Top 85 Contractors in PSC Z1NZ: Maintenance of Other Utilities, Jul 2025–Jun 2026

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Advanced Management Group L.L.C. Top agencies USAF (Department of the Air Force)	$4,112,983	11.2%	Rank history: not on the FY2021–FY2024 lists and #1 in FY2025; new, not ranked in Jul 2024–Jun 2025.
2	Johnson Controls Inc Through Johnson Controls Fire Protection LP Top agencies Navy (Department of the Navy)	$3,297,586	9.0%	Rank history: not on the FY2021–FY2024 lists and #2 in FY2025; new, not ranked in Jul 2024–Jun 2025.
3	Edco Disposal Corp Top agencies Navy (Department of the Navy)	$2,587,464	7.1%	Rank history: not on the FY2021–FY2024 lists and #3 in FY2025; new, not ranked in Jul 2024–Jun 2025.
4	Witco Industries Ltd. Top agencies USAF (Department of the Air Force)	$2,436,730	6.6%	Rank history: not on the FY2021–FY2024 lists and #29 in FY2025; new, not ranked in Jul 2024–Jun 2025.
5	Elcon Enterprises Inc. Top agencies National Gallery of Art	$1,651,862	4.5%	Rank history: not on the FY2021–FY2022 lists, #18 in FY2023, #6 in FY2024 and #5 in FY2025; down 3 since Jul 2024–Jun 2025.
6	Synergy Electric Company, Inc. Top agencies Navy (Department of the Navy)	$1,577,714	4.3%	Rank history: not on the FY2021 list, #4 in FY2022, #26 in FY2023, not on the FY2024 list and #9 in FY2025; new, not ranked in Jul 2024–Jun 2025.
7	Sernotti Electrical Services LLC Top agencies Navy (Department of the Navy)	$1,542,215	4.2%	Rank history: not on the FY2021 list, #19 in FY2022, #9 in FY2023, #3 in FY2024 and #6 in FY2025; down 4 since Jul 2024–Jun 2025.
8	Toshiba Corporation Top agencies Navy (Department of the Navy)	$1,492,046	4.1%	Rank history: #15 in FY2021, #17 in FY2022, #23 in FY2023, #4 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
9	American Engineering Corporation Top agencies Navy (Department of the Navy)	$1,216,420	3.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
10	Sociedad Espanola De Montajes Industriales SA Top agencies Navy (Department of the Navy)	$1,079,336	2.9%	Rank history: not on the FY2021–FY2024 lists and #10 in FY2025; new, not ranked in Jul 2024–Jun 2025.
11	Souza Construction, Inc. Top agencies Navy (Department of the Navy)	$914,562	2.5%	Rank history: not on the FY2021–FY2022 lists, #1 in FY2023, not on the FY2024 list and #12 in FY2025; new, not ranked in Jul 2024–Jun 2025.
12	Skoda Contracting Co Top agencies Army (Department of the Army)	$868,671	2.4%	Rank history: not on the FY2021–FY2024 lists and #8 in FY2025; down 4 since Jul 2024–Jun 2025.
13	Mikocorp LLC Top agencies Army (Department of the Army)	$840,811	2.3%	Rank history: not on the FY2021–FY2024 lists and #14 in FY2025; new, not ranked in Jul 2024–Jun 2025.
14	Coho Technology Solutions, LLC Top agencies Navy (Department of the Navy)	$766,314	2.1%	Rank history: not on the FY2021–FY2024 lists and #15 in FY2025; new, not ranked in Jul 2024–Jun 2025.
15	KBR Wyle Services LLC Through KBR Services, LLC Top agencies Navy (Department of the Navy)	$738,543	2.0%	Rank history: not on the FY2021–FY2024 lists and #16 in FY2025; new, not ranked in Jul 2024–Jun 2025.
16	Panacea Construction Group LLC Top agencies USAF (Department of the Air Force)	$738,224	2.0%	Rank history: not on the FY2021–FY2024 lists and #13 in FY2025; down 9 since Jul 2024–Jun 2025.
17	Otis Elevator Company Top agencies USAF (Department of the Air Force)	$623,145	1.7%	Rank history: not on the FY2021–FY2022 lists, #33 in FY2023, #24 in FY2024 and #26 in FY2025; up 2 since Jul 2024–Jun 2025.
18	Elrim Construction Co., Ltd. Top agencies Army (Department of the Army)	$589,396	1.6%	Rank history: not on the FY2021–FY2024 lists and #20 in FY2025; new, not ranked in Jul 2024–Jun 2025.
19	Kgjj Engineering Solutions, LLC Top agencies Navy (Department of the Navy)	$534,142	1.5%	Rank history: not on the FY2021–FY2023 lists, #16 in FY2024 and #22 in FY2025; down 6 since Jul 2024–Jun 2025.
20	Municipal Base Services LLC Top agencies DHA (Defense Health Agency) Navy (Department of the Navy)	$526,057	1.4%	Rank history: not on the FY2021–FY2022 lists, #19 in FY2023, #10 in FY2024 and #19 in FY2025; down 9 since Jul 2024–Jun 2025.
21	Tsontos, Michael M., S.A. Top agencies Navy (Department of the Navy)	$474,475	1.3%	Rank history: #93 in FY2021, #58 in FY2022, #46 in FY2023, not on the FY2024 list and #23 in FY2025; new, not ranked in Jul 2024–Jun 2025.
22	Glen / Mar Construction, Inc. Through Glen Mar-Hensel Phelps Top agencies Navy (Department of the Navy)	$466,892	1.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
23	Plumas-Sierra Rural Electric Co-Operative Top agencies Army (Department of the Army)	$434,000	1.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
24	Core Contracting Group Top agencies DOI (Department of the Interior)	$369,040	1.0%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
25	Cayuse Federal Services LLC Top agencies Navy (Department of the Navy)	$358,983	1.0%	Rank history: not on the FY2021–FY2024 lists and #28 in FY2025; down 4 since Jul 2024–Jun 2025.
26	Pittman Consulting Group, LLC Top agencies Army (Department of the Army)	$280,340	0.8%	Rank history: #36 in FY2021, #45 in FY2022, #42 in FY2023, #42 in FY2024 and #18 in FY2025; down 8 since Jul 2024–Jun 2025.
27	Northeast Generator, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$244,633	0.7%	Rank history: not on the FY2021–FY2024 lists and #33 in FY2025; up 2 since Jul 2024–Jun 2025.
28	Eiffage Infraestructuras Sau Top agencies USAF (Department of the Air Force)	$221,534	0.6%	Rank history: not on the FY2021–FY2024 lists and #31 in FY2025; new, not ranked in Jul 2024–Jun 2025.
29	Hampton Roads Mechanical of Virginia, LLC Top agencies Navy (Department of the Navy)	$211,599	0.6%	Rank history: #17 in FY2021, #20 in FY2022, #27 in FY2023, not on the FY2024 list and #48 in FY2025; new, not ranked in Jul 2024–Jun 2025.
30	Genserve LLC Top agencies Army (Department of the Army)	$193,312	0.5%	Rank history: not on the FY2021–FY2023 lists, #20 in FY2024 and #35 in FY2025; down 16 since Jul 2024–Jun 2025.
31	Islands Mechanical Contractor, Inc. Top agencies Navy (Department of the Navy)	$184,183	0.5%	Rank history: not on the FY2021 list, #32 in FY2022, not on the FY2023 list, #77 in FY2024 and #36 in FY2025; up 52 since Jul 2024–Jun 2025.
32	Yeajin E&C Co.,Ltd. Top agencies Army (Department of the Army)	$182,256	0.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
33	Raiden Co., Ltd. Top agencies Army (Department of the Army)	$131,303	0.4%	Rank history: not on the FY2021–FY2024 lists and #52 in FY2025; new, not ranked in Jul 2024–Jun 2025.
34	Brown Electrical Services, LLC Top agencies OPM (Office of Personnel Management)	$125,000	0.3%	Rank history: not on the FY2021–FY2023 lists, #38 in FY2024 and #41 in FY2025; up 2 since Jul 2024–Jun 2025.
35	Geumjang Construction Co.,Ltd Top agencies Army (Department of the Army)	$116,420	0.3%	Rank history: not on the FY2021–FY2024 lists and #11 in FY2025; down 29 since Jul 2024–Jun 2025.
36	Veteran Elevated Solutions, LLC Top agencies VA (Department of Veterans Affairs)	$114,240	0.3%	Rank history: not on the FY2021–FY2024 lists and #43 in FY2025; up 4 since Jul 2024–Jun 2025.
37	TOA Oil Kogyosho Co., Ltd Top agencies Army (Department of the Army)	$113,050	0.3%	Rank history: not on the FY2021–FY2024 lists and #37 in FY2025; down 7 since Jul 2024–Jun 2025.
38	Greenwood Contracting, Inc. Top agencies USAF (Department of the Air Force)	$95,000	0.3%	Rank history: not on the FY2021–FY2024 lists and #45 in FY2025; new, not ranked in Jul 2024–Jun 2025.
39	Porr Government Services Italy SRL Top agencies Army (Department of the Army)	$94,891	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
40	E2-N2 JV, LLC Top agencies Navy (Department of the Navy)	$81,447	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
41	Nihon Highway Service Co.,Ltd. Top agencies Army (Department of the Army)	$76,442	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
42	Avg-Consulting-Sarl Top agencies DOS (Department of State)	$75,396	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
43	Power Mechanical Inc. Top agencies DHS (Department of Homeland Security)	$71,350	0.2%	Rank history: not on the FY2021–FY2024 lists and #51 in FY2025; new, not ranked in Jul 2024–Jun 2025.
44	Jordan Elevator Overseas Ltd. Co. Top agencies DOS (Department of State)	$62,147	0.2%	Rank history: not on the FY2021–FY2023 lists, #57 in FY2024 and #55 in FY2025; up 11 since Jul 2024–Jun 2025.
45	AOS Services Inc. Top agencies Navy (Department of the Navy)	$59,957	0.2%	Rank history: not on the FY2021–FY2024 lists and #54 in FY2025; new, not ranked in Jul 2024–Jun 2025.
46	Johnson Controls Federal Systems, LLC Top agencies DOS (Department of State)	$59,606	0.2%	Rank history: not on the FY2021–FY2023 lists, #56 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
47	Pacific Place Services LLC Top agencies DOS (Department of State)	$56,700	0.2%	Rank history: not on the FY2021 list, #83 in FY2022, #70 in FY2023, #37 in FY2024 and #56 in FY2025; down 8 since Jul 2024–Jun 2025.
48	SMT Construction PVT Ltd Top agencies DOS (Department of State)	$56,023	0.2%	Rank history: not on the FY2021–FY2024 lists and #57 in FY2025; new, not ranked in Jul 2024–Jun 2025.
49	Salish Construction Co Top agencies Army (Department of the Army)	$54,907	0.1%	Rank history: not on the FY2021–FY2024 lists and #91 in FY2025; up 44 since Jul 2024–Jun 2025.
50	Mechanical Resources Incorporated Top agencies Navy (Department of the Navy)	$49,645	0.1%	Rank history: #71 in FY2021, not on the FY2022–FY2024 lists and #59 in FY2025; new, not ranked in Jul 2024–Jun 2025.
51	United Rentals (North America), Inc. Top agencies Army (Department of the Army)	$47,080	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
52	Energy Management Technologies, LLC Top agencies Army (Department of the Army)	$47,080	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
53	Allcom Global Services Inc. Through Strantech LLC Top agencies OPM (Office of Personnel Management)	$45,449	0.1%	Rank history: not on the FY2021–FY2023 lists, #60 in FY2024 and #62 in FY2025; up 11 since Jul 2024–Jun 2025.
54	Wadsworth Builders Co Inc. Top agencies USAF (Department of the Air Force)	$37,811	0.1%	Rank history: not on the FY2021–FY2023 lists, #5 in FY2024 and #66 in FY2025; down 49 since Jul 2024–Jun 2025.
55	Johnson Controls Building Automation Systems, LLC Top agencies DOS (Department of State)	$36,097	0.1%	Rank history: not on the FY2021–FY2023 lists, #41 in FY2024 and #50 in FY2025; down 22 since Jul 2024–Jun 2025.
56	Kesz Ipari Technologiak Kft. Top agencies DOS (Department of State)	$35,177	0.1%	Rank history: not on the FY2021–FY2022 lists, #87 in FY2023, #66 in FY2024 and #67 in FY2025; up 14 since Jul 2024–Jun 2025.
57	Miad Holdings LLC Top agencies DHS (Department of Homeland Security)	$34,633	0.1%	Rank history: not on the FY2021–FY2024 lists and #69 in FY2025; new, not ranked in Jul 2024–Jun 2025.
58	Edilem S.R.L. Top agencies Navy (Department of the Navy)	$34,557	0.1%	Rank history: not on the FY2021–FY2024 lists and #70 in FY2025; new, not ranked in Jul 2024–Jun 2025.
59	Omniverter Inc. Top agencies DOS (Department of State)	$34,450	0.1%	Rank history: #84 in FY2021, not on the FY2022 list, #98 in FY2023, #82 in FY2024 and #58 in FY2025; up 19 since Jul 2024–Jun 2025.
60	Infranergy LLC Top agencies DOS (Department of State)	$32,918	0.1%	Rank history: not on the FY2021–FY2024 lists and #71 in FY2025; up 9 since Jul 2024–Jun 2025.
61	Trane Indonesia, PT Top agencies DOS (Department of State)	$30,000	0.1%	Rank history: not on the FY2021–FY2024 lists and #72 in FY2025; new, not ranked in Jul 2024–Jun 2025.
62	Cmip LLC Top agencies DHS (Department of Homeland Security)	$29,900	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
63	Spring Fountain Studios LLC Top agencies Army (Department of the Army)	$25,500	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
64	Zina Logistique Services SARL Top agencies DOS (Department of State)	$23,569	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
65	Mergent Global Services Limited Liability Company Top agencies DOS (Department of State)	$21,990	0.1%	Rank history: not on the FY2021–FY2024 lists and #80 in FY2025; up 12 since Jul 2024–Jun 2025.
66	Wireless Network Group, Inc. Top agencies Army (Department of the Army)	$21,530	0.1%	Rank history: not on the FY2021–FY2023 lists, #87 in FY2024 and #89 in FY2025; up 26 since Jul 2024–Jun 2025.
67	Brothers Mechanical Services LLC Top agencies CFTC (Commodity Futures Trading Commission)	$19,889	0.1%	Rank history: not on the FY2021–FY2023 lists, #74 in FY2024 and #92 in FY2025; up 27 since Jul 2024–Jun 2025.
68	Horizon Solution Company Top agencies Army (Department of the Army)	$18,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #84 in FY2025; new, not ranked in Jul 2024–Jun 2025.
69	Joe Powell & Associates Inc. Top agencies Commerce (Department of Commerce)	$17,690	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
70	Coastal Distribution Contractors Inc. Top agencies Navy (Department of the Navy)	$17,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #94 in FY2025; up 26 since Jul 2024–Jun 2025.
71	Amentum Holdings, Inc. Through Amentum Technology, Inc. Top agencies Navy (Department of the Navy)	$14,162	<0.1%	Rank history: not on the FY2021–FY2024 lists and #4 in FY2025; down 70 since Jul 2024–Jun 2025.
72	Kone Inc Top agencies Army (Department of the Army)	$13,296	<0.1%	Rank history: not on the FY2021–FY2024 lists and #85 in FY2025; new, not ranked in Jul 2024–Jun 2025.
73	Elevert Corporation Company Limited Top agencies DOS (Department of State)	$13,209	<0.1%	Rank history: not on the FY2021–FY2024 lists and #86 in FY2025; new, not ranked in Jul 2024–Jun 2025.
74	GKG Contractors LLC Top agencies Navy (Department of the Navy)	$12,171	<0.1%	Rank history: not on the FY2021–FY2024 lists and #49 in FY2025; down 22 since Jul 2024–Jun 2025.
75	Tacoma Diesel and Equipment, Inc. Top agencies DHS (Department of Homeland Security)	$11,390	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
76	Chugach Solutions Enterprise, LLC Top agencies Navy (Department of the Navy)	$10,695	<0.1%	Rank history: not on the FY2021–FY2023 lists, #44 in FY2024 and #90 in FY2025; down 34 since Jul 2024–Jun 2025.
77	Schindler Elevator Corporation Top agencies Army (Department of the Army)	$9,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #93 in FY2025; new, not ranked in Jul 2024–Jun 2025.
78	Cummins, Inc. Top agencies National Gallery of Art	$8,899	<0.1%	Rank history: not on the FY2021 list, #61 in FY2022, #58 in FY2023, #40 in FY2024 and #40 in FY2025; up 12 since Jul 2024–Jun 2025.
79	HQE Systems Inc. Top agencies USAF (Department of the Air Force)	$8,190	<0.1%	Rank history: not on the FY2021–FY2023 lists, #76 in FY2024 and #75 in FY2025; down 14 since Jul 2024–Jun 2025.
80	Trane Canada ULC Top agencies DOS (Department of State)	$8,005	<0.1%	Rank history: not on the FY2021–FY2023 lists, #89 in FY2024 and #97 in FY2025; up 19 since Jul 2024–Jun 2025.
81	Ferreteria Rota SL Top agencies Navy (Department of the Navy)	$7,989	<0.1%	Rank history: not on the FY2021–FY2024 lists and #98 in FY2025; up 19 since Jul 2024–Jun 2025.
82	Defense Base Services, LLC Top agencies Navy (Department of the Navy)	$7,132	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 24 since Jul 2024–Jun 2025.
83	Virginia State Police Top agencies Commerce (Department of Commerce)	$6,000	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
84	VA Department of Transportation Through Virginia State Police Top agencies Commerce (Department of Commerce)	$5,600	<0.1%	Rank history: not on the FY2021–FY2024 lists and #100 in FY2025; new, not ranked in Jul 2024–Jun 2025.
85	Tecc Corporation Top agencies Navy (Department of the Navy)	$455	<0.1%	Rank history: not on the FY2021–FY2024 lists and #47 in FY2025; down 37 since Jul 2024–Jun 2025.

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 $36.6 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