Company lists · Data refreshed September 2026

Top 25 Climate change education organizations worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 7,027 companies tracked

RevenueBase identified 7,027 climate change education organizations worldwide as of September 2026 and tracks 67,404 professional contacts across them, including 14,151 with verified work emails. The United States is the largest market and London the largest hub.

This list covers climate change education organizations 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 climate change education organizations 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

7,027Companies

67,404Contacts tracked

14,151Verified emails

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The 25 largest climate change education organizations worldwide

Ranked by team size

Top 25 of 7,027 climate change education organizations worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to climate change education organizations: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	LA Fresque DU Climat	Strong evidence	Paris, FranceHQ checked Sep 19, 2026	n/a	3,345 contacts →
	Strong evidence “La Fresque du Climat » est un atelier ludique, participatif et créatif sur le changement climatique.” Source: RevenueBase Database · checked Sep 19, 2026
2	Environmental Defense Fund	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,352 contacts →
	Partial evidence “We are Environmental Defense Fund, a leading environmental nonprofit focused on stabilizing the climate while helping build strong and healthy communities.” Source: RevenueBase Database · checked Sep 19, 2026
3	Sierra Club	Indirect evidence	Oakland, CA, United StatesHQ checked Sep 19, 2026	501-1,000	1,069 contacts →
	Indirect evidence “At the Sierra Club, we believe in the power of togetherness.” Source: RevenueBase Database · checked Sep 19, 2026
4	2tonnes	Partial evidence	Paris, FranceHQ checked Sep 19, 2026	n/a	799 contacts →
	Partial evidence “2tonnes is an immersive workshop to explore the future and act together for the climate.” Source: RevenueBase Database · checked Sep 19, 2026
5	Climatebase	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	n/a	759 contacts →
	Partial evidence “Climatebase is the community for climate & sustainability professionals, and the world's #1 platform for green jobs.” Source: RevenueBase Database · checked Sep 19, 2026
6	Centre For Alternative Technology	Indirect evidence	Machynlleth, United KingdomHQ checked Sep 19, 2026	n/a	618 contacts →
	Indirect evidence “Mae Canolfan y Dechnoleg Amgen yn elusen addysg amgylcheddol sydd wedi bod yn rhannu atebion i faterion amgylcheddol ac ymchwilio iddyn nhw ers dros 50 mlynedd – gan weithio tuag…” Source: RevenueBase Database · checked Sep 19, 2026
7	Mass Audubon	Indirect evidence	Lincoln, MA, United StatesHQ checked Sep 19, 2026	201-500	554 contacts →
	Indirect evidence “Mass Audubon is the largest nature-based conservation organization in New England.” Source: RevenueBase Database · checked Sep 19, 2026
8	Unity Environmental University	Indirect evidence	New Gloucester, ME, United StatesHQ checked Sep 19, 2026	51-200	527 contacts →
	Indirect evidence “For more than fifty years, Unity Environmental University has been preparing the next generation of environmental professionals and leaders to successfully face real-world…” Source: RevenueBase Database · checked Sep 19, 2026
9	Climate Fresk	Strong evidence	Paris, FranceHQ checked Sep 19, 2026	n/a	467 contacts →
	Strong evidence “The Climate Fresk is a serious game about climate change, based on collective intelligence and creativity.” Source: RevenueBase Database · checked Sep 19, 2026
10	SEI Stockholm Environment Institute	Partial evidence	Stockholm, SwedenHQ checked Sep 19, 2026	201-500	462 contacts →
	Partial evidence “Stockholm Environment Institute – bridging science, policy and practice We are an international non-profit research institute that tackles climate, environment and sustainable…” Source: RevenueBase Database · checked Sep 19, 2026
11	Fresque DE LA Biodiversité	Indirect evidence	Lyon, FranceHQ checked Sep 19, 2026	n/a	412 contacts →
	Indirect evidence “D’ici à 2020 au plus tard, les individus sont conscients de la valeur de la diversité biologique et des mesures qu’ils peuvent prendre pour la conserver et l’utiliser de manière…” Source: RevenueBase Database · checked Sep 19, 2026
12	RARE	Partial evidence	Arlington, VA, United StatesHQ checked Sep 19, 2026	51-200	368 contacts →
	Partial evidence “Rare is a global leader in driving social change for people and nature.” Source: RevenueBase Database · checked Sep 19, 2026
13	Ikea Foundation	Indirect evidence	Leiden, NetherlandsHQ checked Sep 19, 2026	51-200	358 contacts →
	Indirect evidence “The IKEA Foundation fights global warming with and for the many people.” Source: RevenueBase Database · checked Sep 19, 2026
14	Centre For Environment Education	Partial evidence	Ahmedabad, IndiaHQ checked Sep 19, 2026	201-500	333 contacts →
	Partial evidence “Centre for Environment Education, CEE was created in recognition of the importance of environmental education in India's overall environment and development strategy.” Source: RevenueBase Database · checked Sep 19, 2026
15	Climate KIC	Partial evidence	Amsterdam, NetherlandsHQ checked Sep 19, 2026	51-200	319 contacts →
	Partial evidence “Climate KIC is Europe's foremost climate innovation agency: an international non-profit Foundation that for over 16 years has been embedded in the places where climate ambition…” Source: RevenueBase Database · checked Sep 19, 2026
16	Earth5r	Indirect evidence	Mumbai, IndiaHQ checked Sep 19, 2026	n/a	299 contacts →
	Indirect evidence “Earth5R is a UNESCO-recognized global environmental organization driving the shift towards a green economy.” Source: RevenueBase Database · checked Sep 19, 2026
17	Adelphi	Partial evidence	Berlin, GermanyHQ checked Sep 19, 2026	201-500	269 contacts →
	Partial evidence “adelphi consult is a leading independent consultancy specialising in climate, environment and development.” Source: RevenueBase Database · checked Sep 19, 2026
18	Ashoka Trust For Research In Ecology And The Environment	Indirect evidence	Bengaluru, IndiaHQ checked Sep 19, 2026	51-200	253 contacts →
	Indirect evidence “ATREE's mission is to promote socially just environmental conservation and sustainable development by generating rigorous interdisciplinary knowledge that engages actively with…” Source: RevenueBase Database · checked Sep 19, 2026
19	Wuppertal Institute For Climate, Environment And Energy	Indirect evidence	Wuppertal, GermanyHQ checked Sep 19, 2026	201-500	249 contacts →
	Indirect evidence “The Wuppertal Institute is an implementation-oriented research institute with roots in North Rhine-Westphalia and a global outlook.” Source: RevenueBase Database · checked Sep 19, 2026
20	Naturskyddsföreningen Ssnc	Partial evidence	Stockholm, SwedenHQ checked Sep 19, 2026	51-200	246 contacts →
	Partial evidence “The Swedish Society for Nature Conservation (SSNC) is an environmental organization with power to bring about change.” Source: RevenueBase Database · checked Sep 19, 2026
21	Holy Cross Of Davao College, INC	Indirect evidence	Davao, PhilippinesHQ checked Sep 19, 2026	201-500	242 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
22	Columbia Climate School	Strong evidence	New York, NY, United StatesHQ checked Sep 19, 2026	501-1,000	235 contacts →
	Strong evidence “Developing innovative education, supporting groundbreaking research, and fostering essential solutions for climate and sustainability.” Source: RevenueBase Database · checked Sep 19, 2026
23	The Conservation Fund	Partial evidence	Arlington, VA, United StatesHQ checked Sep 19, 2026	201-500	224 contacts →
	Partial evidence “We are in the business of conservation, creating innovative solutions that drive nature-based action for climate protection, sustainable economies and vibrant communities.” Source: RevenueBase Database · checked Sep 19, 2026
24	Sunrise Movement	Partial evidence	Washington, DC, United StatesHQ checked Sep 19, 2026	n/a	222 contacts →
	Partial evidence “Sunrise is a movement of young people uniting to stop the climate crisis.” Source: RevenueBase Database · checked Sep 19, 2026
25	Global Factor	Strong evidence	Bilbao, SpainHQ checked Sep 19, 2026	201-500	218 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: climate change education organizations. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names climate change education organizations.
Partial evidence: Its own public description names part of climate change education organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name climate change education organizations. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 7,027 climate change education organizations worldwide

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Climate change education organizations worldwide at a glance

As of Sep 19, 2026

21.0%Verified-email coverage

9.6Average contacts per company

1-10Median size (employees)

2.1%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

4,491

11-50

1,808

51-200

480

201-500

111

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

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among climate change education organizations, 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 climate change education organizations are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “climate change education organizations”. 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 climate change education organizations), 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 climate change education organizations, 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, 14,151 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.

Climate change education organizations by location

28 lists · largest first

Every Climate change education 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 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 climate change education organizations, 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 climate change education organizations are there worldwide?

RevenueBase identified 7,027 climate change education organizations 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?

LA Fresque DU Climat, headquartered in Paris, tops this list with the largest team on record.

Which country has the most climate change education organizations?

The United States leads with 1,247 companies, followed by France (381) and India (368). Every climate change education organizations list by country and city is linked on this page.

Which city has the most climate change education organizations?

London leads with 145 headquartered companies, followed by Paris (100) and New York (94).

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 14,151 verified decision-maker contacts tracked across these 7,027 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.