Top 100 Contractors in PSC S222: Waste Treatment and Storage, FY2025

Name: Top 100 Contractors in PSC S222: Waste Treatment and Storage, FY2025
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe

The top 10 won 37% of FY2025 PSC S222 contract dollars

Contract obligations: $218,668,733 Net of deobligations, by contracts coded PSC S222
Contractors: 559 Parent companies with an obligation
Largest contractor: Clean Harbors Inc. $12.6 million, 5.2% of obligations
Data as of: Oct 23, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Clean Harbors Inc. Through Clean Harbors Environmental Services Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) EPA (Environmental Protection Agency)	$12,569,636	5.2%	Rank history: #10 in FY2021, #5 in FY2022, #1 in FY2023 and #1 in FY2024; unchanged since FY2024.
2	Tradebe Environmental Services, LLC 2 awardees, including Tradebe Treatment and Recycling, LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) USDA (Department of Agriculture)	$10,625,754	4.4%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2024; up 12 since FY2024.
3	Willow Environmental Inc. Top agencies DLA (Defense Logistics Agency)	$9,876,404	4.1%	Rank history: #5 in FY2021, #13 in FY2022, #7 in FY2023 and #9 in FY2024; up 6 since FY2024.
4	Horizon Environmental Services, Inc. Top agencies DLA (Defense Logistics Agency)	$9,162,640	3.8%	Rank history: #18 in FY2021, #22 in FY2022, #8 in FY2023 and #2 in FY2024; down 2 since FY2024.
5	C & C Environmental Inc. Top agencies DLA (Defense Logistics Agency)	$8,642,034	3.5%	Rank history: #13 in FY2021, #12 in FY2022, #10 in FY2023 and #11 in FY2024; up 6 since FY2024.
6	Republic Services Inc. 14 awardees, including ACV Environmental Services Inc., Republic Services of North Carolina LLC and Republic Services of Kentucky, LLC Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice) Army (Department of the Army)	$8,496,812	3.5%	Rank history: #65 in FY2021, #71 in FY2022, #97 in FY2023 and #5 in FY2024; down 1 since FY2024.
7	TRI-State Government Services Inc 2 awardees, including International Precision, Inc. Top agencies DLA (Defense Logistics Agency)	$8,111,719	3.3%	Rank history: #3 in FY2021, #7 in FY2022, #3 in FY2023 and #4 in FY2024; down 3 since FY2024.
8	Sued-Muell GMBH & Co. KG Fuer Abfalltransporte UND Sonderabfallbeseitigung Top agencies DLA (Defense Logistics Agency)	$7,972,792	3.3%	Rank history: #7 in FY2021, #10 in FY2022, #11 in FY2023 and #3 in FY2024; down 5 since FY2024.
9	Industrial Waste Utilization, LLC Top agencies DLA (Defense Logistics Agency) DOT (Department of Transportation)	$7,102,200	2.9%	Rank history: not on the FY2021–FY2024 lists; new.
10	Black Gold Industries Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$6,524,865	2.7%	Rank history: #1 in FY2021, #2 in FY2022, #6 in FY2023 and #8 in FY2024; down 2 since FY2024.
11	Advant-Edge Solutions of Middle Atlantic Inc. Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs) Navy (Department of the Navy)	$5,776,014	2.4%	Rank history: #22 in FY2021, #6 in FY2022, #12 in FY2023 and #6 in FY2024; down 5 since FY2024.
12	Nikken-Metawater JV Top agencies Navy (Department of the Navy)	$4,446,339	1.8%	Rank history: not on the FY2021–FY2023 lists and #18 in FY2024; up 6 since FY2024.
13	Earth Smart Environmental Solutions LLC Top agencies VA (Department of Veterans Affairs)	$4,237,310	1.7%	Rank history: #23 in FY2021, #17 in FY2022, #16 in FY2023 and #13 in FY2024; unchanged since FY2024.
14	Pacific Commercial Services, Inc. Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$4,190,057	1.7%	Rank history: #24 in FY2021, #26 in FY2022, #28 in FY2023 and #12 in FY2024; down 2 since FY2024.
15	Yamaki Co., Ltd. Top agencies Navy (Department of the Navy)	$4,161,211	1.7%	Rank history: #12 in FY2021, #11 in FY2022, #14 in FY2023 and #20 in FY2024; up 5 since FY2024.
16	Environmental Compliance Consultants, Inc. Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$3,792,133	1.6%	Rank history: #76 in FY2021, #78 in FY2022, #37 in FY2023 and #19 in FY2024; up 3 since FY2024.
17	Neie Medical Waste Services, LLC Top agencies VA (Department of Veterans Affairs)	$3,765,463	1.5%	Rank history: #9 in FY2021, #9 in FY2022, #13 in FY2023 and #16 in FY2024; down 1 since FY2024.
18	Landscape Management Systems Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$3,638,175	1.5%	Rank history: #14 in FY2021, #16 in FY2022, #23 in FY2023 and #17 in FY2024; down 1 since FY2024.
19	Marianas Gas Corp Top agencies DLA (Defense Logistics Agency)	$3,289,152	1.3%	Rank history: not on the FY2021–FY2022 lists, #17 in FY2023 and #15 in FY2024; down 4 since FY2024.
20	Seaon Environmental LLC Top agencies Navy (Department of the Navy)	$2,793,369	1.1%	Rank history: not on the FY2021 list, #73 in FY2022, #35 in FY2023 and #32 in FY2024; up 12 since FY2024.
21	Logex System International GMBH Top agencies DLA (Defense Logistics Agency)	$2,396,801	1.0%	Rank history: not on the FY2021–FY2023 lists and #44 in FY2024; up 23 since FY2024.
22	J&T Recycling Corporation Top agencies DLA (Defense Logistics Agency)	$2,335,165	1.0%	Rank history: #11 in FY2021, #15 in FY2022, #19 in FY2023 and #23 in FY2024; up 1 since FY2024.
23	NRC Environmental Services Inc. Top agencies DLA (Defense Logistics Agency)	$2,321,822	1.0%	Rank history: not on the FY2021–FY2023 lists and #38 in FY2024; up 15 since FY2024.
24	Noreas, Inc. Top agencies Navy (Department of the Navy)	$2,238,458	0.9%	Rank history: not on the FY2021–FY2024 lists; new.
25	Anchor Pacific Resource Management, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$2,156,733	0.9%	Rank history: not on the FY2021–FY2023 lists and #22 in FY2024; down 3 since FY2024.
26	Harsco Corporation Through AES Asset Acquisition Corporation Top agencies DLA (Defense Logistics Agency)	$2,079,842	0.9%	Rank history: not on the FY2021–FY2024 lists; up 106 since FY2024.
27	GS Environmental, Inc. Top agencies DLA (Defense Logistics Agency)	$1,989,594	0.8%	Rank history: #17 in FY2021, #23 in FY2022, #52 in FY2023 and #35 in FY2024; up 8 since FY2024.
28	Hamilton Alliance Inc. Top agencies VA (Department of Veterans Affairs)	$1,740,625	0.7%	Rank history: #26 in FY2021, #24 in FY2022, #18 in FY2023 and #27 in FY2024; down 1 since FY2024.
29	Aim Consulting, LLC Top agencies DHS (Department of Homeland Security)	$1,725,609	0.7%	Rank history: not on the FY2021–FY2024 lists; new.
30	Jfe-K Ryukyu Logistic JV Top agencies DLA (Defense Logistics Agency)	$1,687,481	0.7%	Rank history: #27 in FY2021, #1 in FY2022, #4 in FY2023 and #46 in FY2024; up 16 since FY2024.
31	Clean Earth Systems, Inc. Top agencies DLA (Defense Logistics Agency)	$1,641,611	0.7%	Rank history: #30 in FY2021, #27 in FY2022, #27 in FY2023 and #24 in FY2024; down 7 since FY2024.
32	Future Services General Trading & Contracting Co. Top agencies USAF (Department of the Air Force)	$1,631,250	0.7%	Rank history: not on the FY2021–FY2022 lists, #25 in FY2023 and #30 in FY2024; down 2 since FY2024.
33	Triumvirate Environmental, LLC 2 awardees, including West Central Environmental Corp. Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs)	$1,504,640	0.6%	Rank history: not on the FY2021–FY2024 lists; up 79 since FY2024.
34	Shimada Shokai Co., Ltd Top agencies DLA (Defense Logistics Agency)	$1,468,676	0.6%	Rank history: #28 in FY2021, #43 in FY2022, #43 in FY2023 and #50 in FY2024; up 16 since FY2024.
35	EWA Direction Inc. Top agencies VA (Department of Veterans Affairs)	$1,436,875	0.6%	Rank history: #78 in FY2021, not on the FY2022–FY2023 lists and #54 in FY2024; up 19 since FY2024.
36	Relife Recycling S.R.L. Top agencies DLA (Defense Logistics Agency)	$1,331,463	0.5%	Rank history: not on the FY2021–FY2022 lists, #33 in FY2023 and #34 in FY2024; down 2 since FY2024.
37	EDM Enterprises, LLC Top agencies VA (Department of Veterans Affairs)	$1,255,077	0.5%	Rank history: #61 in FY2021, #54 in FY2022, #29 in FY2023 and #28 in FY2024; down 9 since FY2024.
38	Stericycle Inc Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$1,218,670	0.5%	Rank history: not on the FY2021–FY2022 lists, #58 in FY2023 and #64 in FY2024; up 26 since FY2024.
39	ECO Energy Korea Co., Ltd Top agencies DLA (Defense Logistics Agency)	$1,186,628	0.5%	Rank history: not on the FY2021–FY2024 lists; up 82 since FY2024.
40	Remondis Industrie Service GMBH. Top agencies DLA (Defense Logistics Agency)	$1,150,770	0.5%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2023 and #45 in FY2024; up 5 since FY2024.
41	Smnc Properties, LLC Top agencies Army (Department of the Army)	$1,127,939	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
42	P.u. Septic Service, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$1,127,482	0.5%	Rank history: #34 in FY2021, #44 in FY2022, #39 in FY2023 and #41 in FY2024; down 1 since FY2024.
43	Seres Engineering & Services LLC Top agencies Army (Department of the Army)	$1,081,028	0.4%	Rank history: not on the FY2021–FY2022 lists, #42 in FY2023 and #37 in FY2024; down 6 since FY2024.
44	TD Environmental Inc. Top agencies DLA (Defense Logistics Agency)	$973,778	0.4%	Rank history: #29 in FY2021, #52 in FY2022, #53 in FY2023 and #48 in FY2024; up 4 since FY2024.
45	Onaka Gumi Co.,Ltd. Top agencies DLA (Defense Logistics Agency)	$971,499	0.4%	Rank history: #52 in FY2021, #57 in FY2022, #88 in FY2023 and #58 in FY2024; up 13 since FY2024.
46	Guahan Waste Control, Inc. Top agencies DLA (Defense Logistics Agency)	$921,385	0.4%	Rank history: #38 in FY2021, #39 in FY2022, #34 in FY2023 and #39 in FY2024; down 7 since FY2024.
47	Kanagawa Hoken Jigyousha Co.,Ltd. Top agencies Navy (Department of the Navy)	$919,672	0.4%	Rank history: not on the FY2021–FY2022 lists, #41 in FY2023 and #59 in FY2024; up 12 since FY2024.
48	JVM Construction Inc. Top agencies USAF (Department of the Air Force)	$857,075	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
49	Feyen's Arcade Pumping Service, LLC Top agencies Army (Department of the Army)	$850,218	0.3%	Rank history: #43 in FY2021, #19 in FY2022, #46 in FY2023 and #51 in FY2024; up 2 since FY2024.
50	Arcwood Environmental, LLC Top agencies DLA (Defense Logistics Agency) Commerce (Department of Commerce)	$791,311	0.3%	Rank history: not on the FY2021–FY2024 lists; up 54 since FY2024.
51	Best Choice Environmental Inc. Top agencies VA (Department of Veterans Affairs)	$738,370	0.3%	Rank history: not on the FY2021–FY2022 lists, #71 in FY2023 and #49 in FY2024; down 2 since FY2024.
52	Mabbett & Associates, Inc. Top agencies VA (Department of Veterans Affairs)	$709,371	0.3%	Rank history: #35 in FY2021, #32 in FY2022, #48 in FY2023 and not on the FY2024 list; returned.
53	Tether, Inc. Top agencies USAF (Department of the Air Force)	$706,755	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
54	Mission Contracting Inc. Top agencies Commerce (Department of Commerce)	$696,057	0.3%	Rank history: #50 in FY2021, #47 in FY2022, #61 in FY2023 and #56 in FY2024; up 2 since FY2024.
55	Veolia ES (UK) Limited Top agencies DLA (Defense Logistics Agency)	$681,924	0.3%	Rank history: not on the FY2021–FY2023 lists and #81 in FY2024; up 26 since FY2024.
56	Set the Standard, LLC Top agencies VA (Department of Veterans Affairs)	$668,350	0.3%	Rank history: #57 in FY2021, #45 in FY2022, #47 in FY2023 and not on the FY2024 list; returned.
57	Lucianos Excavation Inc. Top agencies Navy (Department of the Navy)	$645,526	0.3%	Rank history: not on the FY2021–FY2023 lists and #83 in FY2024; up 26 since FY2024.
58	Meltec, Ltd. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$614,353	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
59	North Mason Fiber Company Top agencies Navy (Department of the Navy)	$608,253	0.2%	Rank history: #73 in FY2021, #79 in FY2022 and not on the FY2023–FY2024 lists; up 48 since FY2024.
60	Sage, LLC Top agencies VA (Department of Veterans Affairs)	$580,042	0.2%	Rank history: not on the FY2021–FY2023 lists and #68 in FY2024; up 8 since FY2024.
61	R. & R. Environmental, Inc. Top agencies Army (Department of the Army)	$552,347	0.2%	Rank history: not on the FY2021 list, #91 in FY2022, #65 in FY2023 and not on the FY2024 list; up 42 since FY2024.
62	Pacific Coast Contracting Group Top agencies VA (Department of Veterans Affairs)	$550,000	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
63	Tad Environment Top agencies DLA (Defense Logistics Agency)	$530,870	0.2%	Rank history: #39 in FY2021, #34 in FY2022, #36 in FY2023 and #40 in FY2024; down 23 since FY2024.
64	Tri-County Recycling Inc. Top agencies VA (Department of Veterans Affairs)	$513,161	0.2%	Rank history: not on the FY2021–FY2023 lists and #89 in FY2024; up 25 since FY2024.
65	Vantex Service Corporation Top agencies Army (Department of the Army)	$485,673	0.2%	Rank history: not on the FY2021–FY2024 lists; up 199 since FY2024.
66	Horizon Environmental Solutions Corporation Top agencies DLA (Defense Logistics Agency)	$482,268	0.2%	Rank history: #67 in FY2021, #63 in FY2022, #22 in FY2023 and #57 in FY2024; down 9 since FY2024.
67	Big Bobs Porta Pottys Inc. Top agencies Army (Department of the Army)	$476,797	0.2%	Rank history: not on the FY2021–FY2023 lists and #87 in FY2024; up 20 since FY2024.
68	Stricklan Enterprises, Inc. Top agencies Army (Department of the Army)	$459,976	0.2%	Rank history: not on the FY2021–FY2023 lists and #69 in FY2024; up 1 since FY2024.
69	Daniels Sharpsmart, Inc. Top agencies VA (Department of Veterans Affairs)	$449,340	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
70	Okinawaken Sangyo Haikibutsushori Cooperative Association Top agencies USAF (Department of the Air Force)	$440,163	0.2%	Rank history: #91 in FY2021, not on the FY2022 list, #63 in FY2023 and #92 in FY2024; up 22 since FY2024.
71	Major Contracting Services, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$439,696	0.2%	Rank history: #46 in FY2021, not on the FY2022 list, #60 in FY2023 and #85 in FY2024; up 14 since FY2024.
72	Waste Management Collection and Recycling Inc 12 awardees, including Waste Management of Minnesota, Inc., Waste Management of Washington, Inc. and King George Landfill, Inc. Top agencies DOJ (Department of Justice) Commerce (Department of Commerce) DOI (Department of the Interior)	$439,513	0.2%	Rank history: not on the FY2021–FY2024 lists; up 56 since FY2024.
73	DAE IL Sanitary Public Corporation Top agencies Army (Department of the Army)	$438,439	0.2%	Rank history: #77 in FY2021, #49 in FY2022, #55 in FY2023 and #60 in FY2024; down 13 since FY2024.
74	Above All Sanitation, Inc. Top agencies DOI (Department of the Interior) Army (Department of the Army)	$433,020	0.2%	Rank history: not on the FY2021–FY2024 lists; up 65 since FY2024.
75	Cherokee Nation Through Cherokee Nation Environmental Solutions, L.L.C. Top agencies DLA (Defense Logistics Agency)	$428,581	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
76	Auxilio Management Services Top agencies Commerce (Department of Commerce)	$426,753	0.2%	Rank history: #36 in FY2021, #35 in FY2022, #75 in FY2023 and #77 in FY2024; up 1 since FY2024.
77	Tech O. R., LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$404,028	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
78	Estrategy Consulting, LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) Navy (Department of the Navy)	$399,285	0.2%	Rank history: #79 in FY2021, #74 in FY2022, #78 in FY2023 and #67 in FY2024; down 11 since FY2024.
79	Potawatomi Defense Operations LLC Top agencies DOT (Department of Transportation)	$398,157	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
80	Nambu Service Co., Ltd. Top agencies Army (Department of the Army)	$388,481	0.2%	Rank history: not on the FY2021–FY2024 lists; up 173 since FY2024.
81	CLC Services Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$367,436	0.2%	Rank history: not on the FY2021–FY2022 lists, #50 in FY2023 and #73 in FY2024; down 8 since FY2024.
82	Ueg, Inc. Top agencies USAF (Department of the Air Force)	$364,885	0.1%	Rank history: not on the FY2021–FY2022 lists, #70 in FY2023 and #91 in FY2024; up 9 since FY2024.
83	Jet Blast, Inc. Top agencies DHS (Department of Homeland Security)	$357,850	0.1%	Rank history: #51 in FY2021, #36 in FY2022, #44 in FY2023 and #61 in FY2024; down 22 since FY2024.
84	M4 Builders Top agencies USAF (Department of the Air Force)	$350,364	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
85	4K Sanitation LLC Top agencies Navy (Department of the Navy)	$346,845	0.1%	Rank history: not on the FY2021 list, #58 in FY2022, #76 in FY2023 and #80 in FY2024; down 5 since FY2024.
86	Mccracken Portable Toilets & Septic LLC Top agencies Army (Department of the Army)	$340,990	0.1%	Rank history: not on the FY2021–FY2023 lists and #97 in FY2024; up 11 since FY2024.
87	Mediwaste Disposal, LLC Top agencies VA (Department of Veterans Affairs)	$340,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
88	Sarandrea Associates Group Corp Top agencies USAF (Department of the Air Force)	$326,910	0.1%	Rank history: not on the FY2021–FY2024 lists; up 59 since FY2024.
89	Nsp-Bch, LLC Top agencies USAF (Department of the Air Force)	$320,474	0.1%	Rank history: not on the FY2021 list, #87 in FY2022, #93 in FY2023 and #100 in FY2024; up 11 since FY2024.
90	Environmental and Energy Innovations, LLC Top agencies VA (Department of Veterans Affairs)	$305,840	0.1%	Rank history: #97 in FY2021, #96 in FY2022, #90 in FY2023 and #72 in FY2024; down 18 since FY2024.
91	Watertalent, LLC Top agencies DOI (Department of the Interior)	$300,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
92	Coles Group (The) LLC Top agencies USAF (Department of the Air Force)	$294,876	0.1%	Rank history: #68 in FY2021, #95 in FY2022, #86 in FY2023 and #95 in FY2024; up 3 since FY2024.
93	American Vet Solutions Inc. Top agencies VA (Department of Veterans Affairs)	$293,246	0.1%	Rank history: not on the FY2021–FY2024 lists; up 90 since FY2024.
94	Meltec Iwaki Co., Ltd. Top agencies USAF (Department of the Air Force)	$288,200	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
95	A. James Global Services, Inc. Top agencies USAF (Department of the Air Force)	$287,420	0.1%	Rank history: not on the FY2021 list, #97 in FY2022, #83 in FY2023 and #84 in FY2024; down 11 since FY2024.
96	Providence Environmental Concepts and Services LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$286,985	0.1%	Rank history: #60 in FY2021, #66 in FY2022, #64 in FY2023 and #65 in FY2024; down 31 since FY2024.
97	Paula Watkins Top agencies Army (Department of the Army) USDA (Department of Agriculture)	$280,504	0.1%	Rank history: not on the FY2021–FY2022 lists, #99 in FY2023 and not on the FY2024 list; up 8 since FY2024.
98	WB Waste Solutions, LLC Top agencies SSA (Social Security Administration)	$271,203	0.1%	Rank history: not on the FY2021–FY2024 lists; up 8 since FY2024.
99	Burkett Arbor Care, LLC Top agencies USAF (Department of the Air Force)	$267,047	0.1%	Rank history: not on the FY2021–FY2022 lists, #80 in FY2023 and #82 in FY2024; down 17 since FY2024.
100	Jaedong Environment Top agencies Army (Department of the Army)	$265,420	0.1%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2023 and not on the FY2024 list; up 65 since FY2024.

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100 of 559 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 $244 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. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. 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

Who were the top 10 PSC S222 contractors in FY2025?

1. Clean Harbors Inc. ($12.6M), 2. Tradebe Environmental Services, LLC ($10.6M), 3. Willow Environmental Inc. ($9.88M), 4. Horizon Environmental Services, Inc. ($9.16M), 5. C & C Environmental Inc. ($8.64M), 6. Republic Services Inc. ($8.5M), 7. TRI-State Government Services Inc ($8.11M), 8. Sued-Muell GMBH & Co. KG Fuer Abfalltransporte UND Sonderabfallbeseitigung ($7.97M), 9. Industrial Waste Utilization, LLC ($7.1M), 10. Black Gold Industries ($6.52M).

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