Company lists · Data refreshed November 2026

Top 25 Climate policy advisors worldwide

RevenueBase identified 1,329 company matches for climate policy advisors worldwide as of November 2026 and tracks 19,840 professional contacts across them, including 7,458 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for climate policy advisors 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 climate policy advisors 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
1,329Companies
19,840Contacts tracked
7,458Verified emails
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The 25 largest climate policy advisors worldwide

Ranked by team size
Top 25 of 1,329 company matches for climate policy advisors 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 matchNew York, United StatesHQ recorded Nov 6, 20261,001-5,0001,446 contacts →

Exact match

“We are Environmental Defense Fund, a leading environmental nonprofit focused on stabilizing the climate while helping build strong and healthy communities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact 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
3Exact matchLondon, United KingdomHQ recorded Nov 6, 2026n/a645 contacts →

Exact match

“For over 26 years, our consultants have been supporting and guiding our clients to achieve low-carbon climate-resilient development.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchBerlin, GermanyHQ recorded Nov 6, 2026501-1,000525 contacts →

Exact match

“dena is a centre of excellence for the applied energy transition and climate protection.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchStockholm, SwedenHQ recorded Nov 6, 2026201-500476 contacts →

Exact match

“Stockholm Environment Institute – bridging science, policy and practice We are an international non-profit research institute that tackles climate, environment and sustainable…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact 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
7Exact matchWinnipeg, MB, CanadaHQ recorded Nov 6, 202651-200368 contacts →

Exact match

“The International Institute for Sustainable Development (IISD) is an award-winning think tank working to solve today’s greatest sustainable development challenges.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSan Francisco, United StatesHQ recorded Nov 6, 202651-200306 contacts →

Exact match

“CPI is an analysis and advisory organization with deep expertise in finance and policy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchWuppertal, GermanyHQ recorded Nov 6, 2026201-500260 contacts →

Exact match

“The Wuppertal Institute is an implementation-oriented research institute with roots in North Rhine-Westphalia and a global outlook.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBerlin, GermanyHQ recorded Nov 6, 2026201-500255 contacts →

Exact match

“adelphi consult is a leading independent consultancy specialising in climate, environment and development.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBilbao, SpainHQ recorded Nov 6, 2026201-500229 contacts →

Exact match

“In Global Factor we started to provide professional services on the subject of climate change in the year 2004, prior to the ratification of the Kyoto Protocol or the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact 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
13Exact matchWaterloo, United KingdomHQ recorded Nov 6, 202651-200184 contacts →

Exact match

“E3G is an independent think tank working to deliver a safe climate for all.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchZurich, SwitzerlandHQ recorded Nov 6, 202651-200170 contacts →

Exact match

“myclimate is your partner for effective climate protection – both locally and globally.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchHayama, JapanHQ recorded Nov 6, 202651-200170 contacts →

Exact match

“Established by an initiative of the Japanese Government in 1998, the Institute for Global Environmental Strategies (IGES) carries out policy-oriented research in order to develop…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAbu Dhabi, United Arab EmiratesHQ recorded Nov 6, 202651-200150 contacts →

Exact match

“We United.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchParis, FranceHQ recorded Nov 6, 202611-50146 contacts →

Exact match

“The Shift Project is an innovative entity, an interface between businesses, the academic world, civil society, and public and institutional authorities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBerlin, GermanyHQ recorded Nov 6, 202651-200143 contacts →

Exact match

“Agora Energiewende develops scientifically sound and politically feasible strategies for a successful pathway to climate neutrality – in Germany, Europe and internationally.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchLeioa, SpainHQ recorded Nov 6, 202651-200140 contacts →

Exact match

“The Basque Centre for Climate Change (BC3) is an international and multidisciplinary research institute based in Bilbao, Spain.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchWashington, DC, United StatesHQ recorded Nov 6, 202611-50138 contacts →

Exact match

“The NDC Partnership is a global coalition advancing the Paris Agreement by strengthening capacity and collaboration for country-owned climate and development action.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchParis, FranceHQ recorded Nov 6, 202651-200130 contacts →

Exact match

“Blunomy brings together deep sector knowledge, technical and data expertise, and real-world business and investment experience.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchRotterdam, NetherlandsHQ recorded Nov 6, 202651-200123 contacts →

Exact match

“The Global Center on Adaptation (GCA) is an international organisation which works as a solutions broker to accelerate action and support for adaptation solutions, from the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchDes Moines, IA, United StatesHQ recorded Nov 6, 202651-200102 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 · Nov 6, 2026 · View company records in RevenueBase
24Exact matchVienna, AustriaHQ recorded Nov 6, 202651-200102 contacts →

Exact match

“Kommunalkredit Public Consulting pursues the goal of making long-term positive contributions to the environment, the economy, and society by managing funding programs and by…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchCape Town, South AfricaHQ recorded Nov 6, 202651-200101 contacts →

Exact match

“SouthSouthNorth connects governments, the private sector, and communities to deliver resilient climate solutions.”

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

Showing 25 of 1,329 climate policy advisors worldwide

See the full list, filter by size, metro and specialty, and access 7,458 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Climate policy advisors worldwide at a glance

As of Nov 6, 2026
37.6%Verified-email coverage
14.9Average contacts per company
1-10Median size (employees)
4.1%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
872
11-50
351
51-200
78
201-500
11
501-1,000
7
1,001-5,000
4
10001+
3

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 climate policy advisors are linked below.
What qualifies
Company records worldwide whose business descriptions match “climate policy advisors” 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 7,458 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.

Climate policy advisors by location

14 lists · largest first

Every Climate policy 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 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 “climate policy advisors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many climate policy advisors are there worldwide?

RevenueBase identified 1,329 company matches for climate policy advisors 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?

Environmental Defense Fund tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most climate policy advisors?

The United States leads with 185 companies, followed by the United Kingdom (91) and France (83). Every climate policy advisors list by country and city is linked on this page.

Which city has the most climate policy advisors?

London leads with 54 company records, followed by Berlin (34) and Paris (28).

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 7,458 professional contacts with verified work emails tracked across these 1,329 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.