Company lists · Data refreshed September 2026

Top 25 Climate tech companies based in the United Kingdom

Name: Climate tech companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 309 companies tracked

RevenueBase identified 309 company matches for climate tech companies associated with the United Kingdom as of September 2026 and tracks 24,679 professional contacts across them, including 9,679 with verified work emails. London is the largest hub.

This list covers company matches for climate tech companies 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 September 19, 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 Sep 19, 2026 How this list was built

309Companies

24,679Contacts tracked

9,679Verified emails

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The 25 largest climate tech companies based in the United Kingdom

Ranked by team size

Top 25 of 309 company matches for climate tech companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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	Subsea7	Exact match	London, United KingdomHQ recorded Sep 19, 2026	10001+	12,645 contacts →
	Exact match “Subsea7 makes offshore energy transition possible through the continuous evolution of lower-carbon oil and gas and by enabling the growth of renewables and emerging energy.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	KBC A Yokogawa Company	Exact match	Walton-on-thames, United KingdomHQ recorded Sep 19, 2026	201-500	658 contacts →
	Exact match “We are passionate about driving sustainable change for our planet.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	Energy Saving Trust	Exact match	London, United KingdomHQ recorded Sep 19, 2026	201-500	426 contacts →
	Exact match “Energy Saving Trust is an independent organisation dedicated to promoting energy efficiency, low carbon transport and sustainable energy use.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	Carbon Clean	Exact match	London, United KingdomHQ recorded Sep 19, 2026	51-200	188 contacts →
	Exact match “Carbon Clean is the point-source carbon capture expert, driving the decarbonisation of hard-to-abate industries for more than 15 years.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	CFP Energy	Exact match	London, United KingdomHQ recorded Sep 19, 2026	201-500	171 contacts →
	Exact match “CFP Energy is a leading provider of energy and environmental solutions for industrial and commercial clients.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	AMP Clean Energy	Exact match	Holborn, United KingdomHQ recorded Sep 19, 2026	51-200	134 contacts →
	Exact match “We are AMP We are an energy company that turns sustainability ambitions into reality.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	First Mode	Exact match	London, United KingdomHQ recorded Sep 19, 2026	201-500	93 contacts →
	Exact match “First Mode develops and manufactures decarbonization solutions for heavy industry partners dedicated to the clean energy future.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	Storegga	Exact match	London, United KingdomHQ recorded Sep 19, 2026	51-200	83 contacts →
	Exact match “Storegga, a business established in 2020 as an independent champion for the development of carbon reduction and carbon removal technologies.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	clearvue.business	Exact match	Gateshead, United KingdomHQ recorded Sep 19, 2026	51-200	81 contacts →
	Exact match “We enable businesses to succeed in the environmental components of their ESG strategies through comprehensive net zero consulting services and ground-breaking carbon and energy…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	Ashden	Exact match	London, United KingdomHQ recorded Sep 19, 2026	11-50	76 contacts →
	Exact match “Ashden's mission is to accelerate transformative climate solutions and build a more just world.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	Team Energy Auditing Agency LTD	Exact match	Milton Keynes, United KingdomHQ recorded Sep 19, 2026	51-200	69 contacts →
	Exact match “TEAM is the UK’s leading supplier of carbon and energy management solutions committed to driving the efficiency and sustainability of energy consumption and environmental…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	Pacific Green	Exact match	London, United KingdomHQ recorded Sep 19, 2026	51-200	63 contacts →
	Exact match “Pacific Green is becoming a world leader at providing sustainable cleantech solutions to help solve climate warming, green energy and resource scarcity challenges.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	Climate Connect Digital	Exact match	London, United KingdomHQ recorded Sep 19, 2026	11-50	63 contacts →
	Exact match “Climate Connect Digital (CCD) is a climate-tech company with Digital Monitoring Reporting Verification products in carbon markets.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	Progressive Energy	Exact match	Stonehouse, United KingdomHQ recorded Sep 19, 2026	11-50	42 contacts →
	Exact match “Taking carbon out of the world by developing low carbon energy projects.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Mobilityways	Exact match	Norwich, United KingdomHQ recorded Sep 19, 2026	11-50	37 contacts →
	Exact match “Mobilityways is a B-Corp Certified climate-tech organisation on a mission to make Zero Carbon Commuting a reality.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	WAE	Exact match	Wantage Oxford, United KingdomHQ recorded Sep 19, 2026	501-1,000	36 contacts →
	Exact match “Fortescue WAE is a tier 1 supplier of the technologies needed for the global race to decarbonise our planet.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	Angara Global LTD UK	Exact match	London, United KingdomHQ recorded Sep 19, 2026	11-50	33 contacts →
	Exact match “ANGARA turns $100 billion of invisible fouling losses into measurable profit through Proactive Fouling Management in industrial heat transfer with paired AI analytics and patented…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	Elire Group	Exact match	London, United KingdomHQ recorded Sep 19, 2026	11-50	32 contacts →
	Exact match “ELIRE pioneers innovative solutions that enable our clients and partners to reach their decarbonisation and net zero goals.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19	Orbital Materials	Exact match	London, United KingdomHQ recorded Sep 19, 2026	11-50	24 contacts →
	Exact match “Building novel solutions for clean air, water and energy with AI.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20	KEW Technology	Exact match	Birmingham, United KingdomHQ recorded Sep 19, 2026	51-200	23 contacts →
	Exact match “KEW Technology is a UK based sustainable energy solutions company.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21	C-Capture LTD	Exact match	Leeds, United KingdomHQ recorded Sep 19, 2026	1-10	22 contacts →
	Exact match “Carbon Capture and Storage (CCS) is a promising method for capturing CO2 emissions from power stations and other large scale CO2 emission sources.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22	Loesche Energy Systems Limited	Exact match	Horsham, United KingdomHQ recorded Sep 19, 2026	11-50	22 contacts →
	Exact match “LOESCHE ENERGY SYSTEMS LIMITED is diversifying and innovating our energy and power generation solutions.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23	Making Energy Greener	Exact match	Southport, United KingdomHQ recorded Sep 19, 2026	51-200	21 contacts →
	Exact match “With over 20 years of experience in the energy services sector, Making Energy Greener are committed to transforming our community's homes with innovative energy-saving products…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24	Energy Oasis	Exact match	Harrogate, United KingdomHQ recorded Sep 19, 2026	11-50	19 contacts →
	Exact match “Merging energy efficiency and renewable energy technologies to drive cost savings and combat climate change.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25	Boom Power	Exact match	Arundel, United KingdomHQ recorded Sep 19, 2026	11-50	18 contacts →
	Exact match “BOOM Power is committed to developing renewable energy projects that contribute to a sustainable and low-carbon future.” Recorded in the RevenueBase company graph · Sep 19, 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 tech companies”. 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 309 climate tech companies based in the United Kingdom

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Climate tech companies based in the United Kingdom at a glance

As of Sep 19, 2026

39.2%Verified-email coverage

79.9Average contacts per company

1-10Median size (employees)

41.4%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

182

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 309 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 tech companies” 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 9,679 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 September 19, 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.

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

How many climate tech companies are there based in the United Kingdom?

RevenueBase identified 309 company matches for climate tech companies associated with the United Kingdom as of September 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?

Subsea7 tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most climate tech companies?

London leads with 128 company records, followed by Edinburgh (10) and Manchester (10).

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 9,679 professional contacts with verified work emails tracked across these 309 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 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 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.