Company lists · Data refreshed September 2026

Top 25 Environmental research organizations based in the United Kingdom

Name: Environmental research organizations 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 720 companies tracked

RevenueBase identified 720 environmental research organizations headquartered in the United Kingdom as of September 2026 and tracks 13,377 professional contacts across them, including 4,549 with verified work emails. London is the largest hub.

This list covers environmental research organizations 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

720Companies

13,377Contacts tracked

4,549Verified emails

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The 25 largest environmental research organizations based in the United Kingdom

Ranked by team size

Top 25 of 720 environmental research organizations 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 research organizations: 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 19, 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 19, 2026
2	Centre For Alternative Technology	Indirect evidence	Machynlleth, United KingdomHQ checked Sep 19, 2026	n/a	618 contacts →
	Indirect evidence “Mae Canolfan y Dechnoleg Amgen yn elusen addysg amgylcheddol sydd wedi bod yn rhannu atebion i faterion amgylcheddol ac ymchwilio iddyn nhw ers dros 50 mlynedd – gan weithio tuag…” Source: RevenueBase Database · checked Sep 19, 2026
3	CEFAS	Strong evidence	Lowestoft, United KingdomHQ checked Sep 19, 2026	501-1,000	559 contacts →
	Strong evidence “Cefas (Centre for Environment, Fisheries and Aquaculture Science) is an internationally renowned aquatic scientific research and consultancy centre.” Source: RevenueBase Database · checked Sep 19, 2026
4	Valpak Limited	Partial evidence	Stratford-upon-avon, United KingdomHQ checked Sep 19, 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 19, 2026
5	Clientearth	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	324 contacts →
	Indirect evidence “We are a non-profit using the power of the law to bring about end-to-end systemic change: informing, implementing and enforcing the law, drafting and advising decision-makers on…” Source: RevenueBase Database · checked Sep 19, 2026
6	Nerc Natural Environment Research Council	Strong evidence	Swindon, United KingdomHQ checked Sep 19, 2026	1,001-5,000	302 contacts →
	Strong evidence “UKRI Natural Environment Research Council is the UK’s leading public funder of environmental science.” Source: RevenueBase Database · checked Sep 19, 2026
7	Blue Ventures	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	255 contacts →
	Indirect evidence “We believe the power to restore our oceans lives in the coastal communities bearing witness to the planetary crises.” Source: RevenueBase Database · checked Sep 19, 2026
8	International Institute For Environment And Development Iied	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	245 contacts →
	Partial evidence “The International Institute for Environment and Development (IIED) is a global leader in sustainable development.” Source: RevenueBase Database · checked Sep 19, 2026
9	Normec I2 Analytical	Partial evidence	Hertfordshire, United KingdomHQ checked Sep 19, 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 19, 2026
10	Greenpeace UK	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	167 contacts →
	Partial evidence “Greenpeace is an independent global campaigning network that acts to change attitudes and behaviour, to protect and conserve the environment and to promote peace.” Source: RevenueBase Database · checked Sep 19, 2026
11	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
12	Eunomia Research & Consulting	Strong evidence	Bristol, United KingdomHQ checked Sep 19, 2026	51-200	143 contacts →
	Strong evidence “At Eunomia, we're social-environmental problem-solvers and researchers with a difference.” Source: RevenueBase Database · checked Sep 19, 2026
13	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
14	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
15	Institute Of Occupational Medicine IOM	Strong evidence	Edinburgh, United KingdomHQ checked Sep 19, 2026	51-200	116 contacts →
	Strong evidence “We are a long-standing, independent organisation which offers research, consulting and services in occupational and environmental health, asbestos services, workplace hygiene and…” Source: RevenueBase Database · checked Sep 19, 2026
16	Yordas Group	Indirect evidence	Lancaster, United KingdomHQ checked Sep 19, 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 19, 2026
17	A Rocha International	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	107 contacts →
	Indirect evidence “A Rocha is a global family of conservation organizations working together to live out God’s calling to care for creation and equip others to do likewise.” Source: RevenueBase Database · checked Sep 19, 2026
18	British Ecological Society	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	106 contacts →
	Indirect evidence “We are a global community of scientists shining a spotlight on the intricacy and value of our natural world, providing the evidence for better decisions.” Source: RevenueBase Database · checked Sep 19, 2026
19	Mrag LTD	Indirect evidence	London, United KingdomHQ checked Sep 19, 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 19, 2026
20	Environmental Justice Foundation EJF	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	94 contacts →
	Partial evidence “The Environmental Justice Foundation (EJF) exists to protect the natural world and defend our basic human right to a secure environment.” Source: RevenueBase Database · checked Sep 19, 2026
21	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
22	The Office For Environmental Protection	Partial evidence	Worcester, United KingdomHQ checked Sep 19, 2026	51-200	83 contacts →
	Partial evidence “The Office for Environmental Protection (OEP) protects and improves the environment by holding government and other public authorities to account.” Source: RevenueBase Database · checked Sep 19, 2026
23	Environmental Investigation Agency	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	77 contacts →
	Partial evidence “Environmental Investigation Agency UK is a UK charity, number 1182208.” Source: RevenueBase Database · checked Sep 19, 2026
24	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
25	Global Canopy	Indirect evidence	Oxford, United KingdomHQ checked Sep 19, 2026	51-200	74 contacts →
	Indirect evidence “Global Canopy is a data-driven not for profit that targets the market forces destroying nature.” 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 research organizations. 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 research organizations.
Partial evidence: Its own public description names part of environmental research organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental research organizations. 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 720 environmental research organizations based in the United Kingdom

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Environmental research organizations based in the United Kingdom at a glance

As of Sep 19, 2026

34.0%Verified-email coverage

18.6Average contacts per company

1-10Median size (employees)

21.8%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

451

11-50

170

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 720 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 research organizations, 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 research organizations”. 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 research organizations), 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 research organizations, 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, 4,549 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 research organizations by metro

Environmental research organizations in London157

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 research organizations, 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 research organizations are there based in the United Kingdom?

RevenueBase identified 720 environmental research organizations 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 research organizations?

London leads with 157 headquartered companies, followed by Oxford (23) and Cambridge (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 4,549 verified decision-maker contacts tracked across these 720 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.