Top 100 Contractors in NAICS 562112: Hazardous Waste Collection, Jul 2025–Jun 2026

Name: Top 100 Contractors in NAICS 562112: Hazardous Waste Collection, 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 57% of NAICS 562112 contract dollars from July 2025 through June 2026

Contract obligations: $77,683,560 Net of deobligations, by contracts coded NAICS 562112
Contractors: 206 Parent companies with an obligation
Largest contractor: Republic Services Inc. $11.4 million, 14.0% of obligations
Data as of: Oct 16, 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	Republic Services Inc. 4 awardees, including ACV Environmental Services Inc., US Ecology Washington Inc. and US Ecology Alaska LLC Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) USAF (Department of the Air Force)	$11,429,683	14.0%	Rank history: not on the FY2021–FY2022 lists, #54 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since Jul 2024–Jun 2025.
2	Triumvirate Environmental, LLC Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) Commerce (Department of Commerce)	$10,780,326	13.2%	Rank history: #3 in FY2021, #4 in FY2022, #1 in FY2023, #2 in FY2024 and #2 in FY2025; unchanged since Jul 2024–Jun 2025.
3	Earth Smart Environmental Solutions LLC Top agencies VA (Department of Veterans Affairs)	$5,827,762	7.1%	Rank history: #4 in FY2021, #3 in FY2022, #4 in FY2023, #3 in FY2024 and #4 in FY2025; up 1 since Jul 2024–Jun 2025.
4	Neie Medical Waste Services, LLC Top agencies VA (Department of Veterans Affairs)	$3,752,487	4.6%	Rank history: #1 in FY2021, #1 in FY2022, #3 in FY2023, #4 in FY2024 and #3 in FY2025; down 1 since Jul 2024–Jun 2025.
5	Landscape Management Systems Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$3,159,973	3.9%	Rank history: #5 in FY2021, #7 in FY2022, #12 in FY2023, #5 in FY2024 and #5 in FY2025; up 4 since Jul 2024–Jun 2025.
6	Cook Inlet Region Inc. Through North Wind Site Services, LLC Top agencies Army (Department of the Army)	$2,682,638	3.3%	Rank history: not on the FY2021–FY2023 lists, #10 in FY2024 and #12 in FY2025; new, not ranked in Jul 2024–Jun 2025.
7	Pacific Commercial Services, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$2,585,199	3.2%	Rank history: #6 in FY2021, #6 in FY2022, #11 in FY2023, #7 in FY2024 and #16 in FY2025; up 45 since Jul 2024–Jun 2025.
8	Mellor Engineering Inc Top agencies Army (Department of the Army)	$2,385,805	2.9%	Rank history: not on the FY2021–FY2023 lists, #8 in FY2024 and #8 in FY2025; unchanged since Jul 2024–Jun 2025.
9	Haztrain Inc. Top agencies Navy (Department of the Navy)	$2,026,677	2.5%	Rank history: #11 in FY2021, #12 in FY2022, #17 in FY2023, #14 in FY2024 and #13 in FY2025; up 4 since Jul 2024–Jun 2025.
10	Potomac Environmental Inc. Top agencies Navy (Department of the Navy)	$1,963,913	2.4%	Rank history: not on the FY2021 list, #29 in FY2022, #9 in FY2023, #9 in FY2024 and #9 in FY2025; unchanged since Jul 2024–Jun 2025.
11	Mabbett & Associates, Inc. Top agencies VA (Department of Veterans Affairs)	$1,847,418	2.3%	Rank history: #14 in FY2021, #15 in FY2022, #8 in FY2023, #12 in FY2024 and #11 in FY2025; unchanged since Jul 2024–Jun 2025.
12	EWA Direction Inc. Top agencies Navy (Department of the Navy) VA (Department of Veterans Affairs)	$1,712,996	2.1%	Rank history: not on the FY2021 list, #16 in FY2022, #19 in FY2023, #15 in FY2024 and #15 in FY2025; up 2 since Jul 2024–Jun 2025.
13	Perikin Enterprises LLC Top agencies Army (Department of the Army)	$1,697,849	2.1%	Rank history: #7 in FY2021, #10 in FY2022, #5 in FY2023, #13 in FY2024 and #6 in FY2025; down 8 since Jul 2024–Jun 2025.
14	Range Cleaners Inc Top agencies DHS (Department of Homeland Security)	$1,522,862	1.9%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
15	Advant-Edge Solutions of Middle Atlantic Inc. Top agencies VA (Department of Veterans Affairs) Navy (Department of the Navy) HHS (Department of Health and Human Services)	$1,238,924	1.5%	Rank history: #8 in FY2021, #8 in FY2022, #14 in FY2023, #6 in FY2024 and #10 in FY2025; down 9 since Jul 2024–Jun 2025.
16	Stericycle Inc 2 awardees Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$1,124,393	1.4%	Rank history: #20 in FY2021, #23 in FY2022, #27 in FY2023, #37 in FY2024 and #19 in FY2025; up 11 since Jul 2024–Jun 2025.
17	Seres Engineering & Services LLC Top agencies Army (Department of the Army) USDA (Department of Agriculture)	$1,090,786	1.3%	Rank history: #15 in FY2021, #20 in FY2022, #13 in FY2023, #11 in FY2024 and #14 in FY2025; down 5 since Jul 2024–Jun 2025.
18	Hamilton Alliance Inc. Top agencies VA (Department of Veterans Affairs)	$1,001,254	1.2%	Rank history: #22 in FY2021, #25 in FY2022, #25 in FY2023, #17 in FY2024 and #23 in FY2025; up 2 since Jul 2024–Jun 2025.
19	Set the Standard, LLC Top agencies VA (Department of Veterans Affairs)	$945,919	1.2%	Rank history: #19 in FY2021, #18 in FY2022, #23 in FY2023, not on the FY2024 list and #17 in FY2025; down 4 since Jul 2024–Jun 2025.
20	D'S Ventures, LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$762,000	0.9%	Rank history: not on the FY2021 list, #58 in FY2022, #50 in FY2023, #38 in FY2024 and #49 in FY2025; up 23 since Jul 2024–Jun 2025.
21	Environmental Management Services Inc. Top agencies VA (Department of Veterans Affairs) USUHS (DOD Uniformed Services University of the Health Sciences)	$745,238	0.9%	Rank history: #50 in FY2021, #19 in FY2022, #29 in FY2023, #24 in FY2024 and #24 in FY2025; up 2 since Jul 2024–Jun 2025.
22	Sage, LLC Top agencies VA (Department of Veterans Affairs)	$730,662	0.9%	Rank history: not on the FY2021 list, #54 in FY2022, not on the FY2023 list, #28 in FY2024 and #22 in FY2025; down 3 since Jul 2024–Jun 2025.
23	Environmental Compliance Consultants, Inc. Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs) DHS (Department of Homeland Security)	$712,967	0.9%	Rank history: #26 in FY2021, #47 in FY2022, #21 in FY2023, #19 in FY2024 and #18 in FY2025; down 7 since Jul 2024–Jun 2025.
24	Noreas, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$703,073	0.9%	Rank history: not on the FY2021–FY2024 lists and #7 in FY2025; down 17 since Jul 2024–Jun 2025.
25	Clean Harbors Inc. 2 awardees, including Clean Harbors Environmental Services Inc. Top agencies USDA (Department of Agriculture) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$649,112	0.8%	Rank history: #30 in FY2021, #30 in FY2022, not on the FY2023 list, #46 in FY2024 and #26 in FY2025; up 7 since Jul 2024–Jun 2025.
26	Remondis Industrie Service GMBH. Top agencies DHA (Defense Health Agency) Army (Department of the Army)	$514,362	0.6%	Rank history: not on the FY2021–FY2022 lists, #75 in FY2023, #27 in FY2024 and #25 in FY2025; down 4 since Jul 2024–Jun 2025.
27	Amentum Holdings, Inc. Through Amentum Services, Inc. Top agencies Navy (Department of the Navy)	$509,198	0.6%	Rank history: not on the FY2021–FY2024 lists and #28 in FY2025; down 1 since Jul 2024–Jun 2025.
28	Sebang Oil Corporation Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$494,350	0.6%	Rank history: not on the FY2021–FY2023 lists, #23 in FY2024 and #30 in FY2025; down 10 since Jul 2024–Jun 2025.
29	Energysolutions, LLC Top agencies Navy (Department of the Navy)	$461,265	0.6%	Rank history: not on the FY2021–FY2024 lists and #27 in FY2025; down 5 since Jul 2024–Jun 2025.
30	Clean Management Environmental Group, Inc. Top agencies Army (Department of the Army) Commerce (Department of Commerce) USDA (Department of Agriculture)	$426,059	0.5%	Rank history: not on the FY2021–FY2024 lists and #46 in FY2025; up 75 since Jul 2024–Jun 2025.
31	Gulf Supplies & Commercial Services Co. Top agencies USAF (Department of the Air Force)	$415,758	0.5%	Rank history: #29 in FY2021, #28 in FY2022, #33 in FY2023, #34 in FY2024 and #20 in FY2025; up 13 since Jul 2024–Jun 2025.
32	CLC Services Inc. Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$414,576	0.5%	Rank history: #99 in FY2021, #88 in FY2022, #24 in FY2023, #31 in FY2024 and #29 in FY2025; down 15 since Jul 2024–Jun 2025.
33	North State Environmental Top agencies VA (Department of Veterans Affairs)	$413,271	0.5%	Rank history: not on the FY2021–FY2023 lists, #26 in FY2024 and #21 in FY2025; down 5 since Jul 2024–Jun 2025.
34	Apec Co., Ltd Top agencies Army (Department of the Army)	$385,769	0.5%	Rank history: #21 in FY2021, #22 in FY2022, #32 in FY2023, #47 in FY2024 and #33 in FY2025; down 3 since Jul 2024–Jun 2025.
35	Gryphon Environmental, LLC Top agencies USAF (Department of the Air Force)	$351,640	0.4%	Rank history: #32 in FY2021, #36 in FY2022, #37 in FY2023, #35 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
36	Environmental Logistics, Inc. Top agencies VA (Department of Veterans Affairs)	$350,058	0.4%	Rank history: #16 in FY2021, #32 in FY2022, #36 in FY2023, #48 in FY2024 and #37 in FY2025; unchanged since Jul 2024–Jun 2025.
37	Graymar Environmental Services, LLC Top agencies Navy (Department of the Navy)	$309,039	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
38	Consolidated Waste Services LLC Top agencies VA (Department of Veterans Affairs)	$306,504	0.4%	Rank history: not on the FY2021–FY2022 lists, #43 in FY2023, #41 in FY2024 and #50 in FY2025; up 9 since Jul 2024–Jun 2025.
39	Trilogy Medwaste Southeast, LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$278,676	0.3%	Rank history: not on the FY2021–FY2023 lists, #25 in FY2024 and #45 in FY2025; down 10 since Jul 2024–Jun 2025.
40	Tridant Solutions, Inc. Top agencies DHS (Department of Homeland Security)	$269,207	0.3%	Rank history: #31 in FY2021, #45 in FY2022, #46 in FY2023, #40 in FY2024 and #40 in FY2025; down 3 since Jul 2024–Jun 2025.
41	N.w.f.f., Inc. Top agencies DHS (Department of Homeland Security)	$264,900	0.3%	Rank history: not on the FY2021–FY2022 lists, #82 in FY2023, not on the FY2024 list and #39 in FY2025; new, not ranked in Jul 2024–Jun 2025.
42	Ponderosa Enterprises LLC Top agencies HHS (Department of Health and Human Services)	$257,424	0.3%	Rank history: not on the FY2021–FY2023 lists, #55 in FY2024 and #38 in FY2025; up 21 since Jul 2024–Jun 2025.
43	Windjammer Environmental LLC Top agencies DHS (Department of Homeland Security)	$248,132	0.3%	Rank history: not on the FY2021 list, #42 in FY2022, #49 in FY2023, #44 in FY2024 and #42 in FY2025; down 4 since Jul 2024–Jun 2025.
44	Arcwood Environmental, LLC Top agencies DOJ (Department of Justice) USDA (Department of Agriculture) Commerce (Department of Commerce)	$242,018	0.3%	Rank history: not on the FY2021–FY2024 lists and #55 in FY2025; up 25 since Jul 2024–Jun 2025.
45	Hepaco LLC Top agencies Navy (Department of the Navy) DOJ (Department of Justice)	$233,871	0.3%	Rank history: not on the FY2021–FY2022 lists, #20 in FY2023, #58 in FY2024 and not on the FY2025 list; up 56 since Jul 2024–Jun 2025.
46	Safety-Kleen Systems, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DOI (Department of the Interior)	$233,191	0.3%	Rank history: not on the FY2021–FY2024 lists and #56 in FY2025; up 12 since Jul 2024–Jun 2025.
47	Veolia Umweltservice Sued GMBH & Co. KG Top agencies Army (Department of the Army)	$222,117	0.3%	Rank history: not on the FY2021–FY2023 lists, #74 in FY2024 and #66 in FY2025; up 30 since Jul 2024–Jun 2025.
48	Provizion LLC Top agencies DOI (Department of the Interior) USDA (Department of Agriculture)	$209,749	0.3%	Rank history: not on the FY2021–FY2023 lists, #45 in FY2024 and #93 in FY2025; down 8 since Jul 2024–Jun 2025.
49	Inmar RX Solutions Inc. Top agencies VA (Department of Veterans Affairs)	$206,800	0.3%	Rank history: not on the FY2021–FY2024 lists and #51 in FY2025; down 3 since Jul 2024–Jun 2025.
50	Essinem LLC Top agencies USDA (Department of Agriculture)	$199,520	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
51	Relife Recycling S.R.L. Top agencies Army (Department of the Army)	$185,854	0.2%	Rank history: not on the FY2021–FY2023 lists, #68 in FY2024 and #58 in FY2025; up 2 since Jul 2024–Jun 2025.
52	Lepier Oil Company, Inc. Top agencies USAF (Department of the Air Force)	$185,225	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
53	Advanced Environmental Solutions Inc. Top agencies VA (Department of Veterans Affairs)	$180,519	0.2%	Rank history: #54 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
54	Blind Industries and Services of Maryland Top agencies USAF (Department of the Air Force)	$178,426	0.2%	Rank history: not on the FY2021–FY2023 lists, #71 in FY2024 and #31 in FY2025; down 12 since Jul 2024–Jun 2025.
55	Iron Enterprise LLC Top agencies VA (Department of Veterans Affairs)	$175,716	0.2%	Rank history: not on the FY2021–FY2024 lists and #54 in FY2025; up 9 since Jul 2024–Jun 2025.
56	Precision Industrial Maintenance, LLC Top agencies Army (Department of the Army)	$172,719	0.2%	Rank history: not on the FY2021 list, #67 in FY2022, #59 in FY2023, not on the FY2024 list and #47 in FY2025; down 1 since Jul 2024–Jun 2025.
57	Veolia Es Technical Solutions LLC Top agencies EPA (Environmental Protection Agency) USDA (Department of Agriculture) HHS (Department of Health and Human Services)	$168,204	0.2%	Rank history: not on the FY2021–FY2024 lists and #61 in FY2025; up 2 since Jul 2024–Jun 2025.
58	C4 Livestock and Products, LLC Top agencies HHS (Department of Health and Human Services)	$164,760	0.2%	Rank history: #90 in FY2021, #91 in FY2022, #95 in FY2023, #62 in FY2024 and #59 in FY2025; up 2 since Jul 2024–Jun 2025.
59	Heritage-Crystal Clean Inc. Through Crystal Clean, LLC Top agencies USDA (Department of Agriculture) DOI (Department of the Interior) DHS (Department of Homeland Security)	$158,178	0.2%	Rank history: not on the FY2021–FY2023 lists, #49 in FY2024 and #32 in FY2025; down 25 since Jul 2024–Jun 2025.
60	CYS Enterprises LLC Top agencies USAF (Department of the Air Force)	$156,343	0.2%	Rank history: not on the FY2021–FY2023 lists, #42 in FY2024 and #41 in FY2025; down 22 since Jul 2024–Jun 2025.
61	Milspec Logistics LLC Top agencies VA (Department of Veterans Affairs)	$144,838	0.2%	Rank history: #46 in FY2021, #63 in FY2022, not on the FY2023–FY2024 lists and #67 in FY2025; up 9 since Jul 2024–Jun 2025.
62	Curtis Bay Energy Inc. Top agencies DHA (Defense Health Agency) DOJ (Department of Justice)	$144,544	0.2%	Rank history: #73 in FY2021, not on the FY2022–FY2023 lists, #67 in FY2024 and #69 in FY2025; down 6 since Jul 2024–Jun 2025.
63	Above All Sanitation, Inc. Top agencies DOI (Department of the Interior)	$144,045	0.2%	Rank history: not on the FY2021–FY2024 lists and #44 in FY2025; down 22 since Jul 2024–Jun 2025.
64	Environmental Restoration LLC Top agencies DOJ (Department of Justice)	$143,025	0.2%	Rank history: #27 in FY2021, #46 in FY2022, #86 in FY2023 and not on the FY2024–FY2025 lists; up 87 since Jul 2024–Jun 2025.
65	F & L Environmental LLC Top agencies USDA (Department of Agriculture)	$129,963	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
66	American Vet Solutions Inc. Top agencies VA (Department of Veterans Affairs)	$128,520	0.2%	Rank history: not on the FY2021–FY2024 lists and #60 in FY2025; down 5 since Jul 2024–Jun 2025.
67	Lone Star Hazmat Response LLC Top agencies DOJ (Department of Justice)	$126,354	0.2%	Rank history: not on the FY2021–FY2024 lists and #72 in FY2025; new, not ranked in Jul 2024–Jun 2025.
68	Allied Marine & Industrial Services LLC Top agencies DHS (Department of Homeland Security)	$123,344	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
69	Mill City Environmental Corporation Top agencies Army (Department of the Army)	$123,200	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
70	Greenway Innovation, Inc. Top agencies VA (Department of Veterans Affairs)	$115,890	0.1%	Rank history: not on the FY2021–FY2024 lists and #65 in FY2025; down 4 since Jul 2024–Jun 2025.
71	VLS Environmental Solutions LLC Top agencies Commerce (Department of Commerce)	$114,047	0.1%	Rank history: not on the FY2021–FY2024 lists and #83 in FY2025; new, not ranked in Jul 2024–Jun 2025.
72	United Returns, Inc. Top agencies VA (Department of Veterans Affairs)	$108,098	0.1%	Rank history: not on the FY2021 list, #61 in FY2022, #74 in FY2023, #75 in FY2024 and #63 in FY2025; down 4 since Jul 2024–Jun 2025.
73	Tradebe Environmental Services, LLC Top agencies Army (Department of the Army)	$100,000	0.1%	Rank history: not on the FY2021–FY2023 lists, #56 in FY2024 and #70 in FY2025; down 22 since Jul 2024–Jun 2025.
74	Lewis Environmental LLC Top agencies USDA (Department of Agriculture)	$99,728	0.1%	Rank history: not on the FY2021–FY2024 lists and #68 in FY2025; down 2 since Jul 2024–Jun 2025.
75	Estrategy Consulting, LLC Top agencies VA (Department of Veterans Affairs)	$95,667	0.1%	Rank history: #24 in FY2021, #27 in FY2022, #30 in FY2023, #32 in FY2024 and #34 in FY2025; down 50 since Jul 2024–Jun 2025.
76	Advanced Chemical Transport LLC Top agencies DOI (Department of the Interior)	$85,474	0.1%	Rank history: #58 in FY2021, not on the FY2022–FY2024 lists and #73 in FY2025; up 55 since Jul 2024–Jun 2025.
77	GEO & GEO S.R.L. Top agencies Army (Department of the Army)	$84,333	0.1%	Rank history: #43 in FY2021, #41 in FY2022, #65 in FY2023, #78 in FY2024 and #74 in FY2025; new, not ranked in Jul 2024–Jun 2025.
78	Specialized Waste Solutions, Inc. Top agencies USDA (Department of Agriculture)	$82,969	0.1%	Rank history: not on the FY2021–FY2022 lists, #62 in FY2023, #51 in FY2024 and #53 in FY2025; down 28 since Jul 2024–Jun 2025.
79	KR Environmental Services Inc Top agencies VA (Department of Veterans Affairs)	$80,400	0.1%	Rank history: not on the FY2021–FY2024 lists and #78 in FY2025; down 1 since Jul 2024–Jun 2025.
80	BB Environmental Radiation Consultants LLC Top agencies VA (Department of Veterans Affairs)	$79,379	0.1%	Rank history: not on the FY2021–FY2024 lists and #84 in FY2025; up 5 since Jul 2024–Jun 2025.
81	DLD Environmental Services, Inc. Top agencies DOJ (Department of Justice)	$77,010	0.1%	Rank history: #38 in FY2021, #49 in FY2022, not on the FY2023 list, #36 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
82	Medical Environmental Technologies, LLC Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice)	$74,490	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
83	Enviroservices & Training Center LLC Top agencies Army (Department of the Army)	$73,703	0.1%	Rank history: #76 in FY2021 and not on the FY2022–FY2025 lists; up 33 since Jul 2024–Jun 2025.
84	Transchem Environmental LLC Top agencies HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$66,158	0.1%	Rank history: not on the FY2021 list, #99 in FY2022, #81 in FY2023, #89 in FY2024 and #76 in FY2025; up 22 since Jul 2024–Jun 2025.
85	T-N-T Mechanical LLC Top agencies VA (Department of Veterans Affairs)	$64,552	0.1%	Rank history: not on the FY2021 list, #75 in FY2022, not on the FY2023–FY2024 lists and #75 in FY2025; up 25 since Jul 2024–Jun 2025.
86	Schaal & Mueller GMBH & Co. KG Top agencies Army (Department of the Army)	$63,254	0.1%	Rank history: not on the FY2021–FY2022 lists, #84 in FY2023, #100 in FY2024 and not on the FY2025 list; up 18 since Jul 2024–Jun 2025.
87	American Wholesale Solutions LLC Top agencies HHS (Department of Health and Human Services)	$61,640	0.1%	Rank history: not on the FY2021–FY2022 lists, #97 in FY2023, #43 in FY2024 and #43 in FY2025; down 54 since Jul 2024–Jun 2025.
88	Reliable Pharmaceutical Returns, LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$61,342	0.1%	Rank history: #83 in FY2021, #34 in FY2022, #47 in FY2023, #54 in FY2024 and not on the FY2025 list; up 34 since Jul 2024–Jun 2025.
89	General Service Contracting, LLC Top agencies VA (Department of Veterans Affairs)	$60,876	0.1%	Rank history: not on the FY2021–FY2024 lists and #88 in FY2025; new, not ranked in Jul 2024–Jun 2025.
90	Neie, Inc. Top agencies HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$60,576	0.1%	Rank history: #95 in FY2021, #70 in FY2022, #93 in FY2023, #76 in FY2024 and #94 in FY2025; up 6 since Jul 2024–Jun 2025.
91	Notch 8 LLC Top agencies HHS (Department of Health and Human Services)	$59,150	0.1%	Rank history: not on the FY2021–FY2023 lists, #73 in FY2024 and #90 in FY2025; down 16 since Jul 2024–Jun 2025.
92	Forensiclean LLC Top agencies DOI (Department of the Interior)	$57,200	0.1%	Rank history: not on the FY2021 list, #56 in FY2022, #64 in FY2023, #97 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
93	NRC Environmental Services Inc. Top agencies Commerce (Department of Commerce)	$54,951	0.1%	Rank history: not on the FY2021–FY2024 lists and #81 in FY2025; up 15 since Jul 2024–Jun 2025.
94	Lyceum Dynamics LLC Top agencies DOT (Department of Transportation) DHS (Department of Homeland Security)	$52,886	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
95	Cliff Berry, Inc. Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security)	$50,024	0.1%	Rank history: not on the FY2021–FY2025 lists; up 72 since Jul 2024–Jun 2025.
96	Sentinel Group LLC Top agencies Army (Department of the Army)	$48,861	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
97	Capital Waste Solutions LLC Top agencies HHS (Department of Health and Human Services)	$48,696	0.1%	Rank history: not on the FY2021–FY2025 lists; up 1 since Jul 2024–Jun 2025.
98	Tysam Tech, LLC Top agencies Navy (Department of the Navy)	$48,685	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
99	First Call Environmental LLC Top agencies DOJ (Department of Justice)	$48,636	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
100	Western Oil, Inc. Top agencies Navy (Department of the Navy)	$48,225	0.1%	Rank history: not on the FY2021–FY2023 lists, #93 in FY2024 and #100 in FY2025; down 3 since Jul 2024–Jun 2025.

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100 of 206 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 $81.8 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 NAICS 562112 contractors in Jul 2025–Jun 2026?

1. Republic Services Inc. ($11.4M), 2. Triumvirate Environmental, LLC ($10.8M), 3. Earth Smart Environmental Solutions LLC ($5.83M), 4. Neie Medical Waste Services, LLC ($3.75M), 5. Landscape Management Systems Inc. ($3.16M), 6. Cook Inlet Region Inc. ($2.68M), 7. Pacific Commercial Services, Inc. ($2.59M), 8. Mellor Engineering Inc ($2.39M), 9. Haztrain Inc. ($2.03M), 10. Potomac Environmental Inc. ($1.96M).

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