Company lists · Data refreshed September 2026
Top 25 Greenhouse gas removal companies based in the United Kingdom
RevenueBase identified 108 greenhouse gas removal companies headquartered in the United Kingdom as of September 2026 and tracks 1,328 professional contacts across them, including 744 with verified work emails. London is the largest hub.
This list covers greenhouse gas removal companies headquartered in the United Kingdom, 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.
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.
The 25 largest greenhouse gas removal companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 188 contacts → | ||||
Indirect evidence “Carbon Clean is the point-source carbon capture expert, driving the decarbonisation of hard-to-abate industries for more than 15 years.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 106 contacts → | ||||
Indirect evidence “Isometric is the agentic certification platform for the industrial economy.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 83 contacts → | ||||
Partial evidence “Storegga, a business established in 2020 as an independent champion for the development of carbon reduction and carbon removal technologies.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 60 contacts → | ||||
Partial evidence “UNDO is a world-leading carbon dioxide removal project developer specialising in enhanced rock weathering.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 56 contacts → | ||||
Indirect evidence “We are reinventing carbon for a thriving planet.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 56 contacts → | ||||
Indirect evidence “Nuada is a vertically integrated carbon capture company that is poised to decarbonise heavy industries through its next-generation point-source capture technology.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 48 contacts → | ||||
Partial evidence “Revalue creates radically better nature-based carbon credits that avoid, remove, and durably store CO₂.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 46 contacts → | ||||
Indirect evidence “O.C.O are a global clean tech company transforming thermal residues which would otherwise go to landfill through an innovative carbon capture process which permanently stores…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 42 contacts → | ||||
Partial evidence “Bio-Logical develops nature-based carbon removal projects that support the world's most climate-vulnerable communities to improve their climate resilience and livelihoods.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 33 contacts → | ||||
Partial evidence “Even if we do everything else right on reducing emissions, the world still needs to remove up to 220 Gigatonnes of carbon from the atmosphere by 2050.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 32 contacts → | ||||
Partial evidence “Supercritical is a carbon removal marketplace.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 25 contacts → | ||||
Indirect evidence “Seabound builds carbon capture equipment for large cargo ships.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 22 contacts → | ||||
Indirect evidence “Carbon Capture and Storage (CCS) is a promising method for capturing CO2 emissions from power stations and other large scale CO2 emission sources.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 22 contacts → | ||||
Indirect evidence “Carbonaires is a London based, values-driven carbon finance specialist.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 20 contacts → | ||||
Indirect evidence “UK businesses of all sizes have embraced ambitious strategies to reduce their carbon emissions, with many committed to tackling the climate and nature emergency by achieving a net…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 18 contacts → | ||||
Partial evidence “Airhive is a DAC company based in London, UK, building a hybrid geochemical-DAC technology that leverages fluidisation to deliver fast, low cost CO2 removal.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 17 contacts → | ||||
Indirect evidence “CCm Technologies is an award winning carbon solutions company, supporting corporate sustainability commitments across food & beverage supply chains, FMCG manufacturers…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 16 contacts → | ||||
Indirect evidence “We deliver advanced research into the development and deployment of Carbon Capture and Storage that is trusted by government and industry worldwide.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 15 contacts → | ||||
Indirect evidence “We capture carbon and renewable energy from waste using a low-cost sustainable alternative.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 15 contacts → | ||||
Indirect evidence “Concrete4Change (C4C) is a R&D company that is developing ground-breaking technology to utilise and permanently mineralise CO2 in concrete.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 13 contacts → | ||||
Indirect evidence “At Parallel Carbon, we're on a mission to halt climate change through innovative solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 13 contacts → | ||||
Strong evidence “Cool Planet Technologies is a carbon capture company aiming to significantly reduce the cost of removing carbon dioxide from industrial flue gas emissions using a membrane-based…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 13 contacts → | ||||
Indirect evidence “Brilliant Planet is unlocking the power of algae as an affordable method of permanently and quantifiably sequestering carbon at the gigaton scale.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 12 contacts → | ||||
Indirect evidence “Founded in 2016, Barton Blakeley Technologies convert industrial emissions into critical inputs for the supply chains of tomorrow.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 11 contacts → | ||||
Indirect evidence “Carbon8 is redefining what’s possible in carbon capture, utilisation and storage (CCUS).” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
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: greenhouse gas removal companies. 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 greenhouse gas removal companies.
- Partial evidence
- Its own public description names part of greenhouse gas removal companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name greenhouse gas removal companies. 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 108 greenhouse gas removal companies based in the United Kingdom
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Greenhouse gas removal companies based in the United Kingdom at a glance
As of Sep 19, 2026Companies by employee count
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 108 companies.
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 greenhouse gas removal companies, 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.
- What qualifies
- Companies headquartered in the United Kingdom whose own description of what they do matches “greenhouse gas removal companies”. 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 greenhouse gas removal companies), 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 greenhouse gas removal companies, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
- 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, 744 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.
Greenhouse gas removal companies by metro
- Greenhouse gas removal companies in London53
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 greenhouse gas removal companies, 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 greenhouse gas removal companies are there based in the United Kingdom?
RevenueBase identified 108 greenhouse gas removal companies headquartered in the United Kingdom 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?
Carbon Clean, headquartered in London, tops this list with the largest team on record.
Which city has the most greenhouse gas removal companies?
London leads with 53 headquartered companies, followed by Edinburgh (5) and Cambridge (4).
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 744 verified decision-maker contacts tracked across these 108 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.
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