Company lists · Data refreshed November 2026

Top 25 Carbon neutrality consultants worldwide

RevenueBase identified 4,210 company matches for carbon neutrality consultants worldwide as of November 2026 and tracks 53,455 professional contacts across them, including 18,207 with verified work emails. The United Kingdom is the largest market and London the largest hub.

This list covers company matches for carbon neutrality consultants worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for carbon neutrality consultants follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
4,210Companies
53,455Contacts tracked
18,207Verified emails
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The 25 largest carbon neutrality consultants worldwide

Ranked by team size
Top 25 of 4,210 company matches for carbon neutrality consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLa Garenne-colombes, FranceHQ recorded Nov 6, 202610001+11,810 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchAustin, TX, United StatesHQ recorded Nov 6, 2026n/a1,164 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Nov 6, 20261,001-5,000956 contacts →

Exact match

“Anthesis guides clients to sustainable performance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchZurich, SwitzerlandHQ recorded Nov 6, 2026501-1,000790 contacts →

Exact match

“South Pole is the world's leading carbon asset developer and climate consultancy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 2026201-500589 contacts →

Exact match

“Watershed is the enterprise sustainability platform.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchAmsterdam, NY, United StatesHQ recorded Nov 6, 2026501-1,000566 contacts →

Exact match

“Organizations come to ACT when a climate target, regulatory requirement, or emissions challenge needs a solution.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchAmsterdam, NetherlandsHQ recorded Nov 6, 2026501-1,000556 contacts →

Exact match

“STX Group is a leading global firm in environmental commodities trading and climate finance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchMelbourne, AustraliaHQ recorded Nov 6, 2026201-500472 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchGeneva, SwitzerlandHQ recorded Nov 6, 202651-200411 contacts →

Exact match

“EcoSecurities is a global leader in climate solutions, harnessing the power of nature, technology, and finance to accelerate decarbonisation efforts worldwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchIrvine, MA, United StatesHQ recorded Nov 6, 2026201-500393 contacts →

Exact match

“We are Trio – global energy and sustainability advisors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-500391 contacts →

Exact match

“Our mission is to accelerate the move to a decarbonised future.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchPark Ridge, United StatesHQ recorded Nov 6, 2026201-500363 contacts →

Exact match

“National Utility Service, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMunich, GermanyHQ recorded Nov 6, 2026501-1,000346 contacts →

Exact match

“ClimatePartner makes climate action valuable for every company at any stage of their journey.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBirmingham, United KingdomHQ recorded Nov 6, 2026201-500346 contacts →

Exact match

“Climate change is without a doubt the greatest challenge we face in these times.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 2026201-500317 contacts →

Exact match

“3Degrees is a leading global climate solutions provider, pioneer of environmental markets, and Certified B Corporation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchPortland, OR, United StatesHQ recorded Nov 6, 2026201-500304 contacts →

Exact match

“At Cascade Energy, we believe in better.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchNyon, SwitzerlandHQ recorded Nov 6, 202651-200281 contacts →

Exact match

“SCB is a low carbon market leader providing bespoke solutions to help customers achieve their climate goals, carbon neutrality and net-zero commitments.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchRio De Janeiro, BrazilHQ recorded Nov 6, 20261,001-5,000273 contacts →

Exact match

“Com uma força propulsora de inovação, nos dedicamos a criar e aplicar soluções que elevam o padrão de nossos serviços no mercado.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchItalyHQ recorded Nov 6, 2026501-1,000250 contacts →

Exact match

“NEXTCHEM is MAIRE’s company dedicated to Sustainable Technology Solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchVincennes, FranceHQ recorded Nov 6, 202651-200240 contacts →

Exact match

“NEPSEN est un bureau d'études indépendant, spécialisé dans les métiers de la transition énergétique & écologique depuis 40 ans.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchWashington, DC, United StatesHQ recorded Nov 6, 202651-200235 contacts →

Exact match

“Founded in 2007, Verra is a global mission-driven nonprofit organization that develops and manages the leading standards for climate and sustainable development.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchStoke On Trent, United KingdomHQ recorded Nov 6, 2026501-1,000226 contacts →

Exact match

“Wardell Armstrong is now part of SLR which is a leading global consultancy, accelerating our ability to deliver the net zero transition and helping our clients address critical…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchHouston, UT, United StatesHQ recorded Nov 6, 2026201-500217 contacts →

Exact match

“Anew Climate is a global leader of diverse climate solutions, bringing innovative products and services to the public and private sectors to help reduce or offset their carbon…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchParis, FranceHQ recorded Nov 6, 202651-200212 contacts →

Exact match

“Founded by Alain Grandjean and Jean-Marc Jancovici, Carbone 4 is a leading independent consulting firm, specialized in energy transition, that offers its expertise to private or…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchLytham, United KingdomHQ recorded Nov 6, 2026501-1,000196 contacts →

Exact match

“Inenco Group has been acquired by Sustainable Energy First.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 4,210 carbon neutrality consultants worldwide

See the full list, filter by size, metro and specialty, and access 18,207 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Carbon neutrality consultants worldwide at a glance

As of Nov 6, 2026
34.1%Verified-email coverage
12.7Average contacts per company
1-10Median size (employees)
4.9%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
2,961
11-50
990
51-200
189
201-500
28
501-1,000
19
1,001-5,000
5
5,001-10,000
1
10001+
2

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for carbon neutrality consultants are linked below.
What qualifies
Company records worldwide whose business descriptions match “carbon neutrality consultants” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 18,207 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Carbon neutrality consultants by location

34 lists · largest first

Every Carbon neutrality consultants 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 SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “carbon neutrality consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many carbon neutrality consultants are there worldwide?

RevenueBase identified 4,210 company matches for carbon neutrality consultants worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Engie Solutions France tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most carbon neutrality consultants?

The United Kingdom leads with 604 companies, followed by the United States (390) and France (297). Every carbon neutrality consultants list by country and city is linked on this page.

Which city has the most carbon neutrality consultants?

London leads with 208 company records, followed by Paris (81) and Sao Paulo (50).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 18,207 professional contacts with verified work emails tracked across these 4,210 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.