Company lists · Data refreshed September 2026

Top 25 Sustainability consultants based in the United Kingdom

Name: Sustainability consultants based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 3,025 companies tracked

RevenueBase identified 3,025 company matches for sustainability consultants associated with the United Kingdom as of September 2026 and tracks 53,157 professional contacts across them, including 27,973 with verified work emails. London is the largest hub.

This list covers company matches for sustainability consultants 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 22, 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 22, 2026 How this list was built

3,025Companies

53,157Contacts tracked

27,973Verified emails

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The 25 largest sustainability consultants based in the United Kingdom

Ranked by team size

Top 25 of 3,025 company matches for sustainability consultants based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	ERM	Exact match	London, United KingdomHQ recorded Sep 22, 2026	5,001-10,000	9,119 contacts →
	Exact match “Sustainability is our business.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
2	SLR Consulting	Exact match	London, United KingdomHQ recorded Sep 22, 2026	1,001-5,000	3,848 contacts →
	Exact match “SLR is a committed partner in our clients’ sustainability journeys.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
3	Baringa	Exact match	London, United KingdomHQ recorded Sep 22, 2026	1,001-5,000	2,179 contacts →
	Exact match “Baringa is a global consulting firm that helps leaders drive meaningful change and create value.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4	Cundall	Exact match	Newcastle Upon Tyne, United KingdomHQ recorded Sep 22, 2026	1,001-5,000	1,269 contacts →
	Exact match “We are a global, multi-disciplinary consultancy delivering sustainable engineering and design solutions across the built environment.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5	Hoare LEA	Exact match	London, United KingdomHQ recorded Sep 22, 2026	501-1,000	1,103 contacts →
	Exact match “We are an award-winning engineering consultancy with a creative team of engineers, designers, and technical specialists.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6	Ricardo PLC	Exact match	London, United KingdomHQ recorded Sep 22, 2026	1,001-5,000	670 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 22, 2026 · View company records in RevenueBase
7	Waterman Group	Exact match	London, United KingdomHQ recorded Sep 22, 2026	1,001-5,000	563 contacts →
	Exact match “Waterman Group is a multidisciplinary consultancy providing sustainable solutions to meet the planning, engineering design and project delivery needs of the property…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8	Hollis	Exact match	London, United KingdomHQ recorded Sep 22, 2026	201-500	461 contacts →
	Exact match “All together different - We’re independent, multi-disciplinary real estate technical experts, project managers, and sustainability consultants.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9	Fichtner Consulting Engineers LTD	Exact match	Stockport, United KingdomHQ recorded Sep 22, 2026	51-200	418 contacts →
	Exact match “Fichtner is one of the world's leading independent engineering consultancy firms.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10	LUC	Exact match	London, United KingdomHQ recorded Sep 22, 2026	201-500	383 contacts →
	Exact match “LUC is an independent, employee-owned environmental consultancy celebrating its 60th anniversary.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
11	Inspired PLC	Exact match	Kirkham, United KingdomHQ recorded Sep 22, 2026	501-1,000	373 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 22, 2026 · View company records in RevenueBase
12	Curtins	Exact match	Liverpool, United KingdomHQ recorded Sep 22, 2026	201-500	371 contacts →
	Exact match “At Curtins we believe that the true value of our work is defined by the difference for good we make in the lives of real people.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13	Hydrock, NOW Stantec	Exact match	Almondsbury, United KingdomHQ recorded Sep 22, 2026	501-1,000	352 contacts →
	Exact match “Hydrock now Stantec is an integrated engineering design, energy and sustainability consultancy.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14	Turley	Exact match	Manchester, United KingdomHQ recorded Sep 22, 2026	201-500	348 contacts →
	Exact match “Offering expert advisory services for the built environment and beyond, we work collaboratively with our clients to deliver places and communities that thrive.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15	Valpak Limited	Exact match	Stratford-upon-avon, United KingdomHQ recorded Sep 22, 2026	201-500	347 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 22, 2026 · View company records in RevenueBase
16	Atelier TEN	Exact match	London, United KingdomHQ recorded Sep 22, 2026	51-200	323 contacts →
	Exact match “As environmental design consultants, building services engineers and lighting designers, we are committed to high performance and sustainable design within the built environment.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17	CPW	Exact match	Birmingham, United KingdomHQ recorded Sep 22, 2026	201-500	317 contacts →
	Exact match “Climate change is without a doubt the greatest challenge we face in these times.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18	EIC Partnership	Exact match	Redditch, United KingdomHQ recorded Sep 22, 2026	51-200	316 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 22, 2026 · View company records in RevenueBase
19	Baily Garner	Exact match	Eltham, United KingdomHQ recorded Sep 22, 2026	201-500	270 contacts →
	Exact match “Baily Garner is a leading multidisciplinary construction consultancy on a mission to positively impact people's lives.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20	Turner & Townsend Alinea	Exact match	London, United KingdomHQ recorded Sep 22, 2026	201-500	256 contacts →
	Exact match “Turner and Townsend and alinea has joined forces to create a true data-led digital cost consultancy intent on becoming an authority on the economics of sustainability.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21	Wardell Armstrong LLP NOW SLR	Exact match	Birmingham, United KingdomHQ recorded Sep 22, 2026	501-1,000	253 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22	TFT	Exact match	London, United KingdomHQ recorded Sep 22, 2026	201-500	250 contacts →
	Exact match “TFT is an independent commercial building consultancy which places the performance of buildings and the wellbeing of people at the heart of its work.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23	Hilson Moran	Exact match	London, United KingdomHQ recorded Sep 22, 2026	201-500	231 contacts →
	Exact match “We are interdisciplinary consultants, engineers and advisors, applying progressive design thinking to shape the environments we live in.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24	MAX Fordham LLP	Exact match	London, United KingdomHQ recorded Sep 22, 2026	201-500	208 contacts →
	Exact match “Max Fordham LLP is a partnership of engineers, designers and consultants, working with the built environment, to deliver a sustainable future and a thriving planet.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25	Frankham Group	Exact match	Sidcup, United KingdomHQ recorded Sep 22, 2026	51-200	192 contacts →
	Exact match “The Frankham Group provides a full range of consultany services to the built environment, including design, engineering and compliance.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “sustainability consultants”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 3,025 sustainability consultants based in the United Kingdom

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Sustainability consultants based in the United Kingdom at a glance

As of Sep 22, 2026

52.6%Verified-email coverage

17.6Average contacts per company

1-10Median size (employees)

30.6%Largest-city concentration · London

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

2,182

11-50

612

51-200

161

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 3,025 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 “sustainability consultants” 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 27,973 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 22, 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.

Sustainability consultants by metro

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 “sustainability consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many sustainability consultants are there based in the United Kingdom?

RevenueBase identified 3,025 company matches for sustainability consultants 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 sustainability consultants?

London leads with 927 company records, followed by Manchester (73) and Bristol (70).

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 27,973 professional contacts with verified work emails tracked across these 3,025 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 22, 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.