#1Patriot Environmental Services Inc
Serves this area from CO
Hazardous Waste Disposal Companies in Thornton, CO
The top-ranked hazardous waste companies serving Thornton, CO are Patriot Environmental Services Inc, Cast Specialty Transportation Inc and South Park Motor Lines Inc. We list 38 hazardous waste companies serving Thornton, CO. 30 of the providers shown match an active record from U.S. EPA, checked on the date shown. Rankings follow our published methodology; sponsored placements never change rank.
Hazardous Waste Disposal Companies serving Thornton, CO (Adams County). 38 providers, 10 of the top 10 verified against federal or state records. Registry records checked on 2026-11-04.
Top 10 ranked hazardous waste companies for Thornton
#2Cast Specialty Transportation Inc
Serves this area from Commerce City, CO (4 mi)#3South Park Motor Lines Inc
Serves this area from Commerce City, CO (4 mi)#4Veolia Es Technical Solutions LLC
Serves this area from Commerce City, CO (5 mi)#5Denver Oil LLC
Serves this area from Commerce City, CO (8 mi)#6Bellio Environmental Services And Transportation LLC
Serves this area from North Washington, CO (8 mi)#7Bellio Trucking Inc
Serves this area from North Washington, CO (8 mi)#8Fiore & Sons Inc
Serves this area from North Washington, CO (8 mi)#9Ambipar Response Colorado Inc-denver
Serves this area from Commerce City, CO (8 mi)#10Waymo LLC
Serves this area from North Washington, CO (8 mi)
20 more providers serving this area
- Univar Solutions USA LLC, North Washington, CO (9 mi)
- Tank Cleaning Industrial, Denver, CO (9 mi)
- Earth Services & Abatement, Commerce City, CO (9 mi)
- Thermo Fluids Inc, Commerce City, CO (9 mi)
- Waste Management Of Colorado, Inc. DBA Curbside At Your Door Special Collection, Denver, CO (9 mi)
- Daniels Sharpsmart Inc, Denver, CO (10 mi)
- Clean Earth Specialty Waste Solutions Inc, Denver, CO (10 mi)
- Patriot Environmental Services Inc, Denver, CO (10 mi)
- Advanced Chemical Transport LLC, Denver, CO (10 mi)
- Denver Transfer Facility, Denver, CO (10 mi)
- Veolia Es Technical Solutions LLC, Denver, CO (10 mi)
- Region 8 Enviro LLC, Denver, CO (10 mi)
- Clean Harbors Environmental Services Inc, Denver, CO (10 mi)
- Belfor Environmental Denver, Arvada, CO (10 mi)
- Environmental Hazmat Services Inc, Wheat Ridge, CO (13 mi)
- Msdi - Frederick, Frederick, CO (14 mi)
- D C Solutions Inc, Aurora, CO (17 mi)
- Safety-kleen Systems Inc - Englewood, Englewood, CO (18 mi)
- Denver East Curbside At Your Door Special Collection, Aurora, CO (20 mi)
- Hazpro Transportation LLC, Centennial, CO (24 mi)
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Frequently asked questions
How many hazardous waste companies serve Thornton?
We list 38 hazardous waste companies serving Thornton, CO: 0 based there and 38 serving it from nearby. 10 of the top 10 match an active federal or state record, checked on 2026-11-04.
Which hazardous waste companies serve Thornton?
The top-ranked hazardous waste companies serving Thornton, CO are Patriot Environmental Services Inc, Cast Specialty Transportation Inc, South Park Motor Lines Inc, Veolia Es Technical Solutions LLC and Denver Oil LLC. The full ranked list, with the official records each provider matched, is on this page.
Which hazardous waste companies serving Thornton are verified against official records?
10 of the top 10 match an active official record: Patriot Environmental Services Inc (U.S. EPA), Cast Specialty Transportation Inc (U.S. EPA), South Park Motor Lines Inc (U.S. EPA), Veolia Es Technical Solutions LLC (U.S. EPA) and Denver Oil LLC (U.S. EPA), and 5 more on this page. Each badge links to the official record it matched.
How are these companies ranked?
By our published methodology: verified registrations, documented capabilities, years registered and responsiveness. Sponsored placements are shown separately and never affect rank.
What does "Verified" mean on this page?
"Verified" means we matched the provider to an active official record on the date shown; each badge links to that record. The absence of a badge only means we have not verified that item.
What is the difference between a transporter and a TSDF?
A transporter moves hazardous waste under an EPA ID; a TSDF is a permitted facility that treats, stores or disposes of it. Many providers do both.
"Verified" means we matched the provider to an active official record on the date shown. The absence of a badge only means we have not verified that item. How we rank and verify. Page updated .