Top 88 Contractors in PSC N045: Installation of Equipment: Plumbing, Heating, and Waste Disposal Equipment, Jul 2025–Jun 2026

Name: Top 88 Contractors in PSC N045: Installation of Equipment: Plumbing, Heating, and Waste Disposal 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 74% of PSC N045 contract dollars from July 2025 through June 2026

Contract obligations: $34,179,871 Net of deobligations, by contracts coded PSC N045
Contractors: 95 Parent companies with an obligation
Largest contractor: MLU Services, LLC $12.4 million, 26.5% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 88 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	MLU Services, LLC Top agencies DHS (Department of Homeland Security)	$12,380,589	26.5%	Rank history: #5 in FY2021, #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since Jul 2024–Jun 2025.
2	T.C.I. Construction & Management Co. Inc. Top agencies VA (Department of Veterans Affairs)	$7,894,000	16.9%	Rank history: not on the FY2021–FY2024 lists and #3 in FY2025; new, not ranked in Jul 2024–Jun 2025.
3	Skytek LLC Top agencies VA (Department of Veterans Affairs)	$5,434,406	11.6%	Rank history: not on the FY2021–FY2024 lists and #4 in FY2025; new, not ranked in Jul 2024–Jun 2025.
4	Mvl-Bromgrove JV LLC Top agencies Navy (Department of the Navy)	$1,871,302	4.0%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
5	Carver Construction, LLC Top agencies USDA (Department of Agriculture)	$1,785,335	3.8%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
6	Ahtna Infrastructure & Technologies LLC Top agencies DOT (Department of Transportation)	$1,375,545	2.9%	Rank history: not on the FY2021–FY2024 lists and #8 in FY2025; new, not ranked in Jul 2024–Jun 2025.
7	Argus CJW JV 3 LLC Top agencies Navy (Department of the Navy)	$1,083,345	2.3%	Rank history: not on the FY2021 list, #19 in FY2022, #8 in FY2023, not on the FY2024 list and #10 in FY2025; new, not ranked in Jul 2024–Jun 2025.
8	Results Sales & Service, L.L.C. Top agencies VA (Department of Veterans Affairs)	$863,910	1.9%	Rank history: not on the FY2021–FY2024 lists and #12 in FY2025; new, not ranked in Jul 2024–Jun 2025.
9	Prow'ess Construction Corp. Top agencies DOT (Department of Transportation)	$831,775	1.8%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
10	Hamilton Pacific Chamberlain LLC Top agencies VA (Department of Veterans Affairs)	$812,243	1.7%	Rank history: not on the FY2021–FY2024 lists and #13 in FY2025; new, not ranked in Jul 2024–Jun 2025.
11	Hunatek Federal Services, LLC Top agencies DHS (Department of Homeland Security)	$774,965	1.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
12	Tj&B Air Conditioning and Electric, LLC Top agencies DOT (Department of Transportation)	$661,423	1.4%	Rank history: not on the FY2021 list, #34 in FY2022, #9 in FY2023, #2 in FY2024 and #14 in FY2025; down 4 since Jul 2024–Jun 2025.
13	Air Rite Hvac Inc. Top agencies USAF (Department of the Air Force)	$524,192	1.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
14	Arktic Temp of Mississippi, LLC Top agencies USDA (Department of Agriculture)	$469,755	1.0%	Rank history: not on the FY2021–FY2024 lists and #17 in FY2025; new, not ranked in Jul 2024–Jun 2025.
15	JNB Services LLC Top agencies DOT (Department of Transportation)	$419,970	0.9%	Rank history: not on the FY2021–FY2024 lists and #19 in FY2025; new, not ranked in Jul 2024–Jun 2025.
16	Aktarius LLC Top agencies Navy (Department of the Navy)	$403,923	0.9%	Rank history: not on the FY2021–FY2024 lists and #18 in FY2025; new, not ranked in Jul 2024–Jun 2025.
17	MGI Inc. Top agencies VA (Department of Veterans Affairs)	$398,518	0.9%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
18	IBS L.l.c Top agencies DOT (Department of Transportation)	$382,973	0.8%	Rank history: not on the FY2021–FY2023 lists, #13 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
19	Puyenpa Technologies LLC Through Puyenpa Construction, LLC Top agencies Navy (Department of the Navy)	$352,048	0.8%	Rank history: not on the FY2021–FY2024 lists and #20 in FY2025; new, not ranked in Jul 2024–Jun 2025.
20	National Native American Construction, Inc. Top agencies USDA (Department of Agriculture)	$302,810	0.6%	Rank history: not on the FY2021–FY2024 lists and #21 in FY2025; new, not ranked in Jul 2024–Jun 2025.
21	Mule Engineering, Inc. Top agencies VA (Department of Veterans Affairs)	$292,997	0.6%	Rank history: not on the FY2021 list, #7 in FY2022, not on the FY2023–FY2024 lists and #15 in FY2025; down 8 since Jul 2024–Jun 2025.
22	CMP Commercial Construction Inc Top agencies DOT (Department of Transportation)	$283,527	0.6%	Rank history: not on the FY2021–FY2023 lists, #6 in FY2024 and #7 in FY2025; down 16 since Jul 2024–Jun 2025.
23	Rashad AC and Heating LLC Top agencies USAF (Department of the Air Force)	$239,672	0.5%	Rank history: not on the FY2021–FY2023 lists, #41 in FY2024 and #23 in FY2025; up 25 since Jul 2024–Jun 2025.
24	Borja Engineering & Construction, Inc. Top agencies VA (Department of Veterans Affairs)	$206,520	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
25	Sterileco LLC Top agencies DOI (Department of the Interior)	$193,833	0.4%	Rank history: not on the FY2021–FY2023 lists, #21 in FY2024 and #24 in FY2025; down 1 since Jul 2024–Jun 2025.
26	Utility Systems Solutions, Inc. Top agencies VA (Department of Veterans Affairs)	$193,548	0.4%	Rank history: not on the FY2021–FY2024 lists and #25 in FY2025; new, not ranked in Jul 2024–Jun 2025.
27	Ameritech Contracting LLC Top agencies VA (Department of Veterans Affairs) DOI (Department of the Interior)	$161,398	0.3%	Rank history: not on the FY2021–FY2023 lists, #5 in FY2024 and #43 in FY2025; down 20 since Jul 2024–Jun 2025.
28	Nodak Electric & Construction, Inc. Top agencies USAF (Department of the Air Force) DOI (Department of the Interior)	$158,108	0.3%	Rank history: not on the FY2021–FY2024 lists and #9 in FY2025; down 18 since Jul 2024–Jun 2025.
29	Austability PTY Ltd Top agencies DOS (Department of State)	$146,790	0.3%	Rank history: not on the FY2021–FY2024 lists and #28 in FY2025; new, not ranked in Jul 2024–Jun 2025.
30	Souza Construction, Inc. Top agencies DOI (Department of the Interior) USDA (Department of Agriculture)	$146,345	0.3%	Rank history: not on the FY2021–FY2024 lists and #37 in FY2025; new, not ranked in Jul 2024–Jun 2025.
31	Scalfo Electric Inc. Top agencies DOJ (Department of Justice)	$133,722	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
32	ATZ Solution LLC Top agencies USDA (Department of Agriculture)	$87,962	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
33	Enfield Enterprises LLC Top agencies DOT (Department of Transportation)	$80,222	0.2%	Rank history: not on the FY2021–FY2024 lists and #6 in FY2025; down 28 since Jul 2024–Jun 2025.
34	Total Solution LLC Top agencies DOI (Department of the Interior)	$79,880	0.2%	Rank history: not on the FY2021–FY2023 lists, #44 in FY2024 and not on the FY2025 list; up 18 since Jul 2024–Jun 2025.
35	Mahoneys Services Inc. Top agencies USAF (Department of the Air Force)	$74,620	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
36	Avcor Construction LLC Top agencies DOT (Department of Transportation)	$71,413	0.2%	Rank history: not on the FY2021–FY2024 lists and #16 in FY2025; down 21 since Jul 2024–Jun 2025.
37	Future Controls, Inc. Top agencies DOT (Department of Transportation)	$69,000	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
38	Disabled Veterans Construction Inc. Top agencies USDA (Department of Agriculture)	$65,655	0.1%	Rank history: not on the FY2021–FY2024 lists and #38 in FY2025; new, not ranked in Jul 2024–Jun 2025.
39	Magnolia Plumbing, Inc. Top agencies DOI (Department of the Interior)	$65,350	0.1%	Rank history: not on the FY2021 list, #62 in FY2022, #38 in FY2023, #94 in FY2024 and #45 in FY2025; up 4 since Jul 2024–Jun 2025.
40	Infiniti Scope LLC Top agencies DOI (Department of the Interior) USDA (Department of Agriculture)	$57,050	0.1%	Rank history: not on the FY2021–FY2024 lists and #40 in FY2025; new, not ranked in Jul 2024–Jun 2025.
41	Therma Holdings LLC Through Yearout Mechanical, LLC / Dba: Welch's Boiler Service, LLC Top agencies DOI (Department of the Interior)	$50,362	0.1%	Rank history: not on the FY2021–FY2024 lists and #42 in FY2025; new, not ranked in Jul 2024–Jun 2025.
42	R.l. Hueston, LLC Top agencies DOI (Department of the Interior)	$45,371	0.1%	Rank history: not on the FY2021–FY2024 lists and #44 in FY2025; new, not ranked in Jul 2024–Jun 2025.
43	Elite Mechanical Services LLC Top agencies DOI (Department of the Interior)	$43,011	0.1%	Rank history: not on the FY2021–FY2023 lists, #27 in FY2024 and #93 in FY2025; down 10 since Jul 2024–Jun 2025.
44	Caliber Mechanical LLC Top agencies DOI (Department of the Interior)	$42,602	0.1%	Rank history: not on the FY2021–FY2024 lists and #46 in FY2025; new, not ranked in Jul 2024–Jun 2025.
45	Colonie Mechanical Contractors, Inc. Top agencies USAF (Department of the Air Force)	$38,800	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
46	Sippel Company LLC Top agencies DHS (Department of Homeland Security)	$33,700	0.1%	Rank history: not on the FY2021–FY2024 lists and #51 in FY2025; new, not ranked in Jul 2024–Jun 2025.
47	Agape Encounters, LLC Top agencies DOI (Department of the Interior)	$33,013	0.1%	Rank history: #84 in FY2021, #81 in FY2022, not on the FY2023–FY2024 lists and #59 in FY2025; new, not ranked in Jul 2024–Jun 2025.
48	Total Mechanical Services Inc. Top agencies DOT (Department of Transportation)	$32,327	0.1%	Rank history: not on the FY2021–FY2024 lists and #53 in FY2025; new, not ranked in Jul 2024–Jun 2025.
49	KB Standard LLC Top agencies VA (Department of Veterans Affairs)	$31,000	0.1%	Rank history: not on the FY2021–FY2024 lists and #54 in FY2025; new, not ranked in Jul 2024–Jun 2025.
50	Buckeye Elm Contracting LLC Top agencies USAF (Department of the Air Force)	$28,603	0.1%	Rank history: not on the FY2021–FY2024 lists and #56 in FY2025; new, not ranked in Jul 2024–Jun 2025.
51	Alaskan Drilling, LLC Top agencies USAF (Department of the Air Force)	$27,869	0.1%	Rank history: not on the FY2021–FY2024 lists and #57 in FY2025; new, not ranked in Jul 2024–Jun 2025.
52	Reagent World Inc Top agencies DOT (Department of Transportation)	$27,117	0.1%	Rank history: #31 in FY2021, #22 in FY2022, #46 in FY2023, #10 in FY2024 and not on the FY2025 list; down 38 since Jul 2024–Jun 2025.
53	Binair Asociados SL Top agencies DOS (Department of State)	$26,844	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
54	Northern Purchase Services, LLC Top agencies USDA (Department of Agriculture)	$24,762	0.1%	Rank history: not on the FY2021–FY2024 lists and #61 in FY2025; new, not ranked in Jul 2024–Jun 2025.
55	Nicolet Shores Plumbing Inc. Top agencies DHS (Department of Homeland Security)	$24,500	0.1%	Rank history: not on the FY2021–FY2024 lists and #62 in FY2025; new, not ranked in Jul 2024–Jun 2025.
56	DPK Services Inc Top agencies USDA (Department of Agriculture)	$21,575	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
57	Windsor Strategic Services LLC Top agencies DOI (Department of the Interior)	$21,262	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
58	FMS Provider LLC Top agencies DHS (Department of Homeland Security)	$19,876	<0.1%	Rank history: not on the FY2021–FY2023 lists, #71 in FY2024 and not on the FY2025 list; up 15 since Jul 2024–Jun 2025.
59	Del SUR Services, Inc. Top agencies Commerce (Department of Commerce)	$19,828	<0.1%	Rank history: not on the FY2021–FY2024 lists and #66 in FY2025; new, not ranked in Jul 2024–Jun 2025.
60	Sturm Heating & Air Conditioning, LLC Top agencies DOT (Department of Transportation)	$18,928	<0.1%	Rank history: not on the FY2021–FY2024 lists and #67 in FY2025; new, not ranked in Jul 2024–Jun 2025.
61	Arctic Slope Regional Corporation Through Asrc Prime Constructors, LLC Top agencies Army (Department of the Army)	$18,755	<0.1%	Rank history: not on the FY2021–FY2024 lists and #34 in FY2025; new, not ranked in Jul 2024–Jun 2025.
62	Brown Point Facility Management Solutions, LLC Top agencies DOI (Department of the Interior)	$18,575	<0.1%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
63	PHG Industries LLC Top agencies DOI (Department of the Interior)	$18,476	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
64	Mccray Group Ventures LLC Top agencies USDA (Department of Agriculture)	$17,727	<0.1%	Rank history: not on the FY2021–FY2024 lists and #69 in FY2025; new, not ranked in Jul 2024–Jun 2025.
65	Xeless Construction Top agencies DOS (Department of State)	$17,224	<0.1%	Rank history: not on the FY2021–FY2024 lists and #70 in FY2025; new, not ranked in Jul 2024–Jun 2025.
66	Generation Plumbing, L.L.C. Top agencies USDA (Department of Agriculture)	$16,870	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
67	Micah Property Management, LLC Top agencies DHS (Department of Homeland Security)	$15,450	<0.1%	Rank history: not on the FY2021–FY2024 lists and #74 in FY2025; new, not ranked in Jul 2024–Jun 2025.
68	G.e. Mechanical, LLC Top agencies DOJ (Department of Justice)	$15,450	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
69	Blakeman Plumbing & Heating, Inc. Top agencies DOI (Department of the Interior)	$15,270	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
70	David Raposa Top agencies Commerce (Department of Commerce)	$15,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #75 in FY2025; new, not ranked in Jul 2024–Jun 2025.
71	Atlas Contracting Group LLC Top agencies Navy (Department of the Navy)	$13,585	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
72	Tolin Mechanical Systems Company, LLC Top agencies DOT (Department of Transportation)	$11,306	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
73	Dunns Heating & Cooling LLC Top agencies DOI (Department of the Interior)	$10,950	<0.1%	Rank history: not on the FY2021–FY2024 lists and #81 in FY2025; new, not ranked in Jul 2024–Jun 2025.
74	Ama Diversified Construction Group Top agencies DOI (Department of the Interior)	$10,792	<0.1%	Rank history: not on the FY2021–FY2024 lists and #27 in FY2025; down 51 since Jul 2024–Jun 2025.
75	Oneill Contractors Inc. Top agencies Army (Department of the Army)	$10,679	<0.1%	Rank history: not on the FY2021 list, #15 in FY2022, not on the FY2023 list, #36 in FY2024 and not on the FY2025 list; down 31 since Jul 2024–Jun 2025.
76	Contego Environmental LLC Top agencies VA (Department of Veterans Affairs)	$9,072	<0.1%	Rank history: not on the FY2021–FY2023 lists, #3 in FY2024 and not on the FY2025 list; down 73 since Jul 2024–Jun 2025.
77	Kunj Construction Corporation Top agencies Navy (Department of the Navy)	$8,973	<0.1%	Rank history: not on the FY2021–FY2022 lists, #6 in FY2023, #33 in FY2024 and #85 in FY2025; down 40 since Jul 2024–Jun 2025.
78	Frawner Corporation Top agencies USAF (Department of the Air Force)	$7,250	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
79	Mather & Sons Pump Service, Inc. Top agencies DOI (Department of the Interior)	$6,980	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
80	Queen's Plumbing Corporation Top agencies DOI (Department of the Interior)	$6,800	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
81	Brian Medrain Top agencies USDA (Department of Agriculture)	$5,690	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
82	Millennium Park Plaza Associates S EN C. POR a. S.E. Top agencies DOJ (Department of Justice)	$4,237	<0.1%	Rank history: not on the FY2021–FY2024 lists and #90 in FY2025; new, not ranked in Jul 2024–Jun 2025.
83	Crowson Paint Contractors, Inc. Top agencies USAF (Department of the Air Force)	$3,600	<0.1%	Rank history: not on the FY2021–FY2024 lists and #91 in FY2025; new, not ranked in Jul 2024–Jun 2025.
84	Trane U.s. Inc. Top agencies DOI (Department of the Interior)	$3,440	<0.1%	Rank history: not on the FY2021–FY2023 lists, #16 in FY2024 and not on the FY2025 list; down 65 since Jul 2024–Jun 2025.
85	Alpine Heating & Sheetmetal LLC Top agencies DOI (Department of the Interior)	$3,262	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
86	Red J Environmental Corporation Top agencies USDA (Department of Agriculture)	$3,030	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
87	Dunbar Mechanical Contractors, LLC Top agencies VA (Department of Veterans Affairs)	$2,972	<0.1%	Rank history: not on the FY2021–FY2024 lists and #55 in FY2025; down 26 since Jul 2024–Jun 2025.
88	Katayama Shoji Inc. Top agencies USAF (Department of the Air Force)	$1,715	<0.1%	Rank history: not on the FY2021–FY2023 lists, #97 in FY2024 and #96 in FY2025; up 8 since Jul 2024–Jun 2025.

Show 63 more

88 of 95 contractors listed here. See the rest on GovTribe.

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 $46.7 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 N045 contractors in Jul 2025–Jun 2026?

1. MLU Services, LLC ($12.4M), 2. T.C.I. Construction & Management Co. Inc. ($7.89M), 3. Skytek LLC ($5.43M), 4. Mvl-Bromgrove JV LLC ($1.87M), 5. Carver Construction, LLC ($1.79M), 6. Ahtna Infrastructure & Technologies LLC ($1.38M), 7. Argus CJW JV 3 LLC ($1.08M), 8. Results Sales & Service, L.L.C. ($864K), 9. Prow'ess Construction Corp. ($832K), 10. Hamilton Pacific Chamberlain LLC ($812K).

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