Company lists · Data refreshed September 2026

Top 25 Environmental regulatory compliance software manufacturers based in the United States

Name: Environmental regulatory compliance software manufacturers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 693 companies tracked

RevenueBase identified 693 environmental regulatory compliance software manufacturers headquartered in the United States as of September 2026 and tracks 18,278 professional contacts across them, including 8,203 with verified work emails. Houston is the largest hub.

This list covers environmental regulatory compliance software manufacturers 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 21, 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 21, 2026 86% judged on-target in blind review

693Companies

18,278Contacts tracked

8,203Verified emails

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The 25 largest environmental regulatory compliance software manufacturers based in the United States

Ranked by team size

Top 25 of 693 environmental regulatory compliance software manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to environmental regulatory compliance software manufacturers: 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	Sphera	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,349 contacts →
	Indirect evidence “Sphera creates a safer, more sustainable and productive world.” Source: RevenueBase Database · checked Sep 21, 2026
2	Adec Innovations	Partial evidence	Irvine, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,304 contacts →
	Partial evidence “ADEC Innovations seamlessly delivers fully integrated, cost-effective industry expertise, business process & data management, and software services.” Source: RevenueBase Database · checked Sep 21, 2026
3	ESS	Strong evidence	Tempe, AZ, United StatesHQ checked Sep 21, 2026	n/a	1,201 contacts →
	Strong evidence “ESS is the leading provider of Environmental, Health & Safety (EHS) and Crisis Management sustainability software.” Source: RevenueBase Database · checked Sep 21, 2026
4	Alliance Technical Group	Partial evidence	Decatur, AL, United StatesHQ checked Sep 21, 2026	1,001-5,000	956 contacts →
	Partial evidence “Alliance is a new kind of environmental services company-powered by innovation, focused on service, and committed to client success.” Source: RevenueBase Database · checked Sep 21, 2026
5	Benchmark Gensuite	Strong evidence	Mason, OH, United StatesHQ checked Sep 21, 2026	501-1,000	626 contacts →
	Strong evidence “Benchmark Gensuite delivers AI-forward EHS, Sustainability, Quality, and Operational Risk software that helps global enterprises manage risk, ensure compliance, and drive safer…” Source: RevenueBase Database · checked Sep 21, 2026
6	3e	Strong evidence	Carlsbad, CA, United StatesHQ checked Sep 21, 2026	501-1,000	602 contacts →
	Strong evidence “3E is an AI-driven software and data company that delivers trusted compliance and sustainability intelligence-enabling companies to navigate complex chemical and product…” Source: RevenueBase Database · checked Sep 21, 2026
7	Velocityehs	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	501-1,000	568 contacts →
	Partial evidence “VelocityEHS is the global leader in EHS & Sustainability software, pioneering human-centered AI to make workplaces safer, faster.” Source: RevenueBase Database · checked Sep 21, 2026
8	Watershed	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	201-500	529 contacts →
	Indirect evidence “Watershed is the enterprise sustainability platform.” Source: RevenueBase Database · checked Sep 21, 2026
9	VLS Environmental Solutions, LLC	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	481 contacts →
	Partial evidence “At VLS, we address your company’s most significant hurdles with waste management and compliance through sustainable solutions.” Source: RevenueBase Database · checked Sep 21, 2026
10	Enhesa	Partial evidence	Arlington, VA, United StatesHQ checked Sep 21, 2026	201-500	474 contacts →
	Partial evidence “At Enhesa we empower the world’s largest businesses to achieve compliance, manage risk, and drive sustainability with clear, actionable insights.” Source: RevenueBase Database · checked Sep 21, 2026
11	ROUX	Partial evidence	Islandia, NY, United StatesHQ checked Sep 21, 2026	201-500	433 contacts →
	Partial evidence “Founded 40 years ago, Roux is recognized for being a highly effective, client-focused environmental consulting and management firm.” Source: RevenueBase Database · checked Sep 21, 2026
12	All4	Partial evidence	Kimberton, PA, United StatesHQ checked Sep 21, 2026	201-500	331 contacts →
	Partial evidence “ALL4 is a global consulting firm committed to shaping a sustainable future through innovative environmental, health, and safety (EHS) and digital solutions.” Source: RevenueBase Database · checked Sep 21, 2026
13	Picarro	Partial evidence	Santa Clara, CA, United StatesHQ checked Sep 21, 2026	201-500	297 contacts →
	Partial evidence “Reducing emissions, detecting leaks, mitigating risk, optimizing operations, ensuring compliance and advancing research are some of the challenges facing our clients.” Source: RevenueBase Database · checked Sep 21, 2026
14	ETQ	Strong evidence	Burlington, MA, United StatesHQ checked Sep 21, 2026	201-500	254 contacts →
	Strong evidence “Octave Reliance (formerly ETQ Reliance) is the leading Quality, EHS, Food Safety and Compliance management software for identifying, mitigating and preventing high-risk events…” Source: RevenueBase Database · checked Sep 21, 2026
15	Metiri Group	Partial evidence	Clovis, CA, United StatesHQ checked Sep 21, 2026	n/a	233 contacts →
	Partial evidence “Appl Inc is an environmental services company based out of 908 N Temperance Ave, Clovis, CA, United States.” Source: RevenueBase Database · checked Sep 21, 2026
16	Tanknology	Strong evidence	Austin, TX, United StatesHQ checked Sep 21, 2026	201-500	232 contacts →
	Strong evidence “Tanknology is the world's largest provider of tank testing and environmental compliance services for petroleum systems.” Source: RevenueBase Database · checked Sep 21, 2026
17	Opus Inspection Technologies	Indirect evidence	Brookfield, WI, United StatesHQ checked Sep 21, 2026	201-500	231 contacts →
	Indirect evidence “Opus Inspection Technologies is a leader in developing, implementing and managing innovative technology and system solutions that enable customers worldwide to address their…” Source: RevenueBase Database · checked Sep 21, 2026
18	Rees Scientific	Indirect evidence	Trenton, NJ, United StatesHQ checked Sep 21, 2026	51-200	210 contacts →
	Indirect evidence “Rees Scientific provides continuous automated monitoring to a limitless number of applications in a wide range of industries.” Source: RevenueBase Database · checked Sep 21, 2026
19	Plateau GRP	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 21, 2026	51-200	192 contacts →
	Indirect evidence “Plateau Grp provides innovative and agile IT solutions to customer challenges.” Source: RevenueBase Database · checked Sep 21, 2026
20	Source Intelligence	Partial evidence	San Diego, CA, United StatesHQ checked Sep 21, 2026	201-500	179 contacts →
	Partial evidence “Source Intelligence is a leading provider of supply chain compliance and ESG data management solutions.” Source: RevenueBase Database · checked Sep 21, 2026
21	Earthsoft	Partial evidence	Pensacola, FL, United StatesHQ checked Sep 21, 2026	51-200	168 contacts →
	Partial evidence “EarthSoft is the recognized leader in providing environmental and geotechnical data management and decision support systems for industrial organizations, government agencies…” Source: RevenueBase Database · checked Sep 21, 2026
22	Isometrix Software	Partial evidence	Alpharetta, GA, United StatesHQ checked Sep 21, 2026	201-500	164 contacts →
	Partial evidence “IsoMetrix is a global leader in integrated risk management software, helping organizations connect ESG, EHS, and GRC into a single, intelligent system.” Source: RevenueBase Database · checked Sep 21, 2026
23	Cleanair Engineering	Indirect evidence	Palatine, IL, United StatesHQ checked Sep 21, 2026	51-200	152 contacts →
	Indirect evidence “Since its founding in 1972, CleanAir has an established reputation for excellence on projects of all sizes, ranging from boiler, APC equipment and cooling tower efficiency testing…” Source: RevenueBase Database · checked Sep 21, 2026
24	Anguil Environmental Systems, INC	Partial evidence	Milwaukee, WI, United StatesHQ checked Sep 21, 2026	51-200	140 contacts →
	Partial evidence “Anguil Environmental provides highly-engineered, environmental equipment and service solutions that help clients solve complex industrial air and water challenges across the globe.” Source: RevenueBase Database · checked Sep 21, 2026
25	Mostardi Platt	Partial evidence	Elmhurst, IL, United StatesHQ checked Sep 21, 2026	51-200	140 contacts →
	Partial evidence “Since the passage of original environmental legislation nearly four decades ago, both private and public industry have turned to Mostardi Platt for guidance in complying with air…” Source: RevenueBase Database · checked Sep 21, 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 regulatory compliance software manufacturers. 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 regulatory compliance software manufacturers.
Partial evidence: Its own public description names part of environmental regulatory compliance software manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental regulatory compliance software manufacturers. 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 693 environmental regulatory compliance software manufacturers based in the United States

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Environmental regulatory compliance software manufacturers based in the United States at a glance

As of Sep 21, 2026

44.9%Verified-email coverage

26.4Average contacts per company

1-10Median size (employees)

4.0%Largest-city concentration · Houston

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

347

11-50

247

51-200

201-500

501-1,000

1,001-5,000

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 693 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 regulatory compliance software manufacturers, 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 regulatory compliance software manufacturers”. 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 regulatory compliance software manufacturers), 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 regulatory compliance software manufacturers, 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, 8,203 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 21, 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.

Environmental regulatory compliance software manufacturers by metro

Environmental regulatory compliance software manufacturers in Houston28

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 regulatory compliance software manufacturers, 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 regulatory compliance software manufacturers are there based in the United States?

RevenueBase identified 693 environmental regulatory compliance software manufacturers 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?

Sphera, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most environmental regulatory compliance software manufacturers?

Houston leads with 28 headquartered companies, followed by Austin (16) and Denver (12).

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 8,203 verified decision-maker contacts tracked across these 693 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 21, 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.