Company lists · Data refreshed September 2026

Top 25 Ecological consulting firms based in London, United Kingdom

Name: Ecological consulting firms based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 12, 2026 93 companies tracked

RevenueBase identified 93 ecological consulting firms headquartered in London, United Kingdom as of September 2026 and tracks 2,532 professional contacts across them, including 1,332 with verified work emails and 191 with mobile numbers. London is the largest hub.

This list covers ecological consulting firms headquartered in London, 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 12, 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 12, 2026 86% judged on-target in blind review

93Companies

2,532Contacts tracked

1,332Verified emails

191Mobile numbers

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The 25 largest ecological consulting firms based in London, United Kingdom

Ranked by team size

Top 25 of 93 ecological consulting firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 12, 2026. RevenueBase Smart Search rates how each company's information relates to ecological consulting firms: 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	Ricardo PLC	Indirect evidence	London, United KingdomHQ checked Sep 12, 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 12, 2026
2	LUC	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	201-500	383 contacts →
	Indirect evidence “LUC is an independent, employee-owned environmental consultancy celebrating its 60th anniversary.” Source: RevenueBase Database · checked Sep 12, 2026
3	Atelier TEN	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	51-200	323 contacts →
	Indirect 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 12, 2026
4	The Erith Group	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	501-1,000	217 contacts →
	Partial 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 12, 2026
5	JURU	Indirect evidence	London, United KingdomHQ checked Sep 12, 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 12, 2026
6	Mrag LTD	Indirect evidence	London, United KingdomHQ checked Sep 12, 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 12, 2026
7	Greengage Environmental LTD	Indirect evidence	London, United KingdomHQ checked Sep 12, 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 12, 2026
8	Xco2	Indirect evidence	London, United KingdomHQ checked Sep 12, 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 12, 2026
9	Logika Group	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	51-200	43 contacts →
	Indirect evidence “Logika Group provides clients with a broad range of high quality environmental and design consultancy services.” Source: RevenueBase Database · checked Sep 12, 2026
10	Hcuk Group	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	33 contacts →
	Indirect evidence “Arboriculture, Ecology, Landscape, Archaeology, Heritage, Visualisations – helping you translate complexity into practical steps.” Source: RevenueBase Database · checked Sep 12, 2026
11	Robertsbridge	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	29 contacts →
	Indirect evidence “Robertsbridge advises major companies as they navigate the increasingly complex intersection of sustainability, climate, nature, and geopolitics.” Source: RevenueBase Database · checked Sep 12, 2026
12	Logika Consultants LTD Part Of Logika Group	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	1-10	25 contacts →
	Indirect evidence “At Logika Consultants Ltd, we believe that our future relies on environmental consultancy that supports progressive and sustainable development, and a healthier world.” Source: RevenueBase Database · checked Sep 12, 2026
13	Locri Recruitment	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	1-10	18 contacts →
	Indirect evidence “Locri offers a new model that’s good for studios and for individual careers.” Source: RevenueBase Database · checked Sep 12, 2026
14	Alpaca Communications	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	14 contacts →
	Indirect evidence “Founded in 2016, Alpaca Communications is a strategic environmental communications and social impact advisory firm.” Source: RevenueBase Database · checked Sep 12, 2026
15	Seahorse Communications	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	14 contacts →
	Indirect evidence “Strategic communications for organisations driving the energy transition and restoring the natural world.” Source: RevenueBase Database · checked Sep 12, 2026
16	Aval Consulting Group	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	13 contacts →
	Indirect evidence “Key Services: Ecology, Air Quality, Flood Risk and Drainage, Transport Planning and Highways, Contaminated Land, Odour, Waste Management, Dust, Lighting Strategy, Daylight and…” Source: RevenueBase Database · checked Sep 12, 2026
17	JAW Sustainability	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	12 contacts →
	Indirect evidence “JAW are a dynamic sustainability consultancy.” Source: RevenueBase Database · checked Sep 12, 2026
18	Global Environmental	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	11 contacts →
	Indirect evidence “Global Environmental is an environmental consultancy practice which offers reliable and responsive planning, project management, surveys, analysis and tailored training packages.” Source: RevenueBase Database · checked Sep 12, 2026
19	Kantor Energy Limited	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	1,001-5,000	11 contacts →
	Indirect evidence “Kantor Energy offers sustainable engineering services to clients across all sectors.” Source: RevenueBase Database · checked Sep 12, 2026
20	ACP Environmental Consultants	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	10 contacts →
	Indirect evidence “ACP Environmental Consultants provides a wide range of expert environmental services across Greater London, surrounding counties, and up to the Midlands.” Source: RevenueBase Database · checked Sep 12, 2026
21	LRS Consultancy	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	9 contacts →
	Indirect evidence “LRS Consultancy is a specialist environmental consultancy that works with businesses and organisations to provide them with a competitive advantage through improving their…” Source: RevenueBase Database · checked Sep 12, 2026
22	Ergo Strategy Group	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	8 contacts →
	Partial evidence “Ergo Strategy Group is a global consulting firm that designs and delivers solutions at the intersection of natural resources and economic development.” Source: RevenueBase Database · checked Sep 12, 2026
23	STM Environmental	Partial evidence	London, United KingdomHQ checked Sep 12, 2026	1-10	7 contacts →
	Partial evidence “STM Environmental Consultants Ltd is an independent company offering focused environmental consulting, services to the public and private sector.” Source: RevenueBase Database · checked Sep 12, 2026
24	Embark Consulting Limited	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	11-50	7 contacts →
	Indirect evidence “When it comes to Health, Safety and the Environment, we make it our business to provide you with the support, advice and guidance that keeps your employees safe and protects the…” Source: RevenueBase Database · checked Sep 12, 2026
25	Iken Associates	Indirect evidence	London, United KingdomHQ checked Sep 12, 2026	1-10	7 contacts →
	Indirect evidence “Since 2001 we've been delivering better climate, health, nature and sustainability outcomes for the public, private and not-for-profit sectors.” Source: RevenueBase Database · checked Sep 12, 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: ecological consulting firms. 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 ecological consulting firms.
Partial evidence: Its own public description names part of ecological consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name ecological consulting firms. 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 93 ecological consulting firms based in London, United Kingdom

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Ecological consulting firms based in London, United Kingdom at a glance

As of Sep 12, 2026

52.6%Verified-email coverage

7.5%Mobile-number coverage

27.2Average contacts per company

1-10Median size (employees)

102.2%Largest-city concentration · London

Sep 12, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 14.0d

1,1150–30

19431–60

1161–90

090–180

12180+

Company record updated

Median 64.0d

00–30

96931–60

1,07361–90

29790–180

193180+

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 ecological consulting firms, 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 London, United Kingdom whose own description of what they do matches “ecological consulting firms”. 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 ecological consulting firms), 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 ecological consulting firms, and records with no verified work email. Companies headquartered outside London 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, 1,332 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 12, 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.

Ecological consulting firms by metro in the United Kingdom

Ecological consulting firms in London95

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 ecological consulting firms, 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 ecological consulting firms are there based in London, United Kingdom?

RevenueBase identified 93 ecological consulting firms headquartered in London, 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?

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

Which city has the most ecological consulting firms?

London leads with 95 headquartered companies, followed by Bristol (20) and Manchester (19).

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 1,332 verified decision-maker contacts tracked across these 93 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 12, 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.