Company lists · Data refreshed October 2026

Top 25 Environmental contractors based in St. Louis, United States

Name: Environmental contractors based in St. Louis, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 49 companies tracked

RevenueBase identified 49 company matches for environmental contractors associated with St. Louis, United States as of October 2026 and tracks 1,293 professional contacts across them, including 589 with verified work emails. Across the United States, Houston is the largest hub for this category (207 companies); St. Louis has 49.

This list covers company matches for environmental contractors associated with St. Louis, 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 12, 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 12, 2026 How this list was built

49Companies

1,293Contacts tracked

589Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest environmental contractors based in St. Louis, United States

Ranked by team size

Top 25 of 49 company matches for environmental contractors based in St. Louis, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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	Environmental Restoration LLC	Exact match	St. Louis, MO, United StatesHQ recorded Oct 12, 2026	201-500	283 contacts →
	Exact match “Environmental Restoration LLC (ER) is 100% employee-owned and provides Environmental Site Remediation, Construction and Emergency Response services for hazardous waste materials…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2	Trileaf Corporation	Exact match	St. Louis, MO, United StatesHQ recorded Oct 12, 2026	201-500	226 contacts →
	Exact match “Quality work and quick responses - Trileaf gives you both.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3	Wise Safety & Environmental	Exact match	St. Louis, MO, United StatesHQ recorded Oct 12, 2026	51-200	76 contacts →
	Exact match “Wise Safety & Environmental consists of Wise El Santo Co.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4	Haberberger Mechanical Contractors	Exact match	St. Louis, MO, United StatesHQ recorded Oct 12, 2026	51-200	72 contacts →
	Exact match “Haberberger Mechanical is a fourth-generation owned mechanical contracting firm, specializing in plumbing, process piping, industrial piping, power piping and HVAC system design…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	Kadean Construction Company	Exact match	St. Louis, MO, United StatesHQ recorded Oct 12, 2026	51-200	71 contacts →
	Exact match “Founded in 1963, Kadean Construction is a national contractor structured around dedicated Industrial, Healthcare, and Commercial Business Units.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6	Corrigan Company Mechanical Contractors	Exact match	St. Louis, United StatesHQ recorded Oct 12, 2026	201-500	64 contacts →
	Exact match “Corrigan was founded in 1896 by John F.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7	O6 Environmental Services	Exact match	St. Louis, MO, United StatesHQ recorded Oct 12, 2026	51-200	52 contacts →
	Exact match “O6 Environmental, LLC (O6 ENV) is Small Business Enterprise (SBE) under the North American Industry Classification System Code 562910 offering comprehensive hazardous waste…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8	Sitex, INC	Exact match	St. Louis, MO, United StatesHQ recorded Oct 12, 2026	51-200	52 contacts →
	Exact match “A full-service provider of industrial and environmental health & safety services SITEX saves lives.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	The UP Companies	Exact match	St. Louis, MO, United StatesHQ recorded Oct 12, 2026	51-200	52 contacts →
	Exact match “The UP Companies is one of the region’s largest full-service MBE-certified contracting companies offering all-inclusive and convenient solutions for general contractors, owners…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10	Professional Environmental Engineers, INC	Exact match	St. Louis, MO, United StatesHQ recorded Oct 12, 2026	11-50	41 contacts →
	Exact match “PE is a full-service environmental consulting firm incorporated in 1997 and specializing in cost-effective environmental solutions for both government and commercial clientele.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11	Solutions AEC	Exact match	St. Louis, MO, United StatesHQ recorded Oct 12, 2026	11-50	29 contacts →
	Exact match “Solutions AEC is a full-service Mechanical, Plumbing, Electrical Engineering and Commissioning design and construction company with offices in St.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12	Cejarrell Contracting	Exact match	St. Louis, United StatesHQ recorded Oct 12, 2026	51-200	29 contacts →
	Exact match “Second largest contracting company in St.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13	Spirtas Worldwide An EJ Spirtas Group, LLC Company	Exact match	St. Louis, United StatesHQ recorded Oct 12, 2026	11-50	28 contacts →
	Exact match “Headquartered in St Louis (Creve Coeur), Missouri, our company is a nationally recognized, innovative management consulting firm specializing in Construction, Demolition…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14	DJM Ecological Services, INC	Exact match	St. Louis, MO, United StatesHQ recorded Oct 12, 2026	51-200	27 contacts →
	Exact match “DJM is a self-performing specialty contractor dedicated to green infrastructure with deep industry connections across multiple sectors.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15	Express Chem	Exact match	St. Louis, MO, United StatesHQ recorded Oct 12, 2026	11-50	16 contacts →
	Exact match “Express Chem is a full service waste management and industrial cleaning company that is dedicated to building long term client relationships and delivering exceptional customer…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16	Gross Mechanical	Exact match	St. Louis, MO, United StatesHQ recorded Oct 12, 2026	51-200	16 contacts →
	Exact match “Gross Mechanical Contractors (GMC) is an industrial contractor specializing in private sector industrial construction.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17	Wellington Environmental	Exact match	St. Louis, MO, United StatesHQ recorded Oct 12, 2026	51-200	12 contacts →
	Exact match “Wellington Environmental has been in business for over 30 years and serves the Midwestern United States, including all of Missouri and Illinois.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18	E.M. Harris Construction Company	Exact match	St. Louis, MO, United StatesHQ recorded Oct 12, 2026	11-50	11 contacts →
	Exact match “Celebrating 30 years in business, E.M.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19	Ahrens Contracting, INC	Exact match	St. Louis, United StatesHQ recorded Oct 12, 2026	11-50	11 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	Schneider Industries, INC	Exact match	St. Louis, MO, United StatesHQ recorded Oct 12, 2026	11-50	10 contacts →
	Exact match “Complete Turn-Key Project Management Solutions Including: Restoration and Construction Services Factory Cleanouts - Wall to Wall, Floor to Ceiling Equipment Auctions & Liquidation…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21	Aton Environmental	Exact match	St. Louis, MO, United StatesHQ recorded Oct 12, 2026	1-10	7 contacts →
	Exact match “ATON provides integrated environmental, health and safety, and real estate transaction support services to commercial, industrial, and institutional customers throughout North…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22	Enpaq, LLC	Exact match	St. Louis, MO, United StatesHQ recorded Oct 12, 2026	1-10	6 contacts →
	Exact match “ENPAQ, LLC is a certified MBE/DBE firm that provides quality environmental services to the St.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23	GC Industrial Services	Exact match	St. Louis, MO, United StatesHQ recorded Oct 12, 2026	1-10	4 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24	Kieffer Brothers Construction	Exact match	St. Louis, MO, United StatesHQ recorded Oct 12, 2026	1-10	3 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25	Stormwater PRO STL	Exact match	St. Louis, MO, United StatesHQ recorded Oct 12, 2026	1-10	2 contacts →
	Exact match “Stormwater Pro STL was founded in November 2014 emphasizing the proper installation and maintenance of stormwater treatment systems.” Recorded in the RevenueBase company graph · Oct 12, 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 “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 49 environmental contractors based in St. Louis, United States

See the full list, filter by size, metro and specialty, and access 589 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Environmental contractors based in St. Louis, United States at a glance

As of Oct 12, 2026

45.6%Verified-email coverage

26.4Average contacts per company

11-50Median size (employees)

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole United States list rather than for St. Louis, so it is reported there. Company counts and contact totals on this page are exact for St. Louis, over 49 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 St. Louis, United States whose business descriptions match “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 589 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 12, 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.

Environmental contractors by metro in the United States

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 “environmental contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many environmental contractors are there based in St. Louis, United States?

RevenueBase identified 49 company matches for environmental contractors associated with St. Louis, 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?

Environmental Restoration LLC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most environmental contractors?

Houston leads the United States with 207 company records, followed by New York (130) and Phoenix (72). St. Louis has 49.

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 589 professional contacts with verified work emails tracked across these 49 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 12, 2026.

Ready to reach these companies? Verified emails and direct dials for all 49 environmental contractors based in St. Louis, United States. Start with a free account, no credit card.

Download this list →

Related lists

Environmental contractors by geography

Browse the directory

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.