Condor Technologies, Inc. Top agencies Army (Department of the Army)	$16,745	<0.1%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2023 and #73 in FY2024; up 7 since FY2024.
67	Carrier Rental Systems Inc Through Carrier (Thailand) Co Ltd Top agencies DOS (Department of State)	$16,723	<0.1%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2023 and #72 in FY2024; up 5 since FY2024.
68	Cummins-Wagner Company, Inc. Top agencies Smithsonian (Smithsonian Institution)	$16,697	<0.1%	Rank history: not on the FY2021–FY2023 lists and #58 in FY2024; down 10 since FY2024.
69	Bradley-Sciocchetti, Inc. Top agencies DHS (Department of Homeland Security)	$15,424	<0.1%	Rank history: not on the FY2021 list, #63 in FY2022, #66 in FY2023 and #74 in FY2024; up 5 since FY2024.
70	Mid-Atlantic Controls Corporation Top agencies DOJ (Department of Justice)	$14,424	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
71	RJY Group LLC Top agencies Commerce (Department of Commerce) VA (Department of Veterans Affairs)	$13,913	<0.1%	Rank history: #27 in FY2021, #18 in FY2022, #24 in FY2023 and #47 in FY2024; down 24 since FY2024.
72	Sanei Thanks, K.K. Top agencies Army (Department of the Army)	$13,500	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
73	Hutchins Hvac Inc. Top agencies Navy (Department of the Navy)	$11,655	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
74	Windhoeker Kaltetechnik Services CC Top agencies DOS (Department of State)	$10,321	<0.1%	Rank history: not on the FY2021–FY2023 lists and #82 in FY2024; up 8 since FY2024.
75	Cryo-Tech Inc. Top agencies VA (Department of Veterans Affairs)	$9,916	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
76	Axiom Builders Inc. Top agencies DOI (Department of the Interior)	$9,000	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
77	Arctic Air and Heat, L.L.C. Top agencies DOI (Department of the Interior)	$7,064	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
78	MPC Enterprises LLC Top agencies DOI (Department of the Interior)	$5,261	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
79	GHC Mechanical Services, Inc. Top agencies DOI (Department of the Interior)	$4,903	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
80	Lewis Heating and A / C, LLC Top agencies USDA (Department of Agriculture)	$4,750	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
81	Pergravis Mission Critical Construction, LLC Top agencies DISA (Defense Information Systems Agency)	$4,200	<0.1%	Rank history: not on the FY2021–FY2023 lists and #12 in FY2024; down 69 since FY2024.
82	NW Electric Inc. Top agencies DOI (Department of the Interior)	$3,956	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.

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 $83.4 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 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