Company lists · Data refreshed November 2026

Top 25 Climate action groups based in the United Kingdom

RevenueBase identified 156 company matches for climate action groups associated with the United Kingdom as of November 2026 and tracks 1,725 professional contacts across them, including 363 with verified work emails. London is the largest hub.

This list covers company matches for climate action groups associated with the United Kingdom, 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.

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
156Companies
1,725Contacts tracked
363Verified emails
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The 25 largest climate action groups based in the United Kingdom

Ranked by team size
Top 25 of 156 company matches for climate action groups based in the United Kingdom, 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 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
2Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5080 contacts →

Exact match

“Ashden's mission is to accelerate transformative climate solutions and build a more just world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBrighton, United KingdomHQ recorded Nov 6, 202611-5037 contacts →

Exact match

“Legislators working worldwide to combat climate change.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchSheffield, United KingdomHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“Hope for the Future is a UK-based charity which works to equip communities, groups, and individuals across the country to communicate the urgency of the climate and nature crises…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5030 contacts →

Exact match

“Responding to Climate Change Limited (RTCC) was founded in 2002 by James Ramsey.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-1026 contacts →

Exact match

“How do we mobilise young people to step up, rather than shut down, in the face of our planet's messiest problems?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchBristol, United KingdomHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“We’re Bristol Climate & Nature Partnership, a unique network united by one vision: a zero-carbon, nature-rich, socially just future for our city.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchBath, United KingdomHQ recorded Nov 6, 20261-1021 contacts →

Exact match

“Founded by Christiana Figueres and Tom Rivett-Carnac, Global Optimism embraces the complexity of the climate crisis and the solutions we urgently need.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchNorwich, United KingdomHQ recorded Nov 6, 20261-1016 contacts →

Exact match

“Time’s up for ‘last warnings’ to prevent climate breakdown: we’re heading past 1.5 ºC.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-1015 contacts →

Exact match

“The Climate Coalition is the UK's largest group of people dedicated to action on climate change and limiting its impact on the people, places and life we love at home in the UK…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchManchester, United KingdomHQ recorded Nov 6, 20261-1014 contacts →

Exact match

“Shared action for our zero carbon city.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchWinchester, United KingdomHQ recorded Nov 6, 20261-1013 contacts →

Exact match

“Winchester Action on the Climate Crisis (WinACC) inspires people, politicians and organisations to get to net zero emissions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-1013 contacts →

Exact match

“In July 2019, Music Declares Emergency launched our declaration of a Climate and Ecological Emergency, from the UK music industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-1013 contacts →

Exact match

“It’s Time for Real Zero.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchMacclesfield, United KingdomHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“When the COP26 conference would have been running in 2020, over 330 youth delegates representing over 140 countries gathered online at Mock COP.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchEdinburgh, United KingdomHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Protect Our Winters UK helps passionate outdoor people become effective climate advocates to achieve systemic solutions to climate change, protecting our world today and for…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchNational, United KingdomHQ recorded Nov 6, 20261-1012 contacts →

Exact match

“We’re a growing group of parents navigating the climate crisis.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-1011 contacts →

Exact match

“The arts have played a part in causing this crisis and, through the power of cultural change, have an essential role to play in fixing it.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“Subak is a climate action incubator driving systems change by mobilising and funding networks of not-for-profits to tackle urgent climate challenges.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchLewes, United KingdomHQ recorded Nov 6, 20261-109 contacts →

Exact match

“Ovesco (Ouse Valley Energy Services Company) is a community organisation based in Lewes, East Sussex.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-509 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Let’s Go Zero is the national campaign uniting teachers, pupils, parents and their schools as they work together to be zero carbon by 2030.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchCambridge, United KingdomHQ recorded Nov 6, 20261-108 contacts →

Exact match

“CCF is an award-winning environmental charity (no.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-108 contacts →

Exact match

“GCC’s primary goal is to facilitate a reduction of the sector’s CO2e emissions by a minimum of 50% by 2030, as well as promoting zero waste.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchEdinburgh, United KingdomHQ recorded Nov 6, 20261-108 contacts →

Exact match

“Stop Climate Chaos Scotland (SCCS) is a diverse coalition of over 70 organisations campaigning together on climate change.”

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

Showing 25 of 156 climate action groups based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 363 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Climate action groups based in the United Kingdom at a glance

As of Nov 6, 2026
21.0%Verified-email coverage
11.1Average contacts per company
1-10Median size (employees)
42.3%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
113
11-50
33
51-200
2
201-500
5
1,001-5,000
3

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 156 companies.

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.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “climate action groups” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 363 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 groups by metro

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 groups”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many climate action groups are there based in the United Kingdom?

RevenueBase identified 156 company matches for climate action groups associated with the United Kingdom 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?

E3g tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most climate action groups?

London leads with 66 company records, followed by Edinburgh (6) and Oxford (6).

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 363 professional contacts with verified work emails tracked across these 156 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.

Ready to reach these companies? Verified emails and direct dials for all 156 climate action groups based in the United Kingdom. Start with a free account, no credit card.

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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.