Top 100 Contractors in NAICS 562211: Hazardous Waste Treatment and Disposal, Jul 2025–Jun 2026

Name: Top 100 Contractors in NAICS 562211: Hazardous Waste Treatment and Disposal, 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 70% of NAICS 562211 contract dollars from July 2025 through June 2026

Contract obligations: $1,383,199,530 Net of deobligations, by contracts coded NAICS 562211
Contractors: 278 Parent companies with an obligation
Largest contractor: Hanford Tank Waste Operations & Closure, LLC $841 million, 48.7% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Hanford Tank Waste Operations & Closure, LLC Top agencies DOE (Department of Energy)	$841,002,959	48.7%	Rank history: not on the FY2021–FY2022 lists, #50 in FY2023, not on the FY2024 list and #1 in FY2025; unchanged since Jul 2024–Jun 2025.
2	Bechtel Parsons Blue Grass, A Joint Venture Top agencies Army (Department of the Army)	$109,599,732	6.3%	Rank history: not on the FY2021–FY2023 lists, #3 in FY2024 and #2 in FY2025; unchanged since Jul 2024–Jun 2025.
3	Bechtel Corp Through Bechtel National, Inc. Top agencies Army (Department of the Army)	$68,453,847	4.0%	Rank history: #2 in FY2021, #2 in FY2022, #1 in FY2023, #2 in FY2024 and #3 in FY2025; unchanged since Jul 2024–Jun 2025.
4	ECC Constructors LLC Top agencies Army (Department of the Army)	$64,180,528	3.7%	Rank history: not on the FY2021–FY2023 lists, #5 in FY2024 and #4 in FY2025; up 1 since Jul 2024–Jun 2025.
5	Inmar RX Solutions Inc. Top agencies HHS (Department of Health and Human Services)	$40,722,298	2.4%	Rank history: not on the FY2021–FY2024 lists and #6 in FY2025; up 194 since Jul 2024–Jun 2025.
6	Aleut Environmental Remediation, LLC Top agencies Army (Department of the Army)	$22,408,328	1.3%	Rank history: not on the FY2021–FY2024 lists and #7 in FY2025; up 140 since Jul 2024–Jun 2025.
7	Environmental Rail Solutions Inc. Top agencies Army (Department of the Army)	$18,382,861	1.1%	Rank history: #50 in FY2021, #5 in FY2022, #4 in FY2023, #7 in FY2024 and #13 in FY2025; up 11 since Jul 2024–Jun 2025.
8	Guidehouse Inc. 2 awardees, including Aptim Federal Services, LLC Top agencies Navy (Department of the Navy)	$15,401,768	0.9%	Rank history: not on the FY2021–FY2023 lists, #9 in FY2024 and #8 in FY2025; unchanged since Jul 2024–Jun 2025.
9	Clean Harbors Inc. Through Clean Harbors Environmental Services Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$13,943,587	0.8%	Rank history: #20 in FY2021, #11 in FY2022, #6 in FY2023, #8 in FY2024 and #9 in FY2025; down 2 since Jul 2024–Jun 2025.
10	JFL-WCS Partners LLC Through Waste Control Specialists LLC Top agencies DOE (Department of Energy) Army (Department of the Army) EPA (Environmental Protection Agency)	$11,290,270	0.7%	Rank history: not on the FY2021–FY2022 lists, #14 in FY2023, #10 in FY2024 and #21 in FY2025; down 1 since Jul 2024–Jun 2025.
11	Veolia Es Technical Solutions LLC Top agencies Army (Department of the Army) DOJ (Department of Justice) EPA (Environmental Protection Agency)	$10,566,995	0.6%	Rank history: not on the FY2021–FY2023 lists, #28 in FY2024 and #11 in FY2025; up 12 since Jul 2024–Jun 2025.
12	Seaon Environmental LLC Top agencies Navy (Department of the Navy)	$10,472,259	0.6%	Rank history: #16 in FY2021, #9 in FY2022, #10 in FY2023, #14 in FY2024 and #10 in FY2025; down 6 since Jul 2024–Jun 2025.
13	Willow Environmental Inc. Top agencies DLA (Defense Logistics Agency)	$9,686,805	0.6%	Rank history: #17 in FY2021, #23 in FY2022, #18 in FY2023, #21 in FY2024 and #14 in FY2025; up 1 since Jul 2024–Jun 2025.
14	Tradebe Environmental Services, LLC Top agencies DLA (Defense Logistics Agency) EPA (Environmental Protection Agency)	$9,218,914	0.5%	Rank history: not on the FY2021–FY2023 lists, #27 in FY2024 and #19 in FY2025; up 2 since Jul 2024–Jun 2025.
15	TRI-State Government Services Inc Top agencies DLA (Defense Logistics Agency)	$9,187,410	0.5%	Rank history: #13 in FY2021, #19 in FY2022, #13 in FY2023, #15 in FY2024 and #17 in FY2025; down 2 since Jul 2024–Jun 2025.
16	C & C Environmental Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) DOI (Department of the Interior)	$8,892,730	0.5%	Rank history: #15 in FY2021, #10 in FY2022, #12 in FY2023, #16 in FY2024 and #12 in FY2025; down 5 since Jul 2024–Jun 2025.
17	Industrial Waste Utilization, LLC Top agencies DLA (Defense Logistics Agency)	$7,766,756	0.4%	Rank history: #12 in FY2021, #13 in FY2022, #16 in FY2023, #18 in FY2024 and #20 in FY2025; unchanged since Jul 2024–Jun 2025.
18	Energysolutions Services, Inc. Top agencies Navy (Department of the Navy)	$7,271,406	0.4%	Rank history: not on the FY2021–FY2023 lists, #19 in FY2024 and #27 in FY2025; up 123 since Jul 2024–Jun 2025.
19	Horizon Environmental Services, Inc. Top agencies DLA (Defense Logistics Agency)	$7,189,230	0.4%	Rank history: #31 in FY2021, #31 in FY2022, #19 in FY2023, #11 in FY2024 and #16 in FY2025; down 7 since Jul 2024–Jun 2025.
20	Sued-Muell GMBH & Co. KG Fuer Abfalltransporte UND Sonderabfallbeseitigung Top agencies DLA (Defense Logistics Agency)	$6,959,104	0.4%	Rank history: #19 in FY2021, #22 in FY2022, #20 in FY2023, #13 in FY2024 and #18 in FY2025; down 5 since Jul 2024–Jun 2025.
21	Neie Medical Waste Services, LLC Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$6,599,328	0.4%	Rank history: #34 in FY2021, #27 in FY2022, #26 in FY2023, #39 in FY2024 and #28 in FY2025; up 8 since Jul 2024–Jun 2025.
22	Black Gold Industries Top agencies DLA (Defense Logistics Agency)	$6,350,672	0.4%	Rank history: #11 in FY2021, #14 in FY2022, #17 in FY2023, #20 in FY2024 and #22 in FY2025; down 1 since Jul 2024–Jun 2025.
23	Harsco Corporation Through AES Asset Acquisition Corporation Top agencies DLA (Defense Logistics Agency)	$5,248,817	0.3%	Rank history: not on the FY2021–FY2023 lists, #92 in FY2024 and #33 in FY2025; up 24 since Jul 2024–Jun 2025.
24	Republic Services Inc. 3 awardees, including US Ecology Washington Inc. Top agencies Army (Department of the Army) DOE (Department of Energy) Commerce (Department of Commerce)	$4,729,413	0.3%	Rank history: #76 in FY2021, not on the FY2022 list, #83 in FY2023, #17 in FY2024 and #23 in FY2025; down 4 since Jul 2024–Jun 2025.
25	Advant-Edge Solutions of Middle Atlantic Inc. Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$4,409,056	0.3%	Rank history: #56 in FY2021, #20 in FY2022, #21 in FY2023, #23 in FY2024 and #24 in FY2025; down 3 since Jul 2024–Jun 2025.
26	Marianas Gas Corp Top agencies DLA (Defense Logistics Agency)	$3,266,308	0.2%	Rank history: not on the FY2021 list, #90 in FY2022, #25 in FY2023, #26 in FY2024 and #29 in FY2025; up 1 since Jul 2024–Jun 2025.
27	Arcwood Environmental, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) DOJ (Department of Justice)	$2,852,072	0.2%	Rank history: not on the FY2021–FY2023 lists, #35 in FY2024 and #26 in FY2025; down 2 since Jul 2024–Jun 2025.
28	Lincoln Environmental Services, Inc. Top agencies USAF (Department of the Air Force)	$2,773,141	0.2%	Rank history: #62 in FY2021, #59 in FY2022, not on the FY2023 list, #58 in FY2024 and #55 in FY2025; new, not ranked in Jul 2024–Jun 2025.
29	J&T Recycling Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,637,418	0.2%	Rank history: #24 in FY2021, #26 in FY2022, #28 in FY2023, #29 in FY2024 and #31 in FY2025; up 1 since Jul 2024–Jun 2025.
30	Pacific Commercial Services, Inc. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$2,500,784	0.1%	Rank history: #36 in FY2021, #39 in FY2022, #37 in FY2023, #24 in FY2024 and #25 in FY2025; down 11 since Jul 2024–Jun 2025.
31	Earth Smart Environmental Solutions LLC Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$2,307,980	0.1%	Rank history: #54 in FY2021, #50 in FY2022, #36 in FY2023, #30 in FY2024 and #36 in FY2025; up 3 since Jul 2024–Jun 2025.
32	Advance Engineering and Construction L.L.C. Top agencies USAF (Department of the Air Force)	$2,184,479	0.1%	Rank history: not on the FY2021–FY2022 lists, #35 in FY2023, not on the FY2024 list and #37 in FY2025; up 6 since Jul 2024–Jun 2025.
33	EDM Enterprises, LLC Top agencies VA (Department of Veterans Affairs)	$2,137,209	0.1%	Rank history: #35 in FY2021, #34 in FY2022, #41 in FY2023, #36 in FY2024 and #44 in FY2025; up 27 since Jul 2024–Jun 2025.
34	GS Environmental, Inc. Top agencies DLA (Defense Logistics Agency)	$2,063,987	0.1%	Rank history: #29 in FY2021, #33 in FY2022, #54 in FY2023, #43 in FY2024 and #35 in FY2025; up 3 since Jul 2024–Jun 2025.
35	West Central Environmental Corp. Top agencies DLA (Defense Logistics Agency)	$2,020,299	0.1%	Rank history: #53 in FY2021, #48 in FY2022, #49 in FY2023, #41 in FY2024 and #46 in FY2025; up 11 since Jul 2024–Jun 2025.
36	Tgha Top agencies DOI (Department of the Interior)	$1,999,295	0.1%	Rank history: not on the FY2021–FY2023 lists, #31 in FY2024 and #34 in FY2025; down 1 since Jul 2024–Jun 2025.
37	TD Environmental Inc. Top agencies DLA (Defense Logistics Agency)	$1,900,659	0.1%	Rank history: #44 in FY2021, #58 in FY2022, #55 in FY2023, #54 in FY2024 and #52 in FY2025; up 16 since Jul 2024–Jun 2025.
38	NRC Environmental Services Inc. Top agencies DLA (Defense Logistics Agency)	$1,846,877	0.1%	Rank history: not on the FY2021–FY2023 lists, #47 in FY2024 and #32 in FY2025; down 7 since Jul 2024–Jun 2025.
39	Relife SPA Through Relife Recycling S.R.L. Top agencies DLA (Defense Logistics Agency)	$1,682,469	0.1%	Rank history: not on the FY2021–FY2022 lists, #43 in FY2023, #42 in FY2024 and #45 in FY2025; up 1 since Jul 2024–Jun 2025.
40	Aim Consulting, LLC Top agencies DHS (Department of Homeland Security)	$1,618,348	0.1%	Rank history: not on the FY2021–FY2024 lists and #38 in FY2025; down 1 since Jul 2024–Jun 2025.
41	Jfe-K Ryukyu Logistic JV Top agencies DLA (Defense Logistics Agency)	$1,575,904	0.1%	Rank history: #40 in FY2021, #46 in FY2022, #15 in FY2023, #52 in FY2024 and #39 in FY2025; up 3 since Jul 2024–Jun 2025.
42	Okinawaken Sangyo Haikibutsushori Cooperative Association Top agencies Navy (Department of the Navy)	$1,547,612	0.1%	Rank history: #42 in FY2021, #43 in FY2022, #45 in FY2023, #44 in FY2024 and #42 in FY2025; down 1 since Jul 2024–Jun 2025.
43	EWA Direction Inc. Top agencies VA (Department of Veterans Affairs)	$1,477,228	0.1%	Rank history: #67 in FY2021, not on the FY2022 list, #99 in FY2023, #57 in FY2024 and #41 in FY2025; down 11 since Jul 2024–Jun 2025.
44	Applied Technology, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$1,236,139	0.1%	Rank history: not on the FY2021 list, #57 in FY2022, #23 in FY2023, #46 in FY2024 and #59 in FY2025; up 4 since Jul 2024–Jun 2025.
45	Tad Environment Top agencies DLA (Defense Logistics Agency)	$1,148,573	0.1%	Rank history: #52 in FY2021, #47 in FY2022, #48 in FY2023, #49 in FY2024 and #67 in FY2025; up 5 since Jul 2024–Jun 2025.
46	ECO Energy Korea Co., Ltd Top agencies DLA (Defense Logistics Agency)	$1,130,614	0.1%	Rank history: not on the FY2021–FY2023 lists, #94 in FY2024 and #47 in FY2025; up 3 since Jul 2024–Jun 2025.
47	Specs Chemical Services, LLC Top agencies Army (Department of the Army)	$1,029,000	0.1%	Rank history: not on the FY2021–FY2024 lists and #51 in FY2025; new, not ranked in Jul 2024–Jun 2025.
48	Stericycle Inc 2 awardees Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) USAF (Department of the Air Force)	$966,240	0.1%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2023, #66 in FY2024 and #50 in FY2025; up 6 since Jul 2024–Jun 2025.
49	Onaka Gumi Co.,Ltd. Top agencies DLA (Defense Logistics Agency)	$953,156	0.1%	Rank history: #65 in FY2021, #60 in FY2022, #72 in FY2023, #62 in FY2024 and #53 in FY2025; down 6 since Jul 2024–Jun 2025.
50	American Vet Solutions Inc. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$948,966	0.1%	Rank history: not on the FY2021–FY2024 lists and #54 in FY2025; up 2 since Jul 2024–Jun 2025.
51	Broadview Waste Solutions, Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$921,430	0.1%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2023, #65 in FY2024 and #61 in FY2025; up 8 since Jul 2024–Jun 2025.
52	Remondis Industrie Service GMBH. Top agencies DLA (Defense Logistics Agency)	$893,108	0.1%	Rank history: not on the FY2021–FY2022 lists, #66 in FY2023, #50 in FY2024 and #48 in FY2025; down 10 since Jul 2024–Jun 2025.
53	Veolia ES (UK) Limited Top agencies DLA (Defense Logistics Agency)	$891,913	0.1%	Rank history: not on the FY2021–FY2023 lists, #75 in FY2024 and #64 in FY2025; up 11 since Jul 2024–Jun 2025.
54	Clean Earth Systems, Inc. Top agencies DLA (Defense Logistics Agency)	$862,681	<0.1%	Rank history: #45 in FY2021, #38 in FY2022, #34 in FY2023, #33 in FY2024 and #40 in FY2025; down 18 since Jul 2024–Jun 2025.
55	Kankyo Solution Co.,Ltd Top agencies Navy (Department of the Navy)	$847,776	<0.1%	Rank history: not on the FY2021–FY2024 lists and #57 in FY2025; down 4 since Jul 2024–Jun 2025.
56	Chenega-Salas O'brien JV, LLC Top agencies Army (Department of the Army)	$782,760	<0.1%	Rank history: not on the FY2021–FY2024 lists and #56 in FY2025; up 38 since Jul 2024–Jun 2025.
57	Auxilio Management Services Top agencies DOI (Department of the Interior)	$748,327	<0.1%	Rank history: #83 in FY2021, #55 in FY2022, #56 in FY2023, #64 in FY2024 and #63 in FY2025; unchanged since Jul 2024–Jun 2025.
58	Mediwaste Disposal, LLC Top agencies VA (Department of Veterans Affairs)	$720,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #78 in FY2025; up 77 since Jul 2024–Jun 2025.
59	Iron Enterprise LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$668,806	<0.1%	Rank history: not on the FY2021–FY2024 lists and #68 in FY2025; up 8 since Jul 2024–Jun 2025.
60	Pacific Coast Contracting Group Top agencies VA (Department of Veterans Affairs)	$645,367	<0.1%	Rank history: not on the FY2021–FY2024 lists and #62 in FY2025; up 72 since Jul 2024–Jun 2025.
61	Vesequ LLC Top agencies VA (Department of Veterans Affairs)	$640,000	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
62	Up-Side Management Co Top agencies Army (Department of the Army)	$612,855	<0.1%	Rank history: #82 in FY2021, #79 in FY2022, #73 in FY2023, #63 in FY2024 and #70 in FY2025; down 4 since Jul 2024–Jun 2025.
63	Advetage Solutions LLC Top agencies Army (Department of the Army)	$589,565	<0.1%	Rank history: not on the FY2021–FY2024 lists and #65 in FY2025; up 115 since Jul 2024–Jun 2025.
64	Verina Consulting Group LLC Top agencies USAF (Department of the Air Force)	$491,813	<0.1%	Rank history: #80 in FY2021, #76 in FY2022, #82 in FY2023, #82 in FY2024 and #75 in FY2025; up 22 since Jul 2024–Jun 2025.
65	Terrabella Environmental Services Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$489,857	<0.1%	Rank history: not on the FY2021–FY2024 lists and #93 in FY2025; up 46 since Jul 2024–Jun 2025.
66	Whitewater Environmental LLC Top agencies USAF (Department of the Air Force)	$477,096	<0.1%	Rank history: not on the FY2021–FY2022 lists, #80 in FY2023, #93 in FY2024 and #74 in FY2025; up 5 since Jul 2024–Jun 2025.
67	BWX Technologies, Inc. Through Bwxt Nog Technologies, Inc. Top agencies DOE (Department of Energy)	$474,869	<0.1%	Rank history: #69 in FY2021, #68 in FY2022, #64 in FY2023, #69 in FY2024 and #85 in FY2025; up 21 since Jul 2024–Jun 2025.
68	Horizon Environmental Solutions Corporation Top agencies DLA (Defense Logistics Agency)	$458,669	<0.1%	Rank history: #70 in FY2021, #67 in FY2022, #31 in FY2023, #61 in FY2024 and #69 in FY2025; down 6 since Jul 2024–Jun 2025.
69	Daniels Sharpsmart Inc. Top agencies VA (Department of Veterans Affairs)	$449,340	<0.1%	Rank history: not on the FY2021–FY2024 lists and #71 in FY2025; new, not ranked in Jul 2024–Jun 2025.
70	Energysolutions, LLC Top agencies Navy (Department of the Navy) DOE (Department of Energy)	$440,667	<0.1%	Rank history: not on the FY2021–FY2024 lists and #15 in FY2025; down 60 since Jul 2024–Jun 2025.
71	August Mack Environmental, Inc. Top agencies Army (Department of the Army)	$416,062	<0.1%	Rank history: not on the FY2021–FY2024 lists and #49 in FY2025; down 26 since Jul 2024–Jun 2025.
72	Schrass GMBH Top agencies Army (Department of the Army)	$389,960	<0.1%	Rank history: not on the FY2021 list, #99 in FY2022, not on the FY2023 list, #84 in FY2024 and not on the FY2025 list; up 1 since Jul 2024–Jun 2025.
73	F & L Environmental LLC Top agencies USDA (Department of Agriculture)	$369,419	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
74	Gregory Spells Top agencies USAF (Department of the Air Force)	$364,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #77 in FY2025; new, not ranked in Jul 2024–Jun 2025.
75	Environmental and Energy Innovations, LLC Top agencies VA (Department of Veterans Affairs)	$353,977	<0.1%	Rank history: not on the FY2021–FY2023 lists, #81 in FY2024 and #81 in FY2025; up 4 since Jul 2024–Jun 2025.
76	Tradebe Treatment and Recycling, LLC Top agencies DLA (Defense Logistics Agency)	$333,548	<0.1%	Rank history: #14 in FY2021, #16 in FY2022, #9 in FY2023, #22 in FY2024 and #30 in FY2025; down 48 since Jul 2024–Jun 2025.
77	Bionomics, Inc. Top agencies Commerce (Department of Commerce) HHS (Department of Health and Human Services)	$329,138	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 160 since Jul 2024–Jun 2025.
78	Nana Regional Corporation, Inc. Through Akima Global Logistics, LLC Top agencies DHS (Department of Homeland Security)	$312,480	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
79	H & L Environmental Services, LLC Top agencies HHS (Department of Health and Human Services)	$308,532	<0.1%	Rank history: not on the FY2021–FY2024 lists and #82 in FY2025; up 2 since Jul 2024–Jun 2025.
80	Street Legal Industries LLC Top agencies DLA (Defense Logistics Agency)	$293,220	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
81	I-2-I Solutions, Inc. Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$285,107	<0.1%	Rank history: not on the FY2021–FY2023 lists, #91 in FY2024 and #80 in FY2025; up 10 since Jul 2024–Jun 2025.
82	Ncns Environmental, Inc. Top agencies VA (Department of Veterans Affairs)	$273,978	<0.1%	Rank history: #71 in FY2021, #80 in FY2022, #74 in FY2023, #70 in FY2024 and #91 in FY2025; up 11 since Jul 2024–Jun 2025.
83	Environmental Management Services Inc. Top agencies EPA (Environmental Protection Agency)	$271,954	<0.1%	Rank history: #88 in FY2021, not on the FY2022–FY2024 lists and #90 in FY2025; up 30 since Jul 2024–Jun 2025.
84	Hamilton Alliance Inc. Top agencies VA (Department of Veterans Affairs)	$255,660	<0.1%	Rank history: #96 in FY2021, #85 in FY2022, #68 in FY2023, #80 in FY2024 and #79 in FY2025; down 8 since Jul 2024–Jun 2025.
85	B&M Construction Inc. Top agencies VA (Department of Veterans Affairs)	$246,706	<0.1%	Rank history: not on the FY2021–FY2024 lists and #87 in FY2025; new, not ranked in Jul 2024–Jun 2025.
86	Entsorgungsbetrieb Luzia Francois GMBH Top agencies USAF (Department of the Air Force)	$243,227	<0.1%	Rank history: #38 in FY2021, #37 in FY2022, #33 in FY2023, #45 in FY2024 and #58 in FY2025; down 25 since Jul 2024–Jun 2025.
87	Jalal ALI Ahmed Attief Contracting Establishment Top agencies USAF (Department of the Air Force)	$235,177	<0.1%	Rank history: not on the FY2021–FY2024 lists and #99 in FY2025; up 16 since Jul 2024–Jun 2025.
88	Cherokee Nation Environmental Solutions, L.L.C. Top agencies DLA (Defense Logistics Agency)	$229,876	<0.1%	Rank history: #87 in FY2021, #82 in FY2022, #78 in FY2023, #73 in FY2024 and #72 in FY2025; down 20 since Jul 2024–Jun 2025.
89	D'S Ventures, LLC Top agencies USAF (Department of the Air Force)	$212,902	<0.1%	Rank history: not on the FY2021 list, #86 in FY2022, #81 in FY2023, #71 in FY2024 and #94 in FY2025; down 20 since Jul 2024–Jun 2025.
90	Davison Marine L.l.c Top agencies Army (Department of the Army)	$212,600	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
91	Jim's Tank Service, LLC Top agencies Army (Department of the Army)	$209,704	<0.1%	Rank history: not on the FY2021 list, #69 in FY2022, not on the FY2023 list, #100 in FY2024 and not on the FY2025 list; up 48 since Jul 2024–Jun 2025.
92	Essinem LLC Top agencies USDA (Department of Agriculture)	$209,208	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
93	Izaydas Izmit Atik VE Artiklari Aritma Yakma VE Degerlendirme Anonim Sirketi Top agencies DLA (Defense Logistics Agency)	$196,163	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 50 since Jul 2024–Jun 2025.
94	DLD Environmental Services, Inc. Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs)	$186,732	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 83 since Jul 2024–Jun 2025.
95	Trilogy Medwaste Southeast, LLC Top agencies VA (Department of Veterans Affairs)	$181,478	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 118 since Jul 2024–Jun 2025.
96	Eco.m. Servizi S.R.L. Top agencies Army (Department of the Army)	$180,791	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 32 since Jul 2024–Jun 2025.
97	Johnsondanforth, Inc. Top agencies VA (Department of Veterans Affairs)	$171,431	<0.1%	Rank history: #51 in FY2021, #35 in FY2022, #44 in FY2023, #48 in FY2024 and #83 in FY2025; down 34 since Jul 2024–Jun 2025.
98	HL Consultech JV LLC Top agencies HHS (Department of Health and Human Services)	$167,864	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 44 since Jul 2024–Jun 2025.
99	North State Environmental Top agencies VA (Department of Veterans Affairs)	$166,634	<0.1%	Rank history: not on the FY2021–FY2024 lists and #66 in FY2025; down 33 since Jul 2024–Jun 2025.
100	Environmental Packaging Top agencies Treasury (Department of the Treasury)	$159,955	<0.1%	Rank history: not on the FY2021–FY2024 lists and #98 in FY2025; up 33 since Jul 2024–Jun 2025.

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100 of 278 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 $1.73 billion 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 NAICS 562211 contractors in Jul 2025–Jun 2026?

1. Hanford Tank Waste Operations & Closure, LLC ($841M), 2. Bechtel Parsons Blue Grass, A Joint Venture ($110M), 3. Bechtel Corp ($68.5M), 4. ECC Constructors LLC ($64.2M), 5. Inmar RX Solutions Inc. ($40.7M), 6. Aleut Environmental Remediation, LLC ($22.4M), 7. Environmental Rail Solutions Inc. ($18.4M), 8. Guidehouse Inc. ($15.4M), 9. Clean Harbors Inc. ($13.9M), 10. JFL-WCS Partners LLC ($11.3M).

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