Company lists · Data refreshed September 2026

Top 25 Hazardous materials cleanup companies based in the United States

Name: Hazardous materials cleanup companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 2,074 companies tracked

RevenueBase identified 2,074 hazardous materials cleanup companies headquartered in the United States as of September 2026 and tracks 55,055 professional contacts across them, including 16,459 with verified work emails. Houston is the largest hub.

This list covers hazardous materials cleanup 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

2,074Companies

55,055Contacts tracked

16,459Verified emails

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The 25 largest hazardous materials cleanup companies based in the United States

Ranked by team size

Top 25 of 2,074 hazardous materials cleanup 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 materials cleanup 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Clean Harbors	Partial evidence	Norwell, MA, United StatesHQ checked Sep 20, 2026	10001+	8,924 contacts →
	Partial evidence “Clean Harbors is North America’s leading provider of environmental and industrial services.” Source: RevenueBase Database · checked Sep 20, 2026
2	ECC	Indirect evidence	Burlingame, CA, United StatesHQ checked Sep 20, 2026	n/a	2,040 contacts →
	Indirect evidence “ECC is an employee-owned company that consistently ranks among the top construction and environmental companies in the world.” Source: RevenueBase Database · checked Sep 20, 2026
3	US Ecology Inc., A Republic Services Company	Indirect evidence	Boise, ID, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,360 contacts →
	Indirect evidence “US Ecology is a Republic Services company.” Source: RevenueBase Database · checked Sep 20, 2026
4	PMI	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	n/a	1,308 contacts →
	Indirect evidence “Training and Development Solutions” Source: RevenueBase Database · checked Sep 20, 2026
5	Clean Earth	Partial evidence	King Of Prussia, PA, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,275 contacts →
	Partial 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
6	Crystal Clean	Partial evidence	Hoffman Estates, IL, United StatesHQ checked Sep 20, 2026	1,001-5,000	899 contacts →
	Partial evidence “Crystal Clean is a national leader in the environmental services market, providing the smart alternative.” Source: RevenueBase Database · checked Sep 20, 2026
7	Evergreen North America Industrial Services	Indirect evidence	La Porte, TX, United StatesHQ checked Sep 20, 2026	1,001-5,000	468 contacts →
	Indirect evidence “Evergreen North America Industrial Services offers a comprehensive range of Industrial Services for oil refineries, petrochemical plants, power generation plants, manufacturing…” Source: RevenueBase Database · checked Sep 20, 2026
8	ROUX	Indirect evidence	Islandia, NY, United StatesHQ checked Sep 20, 2026	201-500	433 contacts →
	Indirect evidence “Founded 40 years ago, Roux is recognized for being a highly effective, client-focused environmental consulting and management firm.” Source: RevenueBase Database · checked Sep 20, 2026
9	Hydrogeologic, INC	Indirect evidence	Reston, VA, United StatesHQ checked Sep 20, 2026	501-1,000	430 contacts →
	Indirect evidence “HydroGeoLogic, Inc.(HGL) is an employee-owned company with over 36 years of experience developing innovative, effective, and sustainable engineering and remediation solutions to…” Source: RevenueBase Database · checked Sep 20, 2026
10	Hepaco, LLC	Indirect evidence	Charlotte, NC, United StatesHQ checked Sep 20, 2026	501-1,000	428 contacts →
	Indirect evidence “HEPACO is the premier environmental and emergency services company in the Eastern United States with coverage across 40+ regional offices.” Source: RevenueBase Database · checked Sep 20, 2026
11	Enviroserve	Indirect evidence	Sandy, UT, United StatesHQ checked Sep 20, 2026	1,001-5,000	384 contacts →
	Indirect evidence “EnviroServe provides comprehensive environmental and rail services to safely remediate and prevent environmental releases, manage waste, and respond to emergency and catastrophic…” Source: RevenueBase Database · checked Sep 20, 2026
12	MPS Group	Indirect evidence	Farmington Hills, MI, United StatesHQ checked Sep 20, 2026	1,001-5,000	331 contacts →
	Indirect evidence “When it comes to managed professional services, there’s one company that puts the latest technologies, quality processes, and innovative management techniques to work for you –…” Source: RevenueBase Database · checked Sep 20, 2026
13	Actenviro, A Republic Services Company	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 20, 2026	501-1,000	313 contacts →
	Indirect evidence “ACT Enviro is a Republic Services company.” Source: RevenueBase Database · checked Sep 20, 2026
14	Sevenson Environmental Services INC	Indirect evidence	Niagara Falls, NY, United StatesHQ checked Sep 20, 2026	501-1,000	277 contacts →
	Indirect evidence “Sevenson Environmental Services, Inc.” Source: RevenueBase Database · checked Sep 20, 2026
15	Environmental Restoration LLC	Strong evidence	Saint Louis, MO, United StatesHQ checked Sep 20, 2026	201-500	273 contacts →
	Strong evidence “Environmental Restoration LLC (ER) is 100% employee-owned and provides Environmental Site Remediation, Construction and Emergency Response services for hazardous waste materials…” Source: RevenueBase Database · checked Sep 20, 2026
16	Aftermath Services	Indirect evidence	Aurora, IL, United StatesHQ checked Sep 20, 2026	201-500	257 contacts →
	Indirect evidence “With over 25 years of industry-leading experience, Aftermath Services® is the only trauma and hazard remediation company consistently elevating standards of care and…” Source: RevenueBase Database · checked Sep 20, 2026
17	Alliance Environmental Group, LLC	Indirect evidence	Azusa, CA, United StatesHQ checked Sep 20, 2026	501-1,000	254 contacts →
	Indirect evidence “Alliance is one of the most experienced and trusted environmental contractors in California.” Source: RevenueBase Database · checked Sep 20, 2026
18	Enviri	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 2026	10001+	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
19	Ancon Services	Indirect evidence	Los Alamitos, CA, United StatesHQ checked Sep 20, 2026	501-1,000	248 contacts →
	Indirect evidence “Founded in 1968, Ancon Services has expanded our services to cover virtually all of our clients industrial and environmental needs.” Source: RevenueBase Database · checked Sep 20, 2026
20	ACV Enviro, A Republic Services Company	Indirect evidence	Rahway, NJ, United StatesHQ checked Sep 20, 2026	501-1,000	241 contacts →
	Indirect evidence “ACV Enviro is a Republic Services company.” Source: RevenueBase Database · checked Sep 20, 2026
21	Environmental Works, INC	Indirect evidence	Springfield, MO, United StatesHQ checked Sep 20, 2026	201-500	238 contacts →
	Indirect evidence “Environmental Works, Inc.(EWI) offers truly comprehensive environmental solutions for a variety of industries, businesses, and municipalities.” Source: RevenueBase Database · checked Sep 20, 2026
22	Miller Environmental Group, INC	Indirect evidence	Calverton, NY, United StatesHQ checked Sep 20, 2026	201-500	231 contacts →
	Indirect evidence “Miller Environmental Group is a leading environmental response, remediation and restoration services company, providing industry, government, commercial and residential customers…” Source: RevenueBase Database · checked Sep 20, 2026
23	Superior Environmental Solutions, LLC	Partial evidence	Cincinnati, OH, United StatesHQ checked Sep 20, 2026	501-1,000	225 contacts →
	Partial evidence “Superior Environmental Solutions, LLC (SES) is an industrial cleaning service company founded in response to the growing need for a superior and cost effective service provider.” Source: RevenueBase Database · checked Sep 20, 2026
24	Envirocon	Indirect evidence	Missoula, MT, United StatesHQ checked Sep 20, 2026	201-500	225 contacts →
	Indirect evidence “Envirocon safely and reliably delivers projects that protect, remediate, and restore our environment for commercial and government clients nationwide.” Source: RevenueBase Database · checked Sep 20, 2026
25	Patriot Environmental Services	Partial evidence	Signal Hill, CA, United StatesHQ checked Sep 20, 2026	201-500	223 contacts →
	Partial evidence “Patriot Environmental Services, a Crystal Clean company, is a leading environmental service provider with clients throughout the Southwestern United States.” Source: RevenueBase Database · checked Sep 20, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: hazardous materials cleanup companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names hazardous materials cleanup companies.
Partial evidence: Its own public description names part of hazardous materials cleanup companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name hazardous materials cleanup companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 2,074 hazardous materials cleanup companies based in the United States

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Hazardous materials cleanup companies based in the United States at a glance

As of Sep 20, 2026

29.9%Verified-email coverage

26.5Average contacts per company

11-50Median size (employees)

1.4%Largest-city concentration · Houston

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

685

11-50

891

51-200

347

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 2,074 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 materials cleanup 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 materials cleanup 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 materials cleanup 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 materials cleanup 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, 16,459 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.

Hazardous materials cleanup companies by metro

Hazardous materials cleanup companies in Houston29
Hazardous materials cleanup companies in New York26

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 materials cleanup 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 materials cleanup companies are there based in the United States?

RevenueBase identified 2,074 hazardous materials cleanup 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 materials cleanup companies?

Houston leads with 29 headquartered companies, followed by New York (26) and Indianapolis (19).

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 16,459 verified decision-maker contacts tracked across these 2,074 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.