Company lists · Data refreshed September 2026

Top 25 Hazardous waste treatment companies based in the United States

RevenueBase identified 387 hazardous waste treatment companies headquartered in the United States as of September 2026 and tracks 20,405 professional contacts across them, including 7,501 with verified work emails. Houston is the largest hub.

This list covers hazardous waste treatment companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review
387Companies
20,405Contacts tracked
7,501Verified emails
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The 25 largest hazardous waste treatment companies based in the United States

Ranked by team size
Top 25 of 387 hazardous waste treatment companies based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to hazardous waste treatment companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceNorwell, MA, United StatesHQ checked Sep 20, 202610001+8,924 contacts →

Indirect evidence

“Clean Harbors is North America’s leading provider of environmental and industrial services.”

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceBoise, ID, United StatesHQ checked Sep 20, 20261,001-5,0001,360 contacts →

Indirect evidence

“US Ecology is a Republic Services company.”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceKing Of Prussia, PA, United StatesHQ checked Sep 20, 20261,001-5,0001,275 contacts →

Indirect evidence

“Veolia has completed the acquisition of Clean Earth, bringing together two organizations with a shared commitment to environmental stewardship, safety and operational excellence.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceHoffman Estates, IL, United StatesHQ checked Sep 20, 20261,001-5,000899 contacts →

Indirect evidence

“Crystal Clean is a national leader in the environmental services market, providing the smart alternative.”

Source: RevenueBase Database · checked Sep 20, 2026
5Partial evidencePortsmouth, NH, United StatesHQ checked Sep 20, 20261,001-5,000635 contacts →

Partial evidence

“WIN Waste Innovations is a waste management company committed to delivering essential waste management solutions to customers and communities supported by our team of 2,100…”

Source: RevenueBase Database · checked Sep 20, 2026
6Partial evidenceIrving, TX, United StatesHQ checked Sep 20, 2026501-1,000427 contacts →

Partial evidence

“Liquid Environmental Solutions - the largest, exclusively non-hazardous US wastewater collection and disposal company, is known for innovation and leadership in protecting…”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceSan Jose, CA, United StatesHQ checked Sep 20, 2026501-1,000313 contacts →

Indirect evidence

“ACT Enviro is a Republic Services company.”

Source: RevenueBase Database · checked Sep 20, 2026
8Partial evidenceHouston, TX, United StatesHQ checked Sep 20, 2026201-500263 contacts →

Partial evidence

“Ironclad Environmental Solutions is the leading provider of custom waste management solutions, supported by the largest national fleet of innovative, top-quality specialty assets.”

Source: RevenueBase Database · checked Sep 20, 2026
9Partial evidenceMonroe, OH, United StatesHQ checked Sep 20, 2026201-500254 contacts →

Partial evidence

“Valicor is a trusted partner for sustainable waste management solutions.”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidencePhiladelphia, PA, United StatesHQ checked Sep 20, 202610001+251 contacts →

Indirect evidence

“We believe in doing what is right - for our customers, our people, our communities and the environment.”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceRahway, NJ, United StatesHQ checked Sep 20, 2026501-1,000241 contacts →

Indirect evidence

“ACV Enviro is a Republic Services company.”

Source: RevenueBase Database · checked Sep 20, 2026
12Partial evidenceEast Longmeadow, MA, United StatesHQ checked Sep 20, 2026201-500230 contacts →

Partial evidence

“Northstar Recycling is the full-service, vendor-agnostic waste and recycling partner trusted by leading manufacturers to reduce landfill use and unlock measurable business value.”

Source: RevenueBase Database · checked Sep 20, 2026
13Partial evidenceKansas City, KS, United StatesHQ checked Sep 20, 20261,001-5,000136 contacts →

Partial evidence

“Deffenbaugh Industries is Kansas City's leading provider in waste disposal and recycling services.”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceElyria, OH, United StatesHQ checked Sep 20, 2026201-500111 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
15Partial evidenceHouston, TX, United StatesHQ checked Sep 20, 2026201-50099 contacts →

Partial evidence

“Redefining HealthCare Waste Solutions Once Again - Trilogy was formed in 2017 to become a leading provider of environmentally responsible medical waste collection, transportation…”

Source: RevenueBase Database · checked Sep 20, 2026
16Strong evidenceEscondido, CA, United StatesHQ checked Sep 20, 202651-20080 contacts →

Strong evidence

“Ingenium is a leading hazardous waste management provider focusing on providing sustainable solutions before implementing traditional disposal options.”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 20, 202651-20079 contacts →

Indirect evidence

“One name.”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceBuffalo, NY, United StatesHQ checked Sep 20, 2026201-50075 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
19Partial evidenceHigh Point, NC, United StatesHQ checked Sep 20, 202651-20060 contacts →

Partial evidence

“Terra Nova Solutions was founded on the principle of providing customers with essential integrated solutions for total waste management and auxiliary environmental services.”

Source: RevenueBase Database · checked Sep 20, 2026
20Partial evidenceManassas, VA, United StatesHQ checked Sep 20, 2026201-50057 contacts →

Partial evidence

“EnviroSolutions is a vertically integrated Solid Waste management company providing sustainable waste solutions.”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceHouston, TX, United StatesHQ checked Sep 20, 202651-20051 contacts →

Indirect evidence

“We do not inherit the earth from our ancestors; Rather, we borrow it from our children.” Advantek is building a cleaner more sustainable world.”

Source: RevenueBase Database · checked Sep 20, 2026
22Strong evidenceSt. Louis, MO, United StatesHQ checked Sep 20, 202651-20049 contacts →

Strong evidence

“O6 Environmental, LLC (O6 ENV) is Small Business Enterprise (SBE) under the North American Industry Classification System Code 562910 offering comprehensive hazardous waste…”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceWest Chester, PA, United StatesHQ checked Sep 20, 202651-20048 contacts →

Indirect evidence

“Eldredge, created in 1958 and incorporated in 1976, has a long history of dedication, working to provide superior environmental services in the industrial, refinery, commercial…”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 20, 20261,001-5,00047 contacts →

Indirect evidence

“Heritage Environmental Services (Heritage) is a privately held environmental services firm with 50 years of experience.”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceByron Center, MI, United StatesHQ checked Sep 20, 202651-20042 contacts →

Indirect evidence

“Plummer's Environmental serves the Industrial, Commercial, and Municipal needs of manufacturers and businesses.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 387 hazardous waste treatment companies based in the United States

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Hazardous waste treatment companies based in the United States at a glance

As of Sep 20, 2026
36.8%Verified-email coverage
52.7Average contacts per company
11-50Median size (employees)
3.9%Largest-city concentration · Houston
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
119
11-50
157
51-200
69
201-500
18
501-1,000
8
1,001-5,000
10
10001+
4

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 387 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among hazardous waste treatment companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “hazardous waste treatment companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names hazardous waste treatment companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among hazardous waste treatment companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 7,501 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 20, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names hazardous waste treatment companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many hazardous waste treatment companies are there based in the United States?

RevenueBase identified 387 hazardous waste treatment companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Clean Harbors, headquartered in Norwell, tops this list with the largest team on record.

Which city has the most hazardous waste treatment companies?

Houston leads with 15 headquartered companies, followed by Corona (4) and Tampa (4).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 7,501 verified decision-maker contacts tracked across these 387 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.