Company lists · Data refreshed November 2026

Top 25 Climate action organizations worldwide

Name: Climate action organizations worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 10,248 companies tracked

RevenueBase identified 10,248 company matches for climate action organizations worldwide as of November 2026 and tracks 128,904 professional contacts across them, including 33,331 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for climate action organizations 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 action organizations 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

10,248Companies

128,904Contacts tracked

33,331Verified emails

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The 25 largest climate action organizations worldwide

Ranked by team size

Top 25 of 10,248 company matches for climate action organizations 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Team For The Planet	Exact match	Lyon, FranceHQ recorded Nov 6, 2026	n/a	11,435 contacts →
	Exact match “Entrepreneurship in the service of the climate emergency!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Carrier	Exact match	Palm Beach Gardens, FL, United StatesHQ recorded Nov 6, 2026	10001+	8,659 contacts →
	Exact match “Carrier is a global leader in intelligent climate and energy solutions, pioneering sustainable innovations in climate technologies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Greenpeace	Exact match	Amsterdam, NetherlandsHQ recorded Nov 6, 2026	n/a	3,207 contacts →
	Exact match “Greenpeace is comprised of 25 independent national/regional organisations in over 55 countries across Europe, the Americas, Africa, Asia and the Pacific, as well as a…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	LA Fresque DU Climat	Exact match	Paris, FranceHQ recorded Nov 6, 2026	n/a	2,481 contacts →
	Exact match “La Fresque du Climat » est un atelier ludique, participatif et créatif sur le changement climatique.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	ADEME	Exact match	Montrouge, FranceHQ recorded Nov 6, 2026	501-1,000	1,827 contacts →
	Exact match “À l’ADEME - l’Agence de la transition écologique, nous sommes résolument engagés dans la lutte contre le réchauffement climatique et la dégradation des ressources.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Environmental Defense Fund	Exact match	New York, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,446 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
7	Sierra Club	Exact match	Oakland, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	1,156 contacts →
	Exact match “At the Sierra Club, we believe in the power of togetherness.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Powur, PBC	Exact match	San Diego, United StatesHQ recorded Nov 6, 2026	n/a	1,155 contacts →
	Exact match “The Powur Mission: Accelerate the adoption of clean energy worldwide We're empowering our community of homeowners and advisors to thrive in the global shift to sustainable energy.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	South Pole	Exact match	Zurich, SwitzerlandHQ recorded Nov 6, 2026	501-1,000	790 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
10	Oxfam Novib	Exact match	The Hague, NetherlandsHQ recorded Nov 6, 2026	201-500	753 contacts →
	Exact match “Wij strijden voor gelijkheid en we staan achter de mensen die opstaan voor gelijkheid.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Igreen Energy Oficial	Exact match	Uberlândia, BrazilHQ recorded Nov 6, 2026	n/a	710 contacts →
	Exact match “Olá, somos a iGreen Energy, uma empresa Mineira da cidade de Uberlândia que nasceu com o propósito de conscientizar as pessoas e empresas da importância de um futuro melhor…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Climatebase	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	n/a	670 contacts →
	Exact match “Climatebase is the community for climate & sustainability professionals, and the world's #1 platform for green jobs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	German Energy Agency Dena	Exact match	Berlin, GermanyHQ recorded Nov 6, 2026	501-1,000	525 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
14	C40 Cities	Exact match	London, NY, United KingdomHQ recorded Nov 6, 2026	201-500	518 contacts →
	Exact match “C40 is a network of nearly 100 mayors of the world’s leading cities who are working to deliver the urgent action needed right now to confront the climate crisis and create a…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	CRAM	Exact match	Le Havre, FranceHQ recorded Nov 6, 2026	501-1,000	494 contacts →
	Exact match “Nous sommes des femmes et des hommes engagés, qui chaque matin se lèvent avec une mission : être des acteurs clés de la transition énergétique.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	NRGI	Exact match	Aarhus, DenmarkHQ recorded Nov 6, 2026	1,001-5,000	480 contacts →
	Exact match “NRGi is an accelerator for the green transition in Denmark - and a better future.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	STARK	Exact match	Horley, United KingdomHQ recorded Nov 6, 2026	201-500	472 contacts →
	Exact match “Our mission: We’ve been on a mission to help identify energy waste, save costs and reduce carbon emissions for more than 40 years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	2tonnes	Exact match	Paris, FranceHQ recorded Nov 6, 2026	n/a	470 contacts →
	Exact match “2tonnes is an immersive workshop to explore the future and act together for the climate.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	RARE	Exact match	Arlington, VA, United StatesHQ recorded Nov 6, 2026	51-200	396 contacts →
	Exact match “Rare is a global leader in driving social change for people and nature.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Ikea Foundation	Exact match	Leiden, NetherlandsHQ recorded Nov 6, 2026	51-200	396 contacts →
	Exact match “The IKEA Foundation fights global warming with and for the many people.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	The Carbon Trust	Exact match	London, United KingdomHQ recorded Nov 6, 2026	201-500	391 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
22	WRAP	Exact match	London, United KingdomHQ recorded Nov 6, 2026	201-500	377 contacts →
	Exact match “Our vision is a world transformed, in which Circular Living is commonplace.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Climate Fresk	Exact match	Paris, FranceHQ recorded Nov 6, 2026	n/a	373 contacts →
	Exact match “The Climate Fresk is a serious game about climate change, based on collective intelligence and creativity.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Climatepartner	Exact match	Munich, GermanyHQ recorded Nov 6, 2026	501-1,000	346 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
25	VEIC	Exact match	Winooski, DC, United StatesHQ recorded Nov 6, 2026	201-500	344 contacts →
	Exact match “For 40 years, VEIC has helped energy leaders nationwide meet their clean energy goals.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “climate action organizations”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 10,248 climate action organizations worldwide

See the full list, filter by size, metro and specialty, and access 33,331 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Climate action organizations worldwide at a glance

As of Nov 6, 2026

25.9%Verified-email coverage

12.6Average contacts per company

1-10Median size (employees)

3.0%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

6,596

11-50

2,661

51-200

644

201-500

160

501-1,000

1,001-5,000

5,001-10,000

10001+

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 action organizations are linked below.
What qualifies: Company records worldwide whose business descriptions match “climate action organizations” 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 33,331 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 action organizations by location

67 lists · largest first

Every Climate action organizations 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 action organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many climate action organizations are there worldwide?

RevenueBase identified 10,248 company matches for climate action organizations 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?

Team For The Planet tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most climate action organizations?

The United States leads with 1,712 companies, followed by the United Kingdom (683) and France (545). Every climate action organizations list by country and city is linked on this page.

Which city has the most climate action organizations?

London leads with 312 company records, followed by Paris (196) and New York (159).

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 33,331 professional contacts with verified work emails tracked across these 10,248 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.