Top 28 Contractors in PSC Z1PD: Maintenance of Waste Treatment and Storage Facilities, FY2025

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Amentum Holdings, Inc. Through Central Plateau Cleanup Company, LLC Top agencies DOE (Department of Energy) Navy (Department of the Navy)	$558,409,060	93.5%	Rank history: not on the FY2021 list; up 1 since FY2024.
2	Perc Water Corporation Top agencies Navy (Department of the Navy)	$6,564,822	1.1%	Rank history: #2 in FY2021; up 2 since FY2024.
3	Bhate Environmental Associates, Inc. Top agencies USAF (Department of the Air Force)	$4,723,289	0.8%	Rank history: not on the FY2021 list; unchanged since FY2024.
4	Ecodit LLC Top agencies USAID (US Agency for International Development)	$2,400,000	0.4%	Rank history: #3 in FY2021; up 1 since FY2024.
5	City of Alexandria Virginia Sanitation Authority Top agencies WHS (DOD Washington Headquarters Service)	$244,011	<0.1%	Rank history: not on the FY2021 list; up 3 since FY2024.
6	Kgjj Engineering Solutions, LLC Top agencies Navy (Department of the Navy)	$180,567	<0.1%	Rank history: not on the FY2021 list; up 1 since FY2024.
7	CPS Building Services Limited Top agencies USAF (Department of the Air Force)	$134,837	<0.1%	Rank history: not on the FY2021 list; new, not ranked in FY2024.
8	Reagent World Inc Top agencies DOI (Department of the Interior)	$89,750	<0.1%	Rank history: not on the FY2021 list; new, not ranked in FY2024.
9	Lissi Gebhardt Spezialtransporte-Umweltschutz GMBH Top agencies Army (Department of the Army)	$87,258	<0.1%	Rank history: not on the FY2021 list; new, not ranked in FY2024.
10	Kobakyu, K.K. Top agencies Army (Department of the Army)	$60,257	<0.1%	Rank history: #14 in FY2021; up 1 since FY2024.
11	Broadview Waste Solutions, Inc. Top agencies HHS (Department of Health and Human Services)	$54,432	<0.1%	Rank history: not on the FY2021 list; new, not ranked in FY2024.
12	Clivus Multrum, Inc. Top agencies USDA (Department of Agriculture)	$53,592	<0.1%	Rank history: not on the FY2021 list; new, not ranked in FY2024.
13	Kotobuki Kankyoh Kizai Co.,Ltd. Top agencies Navy (Department of the Navy)	$48,665	<0.1%	Rank history: #11 in FY2021; up 1 since FY2024.
14	American Engineering Corporation Top agencies Navy (Department of the Navy)	$39,321	<0.1%	Rank history: not on the FY2021 list; new, not ranked in FY2024.
15	Metro-Ag Waste Injection Systems, Inc. Top agencies USAF (Department of the Air Force)	$39,312	<0.1%	Rank history: not on the FY2021 list; unchanged since FY2024.
16	Allegheny Site Management, Inc. Top agencies USDA (Department of Agriculture)	$34,704	<0.1%	Rank history: not on the FY2021 list; new, not ranked in FY2024.
17	Spectrum Environmental Services, Inc. Top agencies VA (Department of Veterans Affairs)	$27,950	<0.1%	Rank history: not on the FY2021 list; new, not ranked in FY2024.
18	Krätz GMBH Top agencies Army (Department of the Army)	$27,657	<0.1%	Rank history: #18 in FY2021; returned, not ranked in FY2024 but on an earlier list.
19	Dead River Company, LLC Top agencies DOI (Department of the Interior)	$26,900	<0.1%	Rank history: not on the FY2021 list; new, not ranked in FY2024.
20	Good Shepherd Septic Service Inc. Top agencies HHS (Department of Health and Human Services)	$22,680	<0.1%	Rank history: not on the FY2021 list; new, not ranked in FY2024.
21	Sterileco LLC Top agencies DOI (Department of the Interior)	$14,000	<0.1%	Rank history: not on the FY2021 list; new, not ranked in FY2024.
22	Applied Industrial Systems LLC Top agencies DOI (Department of the Interior)	$13,541	<0.1%	Rank history: not on the FY2021 list; new, not ranked in FY2024.
23	Waste Management of New Jersey Inc. Through Waste Management Collection and Recycling Inc. Top agencies DHS (Department of Homeland Security)	$13,331	<0.1%	Rank history: not on the FY2021 list; new, not ranked in FY2024.
24	Endicott Construction LLC Top agencies USDA (Department of Agriculture)	$12,024	<0.1%	Rank history: not on the FY2021 list; down 2 since FY2024.
25	Innovative Measuring Systems, Inc. Top agencies Army (Department of the Army)	$10,000	<0.1%	Rank history: #21 in FY2021; down 7 since FY2024.
26	Ready Freddy, Inc. Top agencies DOI (Department of the Interior)	$9,600	<0.1%	Rank history: not on the FY2021 list; new, not ranked in FY2024.
27	Reworld Holding Corporation Top agencies DOJ (Department of Justice)	$4,139	<0.1%	Rank history: not on the FY2021 list; new, not ranked in FY2024.
28	Agri-Cycle Energy LLC Top agencies DOJ (Department of Justice)	$2,435	<0.1%	Rank history: not on the FY2021 list; down 4 since FY2024.

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 $597 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.

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