Company lists · Data refreshed September 2026

Top 25 Sustainability auditors based in the United States

Name: Sustainability auditors based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 489 companies tracked

RevenueBase identified 489 sustainability auditors headquartered in the United States as of September 2026 and tracks 5,355 professional contacts across them, including 2,317 with verified work emails. New York is the largest hub.

This list covers sustainability auditors 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 22, 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 22, 2026 86% judged on-target in blind review

489Companies

5,355Contacts tracked

2,317Verified emails

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The 25 largest sustainability auditors based in the United States

Ranked by team size

Top 25 of 489 sustainability auditors based in the United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to sustainability auditors: 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	SCS Global Services	Partial evidence	Emeryville, CA, United StatesHQ checked Sep 22, 2026	201-500	667 contacts →
	Partial 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 22, 2026
2	TRIO	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 22, 2026	201-500	383 contacts →
	Indirect evidence “We are Trio – built from Edison Energy, Alfa Energy, and Altenex Energy.” Source: RevenueBase Database · checked Sep 22, 2026
3	B LAB	Indirect evidence	Berwyn, PA, United StatesHQ checked Sep 22, 2026	51-200	169 contacts →
	Indirect evidence “B Lab is transforming the global economy to benefit all people, communities, and the planet.” Source: RevenueBase Database · checked Sep 22, 2026
4	Enveritas	Indirect evidence	New York, NY, United StatesHQ checked Sep 22, 2026	51-200	169 contacts →
	Indirect evidence “Enveritas is the independent nonprofit working to lift smallholder farmers out of poverty and protect the environment for the next generation.” Source: RevenueBase Database · checked Sep 22, 2026
5	Green Business Certification Inc. Gbci	Indirect evidence	Washington, DC, United StatesHQ checked Sep 22, 2026	n/a	156 contacts →
	Indirect evidence “The premier organization independently recognizing excellence in green business industry performance and practice globally.” Source: RevenueBase Database · checked Sep 22, 2026
6	Keramida INC	Partial evidence	Indianapolis, IN, United StatesHQ checked Sep 22, 2026	51-200	152 contacts →
	Partial 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 22, 2026
7	Worldly	Partial evidence	Concord, CA, United StatesHQ checked Sep 22, 2026	51-200	144 contacts →
	Partial evidence “Worldly is the leading sustainability and supply chain intelligence platform for the consumer goods industry.” Source: RevenueBase Database · checked Sep 22, 2026
8	Pulsora	Partial evidence	San Mateo, CA, United StatesHQ checked Sep 22, 2026	51-200	98 contacts →
	Partial evidence “Pulsora is a sustainability management platform that helps businesses simplify and consolidate complex ESG operations, processes, and data in one centralized hub.” Source: RevenueBase Database · checked Sep 22, 2026
9	Accountability	Indirect evidence	New York, NY, United StatesHQ checked Sep 22, 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 22, 2026
10	Verdani Partners	Partial evidence	Carlsbad, CA, United StatesHQ checked Sep 22, 2026	51-200	89 contacts →
	Partial evidence “Verdani Partners is a full service sustainability consulting firm specialized in corporate sustainability, LEED certification and greening and retrofitting existing buildings.” Source: RevenueBase Database · checked Sep 22, 2026
11	BSI Consulting	Partial evidence	Herndon, VA, United StatesHQ checked Sep 22, 2026	1,001-5,000	84 contacts →
	Partial evidence “BSI Consulting offers comprehensive world-class solutions in environmental, health, safety (EHS), supply chain security, and sustainability.” Source: RevenueBase Database · checked Sep 22, 2026
12	WAP Sustainability	Partial evidence	Chattanooga, United StatesHQ checked Sep 22, 2026	51-200	81 contacts →
	Partial evidence “From WAP Sustainability works with organizations as an outsourced sustainability service.” Source: RevenueBase Database · checked Sep 22, 2026
13	Eagle Certification Group	Indirect evidence	Dayton, OH, United StatesHQ checked Sep 22, 2026	11-50	80 contacts →
	Indirect evidence “Since 1994, EAGLE has built an excellent reputation by providing third party auditing services that are objective and value-added.” Source: RevenueBase Database · checked Sep 22, 2026
14	Baumann Consulting	Indirect evidence	Washington, DC, United StatesHQ checked Sep 22, 2026	51-200	63 contacts →
	Indirect evidence “Baumann Consulting is driven to deliver solutions for a carbon-neutral real estate industry.” Source: RevenueBase Database · checked Sep 22, 2026
15	Greenplaces	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 22, 2026	51-200	62 contacts →
	Indirect evidence “Greenplaces helps businesses turn risk into a competitive advantage.” Source: RevenueBase Database · checked Sep 22, 2026
16	Brightworks Sustainability	Partial evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	51-200	61 contacts →
	Partial evidence “Recognized for advanced subject matter expertise, wide-ranging technical resources, creative problem-solving, and excellence in professional practice, Brightworks Sustainability…” Source: RevenueBase Database · checked Sep 22, 2026
17	3r Sustainability	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 22, 2026	11-50	56 contacts →
	Partial 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 22, 2026
18	Primus Auditing OPS	Indirect evidence	Santa Maria, CA, United StatesHQ checked Sep 22, 2026	51-200	56 contacts →
	Indirect evidence “Overview: Headquartered in Santa Maria, CA, Primus Auditing Ops provides the fresh produce industry with specialized services related to the safe production and handling of…” Source: RevenueBase Database · checked Sep 22, 2026
19	Sustainable Investment Group SIG	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 22, 2026	11-50	52 contacts →
	Indirect evidence “Sustainable Investment Group, LLC (SIG) is a full-service sustainable building consulting firm that provides environmentally focused solutions to design, construction, and real…” Source: RevenueBase Database · checked Sep 22, 2026
20	Cradle To Cradle Products Innovation Institute	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 22, 2026	11-50	46 contacts →
	Indirect evidence “We certify what matters: Products that are good for people and the planet.” Source: RevenueBase Database · checked Sep 22, 2026
21	Sustainable Solutions Corporation	Indirect evidence	Royersford, PA, United StatesHQ checked Sep 22, 2026	11-50	43 contacts →
	Indirect 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 22, 2026
22	Inogen Alliance	Partial evidence	St. Paul, United StatesHQ checked Sep 22, 2026	n/a	38 contacts →
	Partial evidence “Inogen Alliance is a global network of environment, health, safety, sustainability and ESG consulting companies working together to provide one point of contact to guide…” Source: RevenueBase Database · checked Sep 22, 2026
23	Sumerra	Indirect evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	11-50	36 contacts →
	Indirect evidence “Sumerra was created to support brands and industry organizations in advancing environmental, health and safety, and social compliance initiatives throughout the global…” Source: RevenueBase Database · checked Sep 22, 2026
24	Association Of Professional Social Compliance Auditors Inc. Apsca	Partial evidence	Washington, United StatesHQ checked Sep 22, 2026	11-50	34 contacts →
	Partial evidence “APSCA was created to enhance the professionalism, consistency and credibility of individual auditors and organizations performing independent social compliance audits, and to…” Source: RevenueBase Database · checked Sep 22, 2026
25	Center For Sustainability And Excellence - CSE	Partial evidence	Chicago, IL, United StatesHQ checked Sep 22, 2026	11-50	34 contacts →
	Partial evidence “The Center for Sustainability and Excellence (CSE) is a global leader in ESG consulting, Net Zero strategy, and Circular Economy solutions.” Source: RevenueBase Database · checked Sep 22, 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: sustainability auditors. 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 sustainability auditors.
Partial evidence: Its own public description names part of sustainability auditors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainability auditors. 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 489 sustainability auditors based in the United States

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Sustainability auditors based in the United States at a glance

As of Sep 22, 2026

43.3%Verified-email coverage

11.0Average contacts per company

1-10Median size (employees)

6.7%Largest-city concentration · New York

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

353

11-50

106

51-200

201-500

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 489 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 sustainability auditors, 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 “sustainability auditors”. 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 sustainability auditors), 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 sustainability auditors, 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, 2,317 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 22, 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.

Sustainability auditors by metro

Sustainability auditors in New York33

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 sustainability auditors, 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 sustainability auditors are there based in the United States?

RevenueBase identified 489 sustainability auditors 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?

SCS Global Services, headquartered in Emeryville, tops this list with the largest team on record.

Which city has the most sustainability auditors?

New York leads with 33 headquartered companies, followed by Chicago (18) and Los Angeles (18).

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 2,317 verified decision-maker contacts tracked across these 489 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 22, 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.