Company lists · Data refreshed September 2026

Top 25 Industrial hygiene companies based in the United Kingdom

Name: Industrial hygiene companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 542 companies tracked

RevenueBase identified 542 industrial hygiene companies headquartered in the United Kingdom as of September 2026 and tracks 6,459 professional contacts across them, including 2,642 with verified work emails. London is the largest hub.

This list covers industrial hygiene companies 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 17, 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 17, 2026 86% judged on-target in blind review

542Companies

6,459Contacts tracked

2,642Verified emails

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The 25 largest industrial hygiene companies based in the United Kingdom

Ranked by team size

Top 25 of 542 industrial hygiene companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to industrial hygiene companies: 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	HSL Compliance	Indirect evidence	Ross On Wye, United KingdomHQ checked Sep 17, 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 17, 2026
2	Rock Compliance	Indirect evidence	Alcester, United KingdomHQ checked Sep 17, 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 17, 2026
3	Lucion	Indirect evidence	Gateshead, United KingdomHQ checked Sep 17, 2026	501-1,000	162 contacts →
	Indirect evidence “We're not just service providers; we're your long-term partners in creating a sustainable, compliant, and efficient future for your assets.” Source: RevenueBase Database · checked Sep 17, 2026
4	Tetra Consulting	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	51-200	153 contacts →
	Indirect evidence “At Tetra, we make buildings safer for people.” Source: RevenueBase Database · checked Sep 17, 2026
5	RVT Group	Indirect evidence	Kent, United KingdomHQ checked Sep 17, 2026	51-200	128 contacts →
	Indirect evidence “RVT Group are not your average hire company, we work with you to understand the full scope of your activities on site before recommending a fully compliant health hazard control…” Source: RevenueBase Database · checked Sep 17, 2026
6	Institute Of Occupational Medicine IOM	Partial evidence	Edinburgh, United KingdomHQ checked Sep 17, 2026	51-200	116 contacts →
	Partial 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 17, 2026
7	Environmental Essentials	Indirect evidence	Newcastle-Under-Lyme, United KingdomHQ checked Sep 17, 2026	201-500	116 contacts →
	Indirect evidence “Whether you need end-to-end asbestos consultancy and management or are simply looking for accredited compliance training, you’ve come to the right place.” Source: RevenueBase Database · checked Sep 17, 2026
8	Bradley Environmental Consultants Limited	Indirect evidence	Halesowen, United KingdomHQ checked Sep 17, 2026	51-200	113 contacts →
	Indirect evidence “Bradley Environmental, Powered by Vadella, is one of the UK's leading asbestos, environmental and health and safety consultancies.” Source: RevenueBase Database · checked Sep 17, 2026
9	Yordas Group	Indirect evidence	Lancaster, United KingdomHQ checked Sep 17, 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 17, 2026
10	Life Environmental Services	Indirect evidence	Bishops Stortford, United KingdomHQ checked Sep 17, 2026	51-200	107 contacts →
	Indirect evidence “Life Environmental Services \| Asbestos, Water, Fire & Mould Management Consultancy.” Source: RevenueBase Database · checked Sep 17, 2026
11	Acorn Analytical Services	Indirect evidence	Northampton, United KingdomHQ checked Sep 17, 2026	51-200	105 contacts →
	Indirect evidence “Acorn Analytical Services are a multi disciplined environmental consultancy, specifically set up to meet all of your asbestos management and statutory compliance needs.” Source: RevenueBase Database · checked Sep 17, 2026
12	AEC	Partial evidence	Manchester, United KingdomHQ checked Sep 17, 2026	51-200	99 contacts →
	Partial evidence “AEC is an employee-owned compliance consultancy and training organisation for the safe management of asbestos, water, fire and occupational hygiene in the built environment.” Source: RevenueBase Database · checked Sep 17, 2026
13	HBE	Indirect evidence	Newry, United KingdomHQ checked Sep 17, 2026	51-200	87 contacts →
	Indirect evidence “HBE is a well respected provider of compliance services on local basis, assisting building & facilities managers in providing a safe and healthy built environment for employees…” Source: RevenueBase Database · checked Sep 17, 2026
14	Swiftclean	Partial evidence	Southend-on-sea, United KingdomHQ checked Sep 17, 2026	51-200	86 contacts →
	Partial evidence “Providing Air and Water Hygiene and Kitchen Extract Fire Safety services to clients nationwide.” Source: RevenueBase Database · checked Sep 17, 2026
15	Eeuk Group	Indirect evidence	Stoke-on-trent, United KingdomHQ checked Sep 17, 2026	51-200	85 contacts →
	Indirect evidence “EEUK Group cover a diverse and specialist range of statutory obligations focusing on employee health, safety and wellbeing in the workplace.” Source: RevenueBase Database · checked Sep 17, 2026
16	Assurity Consulting LTD	Indirect evidence	Horsham, United KingdomHQ checked Sep 17, 2026	51-200	77 contacts →
	Indirect evidence “Founded in 1986, Assurity Consulting is an independent workplace compliance consultancy specialising in health, safety and environmental solutions, partnering with responsible…” Source: RevenueBase Database · checked Sep 17, 2026
17	SMH Products LTD	Partial evidence	South Shields, United KingdomHQ checked Sep 17, 2026	51-200	75 contacts →
	Partial evidence “For over 30 years, SMH has been a leading provider of specialist equipment and services to all industries and sectors where workers are at risk of contamination.” Source: RevenueBase Database · checked Sep 17, 2026
18	WCS Group	Partial evidence	Gloucester, United KingdomHQ checked Sep 17, 2026	1,001-5,000	72 contacts →
	Partial evidence “WCS Group is the leading water treatment, water hygiene, air hygiene and Asbestos specialist with 1700+ staff nationally.” Source: RevenueBase Database · checked Sep 17, 2026
19	EDP	Indirect evidence	St Helens, United KingdomHQ checked Sep 17, 2026	51-200	71 contacts →
	Indirect evidence “EDP combines leading expertise and experience to deliver Health and Safety, Asbestos Services, Property Compliance, Environment, Sustainability and Security services to businesses…” Source: RevenueBase Database · checked Sep 17, 2026
20	Kays Medical LTD	Indirect evidence	Liverpool, United KingdomHQ checked Sep 17, 2026	51-200	70 contacts →
	Indirect evidence “For 50 years we've been dedicated to protecting and improving the health of people at work.” Source: RevenueBase Database · checked Sep 17, 2026
21	OHS Group	Indirect evidence	Manchester, United KingdomHQ checked Sep 17, 2026	51-200	70 contacts →
	Indirect evidence “OHS is a market-leading integrated safety solutions consultancy.” Source: RevenueBase Database · checked Sep 17, 2026
22	Riverside Environmental Services LTD	Indirect evidence	Hextable, United KingdomHQ checked Sep 17, 2026	51-200	65 contacts →
	Indirect evidence “Nationwide independent workplace risk monitoring and management.” Source: RevenueBase Database · checked Sep 17, 2026
23	The Building Safety Group	Indirect evidence	Bristol, United KingdomHQ checked Sep 17, 2026	11-50	65 contacts →
	Indirect evidence “The Building Safety Group (BSG) provides professional HS & E site inspections, training and advice for the construction industry.” Source: RevenueBase Database · checked Sep 17, 2026
24	Sayvol Environmental And Building Services Limited	Partial evidence	Kettering, United KingdomHQ checked Sep 17, 2026	51-200	57 contacts →
	Partial evidence “Independent Water Treatment & Water/Air Hygiene company with National coverage.” Source: RevenueBase Database · checked Sep 17, 2026
25	Franks Portlock Consulting Limited	Partial evidence	Sunderland, United KingdomHQ checked Sep 17, 2026	51-200	54 contacts →
	Partial evidence “Franks Portlock offers a comprehensive range of asbestos and water hygiene services.” Source: RevenueBase Database · checked Sep 17, 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: industrial hygiene companies. 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 industrial hygiene companies.
Partial evidence: Its own public description names part of industrial hygiene companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial hygiene companies. 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 542 industrial hygiene companies based in the United Kingdom

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Industrial hygiene companies based in the United Kingdom at a glance

As of Sep 17, 2026

40.9%Verified-email coverage

11.9Average contacts per company

1-10Median size (employees)

5.9%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

341

11-50

122

51-200

201-500

501-1,000

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 542 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 industrial hygiene companies, 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 “industrial hygiene companies”. 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 industrial hygiene companies), 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 industrial hygiene companies, 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, 2,642 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 17, 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.

Industrial hygiene companies by metro

Industrial hygiene companies in London32

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 industrial hygiene companies, 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 industrial hygiene companies are there based in the United Kingdom?

RevenueBase identified 542 industrial hygiene companies 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?

HSL Compliance, headquartered in Ross On Wye, tops this list with the largest team on record.

Which city has the most industrial hygiene companies?

London leads with 32 headquartered companies, followed by Glasgow (8) and Manchester (8).

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 2,642 verified decision-maker contacts tracked across these 542 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 17, 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.