Company lists · Data refreshed October 2026

Top 25 Industrial environmental contractors based in the United States

Name: Industrial environmental contractors based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 16, 2026 5,653 companies tracked

RevenueBase identified 5,653 company matches for industrial environmental contractors associated with the United States as of October 2026 and tracks 153,616 professional contacts across them, including 48,745 with verified work emails. Houston is the largest hub.

This list covers company matches for industrial environmental contractors associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 16, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 16, 2026 How this list was built

5,653Companies

153,616Contacts tracked

48,745Verified emails

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The 25 largest industrial environmental contractors based in the United States

Ranked by team size

Top 25 of 5,653 company matches for industrial environmental contractors based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 16, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Clean Harbors	Exact match	Norwell, MA, United StatesHQ recorded Oct 16, 2026	10001+	9,255 contacts →
	Exact match “Clean Harbors is North America’s leading provider of environmental and industrial services.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
2	Turner Industries	Exact match	Baton Rouge, LA, United StatesHQ recorded Oct 16, 2026	10001+	8,282 contacts →
	Exact match “Turner Industries provides a single solution in heavy industrial construction, maintenance, turnaround, pipe and module fabrication, equipment, rigging and specialized…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
3	Brock Group	Exact match	Houston, TX, United StatesHQ recorded Oct 16, 2026	10001+	3,292 contacts →
	Exact match “The Brock Group is a leading provider of industrial specialty services to clients around the world, with headquarters in Houston, TX, and operating units in Canada, the United…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
4	Performance Contractors	Exact match	Baton Rouge, LA, United StatesHQ recorded Oct 16, 2026	1,001-5,000	2,920 contacts →
	Exact match “We began as a merit shop general industrial contractor back in 1979.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
5	NCH	Exact match	Wilmington, DE, United StatesHQ recorded Oct 16, 2026	10001+	2,497 contacts →
	Exact match “Cleaning water, conserving energy and delivering maintenance solutions since 1919.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
6	Weston Solutions, INC	Exact match	West Chester, PA, United StatesHQ recorded Oct 16, 2026	1,001-5,000	1,525 contacts →
	Exact match “Weston Solutions, Inc.(Weston) is a 100% employee-owned environmental and infrastructure services firm committed to safety and providing measurable client value.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
7	CCC Group, INC	Exact match	San Antonio, TX, United StatesHQ recorded Oct 16, 2026	1,001-5,000	1,403 contacts →
	Exact match “Group, Inc.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
8	PMI	Exact match	Irvine, CA, United StatesHQ recorded Oct 16, 2026	n/a	1,361 contacts →
	Exact match “Training and Development Solutions” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
9	US Ecology Inc., A Republic Services Company	Exact match	Boise, ID, United StatesHQ recorded Oct 16, 2026	1,001-5,000	1,353 contacts →
	Exact match “US Ecology is a Republic Services company.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
10	Triumvirate Environmental	Exact match	Somerville, MA, United StatesHQ recorded Oct 16, 2026	1,001-5,000	1,120 contacts →
	Exact match “Triumvirate Environmental provides sustainable environmental solutions to leading companies in the Life Sciences, Healthcare, Education, and Advanced Manufacturing markets.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
11	Clean Earth	Exact match	King Of Prussia, PA, United StatesHQ recorded Oct 16, 2026	1,001-5,000	1,110 contacts →
	Exact match “Veolia has completed the acquisition of Clean Earth, bringing together two organizations with a shared commitment to environmental stewardship, safety and operational excellence.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
12	Barr Engineering CO	Exact match	Minneapolis, MN, United StatesHQ recorded Oct 16, 2026	1,001-5,000	1,108 contacts →
	Exact match “Barr provides engineering and environmental consulting services to clients across the Midwest, throughout the Americas, and around the world.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
13	Alliance Technical Group	Exact match	Decatur, AL, United StatesHQ recorded Oct 16, 2026	1,001-5,000	1,048 contacts →
	Exact match “Alliance is a new kind of environmental services company-powered by innovation, focused on service, and committed to client success.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
14	Excel Group	Exact match	Baton Rouge, LA, United StatesHQ recorded Oct 16, 2026	1,001-5,000	1,036 contacts →
	Exact match “EXCEL is a leading provider of industrial construction services, including maintenance, turnarounds, fabrication, and disaster recovery.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
15	Crystal Clean	Exact match	Hoffman Estates, IL, United StatesHQ recorded Oct 16, 2026	1,001-5,000	933 contacts →
	Exact match “Crystal Clean is a national leader in the environmental services market, providing the smart alternative.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
16	Starcon International, INC	Exact match	La Porte, TX, United StatesHQ recorded Oct 16, 2026	1,001-5,000	911 contacts →
	Exact match “Starcon is a national, full-service contractor offering comprehensive industrial and mechanical services in the oil & gas/refining, chemical/petrochemical, natural gas processing…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
17	ATC Group Services LLC	Exact match	Lafayette, LA, United StatesHQ recorded Oct 16, 2026	1,001-5,000	872 contacts →
	Exact match “ATC Group Services LLC is now Atlas.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
18	Montrose Environmental Group	Exact match	Little Rock, AR, United StatesHQ recorded Oct 16, 2026	1,001-5,000	843 contacts →
	Exact match “Onterris (formerly Montrose Environmental Group) was one of the first to see environmental responsibility as not just an imperative but as a strategic asset.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
19	HPC Industrial Powered By Clean Harbors	Exact match	Deer Park, TX, United StatesHQ recorded Oct 16, 2026	5,001-10,000	693 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
20	USA Debusk	Exact match	Deer Park, TX, United StatesHQ recorded Oct 16, 2026	1,001-5,000	678 contacts →
	Exact match “USA DeBusk serves the industrial infrastructure sector through a diverse and complementary suite of high-value traditional and specialty services for turnarounds, routine…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
21	Antea Group USA	Exact match	St. Paul, MN, United StatesHQ recorded Oct 16, 2026	1,001-5,000	658 contacts →
	Exact match “Antea Group is an international engineering and environmental consulting firm specializing in full-service solutions in the fields of environment, health and safety, and…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
22	The Mundy Companies	Exact match	Houston, TX, United StatesHQ recorded Oct 16, 2026	1,001-5,000	621 contacts →
	Exact match “The Mundy Companies is a privately owned company headquartered in Houston, Texas with offices Pasadena, TX, Nederland, TX, and Wilmington, NC.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
23	Southern Industrial Constructors, INC	Exact match	Raleigh, NC, United StatesHQ recorded Oct 16, 2026	1,001-5,000	591 contacts →
	Exact match “Since 1962, Southern Industrial Constructors, Inc.(SIC) has been safely and cost effectively providing industrial construction services to the manufacturing, process and power…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
24	Aramsco	Exact match	Radnor, PA, United StatesHQ recorded Oct 16, 2026	1,001-5,000	558 contacts →
	Exact match “Aramsco supports the livelihoods of specialty contractors and service professionals across the U.S.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
25	The State Group	Exact match	Franklin, TN, United StatesHQ recorded Oct 16, 2026	1,001-5,000	532 contacts →
	Exact match “The State Group is one of North America's leading multi-trade industrial and specialty services contractors.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “industrial environmental contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 5,653 industrial environmental contractors based in the United States

See the full list, filter by size, metro and specialty, and access 48,745 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Industrial environmental contractors based in the United States at a glance

As of Oct 16, 2026

31.7%Verified-email coverage

27.2Average contacts per company

11-50Median size (employees)

2.4%Largest-city concentration · Houston

Oct 16, 2026Page data refreshed

Companies by employee count

1-10

2,173

11-50

2,131

51-200

933

201-500

230

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 5,653 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United States whose business descriptions match “industrial environmental contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 48,745 professional contacts with verified work emails across the full matched dataset. 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 October 16, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Industrial environmental contractors by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “industrial environmental contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many industrial environmental contractors are there based in the United States?

RevenueBase identified 5,653 company matches for industrial environmental contractors associated with the United States as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Clean Harbors tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most industrial environmental contractors?

Houston leads with 137 company records, followed by New York (57) and Denver (43).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 48,745 professional contacts with verified work emails tracked across these 5,653 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 16, 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 SmartSearch, 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.