NAICS 562112: Hazardous Waste Collection
This U.S. industry comprises establishments primarily engaged in collecting and/or hauling hazardous waste within a local area and/or operating hazardous waste transfer stations. Hazardous waste collection establishments may be responsible for the identification, treatment, packaging, and labeling of waste for the purposes of transport. Cross-References. Establishments primarily engaged in--Show more
NAICS 562112 – Hazardous Waste Collection encompasses the specialized collection, transportation, and initial handling of regulated hazardous wastes from industrial, military, and government facilities. This includes the secure transport of materials such as chemical solvents, contaminated soils, biomedical waste, asbestos, lead-based paints, and other substances classified under EPA and DOT regulations.
Industry Spending Overview
Federal obligations, top contractors and agencies, and related industry codes for NAICS 562112.
AI Industry Description
NAICS 562112 – Hazardous Waste Collection encompasses the specialized collection, transportation, and initial handling of regulated hazardous wastes from industrial, military, and government facilities. This includes the secure transport of materials such as chemical solvents, contaminated soils, bi...
NAICS 562112 – Hazardous Waste Collection encompasses the specialized collection, transportation, and initial handling of regulated hazardous wastes from industrial, military, and government facilities. This includes the secure transport of materials such as chemical solvents, contaminated soils, biomedical waste, asbestos, lead-based paints, and other substances classified under EPA and DOT regulations. Services in this sector require compliance with RCRA, HAZWOPER, and DOT 49 CFR standards, often involving licensed vehicles, certified personnel, and chain-of-custody documentation. In the federal contracting landscape, this NAICS supports environmental compliance, remediation readiness, and installation sustainability programs, particularly at military bases, research labs, and border security facilities where hazardous material generation is high. Top contractors in this space include CONSULTECH ENVIRONMENTAL LLC and MST MARITIME MANAGEMENT LLC, both of which operate as small business primes with deep expertise in military and maritime hazardous waste logistics. These firms typically provide turnkey collection services under task orders, leveraging specialized equipment and trained HAZMAT teams to meet stringent federal compliance requirements. The Department of Homeland Security and the Department of Defense are the primary procuring agencies, driven by installations requiring ongoing environmental remediation, port facility decontamination, and emergency response preparedness. Demand is sustained by federal mandates for pollution prevention, base closure activities, and the safe disposal of aging chemical stockpiles. The competitive landscape is characterized by high regulatory barriers and niche operational expertise, limiting participation to firms with proven HAZMAT certifications and federal contracting experience. Opportunities are concentrated in regions with high concentrations of military installations and border infrastructure, where recurring collection cycles and emergency response needs create steady procurement pipelines. Contractors with ISO 14001 certification, DOT-compliant fleets, and experience in DoD Environmental Security Technology Certification Program (ESTCP) projects hold a distinct advantage.
Small Business Size Standard
The SBA threshold that decides who can bid NAICS 562112 work as a small business.
The SBA cap for this NAICS (13 CFR 121.201). A business at or under it can self-certify as small for work in this code, which is what makes it eligible for a small-business set-aside. The cap is set per NAICS, so the same company can be small in one code and not in another.
13 CFR 121.201, effective January 1, 2026. The SBA revises the table roughly once a year.
Top Contractors
Companies with the highest total award value under NAICS 562112, ranked by dollars won.
| Company | Total Awards | Contracts |
|---|---|---|
| MELLOR ENGINEERING INC | $13.0M | 1 |
| TRIUMVIRATE ENVIRONMENTAL, LLC | $5.9M | 8 |
| PERIKIN ENTERPRISES LLC | $3.1M | 2 |
| NEIE MEDICAL WASTE SERVICES, LLC | $2.8M | 16 |
| EARTH SMART ENVIRONMENTAL SOLUTIONS LLC | $2.5M | 16 |
| US ECOLOGY WASHINGTON INC | $2.4M | 13 |
| MABBETT & ASSOCIATES, INC. | $2.0M | 8 |
| RANGE CLEANERS INC | $1.5M | 2 |
| HAZTRAIN INC | $1.4M | 6 |
| SENTINEL GROUP LLC | $1.3M | 1 |
Top Agencies
Federal agencies directing the most contract spending toward NAICS 562112.
Competition
How many companies historically bid on federal awards in NAICS 562112, from bidder counts reported on USAspending.
Half or more of reported awards drew exactly one bidder, usually a sign of incumbent-held work rather than an open field. · 12,967 reported awards
Median Bidders
1
Per reported award, all-time
Single-Bid Awards
60%
Share of reported awards with one bidder
10+ Bidder Awards
1%
Share of reported awards with 10+ bidders
Reported Awards
12,967
84% of 15,382 total awards
Share of reported awards in each bidder-count bracket per federal fiscal year.
How this code compares up the NAICS hierarchy. Parent cohorts pool every code under their prefix, so they are the steadier baseline when a 6-digit sample is thin.
| Industry Family | Competition | Median Bidders | Single-Bid | Bidder Mix | Reported Awards |
|---|---|---|---|---|---|
562112This Code Hazardous Waste Collection | Usually Single-Bid | 1 | 60% | 12,96784% of 15,382 | |
56211NAICS Industry | Usually Single-Bid | 1 | 52% | 56,04481% of 69,240 | |
5621Industry Group Waste Collection | Usually Single-Bid | 1 | 52% | 56,04481% of 69,240 | |
562Subsector | Fewer Bidders | 2 | 37% | 273,67169% of 395,195 | |
56Sector Administrative and Support and Waste Management and Remediation Services | Fewer Bidders | 2 | 45% | 1,121,39177% of 1,461,546 |
Bidder counts reported on past federal awards in this NAICS (USAspending). An open opportunity has no bidders yet, so this is the historical norm for similar work, not a fact about this solicitation. Not all awards report bidder counts, and fewer bidders often means incumbent-held work rather than an easier win. Federal reporting of bidder counts fell from ~96% of awards (FY2016) to ~30% (FY2018 onward); the chart shows shares of reported awards, and washed-out stretches mark years with fewer than 30 of them.
Related NAICS Codes
Industries similar to Hazardous Waste Collection, by shared sector, subsector, and industry group.
Solid Waste Collection
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This U.S. industry comprises establishments primarily engaged in operating combustors and incinerato...Other Nonhazardous Waste Treatment and Disposal
This U.S. industry comprises establishments primarily engaged in (1) operating nonhazardous waste tr...Remediation Services
This industry comprises establishments primarily engaged in one or more of the following: (1) remedi...Materials Recovery Facilities
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