Company lists · Data refreshed September 2026

Top 25 Esg compliance service providers based in the United States

Name: Esg compliance service 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 20, 2026 581 companies tracked

RevenueBase identified 581 esg compliance service providers headquartered in the United States as of September 2026 and tracks 8,342 professional contacts across them, including 2,685 with verified work emails. New York is the largest hub.

This list covers esg compliance service 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 20, 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 20, 2026 86% judged on-target in blind review

581Companies

8,342Contacts tracked

2,685Verified emails

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The 25 largest esg compliance service providers based in the United States

Ranked by team size

Top 25 of 581 esg compliance service providers based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to esg compliance service 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	Adec Innovations	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,304 contacts →
	Indirect evidence “ADEC Innovations seamlessly delivers fully integrated, cost-effective industry expertise, business process & data management, and software services.” Source: RevenueBase Database · checked Sep 20, 2026
2	Uniqus Consultech INC	Partial evidence	San Jose, CA, United StatesHQ checked Sep 20, 2026	501-1,000	675 contacts →
	Partial evidence “Uniqus Consultech is an AI and global tech-enabled consulting company that specializes in Accounting & Reporting Consulting, Governance, Risk & Compliance, Sustainability &…” Source: RevenueBase Database · checked Sep 20, 2026
3	SCS Global Services	Indirect evidence	Emeryville, CA, United StatesHQ checked Sep 20, 2026	201-500	667 contacts →
	Indirect evidence “Scientific Certification Systems, Inc, now doing business as SCS Global Services, is a trusted leader in third-party environmental, sustainability and food quality certification…” Source: RevenueBase Database · checked Sep 20, 2026
4	Antea Group USA	Indirect evidence	St Paul, MN, United StatesHQ checked Sep 20, 2026	1,001-5,000	658 contacts →
	Indirect evidence “Antea Group is an international engineering and environmental consulting firm specializing in full-service solutions in the fields of environment, health and safety, and…” Source: RevenueBase Database · checked Sep 20, 2026
5	Metiri Group	Indirect evidence	Clovis, CA, United StatesHQ checked Sep 20, 2026	n/a	233 contacts →
	Indirect evidence “Appl Inc is an environmental services company based out of 908 N Temperance Ave, Clovis, CA, United States.” Source: RevenueBase Database · checked Sep 20, 2026
6	Source Intelligence	Strong evidence	San Diego, CA, United StatesHQ checked Sep 20, 2026	201-500	179 contacts →
	Strong evidence “Source Intelligence is a leading provider of supply chain compliance and ESG data management solutions.” Source: RevenueBase Database · checked Sep 20, 2026
7	Keramida INC	Indirect evidence	Indianapolis, IN, United StatesHQ checked Sep 20, 2026	51-200	152 contacts →
	Indirect evidence “Founded in 1988, KERAMIDA is a multidisciplinary Sustainability, EHS & Engineering consulting firm grounded in evidence-based research and development.” Source: RevenueBase Database · checked Sep 20, 2026
8	Mostardi Platt	Indirect evidence	Elmhurst, IL, United StatesHQ checked Sep 20, 2026	51-200	140 contacts →
	Indirect 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 20, 2026
9	Onepointfive Opf.Degree	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	11-50	133 contacts →
	Indirect evidence “At OnePointFive we solve your sustainability focused business challenges by empowering your organization with expert-led solutions, embedded training, and cutting edge tools to…” Source: RevenueBase Database · checked Sep 20, 2026
10	Esgauge	Indirect evidence	New York, United StatesHQ checked Sep 20, 2026	11-50	120 contacts →
	Indirect evidence “ESGAUGE is the help desk uniquely designed for the professional service firm seeking customized data on U.S.” Source: RevenueBase Database · checked Sep 20, 2026
11	Cascadia Consulting Group	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	51-200	110 contacts →
	Indirect evidence “Cascadia Consulting Group is a majority women-owned consulting firm specializing in environmental and sustainability solutions.” Source: RevenueBase Database · checked Sep 20, 2026
12	Chambers Group, INC	Partial evidence	Costa Mesa, CA, United StatesHQ checked Sep 20, 2026	51-200	98 contacts →
	Partial evidence “Public agencies and businesses have been relying on Chambers Group to keep them in compliance with applicable federal, state, and/or local environmental laws, regulations, and…” Source: RevenueBase Database · checked Sep 20, 2026
13	Accountability	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	11-50	92 contacts →
	Indirect evidence “AccountAbility is a global advisory and standards firm that serves business, investors, governments, and multi-lateral organizations.” Source: RevenueBase Database · checked Sep 20, 2026
14	Malk Partners	Partial evidence	New York, NY, United StatesHQ checked Sep 20, 2026	51-200	84 contacts →
	Partial evidence “Malk Partners is the foremost consultancy advising private equity firms to create and protect value through environmental, social, and governance (ESG) management.” Source: RevenueBase Database · checked Sep 20, 2026
15	BSI Consulting	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 20, 2026	1,001-5,000	84 contacts →
	Indirect evidence “BSI Consulting offers comprehensive world-class solutions in environmental, health, safety (EHS), supply chain security, and sustainability.” Source: RevenueBase Database · checked Sep 20, 2026
16	Aarc Environmental	Partial evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	51-200	63 contacts →
	Partial evidence “As a leader in the environmental compliance services industry, AARC does more than just meeting the needs of clients today.” Source: RevenueBase Database · checked Sep 20, 2026
17	Greenplaces	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 20, 2026	51-200	62 contacts →
	Indirect evidence “Greenplaces helps businesses turn risk into a competitive advantage.” Source: RevenueBase Database · checked Sep 20, 2026
18	Whitman	Partial evidence	Somerset, NJ, United StatesHQ checked Sep 20, 2026	11-50	57 contacts →
	Partial evidence “Whitman is a full-service environmental, engineering, energy, waste management and EH & S compliance consulting firm with more than 37 years of professional experience.” Source: RevenueBase Database · checked Sep 20, 2026
19	3r Sustainability	Indirect evidence	Pittsburgh, PA, United StatesHQ checked Sep 20, 2026	11-50	56 contacts →
	Indirect evidence “3R Sustainability is a women-owned business providing consulting services rooted in science, supported by data, and driven by innovation, education, and continual improvement…” Source: RevenueBase Database · checked Sep 20, 2026
20	Bridge House Advisors	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	51-200	53 contacts →
	Partial evidence “Bridge House Advisors is a purposely built, full-service ESG and Sustainability advisory firm that is dedicated to building relationships with middle and upper middle market…” Source: RevenueBase Database · checked Sep 20, 2026
21	ONE Environmental Group, LLC	Indirect evidence	Midlothian, VA, United StatesHQ checked Sep 20, 2026	11-50	52 contacts →
	Indirect evidence “ONE offers environmental consulting and industrial services to commercial, industrial, and government clients that are regulated by environmental state and federal regulations or…” Source: RevenueBase Database · checked Sep 20, 2026
22	Integrated Environmental Solutions, LLC	Indirect evidence	Mckinney, TX, United StatesHQ checked Sep 20, 2026	51-200	51 contacts →
	Indirect evidence “Integrated Environmental Solutions, LLC.(IES) is a Small, Woman-Owned Business Enterprise with corporate headquarters centrally located in the Dallas/Fort Worth Metroplex in…” Source: RevenueBase Database · checked Sep 20, 2026
23	Spheros Environmental	Indirect evidence	Denver, CO, United StatesHQ checked Sep 20, 2026	201-500	48 contacts →
	Indirect evidence “Environmental insight for complex real-world decisions Spheros Environmental helps clients make clear, defensible decisions in complex environments.” Source: RevenueBase Database · checked Sep 20, 2026
24	7g Environmental Compliance Management	Partial evidence	Tallahassee, FL, United StatesHQ checked Sep 20, 2026	51-200	48 contacts →
	Partial evidence “7G Environmental Compliance Management (7G) is an environmental consulting firm headquartered in Tallahassee, Florida.” Source: RevenueBase Database · checked Sep 20, 2026
25	Growlity, INC	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	11-50	47 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 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: esg compliance service 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 esg compliance service providers.
Partial evidence: Its own public description names part of esg compliance service providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name esg compliance service 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 581 esg compliance service providers based in the United States

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Esg compliance service providers based in the United States at a glance

As of Sep 20, 2026

32.2%Verified-email coverage

14.4Average contacts per company

1-10Median size (employees)

5.9%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

388

11-50

150

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 581 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 esg compliance service 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 “esg compliance service 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 esg compliance service 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 esg compliance service 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, 2,685 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 20, 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.

Esg compliance service providers by metro

Esg compliance service providers in New York34
Esg compliance service providers 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 esg compliance service 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 esg compliance service providers are there based in the United States?

RevenueBase identified 581 esg compliance service 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?

Adec Innovations, headquartered in Irvine, tops this list with the largest team on record.

Which city has the most esg compliance service providers?

New York leads with 34 headquartered companies, followed by Houston (28) and Chicago (14).

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 2,685 verified decision-maker contacts tracked across these 581 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 20, 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.