Company lists · Data refreshed September 2026

Top 25 Compliance carbon advisors worldwide

RevenueBase identified 16,704 compliance carbon advisors worldwide as of September 2026 and tracks 167,460 professional contacts across them, including 57,722 with verified work emails. The United States is the largest market and London the largest hub.

This list covers compliance carbon advisors worldwide, 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. Country and city lists for compliance carbon advisors follow the table.

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
16,704Companies
167,460Contacts tracked
57,722Verified emails
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The 25 largest compliance carbon advisors worldwide

Ranked by team size
Top 25 of 16,704 compliance carbon advisors worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to compliance carbon advisors: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLa Garenne-colombes, FranceHQ checked Sep 19, 202610001+12,011 contacts →

Indirect evidence

“Les activités Infrastructures Energétiques Locales d’ENGIE accompagnent les collectivités, les industries et le secteur du bâtiment sur la voie de la décarbonation.”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceLondon, United KingdomHQ checked Sep 19, 20265,001-10,0009,119 contacts →

Indirect evidence

“Sustainability is our business.”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceMunich, GermanyHQ checked Sep 19, 20261,001-5,0004,632 contacts →

Indirect evidence

“Roland Berger is the only leading global strategy consultancy of European origin.”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceLondon, United KingdomHQ checked Sep 19, 20261,001-5,0003,848 contacts →

Indirect evidence

“SLR is a committed partner in our clients’ sustainability journeys.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceSao Paulo, BrazilHQ checked Sep 19, 202610001+2,599 contacts →

Indirect evidence

“Our mission is to promote ecological transformation by investing in decarbonization projects, circular economy, energy transition, and environmental regeneration.”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceSeattle, WA, United StatesHQ checked Sep 19, 20261,001-5,0002,213 contacts →

Indirect evidence

“We're a national construction and energy services company dedicated to innovating the waste and climate harm out of the built environment.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceLondon, United KingdomHQ checked Sep 19, 20261,001-5,0002,179 contacts →

Indirect evidence

“Baringa is a global consulting firm that helps leaders drive meaningful change and create value.”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceParis, JapanHQ checked Sep 19, 20261,001-5,0001,854 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidencePhoenix, AZ, United StatesHQ checked Sep 19, 20261,001-5,0001,629 contacts →

Indirect evidence

“Founded on a commitment to sound science and creative solutions, SWCA is a leader in environmental and management consulting services.”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceLittle Rock, AR, United StatesHQ checked Sep 19, 20261,001-5,0001,529 contacts →

Indirect evidence

“Onterris (formerly Montrose Environmental Group) was one of the first to see environmental responsibility as not just an imperative but as a strategic asset.”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceIrvine, CA, United StatesHQ checked Sep 19, 20261,001-5,0001,304 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 19, 2026
12Indirect evidenceHøjbjerg, DenmarkHQ checked Sep 19, 2026n/a1,176 contacts →

Indirect evidence

“Miljø er vores kernekompetence og vores ansvar.”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceAustin, TX, United StatesHQ checked Sep 19, 2026n/a1,145 contacts →

Indirect evidence

“OLA Sustainability, LLC OLA Sustainability is a consulting firm that focuses on integrating sustainable practices into commercial and multifamily design projects.”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceLondon, United KingdomHQ checked Sep 19, 20261,001-5,000894 contacts →

Indirect evidence

“Anthesis guides clients to sustainable performance.”

Source: RevenueBase Database · checked Sep 19, 2026
15Partial evidencePort Washington, WI, United StatesHQ checked Sep 19, 20261,001-5,000838 contacts →

Partial evidence

“Franklin Energy delivers end-to-end sustainability solutions through a portfolio of intelligent products and services that lower energy costs, reduce carbon and waste, and grow…”

Source: RevenueBase Database · checked Sep 19, 2026
16Partial evidenceOakland, CA, United StatesHQ checked Sep 19, 2026201-500772 contacts →

Partial evidence

“Our mission is simple - to combat climate change through market-based, cost-effective energy, carbon, and water management solutions that make big impacts.”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceSevilla, SpainHQ checked Sep 19, 20261,001-5,000688 contacts →

Indirect evidence

“INERCO, with 30 years of experience, offers comprehensive services and develops advanced technologies that contribute to sustainable industrial development, acting as a leader in…”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceLondon, United KingdomHQ checked Sep 19, 20261,001-5,000670 contacts →

Indirect evidence

“Click the 'Follow' button and explore careers at Ricardo on our 'Jobs' and 'Life' tabs and at careers.ricardo.com.”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceSt Paul, MN, United StatesHQ checked Sep 19, 20261,001-5,000658 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 19, 2026
20Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 19, 2026501-1,000556 contacts →

Indirect evidence

“As the leading environmental solutions partner for organizations globally, ACT helps its partners meet increasing environmental action and disclosure expectations from regulators…”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 19, 2026201-500529 contacts →

Indirect evidence

“Watershed is the enterprise sustainability platform.”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceMelbourne, AustraliaHQ checked Sep 19, 2026201-500468 contacts →

Indirect evidence

“ADP Consulting, an Ayesa company, is a sustainability-led engineering consultancy on a quest to inspire a better world through influence and design.”

Source: RevenueBase Database · checked Sep 19, 2026
23Indirect evidenceBelo Horizonte, BrazilHQ checked Sep 19, 2026501-1,000448 contacts →

Indirect evidence

“Somos uma das maiores consultorias em meio ambiente do Brasil, fundada em 1997, contando, hoje, com uma equipe técnica multidisciplinar permanente, que congrega profissionais das…”

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceWall Township, NJ, United StatesHQ checked Sep 19, 2026201-500447 contacts →

Indirect evidence

“We are Groundwater & Environmental Services, Inc, better known as GES.”

Source: RevenueBase Database · checked Sep 19, 2026
25Indirect evidenceIslandia, NY, United StatesHQ checked Sep 19, 2026201-500433 contacts →

Indirect 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 19, 2026

Showing 25 of 16,704 compliance carbon advisors worldwide

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Compliance carbon advisors worldwide at a glance

As of Sep 19, 2026
34.5%Verified-email coverage
10.0Average contacts per company
1-10Median size (employees)
2.3%Largest-city concentration · London
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
12,424
11-50
3,446
51-200
598
201-500
122
501-1,000
23
1,001-5,000
43
5,001-10,000
10
10001+
10

Email recency is reported on each country list linked below.

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 compliance carbon advisors, 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.
Coverage
Every country. Country and city lists for compliance carbon advisors are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “compliance carbon advisors”. 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 compliance carbon advisors), 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 compliance carbon advisors, and records with no verified work email.
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, 57,722 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.

Compliance carbon advisors by location

73 lists · largest first

Every Compliance carbon advisors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 compliance carbon advisors, 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 compliance carbon advisors are there worldwide?

RevenueBase identified 16,704 compliance carbon advisors worldwide 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?

Engie Solutions France, headquartered in La Garenne-Colombes, tops this list with the largest team on record.

Which country has the most compliance carbon advisors?

The United States leads with 1,815 companies, followed by Brazil (1,756) and the United Kingdom (1,070). Every compliance carbon advisors list by country and city is linked on this page.

Which city has the most compliance carbon advisors?

London leads with 389 headquartered companies, followed by Sao Paulo (294) and Paris (246).

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 57,722 verified decision-maker contacts tracked across these 16,704 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.