Company lists · Data refreshed September 2026

Top 25 Environmental training providers based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 429 companies tracked

RevenueBase identified 429 environmental training providers headquartered in the United States as of September 2026 and tracks 3,676 professional contacts across them, including 1,020 with verified work emails. Houston is the largest hub.

This list covers environmental training providers 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 19, 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 19, 2026 86% judged on-target in blind review

429Companies

3,676Contacts tracked

1,020Verified emails

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The 25 largest environmental training providers based in the United States

Ranked by team size

Top 25 of 429 environmental training providers based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to environmental training providers: 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	Techlaw	Partial evidence	Chantilly, VA, United StatesHQ checked Sep 19, 2026	201-500	104 contacts →
	Partial evidence “Established in 1983, TechLaw provides environmental and management consulting services to the public sector nationwide.” Source: RevenueBase Database · checked Sep 19, 2026
2	IHRDC	Partial evidence	Boston, MA, United StatesHQ checked Sep 19, 2026	51-200	98 contacts →
	Partial evidence “For 55 years, International Human Resources Development Corporation has been a worldwide leader in training and competency development for the oil and gas industry.” Source: RevenueBase Database · checked Sep 19, 2026
3	RST Global Solutions Group	Partial evidence	Sugar Land, TX, United StatesHQ checked Sep 19, 2026	51-200	92 contacts →
	Partial evidence “RST is a Global onboard and on-site training provider to the Oil and Gas Sector our range of training includes HSE, Lifting Equipment, Technical and Marine.” Source: RevenueBase Database · checked Sep 19, 2026
4	ISI Environmental	Partial evidence	Wichita, KS, United StatesHQ checked Sep 19, 2026	51-200	79 contacts →
	Partial evidence “iSi provides environmental, health and safety facility support services to a wide variety of industries across the U.S.” Source: RevenueBase Database · checked Sep 19, 2026
5	SES Environmental	Indirect evidence	Fort Wayne, IN, United StatesHQ checked Sep 19, 2026	11-50	73 contacts →
	Indirect evidence “We are a full service EH & S consulting and contracting firm based in the Midwestern United States, serving companies throughout the world.” Source: RevenueBase Database · checked Sep 19, 2026
6	Servitium	Indirect evidence	Jacksonville, FL, United StatesHQ checked Sep 19, 2026	51-200	72 contacts →
	Indirect evidence “Servitium is a US based enterprise headquartered in Jacksonville, Florida with a wholly owned subsidiary in NOIDA, India.” Source: RevenueBase Database · checked Sep 19, 2026
7	LEW Environmental	Partial evidence	Mine Hill, NJ, United StatesHQ checked Sep 19, 2026	51-200	59 contacts →
	Partial evidence “THE ENVIRONMENTAL COMPANY LEW Environmental Services is proud to be part of the Mainline Environmental family of companies, alongside our sister organizations HSE Consulting and…” Source: RevenueBase Database · checked Sep 19, 2026
8	Safex INC	Indirect evidence	Westerville, OH, United StatesHQ checked Sep 19, 2026	11-50	57 contacts →
	Indirect evidence “We are committed to the total wellbeing of your employees.” Source: RevenueBase Database · checked Sep 19, 2026
9	Sitex, INC	Partial evidence	St. Louis, MO, United StatesHQ checked Sep 19, 2026	51-200	54 contacts →
	Partial evidence “A full-service provider of industrial and environmental health & safety services SITEX saves lives.” Source: RevenueBase Database · checked Sep 19, 2026
10	Clicksafety	Partial evidence	Burlington, MA, United StatesHQ checked Sep 19, 2026	11-50	46 contacts →
	Partial evidence “For 25 years, ClickSafety has partnered with companies across construction, manufacturing, warehousing, and more to offer a complete environmental, health, safety, and wellness…” Source: RevenueBase Database · checked Sep 19, 2026
11	Whitetail Environmental LLC	Partial evidence	Jay, OK, United StatesHQ checked Sep 19, 2026	51-200	45 contacts →
	Partial evidence “Whitetail Environmental, LLC is a Small Business Administration (SBA)-certified 8(a), Native American-owned small disadvantaged business.” Source: RevenueBase Database · checked Sep 19, 2026
12	Sustainable Solutions Corporation	Partial evidence	Royersford, PA, United StatesHQ checked Sep 19, 2026	11-50	43 contacts →
	Partial evidence “Sustainable Solutions Corporation (SSC) helps organizations reduce costs, improve competitive advantage, and minimize environmental impact through end-to-end corporate…” Source: RevenueBase Database · checked Sep 19, 2026
13	Vert Environmental	Partial evidence	San Diego, CA, United StatesHQ checked Sep 19, 2026	11-50	39 contacts →
	Partial evidence “We are a green environmental testing and consulting firm, dedicated to providing the highest level of customer service available in the industry.” Source: RevenueBase Database · checked Sep 19, 2026
14	Lion Technology INC	Partial evidence	Sparta, NJ, United StatesHQ checked Sep 19, 2026	11-50	37 contacts →
	Partial evidence “Lion empowers environmental, safety, and hazardous materials professionals to manage compliance with DOT hazmat, RCRA hazardous waste, HAZWOPER, OSHA workplace safety, IATA DGR…” Source: RevenueBase Database · checked Sep 19, 2026
15	Greenhouse GAS Management Institute Ghgmi	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 19, 2026	11-50	35 contacts →
	Indirect evidence “The Greenhouse Gas Management Institute (GHGMI) was founded in response to the current and future need for qualified greenhouse gas (GHG) professionals.” Source: RevenueBase Database · checked Sep 19, 2026
16	Natec International	Indirect evidence	Anaheim, CA, United StatesHQ checked Sep 19, 2026	51-200	32 contacts →
	Indirect evidence “NATEC International, Inc.” Source: RevenueBase Database · checked Sep 19, 2026
17	Nes, INC	Partial evidence	Folsom, CA, United StatesHQ checked Sep 19, 2026	11-50	29 contacts →
	Partial evidence “At NES, we partner with clients to provide comprehensive, customer-focused Environmental, Health, and Safety (EH & S) consulting and education solutions that ensure regulatory…” Source: RevenueBase Database · checked Sep 19, 2026
18	Gulf Coast Safety Council	Indirect evidence	St. Rose, LA, United StatesHQ checked Sep 19, 2026	11-50	27 contacts →
	Indirect evidence “The Gulf Coast Safety provides high quality industrial education for plant personnel and contract workers.” Source: RevenueBase Database · checked Sep 19, 2026
19	National Association Of Safety Professionals	Strong evidence	Wilmington, NC, United StatesHQ checked Sep 19, 2026	11-50	27 contacts →
	Strong evidence “The National Association of Safety Professionals (NASP) provides market-leading training and professional certifications to industry professionals in the environmental, health…” Source: RevenueBase Database · checked Sep 19, 2026
20	Safetyskills	Partial evidence	Oklahoma City, OK, United StatesHQ checked Sep 19, 2026	51-200	27 contacts →
	Partial evidence “Based in the USA, SafetySkills develops competency-based e-learning courses for environmental health and safety and human resources education.” Source: RevenueBase Database · checked Sep 19, 2026
21	Safety Unlimited, INC	Indirect evidence	Simi Valley, CA, United StatesHQ checked Sep 19, 2026	11-50	26 contacts →
	Indirect evidence “Since 1993, Safety Unlimited, Inc.” Source: RevenueBase Database · checked Sep 19, 2026
22	Compliance Solutions Occupational Trainers INC	Partial evidence	Denver, CO, United StatesHQ checked Sep 19, 2026	11-50	26 contacts →
	Partial evidence “Since 1995, we've been your single source for OSHA, DOT & EPA compliant employee EH & S training and certification.” Source: RevenueBase Database · checked Sep 19, 2026
23	Safety Training Services, INC	Partial evidence	Highland, IN, United StatesHQ checked Sep 19, 2026	11-50	25 contacts →
	Partial evidence “As the number and complexity of health and safety training regulations increase, many businesses are finding it difficult to maintain compliance and avoid civil and criminal…” Source: RevenueBase Database · checked Sep 19, 2026
24	Batta Environmental Associates	Partial evidence	Newark, DE, United StatesHQ checked Sep 19, 2026	51-200	23 contacts →
	Partial evidence “BATTA Environmental Associates, Inc.” Source: RevenueBase Database · checked Sep 19, 2026
25	Aegis Environmental	Partial evidence	Richmond, VA, United StatesHQ checked Sep 19, 2026	11-50	23 contacts →
	Partial evidence “Aegis provides integrated, cost-effective environmental management strategies to industry and government.” Source: RevenueBase Database · checked Sep 19, 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: environmental training providers. 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 environmental training providers.
Partial evidence: Its own public description names part of environmental training providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental training providers. 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 429 environmental training providers based in the United States

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Environmental training providers based in the United States at a glance

As of Sep 19, 2026

27.7%Verified-email coverage

8.6Average contacts per company

1-10Median size (employees)

2.6%Largest-city concentration · Houston

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

265

11-50

131

51-200

201-500

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 429 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 environmental training providers, 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 “environmental training providers”. 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 environmental training providers), 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 environmental training providers, 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, 1,020 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 19, 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.

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 environmental training providers, 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 environmental training providers are there based in the United States?

RevenueBase identified 429 environmental training providers 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?

Techlaw, headquartered in Chantilly, tops this list with the largest team on record.

Which city has the most environmental training providers?

Houston leads with 11 headquartered companies, followed by New York (11) and Chicago (7).

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 1,020 verified decision-maker contacts tracked across these 429 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 19, 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.