Company lists · Data refreshed September 2026

Top 25 Environmental management consultants based in London, United Kingdom

Name: Environmental management consultants based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 349 companies tracked

RevenueBase identified 349 environmental management consultants headquartered in London, United Kingdom as of September 2026 and tracks 18,806 professional contacts across them, including 10,211 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers environmental management consultants 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 28, 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 28, 2026 86% judged on-target in blind review

349Companies

18,806Contacts tracked

10,211Verified emails

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The 25 largest environmental management consultants based in London, United Kingdom

Ranked by team size

Top 25 of 349 environmental management consultants based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to environmental management consultants: 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	ERM	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	5,001-10,000	9,119 contacts →
	Indirect evidence “Sustainability is our business.” Source: RevenueBase Database · checked Sep 28, 2026
2	SLR Consulting	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	3,848 contacts →
	Indirect evidence “SLR is a committed partner in our clients’ sustainability journeys.” Source: RevenueBase Database · checked Sep 28, 2026
3	Hoare LEA	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	501-1,000	1,103 contacts →
	Partial evidence “We are an award-winning engineering consultancy with a creative team of engineers, designers, and technical specialists.” Source: RevenueBase Database · checked Sep 28, 2026
4	Ricardo PLC	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
5	LUC	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	383 contacts →
	Strong evidence “LUC is an independent, employee-owned environmental consultancy celebrating its 60th anniversary.” Source: RevenueBase Database · checked Sep 28, 2026
6	Atelier TEN	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	323 contacts →
	Strong 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 28, 2026
7	The Erith Group	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
8	JURU	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	176 contacts →
	Strong 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 28, 2026
9	ZTP	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	115 contacts →
	Indirect evidence “At ZTP, we’re committed to accelerating the transition to a more sustainable future by reducing the negative impact of human activity on our planet - ecologically, financially…” Source: RevenueBase Database · checked Sep 28, 2026
10	Longevity Partners	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	115 contacts →
	Partial evidence “Longevity Partners is a multidisciplinary energy and sustainability consultancy.” Source: RevenueBase Database · checked Sep 28, 2026
11	Mrag LTD	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	103 contacts →
	Strong 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 28, 2026
12	ERM CVS	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	100 contacts →
	Indirect evidence “ERM CVS provides science-based, independent assurance, verification certification and training services for the world’s leading organizations.” Source: RevenueBase Database · checked Sep 28, 2026
13	Greengage Environmental LTD	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	93 contacts →
	Strong 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 28, 2026
14	Sustainable Advantage	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	89 contacts →
	Indirect evidence “Sustainable Advantage partners with Private Equity funds and businesses across the UK, France, and wider Europe.” Source: RevenueBase Database · checked Sep 28, 2026
15	Alfa Energy An Edison Energy Company	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	88 contacts →
	Partial evidence “Alfa Energy Group (an Edison Energy company) is an international energy, sustainability and technology consultant partner with 200 employees over four international locations.” Source: RevenueBase Database · checked Sep 28, 2026
16	FHP Group	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	86 contacts →
	Partial evidence “FHP Group is a leading Mechanical, Electrical, Public Health, Energy and Sustainability engineering consultancy with over 50 years of experience!” Source: RevenueBase Database · checked Sep 28, 2026
17	Xco2	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	84 contacts →
	Strong 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 28, 2026
18	Hudson Sandler	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	67 contacts →
	Partial evidence “We are an independent strategic communications and ESG consultancy headquartered in London.” Source: RevenueBase Database · checked Sep 28, 2026
19	Berkeley Engineering Consultants	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	501-1,000	64 contacts →
	Strong evidence “Berkeley Engineering is an engineering and management consultancy with a head office in Mayfair, London.” Source: RevenueBase Database · checked Sep 28, 2026
20	Action Sustainability	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	62 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
21	Scotch Partners	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	61 contacts →
	Indirect evidence “We are Scotch Partners \| MEP, Sustainability, and Acoustics Consulting Engineers.” Source: RevenueBase Database · checked Sep 28, 2026
22	Foreman Roberts	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	61 contacts →
	Partial evidence “Foreman Roberts are International Building Services, Energy and Sustainability Consultants who have a reputation for delivering a high quality service on projects both in the UK…” Source: RevenueBase Database · checked Sep 28, 2026
23	Circle Development	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	45 contacts →
	Indirect evidence “Circle are Carbon, Project, Cost and Quality experts.” Source: RevenueBase Database · checked Sep 28, 2026
24	Drees & Sommer UK	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	43 contacts →
	Partial evidence “Drees & Sommer: Your Innovative Partner for Consulting, Planning, Construction and Operation Leading European consulting, planning and project management enterprise, Drees &…” Source: RevenueBase Database · checked Sep 28, 2026
25	Logika Group	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	43 contacts →
	Strong evidence “Logika Group provides clients with a broad range of high quality environmental and design consultancy services.” Source: RevenueBase Database · checked Sep 28, 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 management consultants. 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 management consultants.
Partial evidence: Its own public description names part of environmental management consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental management consultants. 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 349 environmental management consultants based in London, United Kingdom

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Environmental management consultants based in London, United Kingdom at a glance

As of Sep 28, 2026

54.3%Verified-email coverage

53.9Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

224

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 349 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 management consultants, 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 “environmental management consultants”. 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 management consultants), 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 management consultants, 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, 10,211 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 28, 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 management consultants by metro in the United Kingdom

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 management consultants, 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 management consultants are there based in London, United Kingdom?

RevenueBase identified 349 environmental management consultants 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?

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

Which city in the United Kingdom has the most environmental management consultants?

London leads the United Kingdom with 349 headquartered companies, followed by Manchester (41) and Bristol (31).

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 10,211 verified decision-maker contacts tracked across these 349 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 28, 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.