Company lists · Data refreshed September 2026

Top 25 Environmental consulting agencies based in the United Kingdom

Name: Environmental consulting agencies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 1,391 companies tracked

RevenueBase identified 1,391 environmental consulting agencies headquartered in the United Kingdom as of September 2026 and tracks 18,661 professional contacts across them, including 8,432 with verified work emails. London is the largest hub.

This list covers environmental consulting agencies 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 21, 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 21, 2026 86% judged on-target in blind review

1,391Companies

18,661Contacts tracked

8,432Verified emails

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The 25 largest environmental consulting agencies based in the United Kingdom

Ranked by team size

Top 25 of 1,391 environmental consulting agencies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to environmental consulting agencies: 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	RSK Group	Partial evidence	Helsby, United KingdomHQ checked Sep 21, 2026	10001+	1,255 contacts →
	Partial evidence “RSK Group is a global leader in the delivery of environmental and engineering solutions.” Source: RevenueBase Database · checked Sep 21, 2026
2	Ricardo PLC	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	1,001-5,000	670 contacts →
	Indirect evidence “Click the 'Follow' button and explore careers at Ricardo on our 'Jobs' and 'Life' tabs and at careers.ricardo.com.” Source: RevenueBase Database · checked Sep 21, 2026
3	Dalcour Maclaren	Partial evidence	Chesterton, United KingdomHQ checked Sep 21, 2026	501-1,000	589 contacts →
	Partial evidence “Dalcour Maclaren: delivering land, stakeholder and environmental solutions.” Source: RevenueBase Database · checked Sep 21, 2026
4	Fairhurst	Partial evidence	Glasgow, United KingdomHQ checked Sep 21, 2026	201-500	437 contacts →
	Partial evidence “Welcome to Fairhurst: Fairhurst is a Limited Liability Partnership (LLP) of Consulting Engineers practicing in the UK, employing circa 400 staff in 16 principal offices.” Source: RevenueBase Database · checked Sep 21, 2026
5	LUC	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	383 contacts →
	Partial evidence “LUC is an independent, employee-owned environmental consultancy celebrating its 60th anniversary.” Source: RevenueBase Database · checked Sep 21, 2026
6	Valpak Limited	Partial evidence	Stratford-upon-avon, United KingdomHQ checked Sep 21, 2026	201-500	347 contacts →
	Partial evidence “Valpak, a Reconomy brand, is an EcoVadis Platinum certified leader in environmental compliance, recycling, and sustainability solutions.” Source: RevenueBase Database · checked Sep 21, 2026
7	Atelier TEN	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	323 contacts →
	Partial evidence “As environmental design consultants, building services engineers and lighting designers, we are committed to high performance and sustainable design within the built environment.” Source: RevenueBase Database · checked Sep 21, 2026
8	Arbtech	Indirect evidence	Chester, United KingdomHQ checked Sep 21, 2026	51-200	218 contacts →
	Indirect evidence “Founded in 2005, Arbtech has grown into the UK's leading arboricultural and ecological consultancy.” Source: RevenueBase Database · checked Sep 21, 2026
9	Normec I2 Analytical	Partial evidence	Hertfordshire, United KingdomHQ checked Sep 21, 2026	201-500	218 contacts →
	Partial evidence “Founded in 2003, Normec i2 Analytical is one of Europe's leading environmental testing companies providing its customers a comprehensive range of analytical, monitoring and…” Source: RevenueBase Database · checked Sep 21, 2026
10	The Erith Group	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	501-1,000	217 contacts →
	Strong evidence “Supported by a network of specialist consulting engineers, environmentalists and our own collective experience, our philosophy is simple: to provide a qualitative economic and…” Source: RevenueBase Database · checked Sep 21, 2026
11	JURU	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	176 contacts →
	Partial 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 21, 2026
12	RSK Biocensus	Indirect evidence	Helsby, United KingdomHQ checked Sep 21, 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 21, 2026
13	Lucion	Indirect evidence	Gateshead, United KingdomHQ checked Sep 21, 2026	501-1,000	162 contacts →
	Indirect evidence “We're not just service providers; we're your long-term partners in creating a sustainable, compliant, and efficient future for your assets.” Source: RevenueBase Database · checked Sep 21, 2026
14	Aqua Consultants	Partial evidence	Leeds, United KingdomHQ checked Sep 21, 2026	51-200	156 contacts →
	Partial evidence “Aqua Consultants provide tailored environmental consultancy to broaden your thinking, lead transformation, and achieve successful outcomes.” Source: RevenueBase Database · checked Sep 21, 2026
15	Arthian LTD	Partial evidence	Glasgow, United KingdomHQ checked Sep 21, 2026	201-500	153 contacts →
	Partial evidence “Arthian has been established following a merger between Mabbett and IKM Consulting.” Source: RevenueBase Database · checked Sep 21, 2026
16	Eunomia Research & Consulting	Partial evidence	Bristol, United KingdomHQ checked Sep 21, 2026	51-200	143 contacts →
	Partial evidence “At Eunomia, we're social-environmental problem-solvers and researchers with a difference.” Source: RevenueBase Database · checked Sep 21, 2026
17	Thomson Environmental Consultants	Partial evidence	Guildford, United KingdomHQ checked Sep 21, 2026	51-200	133 contacts →
	Partial evidence “Thomson Environmental Consultants are experts in environmental compliance with offices in Guildford, Leeds, Cardiff, Birmingham and Manchester.” Source: RevenueBase Database · checked Sep 21, 2026
18	The Environmental Dimension Partnership LTD	Indirect evidence	Elkstone, United KingdomHQ checked Sep 21, 2026	51-200	125 contacts →
	Indirect evidence “At EDP we help develop extraordinary places + people.” Source: RevenueBase Database · checked Sep 21, 2026
19	Middlemarch	Partial evidence	Coventry, United KingdomHQ checked Sep 21, 2026	51-200	118 contacts →
	Partial 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 21, 2026
20	Environmental Essentials	Indirect evidence	Newcastle-Under-Lyme, United KingdomHQ checked Sep 21, 2026	201-500	116 contacts →
	Indirect evidence “Whether you need end-to-end asbestos consultancy and management or are simply looking for accredited compliance training, you’ve come to the right place.” Source: RevenueBase Database · checked Sep 21, 2026
21	Bradley Environmental Consultants Limited	Partial evidence	Halesowen, United KingdomHQ checked Sep 21, 2026	51-200	113 contacts →
	Partial evidence “Bradley Environmental, Powered by Vadella, is one of the UK's leading asbestos, environmental and health and safety consultancies.” Source: RevenueBase Database · checked Sep 21, 2026
22	Yordas Group	Indirect evidence	Lancaster, United KingdomHQ checked Sep 21, 2026	51-200	112 contacts →
	Indirect evidence “In 2026, Yordas Group was acquired by 3E, the leading global provider of expert-led AI compliance solutions for chemical and workplace safety, product stewardship, and sustainable…” Source: RevenueBase Database · checked Sep 21, 2026
23	Life Environmental Services	Partial evidence	Bishops Stortford, United KingdomHQ checked Sep 21, 2026	51-200	107 contacts →
	Partial evidence “Life Environmental Services \| Asbestos, Water, Fire & Mould Management Consultancy.” Source: RevenueBase Database · checked Sep 21, 2026
24	Acorn Analytical Services	Partial evidence	Northampton, United KingdomHQ checked Sep 21, 2026	51-200	105 contacts →
	Partial evidence “Acorn Analytical Services are a multi disciplined environmental consultancy, specifically set up to meet all of your asbestos management and statutory compliance needs.” Source: RevenueBase Database · checked Sep 21, 2026
25	Mrag LTD	Indirect evidence	London, United KingdomHQ checked Sep 21, 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 21, 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: environmental consulting agencies. 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 environmental consulting agencies.
Partial evidence: Its own public description names part of environmental consulting agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental consulting agencies. 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 1,391 environmental consulting agencies based in the United Kingdom

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Environmental consulting agencies based in the United Kingdom at a glance

As of Sep 21, 2026

45.2%Verified-email coverage

13.4Average contacts per company

1-10Median size (employees)

10.7%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

934

11-50

325

51-200

201-500

501-1,000

1,001-5,000

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 1,391 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 environmental consulting agencies, 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 “environmental consulting agencies”. 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 environmental consulting agencies), 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 environmental consulting agencies, 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, 8,432 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 21, 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.

Environmental consulting agencies by metro

Environmental consulting agencies in London149
Environmental consulting agencies in Glasgow27

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 environmental consulting agencies, 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 environmental consulting agencies are there based in the United Kingdom?

RevenueBase identified 1,391 environmental consulting agencies 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?

RSK Group, headquartered in Helsby, tops this list with the largest team on record.

Which city has the most environmental consulting agencies?

London leads with 149 headquartered companies, followed by Glasgow (27) and Edinburgh (23).

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 8,432 verified decision-maker contacts tracked across these 1,391 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 21, 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.