Company lists · Data refreshed September 2026

Top 25 Environmental foundations based in the United Kingdom

Name: Environmental foundations 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 335 companies tracked

RevenueBase identified 335 company matches for environmental foundations associated with the United Kingdom as of September 2026 and tracks 2,998 professional contacts across them, including 1,497 with verified work emails. London is the largest hub.

This list covers company matches for environmental foundations 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 19, 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 19, 2026 How this list was built

335Companies

2,998Contacts tracked

1,497Verified emails

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The 25 largest environmental foundations based in the United Kingdom

Ranked by team size

Top 25 of 335 company matches for environmental foundations based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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	RSK Biocensus	Exact match	Helsby, United KingdomHQ recorded Sep 19, 2026	201-500	164 contacts →
	Exact match “RSK Biocensus is an ecological consultancy with a presence across the country and an extensive network of ecologists throughout the UK.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	Eunomia Research & Consulting	Exact match	Bristol, United KingdomHQ recorded Sep 19, 2026	51-200	143 contacts →
	Exact match “At Eunomia, we're social-environmental problem-solvers and researchers with a difference.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	Thomson Environmental Consultants	Exact match	Guildford, United KingdomHQ recorded Sep 19, 2026	51-200	133 contacts →
	Exact match “Thomson Environmental Consultants are experts in environmental compliance with offices in Guildford, Leeds, Cardiff, Birmingham and Manchester.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	Middlemarch	Exact match	Coventry, United KingdomHQ recorded Sep 19, 2026	51-200	118 contacts →
	Exact match “With a legacy of over 30 years, we are a UK leading independent consultancy specialising in the preservation of the natural environment.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	Mrag LTD	Exact match	London, United KingdomHQ recorded Sep 19, 2026	11-50	103 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	Greengage Environmental LTD	Exact match	London, United KingdomHQ recorded Sep 19, 2026	51-200	93 contacts →
	Exact match “Greengage is an independent sustainability and environmental consultancy known for providing bespoke advice and working in partnership with our clients and multi-disciplinary…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	CSA Environmental	Exact match	Ashwell, United KingdomHQ recorded Sep 19, 2026	51-200	76 contacts →
	Exact match “CSA Environmental is a multidisciplinary environmental consultancy practice providing specialist advice covering Ecology, Heritage, Landscape, and Masterplanning and Urban Design.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	Rammsanderson Ecology LTD	Exact match	Beeston, United KingdomHQ recorded Sep 19, 2026	51-200	74 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	BSG Ecology	Exact match	Abingdon, United KingdomHQ recorded Sep 19, 2026	51-200	73 contacts →
	Exact match “BSG Ecology is an award-winning independent ecological consultancy.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	Envirocentre	Exact match	Glasgow, United KingdomHQ recorded Sep 19, 2026	51-200	71 contacts →
	Exact match “EnviroCentre is a solutions orientated consultancy that has a proven track record in providing innovative, effective and valuable advice.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	Action Sustainability	Exact match	London, United KingdomHQ recorded Sep 19, 2026	51-200	62 contacts →
	Exact match “Recognised for its commitment to employees with a sought-after Best Companies “One To Watch” industry standard, Action Sustainability offers a 3-in-1 solution through…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	Fiverivers	Exact match	Codford, United KingdomHQ recorded Sep 19, 2026	51-200	49 contacts →
	Exact match “FiveRivers is a leading industry specialist in the consultation, design and delivery of ecological and environmental solutions.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	Bowland Ecology LTD	Exact match	New, United KingdomHQ recorded Sep 19, 2026	11-50	43 contacts →
	Exact match “Bowland Ecology is an independent practice specialising in ecological consultancy.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	Keystone Environmental LTD	Exact match	Tetbury, United KingdomHQ recorded Sep 19, 2026	11-50	43 contacts →
	Exact match “Keystone Environmental is an ecological consultancy with a practical, intelligent and pioneering approach to advising its clients.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Ironside Farrar Limited	Exact match	Lothian, United KingdomHQ recorded Sep 19, 2026	51-200	41 contacts →
	Exact match “Environmental Consultants.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	Threeshires Limited	Exact match	Scalford, United KingdomHQ recorded Sep 19, 2026	51-200	40 contacts →
	Exact match “We specialise in single point provision of Ecological Consultancy in parallel with the physical delivery by in-house staff of physical site works, ranging from phase one surveys…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	Cbec Eco-Engineering UK & Europe	Exact match	Inverness, United KingdomHQ recorded Sep 19, 2026	11-50	36 contacts →
	Exact match “CBEC eco-engineering is a leading UK environmental consultant specialising in the provision of eco-engineering solutions for the aquatic environment.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	Waterman Environmental Services Limited	Exact match	Lichfield, United KingdomHQ recorded Sep 19, 2026	51-200	36 contacts →
	Exact match “WATERMAN ENVIRONMENTAL SERVICES LIMITED is an environmental services company based out of AQUA HOUSE BRITANNIA ENTERPRISE PARK EUROPA WAY, LICHFIELD, United Kingdom.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19	MKA Ecology	Exact match	Cambridgeshire, United KingdomHQ recorded Sep 19, 2026	11-50	34 contacts →
	Exact match “MKA Ecology is an environmental consultancy specialising in providing detailed ecological surveys.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20	Brooks Ecological LTD	Exact match	Guiseley, United KingdomHQ recorded Sep 19, 2026	11-50	33 contacts →
	Exact match “Brooks Ecological Ltd is a well-established ecological consultancy located in Leeds.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21	Envance	Exact match	Stockport, United KingdomHQ recorded Sep 19, 2026	11-50	29 contacts →
	Exact match “We believe that a better future for people and the planet doesn't have to be at the expense of success in the present.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22	Ethos Environmental Planning	Exact match	Bath, United KingdomHQ recorded Sep 19, 2026	11-50	28 contacts →
	Exact match “Ethos is comprised of a specialist team of ecological, environmental and GIS consultants based in Bath, Somerset.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23	Avian Ecology LTD	Exact match	Northwich, United KingdomHQ recorded Sep 19, 2026	11-50	28 contacts →
	Exact match “Avian Ecology is led by skilled ecologists who also understand business.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24	Ecosupport LTD	Exact match	Lee-on-the-solent, United KingdomHQ recorded Sep 19, 2026	11-50	27 contacts →
	Exact match “Established in 2006 we are an independent ecological consultancy providing a cost effective and knowledgable service to a wide range of commercial and private clients across…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25	Aquatera LTD	Exact match	Stromness, United KingdomHQ recorded Sep 19, 2026	11-50	26 contacts →
	Exact match “Operating globally from a hub in Orkney, off the north coast of Scotland, Aquatera provides environmental expertise and operational support for offshore, coastal and land-based…” Recorded in the RevenueBase company graph · Sep 19, 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 “environmental foundations”. 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 335 environmental foundations based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,497 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Environmental foundations based in the United Kingdom at a glance

As of Sep 19, 2026

49.9%Verified-email coverage

8.9Average contacts per company

1-10Median size (employees)

15.2%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

240

11-50

51-200

201-500

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 335 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 “environmental foundations” 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 1,497 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 19, 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.

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

How many environmental foundations are there based in the United Kingdom?

RevenueBase identified 335 company matches for environmental foundations 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?

RSK Biocensus tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most environmental foundations?

London leads with 51 company records, followed by Oxford (7) and Bristol (6).

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 1,497 professional contacts with verified work emails tracked across these 335 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 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 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.