Company lists · Data refreshed November 2026

Top 23 Site assessment & remediation services based in Houston, United States

RevenueBase identified 44 company matches for site assessment & remediation services associated with Houston, United States as of November 2026 and tracks 1,020 professional contacts across them, including 289 with verified work emails. Across the United States, Houston is the largest hub for this category.

This list covers company matches for site assessment & remediation services associated with Houston, 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 November 1, 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 Nov 1, 2026 How this list was built
44Companies
1,020Contacts tracked
289Verified emails
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The 23 largest site assessment & remediation services based in Houston, United States

Ranked by team size
Top 23 of 44 company matches for site assessment & remediation services based in Houston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 1, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchHouston, TX, United StatesHQ recorded Nov 1, 2026201-500272 contacts →

Exact match

“GSI Environmental, Inc.(GSI), is an environmental engineering and science consulting firm committed to measuring, analyzing, and solving complex environmental problems around the…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
2Exact matchHouston, TX, United StatesHQ recorded Nov 1, 2026201-500221 contacts →

Exact match

“Since 1989, RECON has successfully completed over environmental remediation, geotechnical, and mine reclamation projects.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
3Exact matchHouston, TX, United StatesHQ recorded Nov 1, 202611-5038 contacts →

Exact match

“Phase Engineering, LLC, was founded in 1993 and is a leading engineering and environmental consulting firm, serving clients nationwide to deliver trusted environmental solutions.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
4Exact matchHouston, TX, United StatesHQ recorded Nov 1, 202611-5037 contacts →

Exact match

“RSB Environmental, an Alliance Technical Group company, is a full-service environmental engineering consulting firm, specializing in environmental health and safety services and…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
5Exact matchHouston, TX, United StatesHQ recorded Nov 1, 202611-5027 contacts →

Exact match

“Environmental Consulting and Engineering InControl Technologies was established in 1997 to provide high-end quality environmental consulting services to owners of commercial and…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
6Exact matchHouston, TX, United StatesHQ recorded Nov 1, 202611-5024 contacts →

Exact match

“IKON Environmental Solutions, LP (IKON) provides clients with unique solutions to environmental needs.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
7Exact matchHouston, TX, United StatesHQ recorded Nov 1, 202611-5023 contacts →

Exact match

“Envirotech Environmental Services is a trusted provider of remediation, IDW waste, and site services, delivering safe, responsive, and practical solutions for environmental…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
8Exact matchHouston, TX, United StatesHQ recorded Nov 1, 202611-5021 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
9Exact matchHouston, TX, United StatesHQ recorded Nov 1, 202611-5020 contacts →

Exact match

“DGPS / Survey • Tool Tracking • Tool Decontamination/NORM License/Waste Disposal • Dig Locates • Abandoned Pipeline Recovery • Environmental Services • Pipe Sales • Project…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
10Exact matchHouston, TX, United StatesHQ recorded Nov 1, 202611-5014 contacts →

Exact match

“SKA Consulting is a professional environmental engineering and consulting firm providing timely, innovative solutions to today’s environmental challenges.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
11Exact matchHouston, TX, United StatesHQ recorded Nov 1, 20261-1013 contacts →

Exact match

“Honesty Environmental Services has decades of experience providing Asbestos/Lead Based-Pain/Mold and Indoor Air Quality services to a variety of clients throughout the country…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
12Exact matchHouston, TX, United StatesHQ recorded Nov 1, 202611-509 contacts →

Exact match

“PEI Consulting Group, Inc.(PEI) is an employee owned full-service environmental consulting and engineering firm providing timely, innovative solutions to today’s environmental…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
13Exact matchHouston, TX, United StatesHQ recorded Nov 1, 202611-507 contacts →

Exact match

“Since 1986, CCI has been providing specialized services in hazardous waste compliance, permitting, site investigations, and closures; underground storage tank removals and…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
14Exact matchHouston, TX, United StatesHQ recorded Nov 1, 202611-506 contacts →

Exact match

“Our operations go as needed in the field, from minor home repairs to large commercial remediation projects.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
15Exact matchHouston, TX, United StatesHQ recorded Nov 1, 20261-106 contacts →

Exact match

“Cypress Environmental Consulting LLC (CEC) provides a broad range of environmental services including planning, site assessment, and permitting with a focus on regulatory…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
16Exact matchHouston, TX, United StatesHQ recorded Nov 1, 202611-504 contacts →

Exact match

“From AGM Surveys, ILI tool tracking, ILI Lift support, Dig site Locating, and Equipment Decontamination, to Project Management we are ready to make your project a success.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
17Exact matchHouston, TX, United StatesHQ recorded Nov 1, 20261-103 contacts →

Exact match

“MECX is a multi-disciplined engineering, consulting, water treatment, environmental construction and remediation firm providing optimal solutions to ensure client success.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
18Exact matchHouston, TX, United StatesHQ recorded Nov 1, 20261-103 contacts →

Exact match

“At Terrain Solutions Inc.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
19Exact matchHouston, TX, United StatesHQ recorded Nov 1, 20261-103 contacts →

Exact match

“East & Associates is a full-service environmental consulting firm.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
20Exact matchHouston, TX, United StatesHQ recorded Nov 1, 202611-501 contacts →

Exact match

“AcuVac conducts both Dual Phase and Soil Vapor Extraction (SVE) Pilot Tests and Events and reports the recorded data as an outsourcing service to environmental consulting and…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
21Exact matchHouston, TX, United StatesHQ recorded Nov 1, 20261-101 contacts →

Exact match

“Environeer is a veteran-owned environmental and geoscientific engineering consulting firm specializing in environmental permitting and compliance programs.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
22Exact matchHouston, TX, United StatesHQ recorded Nov 1, 20261-101 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
23Exact matchHouston, TX, United StatesHQ recorded Nov 1, 20261-101 contacts →

Exact match

“We are your Oil & Gas Remediation Experts!”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase

Showing 23 of 44 site assessment & remediation services based in Houston, United States

See the full list, filter by size, metro and specialty, and access 289 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Site assessment & remediation services based in Houston, United States at a glance

As of Nov 1, 2026
28.3%Verified-email coverage
23.2Average contacts per company
11-50Median size (employees)
Nov 1, 2026Page data refreshed

Companies by employee count

1-10
19
11-50
21
51-200
1
201-500
3

Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 44 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 Houston, United States whose business descriptions match “site assessment & remediation services” 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 289 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 November 1, 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.

Site assessment & remediation services 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 “site assessment & remediation services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many site assessment & remediation services are there based in Houston, United States?

RevenueBase identified 44 company matches for site assessment & remediation services associated with Houston, United States as of November 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?

GSI Environmental INC 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 site assessment & remediation services?

Houston leads the United States with 44 company records, followed by New York (36) and Denver (28).

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 289 professional contacts with verified work emails tracked across these 44 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 November 1, 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.