#1Ecology Services, Inc
Based in Columbia, MD
Hazardous Waste Disposal Companies in Columbia, MD
The top-ranked hazardous waste companies serving Columbia, MD are Ecology Services, Inc, Products Support Inc and Will, Harry M Jr Inc. We list 169 hazardous waste companies serving Columbia, MD. 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 Columbia, MD (Howard County). 169 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 Columbia
#2Products Support Inc
Based in Columbia, MD#3Will, Harry M Jr Inc
Based in Columbia, MD#4Howco Transfer Company
Serves this area from Ellicott City, MD (4 mi)#5Tli Freight Services LLC
Serves this area from Fulton, MD (4 mi)#6E O I Inc
Serves this area from Jessup, MD (5 mi)#7Professional Graphics Printing Company
Serves this area from North Laurel, MD (6 mi)#8Marcor Environmental Inc
Serves this area from Elkridge, MD (6 mi)#9King`s Trucking Inc
Serves this area from Maryland City, MD (6 mi)#10Chesapeake Electrical Systems Inc
Serves this area from North Laurel, MD (7 mi)
20 more providers serving this area
- Diversified Refuse Service Inc, North Laurel, MD (7 mi)
- American Tank Transport Inc, Elkridge, MD (7 mi)
- Clean Harbors Laurel, LLC, Maryland City, MD (7 mi)
- Reynolds Hauling Co, Catonsville, MD (8 mi)
- Rso Inc DBA Radiation Service Organization, Konterra, MD (8 mi)
- Maryland City Wastewater, Maryland City, MD (8 mi)
- Marcor Inc, Woodlawn, MD (9 mi)
- Willard, Lantz Company Inc, Konterra, MD (9 mi)
- Discount One Hour Photo, Cloverly, MD (10 mi)
- Centimark Corp, MD
- Fleetpro, Inc, Arbutus, MD (10 mi)
- Ebi Services Inc, Arbutus, MD (10 mi)
- The Simon X Ray Company, Arbutus, MD (10 mi)
- Mcdonald, A J Co, Arbutus, MD (11 mi)
- D & R Hauling Co, Lansdowne, MD (11 mi)
- Waste Tron Of Maryland Inc, Arbutus, MD (11 mi)
- A&a Environmental Svcs, Linthicum, MD (11 mi)
- Environmental Preservation Association, Beltsville, MD (11 mi)
- Office Movers Inc, Linthicum, MD (11 mi)
- Jones & Williams Waste Oil Service, Calverton, MD (11 mi)
Request quotes
Frequently asked questions
How many hazardous waste companies serve Columbia?
We list 169 hazardous waste companies serving Columbia, MD: 3 based there and 166 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 Columbia?
The top-ranked hazardous waste companies serving Columbia, MD are Ecology Services, Inc, Products Support Inc, Will, Harry M Jr Inc, Howco Transfer Company and Tli Freight Services LLC. The full ranked list, with the official records each provider matched, is on this page.
Which hazardous waste companies serving Columbia are verified against official records?
10 of the top 10 match an active official record: Ecology Services, Inc (U.S. EPA), Products Support Inc (U.S. EPA), Will, Harry M Jr Inc (U.S. EPA), Howco Transfer Company (U.S. EPA) and Tli Freight Services 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 .