Company lists · Data refreshed September 2026

Top 25 Carbon compliance consulting firms based in the United Kingdom

RevenueBase identified 450 company matches for carbon compliance consulting firms associated with the United Kingdom as of September 2026 and tracks 4,819 professional contacts across them, including 2,473 with verified work emails. London is the largest hub.

This list covers company matches for carbon compliance consulting firms 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 27, 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 27, 2026 How this list was built
450Companies
4,819Contacts tracked
2,473Verified emails
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The 25 largest carbon compliance consulting firms based in the United Kingdom

Ranked by team size
Top 25 of 450 company matches for carbon compliance consulting firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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 matchLondon, United KingdomHQ recorded Sep 27, 20261,001-5,000894 contacts →

Exact match

“Anthesis guides clients to sustainable performance.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-200192 contacts →

Exact match

“Investing in carbon projects is essential to tackling climate change.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-200115 contacts →

Exact match

“At ZTP, we’re committed to accelerating the transition to a more sustainable future by reducing the negative impact of human activity on our planet - ecologically, financially…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-200115 contacts →

Exact match

“Longevity Partners is a multidisciplinary energy and sustainability consultancy.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchTiverton, United KingdomHQ recorded Sep 27, 202651-20092 contacts →

Exact match

“AES Sustainability Consultants is a leading technical consultancy that delivers value engineered solutions across the homebuilding and construction industries.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchAberdeen, United KingdomHQ recorded Sep 27, 202651-20090 contacts →

Exact match

“Katoni provides consulting, engineering, optimisation and emissions reduction support for the Energy Sector.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 27, 2026201-50088 contacts →

Exact match

“Alfa Energy Group (an Edison Energy company) is an international energy, sustainability and technology consultant partner with 200 employees over four international locations.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchGateshead, United KingdomHQ recorded Sep 27, 202651-20081 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 27, 2026 · View company records in RevenueBase
9Exact matchMilton Keynes, United KingdomHQ recorded Sep 27, 202651-20069 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 27, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 27, 2026201-50069 contacts →

Exact match

“EcoAct is now SE Advisory Services.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchCrewe, United KingdomHQ recorded Sep 27, 202651-20067 contacts →

Exact match

“Our mission at The Miles Consultancy (TMC) is to empower businesses with innovative, digital solutions and data-driven insights that reduce costs, lower carbon emissions and…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchBlackpool, United KingdomHQ recorded Sep 27, 202651-20065 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchWynyard, United KingdomHQ recorded Sep 27, 202611-5063 contacts →

Exact match

“JBA are industry-leading consultants, providing flexible engineering and design solutions, procurement, and construction services.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchEpsom, United KingdomHQ recorded Sep 27, 202651-20061 contacts →

Exact match

“We help organisations understand, measure, and meaningfully reduce their environmental impact through a unique combination of expert consultancy, advanced carbon accounting…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchSandhurst, United KingdomHQ recorded Sep 27, 202611-5049 contacts →

Exact match

“Carbonxgen is a leading consultancy that specialises in solving complex energy and sustainability challenges.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchOtley, United KingdomHQ recorded Sep 27, 202611-5047 contacts →

Exact match

“Our world faces unprecedented environmental challenges - from climate change, to biodiversity loss, pollution, and unsustainable resource use.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5045 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchOxford, United KingdomHQ recorded Sep 27, 202611-5045 contacts →

Exact match

“Aether provides consultancy in air quality and climate change emissions inventories, forecasting and policy analysis.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5045 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchWhite Moss Business Park, United KingdomHQ recorded Sep 27, 202611-5042 contacts →

Exact match

“Cotopaxi Energy is an independent engineering consultancy specialising in utility and carbon reduction.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5042 contacts →

Exact match

“CarbonChain's platform enables companies to track, report and reduce their supply chain emissions, covering the most carbon-intensive industries (metals and mining, agriculture…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchManchester, United KingdomHQ recorded Sep 27, 202611-5041 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchSt Neots, United KingdomHQ recorded Sep 27, 202611-5039 contacts →

Exact match

“We are Energise – your sustainability partner.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 27, 2026n/a37 contacts →

Exact match

“Mitie’s knowledge of customer estates, combined with our ability to execute a zero carbon strategy from assessment through to delivery is, we believe, unrivalled.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchOxford, United KingdomHQ recorded Sep 27, 202611-5034 contacts →

Exact match

“Based in Oxford, UK and in Istanbul, Turkey, Metsims is the leading sustainability consultancy specialised in life cycle assessment (LCA), corporate and product carbon footprint…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 450 carbon compliance consulting firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 2,473 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Carbon compliance consulting firms based in the United Kingdom at a glance

As of Sep 27, 2026
51.3%Verified-email coverage
10.7Average contacts per company
1-10Median size (employees)
32.2%Largest-city concentration · London
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
312
11-50
105
51-200
24
201-500
4
501-1,000
1
1,001-5,000
1
10001+
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 450 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 “carbon compliance consulting firms” 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 2,473 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 27, 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 “carbon compliance consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many carbon compliance consulting firms are there based in the United Kingdom?

RevenueBase identified 450 company matches for carbon compliance consulting firms 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?

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

Which city has the most carbon compliance consulting firms?

London leads with 145 company records, followed by Manchester (19) and Leeds (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 2,473 professional contacts with verified work emails tracked across these 450 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 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 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.