Company lists · Data refreshed November 2026

Top 25 Climate adaptation nonprofits worldwide

RevenueBase identified 3,154 company matches for climate adaptation nonprofits worldwide as of November 2026 and tracks 42,114 professional contacts across them, including 9,456 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for climate adaptation nonprofits 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 adaptation nonprofits 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
3,154Companies
42,114Contacts tracked
9,456Verified emails
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The 25 largest climate adaptation nonprofits worldwide

Ranked by team size
Top 25 of 3,154 company matches for climate adaptation nonprofits 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 matchLyon, FranceHQ recorded Nov 6, 2026n/a11,435 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
2Exact 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
3Exact matchAlbuquerque, NM, United StatesHQ recorded Nov 6, 2026n/a1,430 contacts →

Exact match

“Casa Familiar is a primary/secondary education company based out of 501 Atrisco Dr Sw, Albuquerque, New Mexico, United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchSkipton, United KingdomHQ recorded Nov 6, 2026501-1,000774 contacts →

Exact match

“Leading in society's pursuit for resilience to climate change.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchArlington, VA, United StatesHQ recorded Nov 6, 202651-200396 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
6Exact matchLeiden, NetherlandsHQ recorded Nov 6, 202651-200396 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
7Exact matchThe Hague, NetherlandsHQ recorded Nov 6, 2026201-500325 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchAmsterdam, NetherlandsHQ recorded Nov 6, 202651-200315 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchParis, ON, FranceHQ recorded Nov 6, 2026201-500265 contacts →

Exact match

“Since 2008, PUR has helped companies turn climate and nature commitments into measurable impact on the ground.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBoston, MA, United StatesHQ recorded Nov 6, 202651-200241 contacts →

Exact match

“Ceres is a nonprofit advocacy organization working to accelerate the transition to a cleaner, more just, and resilient world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchArlington, VA, United StatesHQ recorded Nov 6, 2026201-500238 contacts →

Exact match

“We are in the business of conservation, creating innovative solutions that drive nature-based action for climate protection, sustainable economies and vibrant communities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchAshburn, VA, United StatesHQ recorded Nov 6, 2026201-500238 contacts →

Exact match

“Building resilient communities by reducing risk, enhancing public safety and improving quality of life.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact 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
14Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 2026201-500224 contacts →

Exact match

“ClimateWorks Foundation is a catalyst for accelerating climate progress, driving bold solutions that benefit people and the planet.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchAmsterdam, NetherlandsHQ recorded Nov 6, 202651-200192 contacts →

Exact match

“Onze missie?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact 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
17Exact 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
18Exact matchSeoul, South KoreaHQ recorded Nov 6, 202651-200160 contacts →

Exact match

“Solutions for Our Climate (SFOC) is an international climate advocacy organization founded in 2016 dedicated to accelerating effective climate action and energy transition across…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchDartmouth, NS, CanadaHQ recorded Nov 6, 202651-200159 contacts →

Exact match

“Clean Foundation helps the communities in which we work make real progress toward a cleaner future by taking on climate change challenges.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 2026n/a157 contacts →

Exact match

“ALL ONE SKY FOUNDATION is a not-for-profit, charitable organization established to help vulnerable populations at the crossroads of energy and climate change.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBeverly Hills, CA, United StatesHQ recorded Nov 6, 202651-200154 contacts →

Exact match

“As the Los Angeles region faces severe impacts from climate change, TreePeople unites the power of trees, people and nature-based solutions to grow a more climate-ready city.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSanta Cruz, CA, United StatesHQ recorded Nov 6, 202651-200152 contacts →

Exact match

“Ecology Action is an award-winning California 501(c)(3) non-profit that’s been inspiring sustainable community actions since 1970.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchMadison, WI, United StatesHQ recorded Nov 6, 202651-200151 contacts →

Exact match

“We're a nonprofit headquartered in Madison, WI with an office in Chicago and remote staff across the U.S.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSan Rafael, CA, United StatesHQ recorded Nov 6, 202651-200145 contacts →

Exact match

“SEI is an environmental nonprofit that builds leaders to accelerate climate solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchAmsterdam, NetherlandsHQ recorded Nov 6, 202651-200133 contacts →

Exact match

“De wereld staat in brand, de zeespiegel stijgt, en biodiversiteit wordt bedreigd.”

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

Showing 25 of 3,154 climate adaptation nonprofits worldwide

See the full list, filter by size, metro and specialty, and access 9,456 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Climate adaptation nonprofits worldwide at a glance

As of Nov 6, 2026
22.5%Verified-email coverage
13.4Average contacts per company
1-10Median size (employees)
2.3%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
2,080
11-50
830
51-200
180
201-500
27
501-1,000
12
1,001-5,000
12
5,001-10,000
2
10001+
10

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 adaptation nonprofits are linked below.
What qualifies
Company records worldwide whose business descriptions match “climate adaptation nonprofits” 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 9,456 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 adaptation nonprofits by location

18 lists · largest first

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

How many climate adaptation nonprofits are there worldwide?

RevenueBase identified 3,154 company matches for climate adaptation nonprofits 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 adaptation nonprofits?

The United States leads with 594 companies, followed by the United Kingdom (189) and India (183). Every climate adaptation nonprofits list by country and city is linked on this page.

Which city has the most climate adaptation nonprofits?

London leads with 74 company records, followed by New York (53) and Nairobi (40).

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 9,456 professional contacts with verified work emails tracked across these 3,154 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.