Company lists · Data refreshed September 2026

Top 25 Esg consulting firms based in the United Kingdom

RevenueBase identified 1,346 company matches for esg consulting firms associated with the United Kingdom as of September 2026 and tracks 21,182 professional contacts across them, including 10,097 with verified work emails and 2,707 with mobile numbers. London is the largest hub.

This list covers company matches for esg 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 2, 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 2, 2026 How this list was built
1,346Companies
21,182Contacts tracked
10,097Verified emails
2,707Mobile numbers
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The 25 largest esg consulting firms based in the United Kingdom

Ranked by team size
Top 25 of 1,346 company matches for esg consulting firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 2, 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 Kingdom5,001-10,0009,214 contacts →

Exact match

“Sustainability is our business.”

Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
2Exact matchLondon, United Kingdom1,001-5,000949 contacts →

Exact match

“Morningstar Sustainalytics data and insights allow investors and companies to spend less time grappling with ESG and climate, and more time making the most of it.”

Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
3Exact matchLondon, United Kingdom1,001-5,000680 contacts →

Exact match

“Click the 'Follow' button and explore careers at Ricardo on our 'Jobs' and 'Life' tabs and at careers.ricardo.com.”

Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
4Exact matchStratford-Upon-Avon, United Kingdom201-500364 contacts →

Exact match

“Valpak, a Reconomy brand, is an EcoVadis Platinum certified leader in environmental compliance, recycling, and sustainability solutions.”

Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
5Exact matchLondon, United Kingdom501-1,000287 contacts →

Exact match

“Welcome to H&Z We offer more than successful strategy development.”

Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
6Exact matchEdinburgh, United Kingdom501-1,000253 contacts →

Exact match

“Wardell Armstrong is now part of SLR which is a leading global consultancy, accelerating our ability to deliver the net zero transition and helping our clients address critical…”

Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
7Exact matchLondon, United Kingdom501-1,000215 contacts →

Exact match

“Supported by a network of specialist consulting engineers, environmentalists and our own collective experience, our philosophy is simple: to provide a qualitative economic and…”

Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
8Exact matchBirmingham, United Kingdom51-200163 contacts →

Exact match

“Aqua Consultants provide tailored environmental consultancy to broaden your thinking, lead transformation, and achieve successful outcomes.”

Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
9Exact matchLondon, United Kingdom51-200155 contacts →

Exact match

“Overview Generation was established in 2004 as an independent, private, investment management partnership with offices in London and San Francisco.”

Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
10Exact matchAnglesey, United Kingdom201-500152 contacts →

Exact match

“Arthian has been established following a merger between Mabbett and IKM Consulting.”

Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
11Exact matchLondon, United Kingdom51-200149 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 2, 2026 · View company records in RevenueBase
12Exact matchLondon, United Kingdom51-200141 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
13Exact matchLondon, United Kingdom51-200119 contacts →

Exact match

“WeeFin is revolutionizing sustainable finance.”

Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
14Exact matchLondon, United Kingdom51-200118 contacts →

Exact match

“Black Sun Global is a stakeholder advisory and engagement agency that's been driving transformation and positive change for ambitious brands for more than 20 years.”

Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
15Exact matchUnited Kingdom51-200118 contacts →

Exact match

“Eric Salmon & Partners is a leading leadership and talent consulting firm that specializes in Executive Search, Governance Advisory & Leadership Advisory.”

Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
16Exact matchBirmingham, United Kingdom51-200111 contacts →

Exact match

“Since the launch, CFGI has provided solutions to clients’ most complex problems without the restrictions created by auditor independence rules.”

Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
17Exact matchUnited Kingdom51-200104 contacts →

Exact match

“Since 2006, VPWhite has been supporting major corporations and public institutions in their digital transformation by bridging business needs with high-value technological…”

Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
18Exact matchLondon, United Kingdom51-20097 contacts →

Exact match

“We are a multi-disciplinary ESG, Technical Advisory and digitalisation consultancy with specialist expertise in the real estate, property and construction sectors.”

Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
19Exact matchOxford, United Kingdom51-20093 contacts →

Exact match

“3Keel is an award-winning B-Corp sustainability consultancy committed to making systems, supply chains and landscapes fit for the future.”

Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
20Exact matchManchester, United Kingdom51-20092 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 2, 2026 · View company records in RevenueBase
21Exact matchTiverton, United Kingdom51-20091 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 2, 2026 · View company records in RevenueBase
22Exact matchLondon, United Kingdom51-20088 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 2, 2026 · View company records in RevenueBase
23Exact matchLondon, United Kingdom51-20083 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 2, 2026 · View company records in RevenueBase
24Exact matchLeeds, United Kingdom51-20082 contacts →

Exact match

“Design Portfolio helps forward-thinking companies build trust with their stakeholders through creative storytelling, integrated communications, and sustainability strategies.”

Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
25Exact matchMilton Keynes, United Kingdom51-20070 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 2, 2026 · View company records in RevenueBase

Showing 25 of 1,346 esg consulting firms based in the United Kingdom

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Esg consulting firms based in the United Kingdom at a glance

As of Sep 2, 2026
47.7%Verified-email coverage
12.8%Mobile-number coverage
15.7Average contacts per company
1-10Median size (employees)
42.3%Largest-city concentration · London
Sep 2, 2026Page data refreshed

Companies by employee count

1-10
995
11-50
254
51-200
68
201-500
6
501-1,000
5
1,001-5,000
4
5,001-10,000
1

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 “esg 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 10,097 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 2, 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 “esg consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 1,346 company matches for esg 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 esg consulting firms?

London leads with 570 company records, followed by Manchester (38) and Bristol (33).

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 10,097 professional contacts with verified work emails tracked across these 1,346 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 2, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,346 esg 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.