Company lists · Data refreshed November 2026

Top 25 Environmental inspection services based in the United States

Name: Environmental inspection services based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 4,832 companies tracked

RevenueBase identified 4,832 company matches for environmental inspection services associated with the United States as of November 2026 and tracks 58,839 professional contacts across them, including 22,317 with verified work emails. Houston is the largest hub.

This list covers company matches for environmental inspection services 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 November 6, 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 6, 2026 How this list was built

4,832Companies

58,839Contacts tracked

22,317Verified emails

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The 25 largest environmental inspection services based in the United States

Ranked by team size

Top 25 of 4,832 company matches for environmental inspection services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	ATLAS	Exact match	Denver, CO, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,575 contacts →
	Exact match “Atlas Technical Consultants (Atlas) provides professional testing, inspection, engineering, environmental and consulting services nationwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Alliance Technical Group	Exact match	Decatur, PA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,088 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 · Nov 6, 2026 · View company records in RevenueBase
3	IEA	Exact match	Brooklyn Park, MN, United StatesHQ recorded Nov 6, 2026	n/a	1,013 contacts →
	Exact match “The Institute for Environmental Assessment, Inc.(IEA) is small business committed to providing trusted environmental safety consulting services for private and public…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Tulsa Inspection Resources, LLC	Exact match	Tulsa, OK, United StatesHQ recorded Nov 6, 2026	1,001-5,000	864 contacts →
	Exact match “Core capabilities include: Inspection Services (Chief, CWI, NACE/AMPP, Utility, Environmental, Safety, Poly, etc), Non-Destructive Examination (Ultrasonic Testing (UT), Phased…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Emsl Analytical, INC	Exact match	Cinnaminson, NJ, United StatesHQ recorded Nov 6, 2026	501-1,000	766 contacts →
	Exact match “As the nation's leading environmental testing firm, EMSL's network of nationwide laboratories has been providing quality analytical services since 1981.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Antea Group USA	Exact match	St. Paul, MD, United StatesHQ recorded Nov 6, 2026	1,001-5,000	649 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 · Nov 6, 2026 · View company records in RevenueBase
7	EBI Consulting	Exact match	Burlington, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	553 contacts →
	Exact match “EBI Consulting is a national environmental and engineering consulting firm helping asset owners, investors, lenders, operators, and telecom infrastructure providers protect value…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Nova Engineering And Environmental, LLC	Exact match	Kennesaw, FL, United StatesHQ recorded Nov 6, 2026	501-1,000	541 contacts →
	Exact match “Established in 1996, NOVA was originally founded to provide Environmental Consulting, Geotechnical Engineering, and Construction Materials Testing and Inspection services to the…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Rincon Consultants	Exact match	Ventura, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	509 contacts →
	Exact match “Rincon Consultants is a multidisciplinary environmental, planning, and advisory firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Socotec US	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	498 contacts →
	Exact match “Welcome to SOCOTEC in the US, Trusted Expertise, From the Ground Up.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	AEI Consultants	Exact match	Walnut Creek, CA, United StatesHQ recorded Nov 6, 2026	201-500	493 contacts →
	Exact match “AEI Consultants provides building, environmental, land and sustainability assessment and consulting services throughout North America.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	ROUX	Exact match	Islandia, NY, United StatesHQ recorded Nov 6, 2026	201-500	474 contacts →
	Exact match “The Roux organization applies sophisticated scientific, technical, and managerial resources to develop and implement effective, efficient, and sustainable solutions to our…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Ensafe	Exact match	Memphis, TN, United StatesHQ recorded Nov 6, 2026	201-500	470 contacts →
	Exact match “Innovation is not happenstance at EnSafe Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Groundwater & Environmental Services, INC	Exact match	Wall Township, VA, United StatesHQ recorded Nov 6, 2026	201-500	470 contacts →
	Exact match “We are Groundwater & Environmental Services, Inc, better known as GES.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Telgian	Exact match	Phoenix, TX, United StatesHQ recorded Nov 6, 2026	201-500	353 contacts →
	Exact match “Since 1985, Telgian has served as a trusted partner to clients around the globe, providing innovative fire, security, life safety consulting and engineering/design services…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	GSI Environmental INC	Exact match	Houston, CA, United StatesHQ recorded Nov 6, 2026	201-500	281 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 6, 2026 · View company records in RevenueBase
17	Alliance Environmental Group, LLC	Exact match	Azusa, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	248 contacts →
	Exact match “Alliance is one of the most experienced and trusted environmental contractors in California.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Environmental Works, INC	Exact match	Springfield, AR, United StatesHQ recorded Nov 6, 2026	201-500	245 contacts →
	Exact match “Environmental Works, Inc.(EWI) offers truly comprehensive environmental solutions for a variety of industries, businesses, and municipalities.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Alpha Analytical	Exact match	Westborough, NY, United StatesHQ recorded Nov 6, 2026	501-1,000	243 contacts →
	Exact match “Since 1987, Alpha Analytical, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Patriot Environmental Services	Exact match	Signal Hill, CA, United StatesHQ recorded Nov 6, 2026	201-500	234 contacts →
	Exact match “Patriot Environmental Services, a Crystal Clean company, is a leading environmental service provider with clients throughout the Southwestern United States.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Industrial Inspection & Analysis	Exact match	Alpharetta, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	231 contacts →
	Exact match “Industrial Inspection & Analysis® (IIA) is an emerging, high growth inspection, testing, and analytical business seeking to build a national platform in order to serve a breadth…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Trileaf Corporation	Exact match	St. Louis, IL, United StatesHQ recorded Nov 6, 2026	201-500	226 contacts →
	Exact match “Quality work and quick responses - Trileaf gives you both.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Hillmann Consulting, LLC	Exact match	Union, OR, United StatesHQ recorded Nov 6, 2026	201-500	216 contacts →
	Exact match “Hillmann has been a well-recognized leader in the Environmental Health & Safety, Due Diligence & Remediation Management, and Construction Services industries since 1985.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	APPL	Exact match	Clovis, CA, United StatesHQ recorded Nov 6, 2026	n/a	201 contacts →
	Exact match “Appl Inc is an environmental services company based out of 908 N Temperance Ave, Clovis, CA, United States.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Patriot Engineering And Environmental, INC	Exact match	Indianapolis, KY, United StatesHQ recorded Nov 6, 2026	51-200	200 contacts →
	Exact match “Since its beginning in 1995, Patriot has built its reputation on serving the needs of the growing development and redevelopment community.” Recorded in the RevenueBase company graph · Nov 6, 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 inspection services”. 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 4,832 environmental inspection services based in the United States

See the full list, filter by size, metro and specialty, and access 22,317 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Environmental inspection services based in the United States at a glance

As of Nov 6, 2026

37.9%Verified-email coverage

12.2Average contacts per company

1-10Median size (employees)

1.8%Largest-city concentration · Houston

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

3,004

11-50

1,361

51-200

337

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 4,832 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 “environmental inspection 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 22,317 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 6, 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 inspection services 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 “environmental inspection services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many environmental inspection services are there based in the United States?

RevenueBase identified 4,832 company matches for environmental inspection services associated with the 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?

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

Which city has the most environmental inspection services?

Houston leads with 87 company records, followed by New York (73) and Miami (44).

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 22,317 professional contacts with verified work emails tracked across these 4,832 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 6, 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.