Company lists · Data refreshed September 2026

Top 25 Climate adaptation organizations worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 5,040 companies tracked

RevenueBase identified 5,040 climate adaptation organizations worldwide as of September 2026 and tracks 53,605 professional contacts across them, including 17,335 with verified work emails. The United States is the largest market and London the largest hub.

This list covers climate adaptation 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 adaptation 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

5,040Companies

53,605Contacts tracked

17,335Verified emails

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The 25 largest climate adaptation organizations worldwide

Ranked by team size

Top 25 of 5,040 climate adaptation 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 adaptation 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	Cerema	Partial evidence	Lyon, FranceHQ checked Sep 19, 2026	1,001-5,000	1,951 contacts →
	Partial evidence “Le Cerema, référent public en aménagement, accompagne l’État, les collectivités et les entreprises pour adapter les territoires au changement climatique.” Source: RevenueBase Database · checked Sep 19, 2026
2	ADEME	Partial evidence	Montrouge, FranceHQ checked Sep 19, 2026	501-1,000	1,686 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 19, 2026
3	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
4	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
5	JBA Consulting	Partial evidence	Skipton, United KingdomHQ checked Sep 19, 2026	501-1,000	720 contacts →
	Partial evidence “Leading in society's pursuit for resilience to climate change.” Source: RevenueBase Database · checked Sep 19, 2026
6	E CO	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	n/a	621 contacts →
	Partial evidence “For over 26 years, our consultants have been supporting and guiding our clients to achieve low-carbon climate-resilient development.” Source: RevenueBase Database · checked Sep 19, 2026
7	C40 Cities	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	517 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
8	Cmcc Foundation	Partial evidence	Lecce, ItalyHQ checked Sep 19, 2026	51-200	472 contacts →
	Partial evidence “The Foundation Euro-Mediterranean Centre on Climate Change (CMCC) is a research centre on climate science and policy.” Source: RevenueBase Database · checked Sep 19, 2026
9	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
10	Energy Saving Trust	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	426 contacts →
	Indirect evidence “Energy Saving Trust is an independent organisation dedicated to promoting energy efficiency, low carbon transport and sustainable energy use.” Source: RevenueBase Database · checked Sep 19, 2026
11	International Institute For Sustainable Development	Indirect evidence	Winnipeg, MB, CanadaHQ checked Sep 19, 2026	51-200	375 contacts →
	Indirect evidence “The International Institute for Sustainable Development (IISD) is an award-winning think tank working to solve today’s greatest sustainable development challenges.” Source: RevenueBase Database · checked Sep 19, 2026
12	EMM Consulting PTY Limited	Indirect evidence	St Leonards, AustraliaHQ checked Sep 19, 2026	201-500	361 contacts →
	Indirect evidence “At EMM, we believe that a sustainable future is achievable, and we are dedicated to helping our clients and the community make it a reality.” 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	European Climate Foundation	Partial evidence	The Hague, NetherlandsHQ checked Sep 19, 2026	201-500	323 contacts →
	Partial evidence “The European Climate Foundation (ECF) is a leading philanthropic initiative dedicated to fostering the net-zero transition and ensuring a healthy, thriving planet for current and…” 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	Climate Policy Initiative	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	51-200	288 contacts →
	Indirect evidence “CPI is an analysis and advisory organization with deep expertise in finance and policy.” 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	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
19	Ceres, INC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 19, 2026	51-200	241 contacts →
	Indirect evidence “Ceres is a nonprofit advocacy organization working to accelerate the transition to a cleaner, more just, and resilient world.” Source: RevenueBase Database · checked Sep 19, 2026
20	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
21	Waycarbon	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 19, 2026	201-500	221 contacts →
	Indirect evidence “WayCarbon is a global company specialized in solutions focused on the transition to a net-zero economy.” Source: RevenueBase Database · checked Sep 19, 2026
22	Global Factor	Partial evidence	Bilbao, SpainHQ checked Sep 19, 2026	201-500	218 contacts →
	Partial 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
23	Milieudefensie	Indirect evidence	Amsterdam, NetherlandsHQ checked Sep 19, 2026	51-200	210 contacts →
	Indirect evidence “Onze missie?” Source: RevenueBase Database · checked Sep 19, 2026
24	Wrms Global	Partial evidence	Gurugram, IndiaHQ checked Sep 19, 2026	201-500	206 contacts →
	Partial evidence “Welcome to WRMS (Weather Risk Management Services Pvt Ltd) WRMS is a global leader in agricultural and climate risk management.” Source: RevenueBase Database · checked Sep 19, 2026
25	Climateworks Foundation	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	201-500	205 contacts →
	Partial evidence “ClimateWorks Foundation is a catalyst for accelerating climate progress, driving bold solutions that benefit people and the planet.” 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 adaptation 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 adaptation organizations.
Partial evidence: Its own public description names part of climate adaptation organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name climate adaptation 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 5,040 climate adaptation organizations worldwide

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Climate adaptation organizations worldwide at a glance

As of Sep 19, 2026

32.3%Verified-email coverage

10.6Average contacts per company

1-10Median size (employees)

3.1%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

3,352

11-50

1,268

51-200

282

201-500

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 adaptation 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 adaptation organizations are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “climate adaptation 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 adaptation 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 adaptation 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, 17,335 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 adaptation organizations by location

27 lists · largest first

Every Climate adaptation 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 adaptation 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 adaptation organizations are there worldwide?

RevenueBase identified 5,040 climate adaptation 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?

Cerema, headquartered in Lyon, tops this list with the largest team on record.

Which country has the most climate adaptation organizations?

The United States leads with 779 companies, followed by the United Kingdom (332) and France (316). Every climate adaptation organizations list by country and city is linked on this page.

Which city has the most climate adaptation organizations?

London leads with 156 headquartered companies, followed by Paris (84) and New York (62).

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 17,335 verified decision-maker contacts tracked across these 5,040 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.