Top 84 Contractors in PSC Z1NB: Maintenance of Heating and Cooling Plants, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Hensel Phelps Construction Co Top agencies DOJ (Department of Justice)	$41,100,000	48.4%	Rank history: #1 in FY2022, #4 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
2	Qcm, Inc. Top agencies WHS (DOD Washington Headquarters Service)	$8,555,655	10.1%	Rank history: #2 in FY2022, #2 in FY2023, #2 in FY2024 and #3 in FY2025; down 1 since FY2020.
3	Centerpoint Energy, Inc. Through Energy Systems Group, LLC Top agencies NASA (National Aeronautics and Space Administration)	$7,659,223	9.0%	Rank history: #3 in FY2022, #3 in FY2023, #11 in FY2024 and not on the FY2025 list; up 11 since FY2020.
4	Brican, Inc. Top agencies VA (Department of Veterans Affairs)	$5,099,813	6.0%	Rank history: #20 in FY2022, #12 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
5	PAE Government Services Inc. Through Amentum Design and Facility Management Top agencies Navy (Department of the Navy)	$3,157,099	3.7%	Rank history: #10 in FY2022, not on the FY2023 list, #14 in FY2024 and not on the FY2025 list; down 3 since FY2020.
6	Exelon Corporation Through Potomac Electric Power Co Top agencies HHS (Department of Health and Human Services)	$2,200,605	2.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
7	South Dade Air Conditioning and Refrigeration, Inc. Top agencies Army (Department of the Army)	$2,037,574	2.4%	Rank history: #5 in FY2022, #7 in FY2023, #8 in FY2024 and not on the FY2025 list; up 1 since FY2020.
8	Creative Builds Corporation Top agencies Army (Department of the Army)	$1,915,251	2.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
9	Z Squared Builders Inc. Top agencies DOI (Department of the Interior)	$1,056,504	1.2%	Rank history: #70 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
10	Nihon Meccs Co.,Ltd. Top agencies Navy (Department of the Navy)	$945,271	1.1%	Rank history: not on the FY2022–FY2025 lists; up 7 since FY2020.
11	Jett's Specialty Contracting, LLC Top agencies VA (Department of Veterans Affairs)	$916,188	1.1%	Rank history: #51 in FY2022, #62 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
12	AMG JV Top agencies GSA (General Services Administration)	$766,000	0.9%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
13	CPF LLC Top agencies USDA (Department of Agriculture)	$716,623	0.8%	Rank history: #7 in FY2022, #9 in FY2023, #4 in FY2024 and #16 in FY2025; down 8 since FY2020.
14	M & M Welding & Fabricators Inc. Top agencies GSA (General Services Administration)	$500,000	0.6%	Rank history: not on the FY2022–FY2025 lists; down 4 since FY2020.
15	Fortis Industries LLC Top agencies Navy (Department of the Navy)	$488,158	0.6%	Rank history: not on the FY2022–FY2025 lists; down 6 since FY2020.
16	Mepvet LLC Top agencies VA (Department of Veterans Affairs)	$447,714	0.5%	Rank history: #8 in FY2022, #33 in FY2023, #20 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
17	Fiber Business Solutions Group Inc. Top agencies DOI (Department of the Interior)	$368,432	0.4%	Rank history: not on the FY2022 list, #14 in FY2023, #56 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
18	Johnson Controls Security Solutions LLC 5 awardees, including Johnson Controls, Inc., Johnson Controls Industries and Johnson Controls Building Automation Systems, LLC Top agencies VA (Department of Veterans Affairs) DOS (Department of State) HHS (Department of Health and Human Services)	$366,822	0.4%	Rank history: #9 in FY2022, #70 in FY2023 and not on the FY2024–FY2025 lists; up 33 since FY2020.
19	Process Hvac Solutions LLC Top agencies WHS (DOD Washington Headquarters Service)	$348,221	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
20	Global Systemized Industry Top agencies USAF (Department of the Air Force)	$290,552	0.3%	Rank history: #36 in FY2022 and not on the FY2023–FY2025 lists; up 4 since FY2020.
21	Universal Services Provider LLC Top agencies Navy (Department of the Navy)	$238,806	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
22	Trane U.S. Inc. Top agencies DOI (Department of the Interior) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$191,947	0.2%	Rank history: #23 in FY2022, #19 in FY2023, #26 in FY2024 and #10 in FY2025; up 51 since FY2020.
23	Spees LLC 2 awardees, including Paramount Construction Group, LLC and Spees-Hernandez JV LLC Top agencies VA (Department of Veterans Affairs)	$188,126	0.2%	Rank history: #30 in FY2022 and not on the FY2023–FY2025 lists; down 19 since FY2020.
24	Fiorini Impianti SRL Top agencies Army (Department of the Army)	$146,135	0.2%	Rank history: not on the FY2022–FY2025 lists; up 8 since FY2020.
25	HPS Mechanical, Inc. Top agencies Navy (Department of the Navy)	$143,722	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
26	Casto Technical Services Inc. Top agencies DOJ (Department of Justice)	$136,038	0.2%	Rank history: #46 in FY2022, #77 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2020.
27	RJY Group LLC Top agencies VA (Department of Veterans Affairs)	$135,195	0.2%	Rank history: #18 in FY2022, #24 in FY2023, #47 in FY2024 and #71 in FY2025; up 9 since FY2020.
28	United Technologies, LLC Top agencies USAF (Department of the Air Force)	$130,438	0.2%	Rank history: #41 in FY2022 and not on the FY2023–FY2025 lists; down 5 since FY2020.
29	Polyearth USA LLC Top agencies VA (Department of Veterans Affairs)	$120,987	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
30	RTX Corporation Through Carrier Singapore (Pte) Limited Top agencies DOS (Department of State)	$108,801	0.1%	Rank history: #53 in FY2022 and not on the FY2023–FY2025 lists; up 9 since FY2020.
31	Belt Built Contracting, LLC Top agencies DOJ (Department of Justice)	$103,381	0.1%	Rank history: not on the FY2022 list, #30 in FY2023, #28 in FY2024 and not on the FY2025 list; down 11 since FY2020.
32	Advanced Mechanical & Hvac, LLC Top agencies DOT (Department of Transportation)	$98,732	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
33	Temperature Technology, Inc. Top agencies USDA (Department of Agriculture)	$76,817	0.1%	Rank history: #37 in FY2022, #27 in FY2023, #45 in FY2024 and #43 in FY2025; up 19 since FY2020.
34	Building Automation Services, Inc. Top agencies DOJ (Department of Justice)	$76,800	0.1%	Rank history: #35 in FY2022, #39 in FY2023, #38 in FY2024 and not on the FY2025 list; up 12 since FY2020.
35	Bick Group Inc. Top agencies DISA (Defense Information Systems Agency)	$67,050	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
36	Brothers Mechanical Services LLC Top agencies PBGC (Pension Benefit Guaranty Corporation)	$66,556	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
37	Mem Contracting, Inc. Top agencies VA (Department of Veterans Affairs)	$65,437	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
38	Kankyo Seibi Co.,Ltd. Top agencies USAF (Department of the Air Force)	$60,438	0.1%	Rank history: #26 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
39	D7, LLC Top agencies Navy (Department of the Navy)	$57,415	0.1%	Rank history: #15 in FY2022, #41 in FY2023 and not on the FY2024–FY2025 lists; up 14 since FY2020.
40	Greensource Cincinnati Top agencies USAF (Department of the Air Force)	$54,000	0.1%	Rank history: not on the FY2022–FY2025 lists; up 14 since FY2020.
41	Pyramid Contracting LLC Top agencies Navy (Department of the Navy)	$53,740	0.1%	Rank history: #17 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
42	The Robins & Morton Group Top agencies DOJ (Department of Justice)	$50,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
43	Clark Construction Group LLC Top agencies DOJ (Department of Justice)	$50,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
44	GEC Industrial Boilers Top agencies DOS (Department of State)	$49,996	0.1%	Rank history: #42 in FY2022, #44 in FY2023, #49 in FY2024 and #45 in FY2025; new, not ranked in FY2020.
45	Outside the Box LLC Top agencies DOI (Department of the Interior)	$46,800	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
46	Advanced Technology Construction Corporation Top agencies VA (Department of Veterans Affairs)	$42,842	0.1%	Rank history: #22 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
47	Rittal GMBH & Co KG Through Rittal North America LLC Top agencies Treasury (Department of the Treasury)	$42,306	<0.1%	Rank history: not on the FY2022–FY2023 lists, #54 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
48	Britam S.A. Top agencies DOS (Department of State)	$40,602	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 15 since FY2020.
49	American Engineering Corporation Top agencies OSD (Office of the Secretary of Defense)	$38,228	<0.1%	Rank history: #44 in FY2022, #47 in FY2023, #50 in FY2024 and #35 in FY2025; down 27 since FY2020.
50	Johnson Controls Be Operations Mexico, S. De R.l. De C.V. Top agencies DOS (Department of State)	$36,132	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 16 since FY2020.
51	Caldaia Controls LLC Top agencies VA (Department of Veterans Affairs)	$30,900	<0.1%	Rank history: #58 in FY2022, not on the FY2023 list, #31 in FY2024 and #12 in FY2025; new, not ranked in FY2020.
52	Kontinent-Stroi, OOO Top agencies DOS (Department of State)	$29,907	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
53	Ferguson Enterprises Inc. Through Wolseley Industrial Group Top agencies NASA (National Aeronautics and Space Administration)	$28,642	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
54	Berg Enterprises Inc. Top agencies DISA (Defense Information Systems Agency)	$28,039	<0.1%	Rank history: #47 in FY2022, #61 in FY2023 and not on the FY2024–FY2025 lists; up 15 since FY2020.
55	Hamilton Pacific Chamberlain LLC Top agencies VA (Department of Veterans Affairs)	$27,152	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
56	Hwsi GMBH Top agencies DOS (Department of State)	$27,016	<0.1%	Rank history: #52 in FY2022, #54 in FY2023, #59 in FY2024 and #55 in FY2025; up 16 since FY2020.
57	Pro-Mark Services Inc. Top agencies USAF (Department of the Air Force)	$25,917	<0.1%	Rank history: #48 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
58	Global Service Titan LLC Top agencies DOS (Department of State)	$25,644	<0.1%	Rank history: not on the FY2022–FY2023 lists, #68 in FY2024 and #65 in FY2025; up 2 since FY2020.
59	Government Contracting Resources, Inc. Top agencies Navy (Department of the Navy)	$22,679	<0.1%	Rank history: #39 in FY2022, not on the FY2023 list, #7 in FY2024 and #31 in FY2025; down 24 since FY2020.
60	Everglades Air Conditioning Inc. Top agencies DHS (Department of Homeland Security)	$20,340	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 37 since FY2020.
61	Mshc, Inc. 2 awardees, including Engineered Cooling Services LLC and Tolin Mechanical Systems Company, LLC Top agencies DOJ (Department of Justice) DOI (Department of the Interior)	$20,196	<0.1%	Rank history: #49 in FY2022, #26 in FY2023, #83 in FY2024 and not on the FY2025 list; up 35 since FY2020.
62	UEI SY12CVN14QH8 Top agencies DOS (Department of State)	$20,080	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 22 since FY2020.
63	Bick Holdings Inc. Through Bick Group Inc. Top agencies DISA (Defense Information Systems Agency)	$19,948	<0.1%	Rank history: #28 in FY2022, #25 in FY2023, #76 in FY2024 and not on the FY2025 list; down 26 since FY2020.
64	Agape Encounters, LLC Top agencies DOI (Department of the Interior)	$18,824	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
65	Kirwan Mechanical Service, Inc. Top agencies DOJ (Department of Justice)	$18,000	<0.1%	Rank history: #69 in FY2022 and not on the FY2023–FY2025 lists; up 20 since FY2020.
66	Mckinstry Co LLC Top agencies DOI (Department of the Interior)	$17,867	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
67	Chase, Carson & White, L.L.C. Top agencies DOI (Department of the Interior)	$16,356	<0.1%	Rank history: #74 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
68	Connecticut Boiler Repair and Manufacturing Co., Incorporated Top agencies Navy (Department of the Navy)	$15,758	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
69	Termotecnica Cavatton SRL Top agencies DOS (Department of State)	$14,930	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 39 since FY2020.
70	West Coast Mechanical Group LLC Top agencies DOI (Department of the Interior)	$14,400	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
71	Schneider Electric Buildings Americas Inc. Top agencies USDA (Department of Agriculture)	$14,188	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
72	SOC Francaise Foyers Economiques Top agencies DOS (Department of State)	$13,341	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 22 since FY2020.
73	Chauffage Eylenbosch, Anc. ETS - Eylenbosch Verwarming, OPV Top agencies DOS (Department of State)	$12,570	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
74	Flowsense, LLC Top agencies HHS (Department of Health and Human Services)	$11,727	<0.1%	Rank history: #61 in FY2022 and not on the FY2023–FY2025 lists; up 14 since FY2020.
75	Advanced Services Heating & Cooling, Inc. Top agencies DOI (Department of the Interior)	$11,445	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
76	Bry-Air, Inc. Top agencies DOI (Department of the Interior)	$10,867	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
77	Comin Khmere Company Limited Top agencies DOS (Department of State)	$10,854	<0.1%	Rank history: #68 in FY2022 and not on the FY2023–FY2025 lists; up 18 since FY2020.
78	C.E D.impianti Societa A Responsabilita Limitata Top agencies DOS (Department of State)	$10,810	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
79	Clean Harbors Inc Through Clean Harbors Environmental Services Inc. Top agencies DHS (Department of Homeland Security)	$10,716	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
80	Peterson Refrigeration & Appliance Inc. Top agencies DOI (Department of the Interior)	$10,318	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
81	West Electric & Machine Co., Inc. Top agencies DOJ (Department of Justice)	$8,884	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
82	Performance Automation Solutions, Inc. Top agencies DOI (Department of the Interior)	$6,654	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
83	Daikin Applied Americas Inc Top agencies Army (Department of the Army)	$5,634	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 43 since FY2020.
84	EMCOR Group, Inc. Through Fluidics Inc. Top agencies Treasury (Department of the Treasury)	$763	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 63 since FY2020.

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 $84.8 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 2021 ran Oct 1, 2020 – Sep 30, 2021. 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 FY2020. "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 FY2020 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.

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