Company lists · Data refreshed September 2026

Top 25 Ehs consultancies based in the United Kingdom

Name: Ehs consultancies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 6,142 companies tracked

RevenueBase identified 6,142 ehs consultancies headquartered in the United Kingdom as of September 2026 and tracks 53,724 professional contacts across them, including 22,080 with verified work emails and 3,174 with mobile numbers. London is the largest hub.

This list covers ehs consultancies 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 24, 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 24, 2026 86% judged on-target in blind review

6,142Companies

53,724Contacts tracked

22,080Verified emails

3,174Mobile numbers

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The 25 largest ehs consultancies based in the United Kingdom

Ranked by team size

Top 25 of 6,142 ehs consultancies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to ehs consultancies: 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	Indirect evidence	Helsby, United KingdomHQ checked Sep 24, 2026	10001+	1,255 contacts →
	Indirect evidence “RSK Group is a global leader in the delivery of environmental and engineering solutions.” Source: RevenueBase Database · checked Sep 24, 2026
2	Hoare LEA	Indirect evidence	London, United KingdomHQ checked Sep 24, 2026	501-1,000	1,103 contacts →
	Indirect evidence “We are an award-winning engineering consultancy with a creative team of engineers, designers, and technical specialists.” Source: RevenueBase Database · checked Sep 24, 2026
3	Peninsula UK	Indirect evidence	Manchester, United KingdomHQ checked Sep 24, 2026	1,001-5,000	1,075 contacts →
	Indirect evidence “Peninsula is the worldwide leader and most trusted provider of employment law, HR and health & safety services, supporting over small businesses in the U.K.” Source: RevenueBase Database · checked Sep 24, 2026
4	Black & White Engineering	Indirect evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 24, 2026	1,001-5,000	888 contacts →
	Indirect evidence “Black & White Engineering is a global, award-winning critical buildings and infrastructure engineering consultancy.” Source: RevenueBase Database · checked Sep 24, 2026
5	Ricardo PLC	Indirect evidence	London, United KingdomHQ checked Sep 24, 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 24, 2026
6	KBR Granherne	Partial evidence	Leatherhead, United KingdomHQ checked Sep 24, 2026	501-1,000	648 contacts →
	Partial evidence “KBR Consulting is one of the world's foremost engineering consultancies specializing in the hydrocarbon and energy industry.” Source: RevenueBase Database · checked Sep 24, 2026
7	Ecoonline	Partial evidence	London, United KingdomHQ checked Sep 24, 2026	501-1,000	620 contacts →
	Partial evidence “EcoOnline delivers uncomplicated environment, health and safety (EHS), chemical management and ESG/sustainability technology solutions to forward-thinking leaders.” Source: RevenueBase Database · checked Sep 24, 2026
8	Citation Professional Solutions	Indirect evidence	Wilmslow, United KingdomHQ checked Sep 24, 2026	201-500	514 contacts →
	Indirect evidence “Citation empowers over growing businesses to be ready for anything by turning the complicated parts of running a business into clarity.” Source: RevenueBase Database · checked Sep 24, 2026
9	NRL	Indirect evidence	Wigan, United KingdomHQ checked Sep 24, 2026	51-200	471 contacts →
	Indirect evidence “At NRL, our people play an integral role on major projects across a range of critical sectors including renewable energy, power generation and infrastructure.” Source: RevenueBase Database · checked Sep 24, 2026
10	Fairhurst	Indirect evidence	Glasgow, United KingdomHQ checked Sep 24, 2026	201-500	437 contacts →
	Indirect evidence “Welcome to Fairhurst: Fairhurst is a Limited Liability Partnership (LLP) of Consulting Engineers practicing in the UK, employing circa 400 staff in 16 principal offices.” Source: RevenueBase Database · checked Sep 24, 2026
11	Fichtner Consulting Engineers LTD	Indirect evidence	Stockport, United KingdomHQ checked Sep 24, 2026	51-200	418 contacts →
	Indirect evidence “Fichtner is one of the world's leading independent engineering consultancy firms.” Source: RevenueBase Database · checked Sep 24, 2026
12	MES	Indirect evidence	Leatherhead, United KingdomHQ checked Sep 24, 2026	201-500	403 contacts →
	Indirect evidence “Monaco Engineering Solutions (MES) is a specialised technical consultancy with a focus in the Oil & Gas, Petrochemical and Refining, Renewable & Clean Energy, Chemical…” Source: RevenueBase Database · checked Sep 24, 2026
13	Risktec Solutions	Indirect evidence	Warrington, United KingdomHQ checked Sep 24, 2026	201-500	353 contacts →
	Indirect evidence “Risktec Solutions is an established, independent and specialist risk management consulting and training company, owned by the TUV Rheinland Group.” Source: RevenueBase Database · checked Sep 24, 2026
14	Atelier TEN	Indirect evidence	London, United KingdomHQ checked Sep 24, 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 24, 2026
15	Abbott Risk Consulting	Indirect evidence	Edinburgh, United KingdomHQ checked Sep 24, 2026	51-200	268 contacts →
	Indirect evidence “Abbott Risk Consulting (ARC) is a dynamic safety engineering consultancy with a world-wide reputation for delivering quality solutions to the nuclear, defence, oil and gas…” Source: RevenueBase Database · checked Sep 24, 2026
16	HSL Compliance	Indirect evidence	Ross On Wye, United KingdomHQ checked Sep 24, 2026	501-1,000	236 contacts →
	Indirect evidence “HSL Compliance are one of the leading companies in the legal compliance market and we are able to offer many specialist services.” Source: RevenueBase Database · checked Sep 24, 2026
17	WRC Group	Indirect evidence	Swindon, United KingdomHQ checked Sep 24, 2026	201-500	226 contacts →
	Indirect evidence “Water Research Centre (WRc) is a trusted provider of consultancy, technical services, accreditation schemes, research, innovation and training to customers around the globe.” Source: RevenueBase Database · checked Sep 24, 2026
18	Arbtech	Indirect evidence	Chester, United KingdomHQ checked Sep 24, 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 24, 2026
19	The Erith Group	Indirect evidence	London, United KingdomHQ checked Sep 24, 2026	501-1,000	217 contacts →
	Indirect 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 24, 2026
20	Frankham Group	Indirect evidence	Sidcup, United KingdomHQ checked Sep 24, 2026	51-200	192 contacts →
	Indirect evidence “The Frankham Group provides a full range of consultany services to the built environment, including design, engineering and compliance.” Source: RevenueBase Database · checked Sep 24, 2026
21	Shirley Parsons	Indirect evidence	Aylesbury, United KingdomHQ checked Sep 24, 2026	51-200	185 contacts →
	Indirect evidence “Shirley Parsons is a global professional services firm with expertise in Health & Safety, Quality, Sustainability and Business Improvement.” Source: RevenueBase Database · checked Sep 24, 2026
22	JURU	Indirect evidence	London, United KingdomHQ checked Sep 24, 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 24, 2026
23	Clancy Consulting	Indirect evidence	Manchester, United KingdomHQ checked Sep 24, 2026	51-200	168 contacts →
	Indirect evidence “We’re a specialist engineering consultancy working nationally to deliver industry-leading engineering services and creative engineering designs that work for today and for future…” Source: RevenueBase Database · checked Sep 24, 2026
24	Rock Compliance	Indirect evidence	Alcester, United KingdomHQ checked Sep 24, 2026	501-1,000	165 contacts →
	Indirect evidence “Rock Compliance is a progressive company in the Water, Air and Asbestos compliance markets.” Source: RevenueBase Database · checked Sep 24, 2026
25	Tersus Marlowe Environmental Services	Indirect evidence	Rainham, United KingdomHQ checked Sep 24, 2026	201-500	165 contacts →
	Indirect evidence “With extensive experience and a proven track record across a broad range of sectors from housing to nuclear, you can trust our team of 360+ specialists to deliver your asbestos…” Source: RevenueBase Database · checked Sep 24, 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: ehs consultancies. 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 ehs consultancies.
Partial evidence: Its own public description names part of ehs consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name ehs consultancies. 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 6,142 ehs consultancies based in the United Kingdom

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Ehs consultancies based in the United Kingdom at a glance

As of Sep 24, 2026

41.1%Verified-email coverage

5.9%Mobile-number coverage

8.7Average contacts per company

1-10Median size (employees)

13.7%Largest-city concentration · London

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

4,393

11-50

1,313

51-200

312

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

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

Email last verified

Median 26.0d

16,6920–30

5,03831–60

28961–90

790–180

54180+

Company record updated

Median 87.0d

00–30

4,19331–60

27,84361–90

18,41290–180

3,276180+

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 ehs consultancies, 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 “ehs consultancies”. 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 ehs consultancies), 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 ehs consultancies, 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, 22,080 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 24, 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.

Ehs consultancies by metro

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 ehs consultancies, 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 ehs consultancies are there based in the United Kingdom?

RevenueBase identified 6,142 ehs consultancies 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 ehs consultancies?

London leads with 841 headquartered companies, followed by Manchester (112) and Glasgow (85).

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 22,080 verified decision-maker contacts tracked across these 6,142 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 24, 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.