Company lists · Data refreshed September 2026

Top 25 Climate compliance consulting firms based in the United Kingdom

RevenueBase identified 1,118 company matches for climate compliance consulting firms associated with the United Kingdom as of September 2026 and tracks 25,020 professional contacts across them, including 12,975 with verified work emails. London is the largest hub.

This list covers company matches for climate 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
1,118Companies
25,020Contacts tracked
12,975Verified emails
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The 25 largest climate compliance consulting firms based in the United Kingdom

Ranked by team size
Top 25 of 1,118 company matches for climate 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, 20265,001-10,0009,119 contacts →

Exact match

“Sustainability is our business.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 27, 20261,001-5,0003,848 contacts →

Exact match

“SLR is a committed partner in our clients’ sustainability journeys.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact 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
4Exact matchLondon, United KingdomHQ recorded Sep 27, 2026n/a621 contacts →

Exact match

“For over 26 years, our consultants have been supporting and guiding our clients to achieve low-carbon climate-resilient development.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchKirkham, United KingdomHQ recorded Sep 27, 2026501-1,000373 contacts →

Exact match

“Inspired PLC is a leading technology-enabled provider of energy and sustainability solutions that allow UK and Irish businesses to transition to net-zero carbon and manage their…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchAlmondsbury, United KingdomHQ recorded Sep 27, 2026501-1,000352 contacts →

Exact match

“Hydrock now Stantec is an integrated engineering design, energy and sustainability consultancy.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchRedditch, United KingdomHQ recorded Sep 27, 202651-200316 contacts →

Exact match

“EIC Partnership: A Legacy of Expertise, A Commitment to Sustainability With origins dating back to 1975, EIC has cultivated nearly 50 years of distinguished service in energy and…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchBirmingham, United KingdomHQ recorded Sep 27, 2026501-1,000253 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchCardiff, United KingdomHQ recorded Sep 27, 2026501-1,000213 contacts →

Exact match

“Avantis Group, based in the UK, is a global leader in energy and transportation.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 27, 2026201-500171 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 27, 2026 · View company records in RevenueBase
11Exact matchChilworth, United KingdomHQ recorded Sep 27, 202651-200157 contacts →

Exact match

“Zenergi supports and empowers your journey to net zero.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-200148 contacts →

Exact match

“EVORA is an award-winning global sustainability consultancy and software provider supporting real asset investors, owners, and operators.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchBristol, United KingdomHQ recorded Sep 27, 202651-200143 contacts →

Exact match

“At Eunomia, we're social-environmental problem-solvers and researchers with a difference.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchLeicester, United KingdomHQ recorded Sep 27, 202651-200129 contacts →

Exact match

“Recognised as the Consultancy of the Year in 2021 by Energy Live News, Consultus delivers world-class consulting, buying and management services for Business Energy and Business…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchCardiff, United KingdomHQ recorded Sep 27, 202651-200124 contacts →

Exact match

“We are an award-winning energy consultancy and certified B Corp™.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact 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
17Exact 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
18Exact matchNorwich, United KingdomHQ recorded Sep 27, 202651-200111 contacts →

Exact match

“Cornwall Insight are trusted independent experts in the energy industry.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-20093 contacts →

Exact match

“Greengage is an independent sustainability and environmental consultancy known for providing bespoke advice and working in partnership with our clients and multi-disciplinary…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact 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
21Exact 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
22Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-20089 contacts →

Exact match

“Sustainable Advantage partners with Private Equity funds and businesses across the UK, France, and wider Europe.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact 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
24Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-20084 contacts →

Exact match

“We're a global sustainability agency, providing strategy, communications and reporting support to the world’s leading brands.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact 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

Showing 25 of 1,118 climate compliance consulting firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 12,975 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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

As of Sep 27, 2026
51.9%Verified-email coverage
22.4Average contacts per company
1-10Median size (employees)
36.9%Largest-city concentration · London
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
803
11-50
231
51-200
58
201-500
8
501-1,000
8
1,001-5,000
3
5,001-10,000
2
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 1,118 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 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 12,975 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 “climate compliance consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 1,118 company matches for climate 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?

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

Which city has the most climate compliance consulting firms?

London leads with 412 company records, followed by Manchester (37) and Bristol (27).

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 12,975 professional contacts with verified work emails tracked across these 1,118 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.

Ready to reach these companies? Verified emails and direct dials for all 1,118 climate compliance consulting firms 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.