Company lists · Data refreshed September 2026
Top 23 Cleanroom monitoring companies based in the United Kingdom
RevenueBase identified 64 cleanroom monitoring companies headquartered in the United Kingdom as of September 2026 and tracks 671 professional contacts across them, including 221 with verified work emails. Fleet is the largest hub.
This list covers cleanroom monitoring 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 19, 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.
The 23 largest cleanroom monitoring companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 59 contacts → | ||||
Indirect evidence “Envair Technology is the unified brand of Envair and Total Containment Solutions (TCS), a single source provider of next generation clean air and containment systems.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 55 contacts → | ||||
Partial evidence “At Pharmagraph we provide advanced environmental monitoring systems for pharmaceutical and life science manufacturers.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 38 contacts → | ||||
Partial evidence “With trusted solutions, proven expertise, and everything you need from one reliable source, we take the complexity out of cleanroom ownership.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 34 contacts → | ||||
Partial evidence “Laboratories, cleanrooms, pharmaceutical facilities, and research centres around the world trust us to deliver clean air and containment solutions that help you create safer, more…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 33 contacts → | ||||
Partial evidence “AnalytiChem UK (formerly Cherwell Laboratories) is a manufacturing and distribution company offering a fully integrated range of products for environmental monitoring and the…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 27 contacts → | ||||
Indirect evidence “HVDS is a trusted partner for over 100 leading food manufacturers in the UK and Ireland, specialising in air quality and clean air solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 15 contacts → | ||||
Partial evidence “Contamination Control is an important factor when working or producing in a controlled environment or cleanroom.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 14 contacts → | ||||
Partial evidence “Cleanroom Zone provides a service that specializes in the cleaning of cleanrooms and controlled environments.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 13 contacts → | ||||
Partial evidence “Enbloc Ltd is a design and build cleanroom and containment suite construction company operating in the Pharmaceutical, Biotech, Healthcare, electronics industries.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 13 contacts → | ||||
Partial evidence “Specialists in temperature and humidity- offering product solutions for monitoring, control and validation.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 13 contacts → | ||||
Partial evidence “As Channel Partners to industry-leading particle counter manufacturers and monitoring software platform developers, FMS (Facility Monitoring Systems Limited) has become the…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 11 contacts → | ||||
Partial evidence “With over 60 years experience Bassaire is the longest established cleanroom company in the UK.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 8 contacts → | ||||
Partial evidence “BAS Cleanroom Commissioning LTD are a ISO9001 compliant cleanroom / clean air device qualification company and can provide all your cleanroom / laboratory validation requirements.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 8 contacts → | ||||
Partial evidence “OptiCal Sciences specialises in the supply and after sales service of viable and non-viable air particle counters, environmental particle monitoring systems, liquid particle…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 7 contacts → | ||||
Partial evidence “Clean Room Construction (CRC) has been designing and building cleanrooms and controlled environments for the science and technology sector since 1967.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 7 contacts → | ||||
Partial evidence “Established since 1980, Astra Group is specialised in the design and manufacture of specialist products for cleanrooms, controlled environments and hazardous areas.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 6 contacts → | ||||
Partial evidence “ADMWISE Ltd is a leader in automated wireless monitoring solutions, helping businesses meet safety standards and regulatory compliance across sectors including pharma, healthcare…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 6 contacts → | ||||
Indirect evidence “IVIC LIMITED is an electrical/electronic manufacturing company based out of 4 Winchester Dr, Peterlee, United Kingdom.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 4 contacts → | ||||
Partial evidence “ISO Cleanroom was set up by the founder, Toni Horsfield to plug a gap in the market for accurate, simple and honest cleanroom support.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 4 contacts → | ||||
Indirect evidence “We are Reynolds Contamination Control Ltd We are named after, and inspired by, the pioneering work of the great 19th century engineer Osborne Reynolds, whose two principal papers…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 contacts → | ||||
Indirect evidence “Whether you are manufacturing sterile medical devices, packaging pharmaceuticals or assembling electronic products, Ops Qual offer a comprehensive validation service for…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2 contacts → | ||||
Partial evidence “Green Air Monitoring was established in We monitor and test the workplace environment, indoor air and water – the most fundamental aspects of your working environment.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
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: cleanroom monitoring 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 cleanroom monitoring companies.
- Partial evidence
- Its own public description names part of cleanroom monitoring companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name cleanroom monitoring 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 23 of 64 cleanroom monitoring companies based in the United Kingdom
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Cleanroom monitoring companies based in the United Kingdom at a glance
As of Sep 19, 2026Companies by employee count
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 64 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 cleanroom monitoring 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 “cleanroom monitoring 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 cleanroom monitoring 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 cleanroom monitoring 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, 221 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 19, 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.
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 cleanroom monitoring 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 cleanroom monitoring companies are there based in the United Kingdom?
RevenueBase identified 64 cleanroom monitoring 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?
Envair Technology, headquartered in Heywood Distribution Park Heywood, tops this list with the largest team on record.
Which city has the most cleanroom monitoring companies?
Fleet leads with 2 headquartered companies, followed by Glasgow (2) and London (2).
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 221 verified decision-maker contacts tracked across these 64 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 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 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.
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