Company lists · Data refreshed September 2026

Top 25 Carbon credit consultants based in the United Kingdom

RevenueBase identified 134 carbon credit consultants headquartered in the United Kingdom as of September 2026 and tracks 1,166 professional contacts across them, including 549 with verified work emails. London is the largest hub.

This list covers carbon credit consultants 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 27, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 27, 2026 86% judged on-target in blind review
134Companies
1,166Contacts tracked
549Verified emails
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The 25 largest carbon credit consultants based in the United Kingdom

Ranked by team size
Top 25 of 134 carbon credit consultants based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to carbon credit consultants: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLondon, United KingdomHQ checked Sep 27, 202651-200135 contacts →

Indirect evidence

“Climate Impact Partners is the trusted partner for organizations taking ambitious climate action.”

Source: RevenueBase Database · checked Sep 27, 2026
2Indirect evidenceLondon, United KingdomHQ checked Sep 27, 2026201-50069 contacts →

Indirect evidence

“EcoAct is now SE Advisory Services.”

Source: RevenueBase Database · checked Sep 27, 2026
3Partial evidenceBlackpool, United KingdomHQ checked Sep 27, 202651-20065 contacts →

Partial evidence

“From world famous brands to multi-national industrials, we strive to make carbon net zero ambitions a reality; by benchmarking where you are today to developing a robust net zero…”

Source: RevenueBase Database · checked Sep 27, 2026
4Partial evidenceLondon, United KingdomHQ checked Sep 27, 202611-5045 contacts →

Partial evidence

“Circle are Carbon, Project, Cost and Quality experts.”

Source: RevenueBase Database · checked Sep 27, 2026
5Strong evidenceLondon, United KingdomHQ checked Sep 27, 202611-5045 contacts →

Strong evidence

“Abatable is a leading provider of carbon credit procurement, intelligence, and advisory solutions.”

Source: RevenueBase Database · checked Sep 27, 2026
6Partial evidenceManchester, United KingdomHQ checked Sep 27, 202611-5041 contacts →

Partial evidence

“At Envantage, you will find the brightest and best experts in low carbon and business energy.”

Source: RevenueBase Database · checked Sep 27, 2026
7Partial evidenceJersey, United KingdomHQ checked Sep 27, 202611-5032 contacts →

Partial evidence

“TASC is a carbon finance and project development company with active projects in Australia, South Africa, and Zambia.”

Source: RevenueBase Database · checked Sep 27, 2026
8Strong evidenceBasingstoke, United KingdomHQ checked Sep 27, 202611-5029 contacts →

Strong evidence

“We help organisations meet their business objectives by enabling them to reduce carbon emissions, energy, and costs whilst developing robust environmental credentials.”

Source: RevenueBase Database · checked Sep 27, 2026
9Partial evidenceLondon, United KingdomHQ checked Sep 27, 202611-5029 contacts →

Partial evidence

“HAMERKOP IS AN ENABLER - AN INDEPENDENT TECHNICAL CONSULTANCY OPERATING WORLDWIDE.”

Source: RevenueBase Database · checked Sep 27, 2026
10Indirect evidenceManchester, United KingdomHQ checked Sep 27, 202611-5027 contacts →

Indirect evidence

“Green Economy supports businesses as the UK transitions to net zero.”

Source: RevenueBase Database · checked Sep 27, 2026
11Strong evidenceLondon, United KingdomHQ checked Sep 27, 202611-5026 contacts →

Strong evidence

“Carbon Trade Exchange is the World’s first and largest electronic Exchange for buyers and sellers of Voluntary Carbon Credits.”

Source: RevenueBase Database · checked Sep 27, 2026
12Partial evidenceHampton Hill, United KingdomHQ checked Sep 27, 202611-5020 contacts →

Partial evidence

“Carbon Architecture has spent the last twelve years helping energy intensive organisations optimise their processes.”

Source: RevenueBase Database · checked Sep 27, 2026
13Strong evidenceLondon, United KingdomHQ checked Sep 27, 202611-5019 contacts →

Strong evidence

“Carbonplace is a global carbon credit management platform providing carbon portfolio management for companies, carbon inventory management for producers, and access to global…”

Source: RevenueBase Database · checked Sep 27, 2026
14Partial evidenceLondon, United KingdomHQ checked Sep 27, 202651-20015 contacts →

Partial evidence

“edenseven is a management consultancy firm that helps companies of all sizes achieve their sustainability goals and work towards net zero emissions.”

Source: RevenueBase Database · checked Sep 27, 2026
15Strong evidenceLondon, United KingdomHQ checked Sep 27, 202611-5015 contacts →

Strong evidence

“We are the sustainability consultancy specialising in the calculation, reduction and offsetting of carbon footprints, to support our clients on their journey to net-zero.”

Source: RevenueBase Database · checked Sep 27, 2026
16Indirect evidenceSiskin Parkway East, United KingdomHQ checked Sep 27, 202611-5013 contacts →

Indirect evidence

“Optimise energy, reach net zero and ensure compliance.”

Source: RevenueBase Database · checked Sep 27, 2026
17Partial evidenceBelfast, United KingdomHQ checked Sep 27, 202611-5012 contacts →

Partial evidence

“carbonfit provides your business with a one-stop solution to reduce carbon emissions by centralising energy and carbon data, highlighting hotspots and streamlining mandatory…”

Source: RevenueBase Database · checked Sep 27, 2026
18Indirect evidenceManchester, United KingdomHQ checked Sep 27, 202611-5011 contacts →

Indirect evidence

“One Tribe gives venues and event organisers a verified, live record of their environmental impact, updated automatically with every event, shareable with every client who asks.”

Source: RevenueBase Database · checked Sep 27, 2026
19Partial evidenceManchester, United KingdomHQ checked Sep 27, 20261-1010 contacts →

Partial evidence

“Everything businesses need to measure, manage and reduce carbon emissions, including market-leading carbon accounting software, and advice, tips and support on how to reduce the…”

Source: RevenueBase Database · checked Sep 27, 2026
20Indirect evidenceLondon, United KingdomHQ checked Sep 27, 20261-1010 contacts →

Indirect evidence

“Zerogram is on a mission to make net zero not just possible, but practical.”

Source: RevenueBase Database · checked Sep 27, 2026
21Strong evidenceStocksbridge, United KingdomHQ checked Sep 27, 20261-1010 contacts →

Strong evidence

“Tomson Consulting Limited are a group of highly experienced consultants and engineers helping to develop low-carbon projects, manage emissions and improve biodiversity.”

Source: RevenueBase Database · checked Sep 27, 2026
22Partial evidenceLondon, United KingdomHQ checked Sep 27, 20261-109 contacts →

Partial evidence

“Companies face a range of energy and carbon challenges, from controlling costs, maintaining operations, meeting regulations and adapting to climate change.”

Source: RevenueBase Database · checked Sep 27, 2026
23Strong evidenceCheltenham, United KingdomHQ checked Sep 27, 202611-508 contacts →

Strong evidence

“We are active in the sourcing, development and trading of emission reductions and carbon credits such as CERs, Verra VCUs and Gold Standard credits.”

Source: RevenueBase Database · checked Sep 27, 2026
24Indirect evidenceLondon, United KingdomHQ checked Sep 27, 202611-508 contacts →

Indirect evidence

“Technical & Financial Advisory 2.”

Source: RevenueBase Database · checked Sep 27, 2026
25Partial evidenceExeter, United KingdomHQ checked Sep 27, 202611-508 contacts →

Partial evidence

“Advisory offering: • Environmental Product Declarations (EPDs) • Life Cycle Assessment (LCA’s) • Greenhouse Gas Inventories (GHG’s) • Carbon reduction plans • Carbon Management…”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 134 carbon credit consultants based in the United Kingdom

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Carbon credit consultants based in the United Kingdom at a glance

As of Sep 27, 2026
47.1%Verified-email coverage
8.7Average contacts per company
1-10Median size (employees)
43.3%Largest-city concentration · London
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
85
11-50
37
51-200
11
201-500
1

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 134 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 carbon credit consultants, 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 “carbon credit consultants”. 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 carbon credit consultants), 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 carbon credit consultants, 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, 549 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 27, 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.

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 carbon credit consultants, 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 carbon credit consultants are there based in the United Kingdom?

RevenueBase identified 134 carbon credit consultants 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?

Climate Impact Partners, headquartered in London, tops this list with the largest team on record.

Which city has the most carbon credit consultants?

London leads with 58 headquartered companies, followed by Manchester (6) and Leeds (3).

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 549 verified decision-maker contacts tracked across these 134 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 27, 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.