Company lists · Data refreshed September 2026

Top 25 Carbon accounting consultancies worldwide

RevenueBase identified 2,518 company matches for carbon accounting consultancies worldwide as of September 2026 and tracks 20,701 professional contacts across them, including 7,500 with verified work emails. The United Kingdom is the largest market and London the largest hub.

This list covers company matches for carbon accounting consultancies 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 September 27, 2026. Country and city lists for carbon accounting consultancies 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 Sep 27, 2026 How this list was built
2,518Companies
20,701Contacts tracked
7,500Verified emails
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The 25 largest carbon accounting consultancies worldwide

Ranked by team size
Top 25 of 2,518 company matches for carbon accounting consultancies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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 matchZurich, SwitzerlandHQ recorded Sep 27, 2026501-1,000811 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchAmsterdam, NetherlandsHQ recorded Sep 27, 2026501-1,000556 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 2026201-500529 contacts →

Exact match

“Watershed is the enterprise sustainability platform.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchMünchen, GermanyHQ recorded Sep 27, 2026501-1,000376 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchNew York, NY, United StatesHQ recorded Sep 27, 2026201-500305 contacts →

Exact match

“Greenly is on a mission to democratize access to science-backed climate intelligence, transforming sustainability from a compliance burden into a strategic competitive advantage.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchRio De Janeiro, BrazilHQ recorded Sep 27, 20261,001-5,000244 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 · Sep 27, 2026 · View company records in RevenueBase
7Exact matchIndore, IndiaHQ recorded Sep 27, 2026201-500203 contacts →

Exact match

“EKI Energy Services Ltd.(EKI), erstwhile EnKing International in the climate sector globally, is a leading Carbon Credit Developer & Supplier across the globe.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-200192 contacts →

Exact match

“Investing in carbon projects is essential to tackling climate change.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchKingston Upon Thames, United KingdomHQ recorded Sep 27, 202651-200172 contacts →

Exact match

“We work with FDs, CEOs, and business owners throughout the UK - delivering new perspectives and insights to increase profitability, and reduce their carbon footprint.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchParis, FranceHQ recorded Sep 27, 202651-200155 contacts →

Exact match

“Expert de la réconciliation entre économie et écologie, R3 fait basculer les entreprises vers une transition environnementale et sociétale réellement performante.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchJaipur, IndiaHQ recorded Sep 27, 2026501-1,000144 contacts →

Exact match

“Greenfinch Real Estate Engineers and Consultants Pvt.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchNoida, IndiaHQ recorded Sep 27, 202651-200143 contacts →

Exact match

“GreenTree Global is one of the leading Sustainability Consulting organisations providing Energy Efficiency & Climate Change Services like Integrated Sustainability Services…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202651-200141 contacts →

Exact match

“Stok leads organizations to decarbonize now.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchGurgaon, IndiaHQ recorded Sep 27, 202651-200140 contacts →

Exact match

“Earthood is a pioneering force in the carbon offset verification industry with a reputation as an internationally acclaimed auditing & certification firm, providing strategic…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchMesa, AZ, United StatesHQ recorded Sep 27, 2026201-500137 contacts →

Exact match

“Persefoni AI Inc.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchStockholm, SwedenHQ recorded Sep 27, 202651-200125 contacts →

Exact match

“Normative provides science-based carbon accounting software and tailored advice from net-zero experts, enabling companies to reduce their carbon footprints.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchMclean, VA, United StatesHQ recorded Sep 27, 202651-200124 contacts →

Exact match

“RE Tech Advisors, a Legence Company, offers an integrated suite of solutions designed to drive building performance, decrease costs, and overcome any project challenge.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchCardiff, United KingdomHQ recorded Sep 27, 202651-200124 contacts →

Exact match

“We are an award-winning energy consultancy and certified B Corp™.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-200115 contacts →

Exact match

“At ZTP, we’re committed to accelerating the transition to a more sustainable future by reducing the negative impact of human activity on our planet - ecologically, financially…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-200115 contacts →

Exact match

“Longevity Partners is a multidisciplinary energy and sustainability consultancy.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchBerlin, GermanyHQ recorded Sep 27, 202651-200114 contacts →

Exact match

“Plan A, a Diginex Company, is Europe’s leading provider of corporate carbon accounting and decarbonisation software, enabling companies to turn emissions intelligence into…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchDes Moines, IA, United StatesHQ recorded Sep 27, 202651-200109 contacts →

Exact match

“EcoEngineers, an LRQA company, is a consulting, auditing, and advisory firm with an exclusive focus on the energy transition and decarbonization.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchBangalore, IndiaHQ recorded Sep 27, 202651-20091 contacts →

Exact match

“Kosher Climate is where Corporate aspirations are met with Climate Change Goals.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchGreifenberg, GermanyHQ recorded Sep 27, 202611-5085 contacts →

Exact match

“Seit unterstützt die DFGE Unternehmen dabei, Nachhaltigkeit messbar und strategisch nutzbar zu machen.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchGateshead, United KingdomHQ recorded Sep 27, 202651-20081 contacts →

Exact match

“We enable businesses to succeed in the environmental components of their ESG strategies through comprehensive net zero consulting services and ground-breaking carbon and energy…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 2,518 carbon accounting consultancies worldwide

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Carbon accounting consultancies worldwide at a glance

As of Sep 27, 2026
36.2%Verified-email coverage
8.2Average contacts per company
1-10Median size (employees)
5.2%Largest-city concentration · London
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
1,820
11-50
562
51-200
104
201-500
16
501-1,000
9
1,001-5,000
4

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 accounting consultancies are linked below.
What qualifies
Company records worldwide whose business descriptions match “carbon accounting consultancies” 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 7,500 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 September 27, 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 accounting consultancies by location

14 lists · largest first

Every Carbon accounting consultancies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 accounting consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many carbon accounting consultancies are there worldwide?

RevenueBase identified 2,518 company matches for carbon accounting consultancies worldwide as of September 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?

South Pole tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most carbon accounting consultancies?

The United Kingdom leads with 411 companies, followed by the United States (182) and France (151). Every carbon accounting consultancies list by country and city is linked on this page.

Which city has the most carbon accounting consultancies?

London leads with 131 company records, followed by Paris (46) and Sydney (27).

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 7,500 professional contacts with verified work emails tracked across these 2,518 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 September 27, 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.