Company lists · Data refreshed September 2026

Top 25 Environmental impact assessment companies based in the United Kingdom

Name: Environmental impact assessment companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 612 companies tracked

RevenueBase identified 612 environmental impact assessment companies headquartered in the United Kingdom as of September 2026 and tracks 8,213 professional contacts across them, including 4,521 with verified work emails. London is the largest hub.

This list covers environmental impact assessment companies 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 19, 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 19, 2026 86% judged on-target in blind review

612Companies

8,213Contacts tracked

4,521Verified emails

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The 25 largest environmental impact assessment companies based in the United Kingdom

Ranked by team size

Top 25 of 612 environmental impact assessment companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to environmental impact assessment companies: 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	Dalcour Maclaren	Partial evidence	Chesterton, United KingdomHQ checked Sep 19, 2026	501-1,000	589 contacts →
	Partial evidence “Dalcour Maclaren: delivering land, stakeholder and environmental solutions.” Source: RevenueBase Database · checked Sep 19, 2026
2	LUC	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	383 contacts →
	Partial evidence “LUC is an independent, employee-owned environmental consultancy celebrating its 60th anniversary.” Source: RevenueBase Database · checked Sep 19, 2026
3	Arbtech	Indirect evidence	Chester, United KingdomHQ checked Sep 19, 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 19, 2026
4	JURU	Partial evidence	London, United KingdomHQ checked Sep 19, 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 19, 2026
5	RSK Biocensus	Indirect evidence	Helsby, United KingdomHQ checked Sep 19, 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 19, 2026
6	Aqua Consultants	Partial evidence	Leeds, United KingdomHQ checked Sep 19, 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 19, 2026
7	Arthian LTD	Indirect evidence	Glasgow, United KingdomHQ checked Sep 19, 2026	201-500	153 contacts →
	Indirect evidence “Arthian has been established following a merger between Mabbett and IKM Consulting.” Source: RevenueBase Database · checked Sep 19, 2026
8	Thomson Environmental Consultants	Partial evidence	Guildford, United KingdomHQ checked Sep 19, 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 19, 2026
9	The Environmental Dimension Partnership LTD	Indirect evidence	Elkstone, United KingdomHQ checked Sep 19, 2026	51-200	125 contacts →
	Indirect evidence “At EDP we help develop extraordinary places + people.” Source: RevenueBase Database · checked Sep 19, 2026
10	Middlemarch	Partial evidence	Coventry, United KingdomHQ checked Sep 19, 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 19, 2026
11	AES Sustainability Consultants	Indirect evidence	Tiverton, United KingdomHQ checked Sep 19, 2026	51-200	92 contacts →
	Indirect evidence “AES Sustainability Consultants is a leading technical consultancy that delivers value engineered solutions across the homebuilding and construction industries.” Source: RevenueBase Database · checked Sep 19, 2026
12	Cura Terrae Land & Nature	Strong evidence	Sheffield, United KingdomHQ checked Sep 19, 2026	51-200	92 contacts →
	Strong evidence “Our multidisciplinary teams work together to combine their expertise in ecology, the historic environment, environmental impact assessment, landscape architecture, habitat…” Source: RevenueBase Database · checked Sep 19, 2026
13	Lanpro	Partial evidence	Norwich, United KingdomHQ checked Sep 19, 2026	51-200	87 contacts →
	Partial evidence “We are planning-led multi-disciplinary environmental consultants.” Source: RevenueBase Database · checked Sep 19, 2026
14	Ecology Solutions	Partial evidence	Broadway, United KingdomHQ checked Sep 19, 2026	11-50	85 contacts →
	Partial 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 19, 2026
15	Gobe Consultants LTD	Partial evidence	Buckfastleigh, United KingdomHQ checked Sep 19, 2026	11-50	84 contacts →
	Partial 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 19, 2026
16	Stephenson Halliday	Indirect evidence	Kendal, United KingdomHQ checked Sep 19, 2026	51-200	80 contacts →
	Indirect evidence “We believe that high quality, well planned development is the driver for sustainable economic growth.” Source: RevenueBase Database · checked Sep 19, 2026
17	Bluwin	Partial evidence	Huddersfield, United KingdomHQ checked Sep 19, 2026	51-200	77 contacts →
	Partial evidence “Bluwin is a high-impact climate solution provider whose mission is to contribute to a better world and better quality of life by providing solutions which reduce the adverse…” Source: RevenueBase Database · checked Sep 19, 2026
18	SRL Technical Services LTD	Partial evidence	Sudbury, United KingdomHQ checked Sep 19, 2026	11-50	77 contacts →
	Partial evidence “SRL Technical Serviced Ltd is a leading independent environmental engineering consultancy.” Source: RevenueBase Database · checked Sep 19, 2026
19	CSA Environmental	Partial evidence	Ashwell, United KingdomHQ checked Sep 19, 2026	51-200	76 contacts →
	Partial 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 19, 2026
20	Rappor	Partial evidence	Cheltenham, United KingdomHQ checked Sep 19, 2026	51-200	75 contacts →
	Partial evidence “Rappor is an engineering and environmental consultancy working in partnership to steer sustainable development.” Source: RevenueBase Database · checked Sep 19, 2026
21	Atmos Consulting LTD	Partial evidence	Edinburgh, United KingdomHQ checked Sep 19, 2026	51-200	75 contacts →
	Partial evidence “Atmos Consulting is a modern and dynamic environmental and planning consultancy uniquely structured to offer superior service to its clients by providing cost-effective, robust…” Source: RevenueBase Database · checked Sep 19, 2026
22	Rammsanderson Ecology LTD	Indirect evidence	Beeston, United KingdomHQ checked Sep 19, 2026	51-200	74 contacts →
	Indirect evidence “RammSanderson Ecology Ltd is a specialist ecological consultancy based at offices in the East Midlands, West Midlands, Yorkshire, North West, South West and South East, offering…” Source: RevenueBase Database · checked Sep 19, 2026
23	BSG Ecology	Indirect evidence	Abingdon, United KingdomHQ checked Sep 19, 2026	51-200	73 contacts →
	Indirect evidence “BSG Ecology is an award-winning independent ecological consultancy.” Source: RevenueBase Database · checked Sep 19, 2026
24	Envirocentre	Indirect evidence	Glasgow, United KingdomHQ checked Sep 19, 2026	51-200	71 contacts →
	Indirect evidence “EnviroCentre is a solutions orientated consultancy that has a proven track record in providing innovative, effective and valuable advice.” Source: RevenueBase Database · checked Sep 19, 2026
25	Brindle & Green Environmental Consultants	Indirect evidence	Radbourne, United KingdomHQ checked Sep 19, 2026	51-200	64 contacts →
	Indirect evidence “Over the last decade, Brindle & Green has worked tirelessly to create a business that strives for technical excellence alongside being recognised for creating a culture for our…” Source: RevenueBase Database · checked Sep 19, 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 impact assessment companies. 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 impact assessment companies.
Partial evidence: Its own public description names part of environmental impact assessment companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental impact assessment companies. 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 612 environmental impact assessment companies based in the United Kingdom

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Environmental impact assessment companies based in the United Kingdom at a glance

As of Sep 19, 2026

55.0%Verified-email coverage

13.4Average contacts per company

1-10Median size (employees)

8.2%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

405

11-50

151

51-200

201-500

501-1,000

1,001-5,000

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 612 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 impact assessment companies, 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 impact assessment companies”. 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 impact assessment companies), 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 impact assessment companies, 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, 4,521 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 19, 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 impact assessment companies by metro

Environmental impact assessment companies in London50

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 impact assessment companies, 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 impact assessment companies are there based in the United Kingdom?

RevenueBase identified 612 environmental impact assessment companies 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?

Dalcour Maclaren, headquartered in Chesterton, tops this list with the largest team on record.

Which city has the most environmental impact assessment companies?

London leads with 50 headquartered companies, followed by Edinburgh (15) and Bristol (10).

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 4,521 verified decision-maker contacts tracked across these 612 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 19, 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.