Company lists · Data refreshed September 2026

Top 25 Climate adaptation consultancies based in the United Kingdom

Name: Climate adaptation consultancies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 833 companies tracked

RevenueBase identified 833 climate adaptation consultancies headquartered in the United Kingdom as of September 2026 and tracks 25,201 professional contacts across them, including 13,742 with verified work emails. London is the largest hub.

This list covers climate adaptation consultancies 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

833Companies

25,201Contacts tracked

13,742Verified emails

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The 25 largest climate adaptation consultancies based in the United Kingdom

Ranked by team size

Top 25 of 833 climate adaptation consultancies 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 climate adaptation consultancies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	ERM	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	5,001-10,000	9,119 contacts →
	Indirect evidence “Sustainability is our business.” Source: RevenueBase Database · checked Sep 27, 2026
2	SLR Consulting	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	1,001-5,000	3,848 contacts →
	Indirect evidence “SLR is a committed partner in our clients’ sustainability journeys.” Source: RevenueBase Database · checked Sep 27, 2026
3	Baringa	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	1,001-5,000	2,179 contacts →
	Indirect evidence “Baringa is a global consulting firm that helps leaders drive meaningful change and create value.” Source: RevenueBase Database · checked Sep 27, 2026
4	JBA Consulting	Partial evidence	Skipton, United KingdomHQ checked Sep 27, 2026	501-1,000	720 contacts →
	Partial evidence “Leading in society's pursuit for resilience to climate change.” Source: RevenueBase Database · checked Sep 27, 2026
5	Pell Frischmann	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	501-1,000	690 contacts →
	Indirect evidence “Pell Frischmann is a specialist advisory and technical consultancy operating across the built and natural environment, helping to shape a better future for the communities in…” Source: RevenueBase Database · checked Sep 27, 2026
6	E CO	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	n/a	621 contacts →
	Partial evidence “For over 26 years, our consultants have been supporting and guiding our clients to achieve low-carbon climate-resilient development.” Source: RevenueBase Database · checked Sep 27, 2026
7	Wardell Armstrong LLP NOW SLR	Indirect evidence	Birmingham, United KingdomHQ checked Sep 27, 2026	501-1,000	253 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026
8	JURU	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	176 contacts →
	Indirect evidence “Founded in 2015, Juru is an international engineering and consultancy firm with a mission to solve engineering and environmental problems.” Source: RevenueBase Database · checked Sep 27, 2026
9	RSK Biocensus	Indirect evidence	Helsby, United KingdomHQ checked Sep 27, 2026	201-500	164 contacts →
	Indirect evidence “RSK Biocensus is an ecological consultancy with a presence across the country and an extensive network of ecologists throughout the UK.” Source: RevenueBase Database · checked Sep 27, 2026
10	Aqua Consultants	Indirect evidence	Leeds, United KingdomHQ checked Sep 27, 2026	51-200	156 contacts →
	Indirect evidence “Aqua Consultants provide tailored environmental consultancy to broaden your thinking, lead transformation, and achieve successful outcomes.” Source: RevenueBase Database · checked Sep 27, 2026
11	Evora Global	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	148 contacts →
	Indirect evidence “EVORA is an award-winning global sustainability consultancy and software provider supporting real asset investors, owners, and operators.” Source: RevenueBase Database · checked Sep 27, 2026
12	Thomson Environmental Consultants	Indirect evidence	Guildford, United KingdomHQ checked Sep 27, 2026	51-200	133 contacts →
	Indirect evidence “Thomson Environmental Consultants are experts in environmental compliance with offices in Guildford, Leeds, Cardiff, Birmingham and Manchester.” Source: RevenueBase Database · checked Sep 27, 2026
13	Consultus	Indirect evidence	Leicester, United KingdomHQ checked Sep 27, 2026	51-200	129 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 27, 2026
14	Middlemarch	Indirect evidence	Coventry, United KingdomHQ checked Sep 27, 2026	51-200	118 contacts →
	Indirect evidence “With a legacy of over 30 years, we are a UK leading independent consultancy specialising in the preservation of the natural environment.” Source: RevenueBase Database · checked Sep 27, 2026
15	Longevity Partners	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	115 contacts →
	Indirect evidence “Longevity Partners is a multidisciplinary energy and sustainability consultancy.” Source: RevenueBase Database · checked Sep 27, 2026
16	Mrag LTD	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	103 contacts →
	Indirect evidence “Established in the UK in 1986, MRAG Ltd is a consultancy company dedicated to promoting sustainable use of aquatic resources through sound integrated management policies and…” Source: RevenueBase Database · checked Sep 27, 2026
17	ARUP	Indirect evidence	Solihull, United KingdomHQ checked Sep 27, 2026	501-1,000	96 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026
18	3keel	Indirect evidence	Oxford, United KingdomHQ checked Sep 27, 2026	51-200	93 contacts →
	Indirect evidence “3Keel is an award-winning B-Corp sustainability consultancy committed to making systems, supply chains and landscapes fit for the future.” Source: RevenueBase Database · checked Sep 27, 2026
19	Greengage Environmental LTD	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	93 contacts →
	Indirect evidence “Greengage is an independent sustainability and environmental consultancy known for providing bespoke advice and working in partnership with our clients and multi-disciplinary…” Source: RevenueBase Database · checked Sep 27, 2026
20	SAC Consulting	Partial evidence	Edinburgh, United KingdomHQ checked Sep 27, 2026	51-200	91 contacts →
	Partial evidence “SAC Consulting is one of the leading agricultural consultancies in the UK, uniquely placed to support the sustainable growth and prosperity of agriculture, food, and land-based…” Source: RevenueBase Database · checked Sep 27, 2026
21	Ecology Solutions	Indirect evidence	Broadway, United KingdomHQ checked Sep 27, 2026	11-50	85 contacts →
	Indirect evidence “Ecology Solutions is a leading multidisciplinary environmental consultancy, specialising in ecology, archaeology and heritage, landscape design, mitigation and biodiversity.” Source: RevenueBase Database · checked Sep 27, 2026
22	Xco2	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	84 contacts →
	Indirect evidence “We are a multidisciplinary group with backgrounds in engineering, architecture and environmental science, working as consultants for buildings, large developments and masterplans…” Source: RevenueBase Database · checked Sep 27, 2026
23	Gobe Consultants LTD	Indirect evidence	Buckfastleigh, United KingdomHQ checked Sep 27, 2026	11-50	84 contacts →
	Indirect evidence “Providing high quality strategic and project specific planning and environmental advice to the offshore development industries, we, GoBe, are specialists in offshore renewables…” Source: RevenueBase Database · checked Sep 27, 2026
24	The Biodiversity Consultancy LTD	Indirect evidence	Cambridge, United KingdomHQ checked Sep 27, 2026	51-200	79 contacts →
	Indirect evidence “The Biodiversity Consultancy exists to make positive biodiversity impact second nature for business.” Source: RevenueBase Database · checked Sep 27, 2026
25	CSA Environmental	Indirect evidence	Ashwell, United KingdomHQ checked Sep 27, 2026	51-200	76 contacts →
	Indirect evidence “CSA Environmental is a multidisciplinary environmental consultancy practice providing specialist advice covering Ecology, Heritage, Landscape, and Masterplanning and Urban Design.” Source: RevenueBase Database · checked Sep 27, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: climate adaptation consultancies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names climate adaptation consultancies.
Partial evidence: Its own public description names part of climate adaptation consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name climate adaptation consultancies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 833 climate adaptation consultancies based in the United Kingdom

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Climate adaptation consultancies based in the United Kingdom at a glance

As of Sep 27, 2026

54.5%Verified-email coverage

30.3Average contacts per company

1-10Median size (employees)

33.6%Largest-city concentration · London

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

614

11-50

157

51-200

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 833 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 climate adaptation consultancies, 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 “climate adaptation consultancies”. 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 climate adaptation consultancies), 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 climate adaptation consultancies, 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, 13,742 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 climate adaptation consultancies, 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 climate adaptation consultancies are there based in the United Kingdom?

RevenueBase identified 833 climate adaptation consultancies 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?

ERM, headquartered in London, tops this list with the largest team on record.

Which city has the most climate adaptation consultancies?

London leads with 280 headquartered companies, followed by Edinburgh (18) and Glasgow (17).

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 13,742 verified decision-maker contacts tracked across these 833 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.