Company lists · Data refreshed September 2026

Top 25 Environmental monitoring sensors companies based in the United Kingdom

Name: Environmental monitoring sensors 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 19, 2026 204 companies tracked

RevenueBase identified 204 environmental monitoring sensors companies headquartered in the United Kingdom as of September 2026 and tracks 2,088 professional contacts across them, including 968 with verified work emails. London is the largest hub.

This list covers environmental monitoring sensors 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

204Companies

2,088Contacts tracked

968Verified emails

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The 25 largest environmental monitoring sensors companies based in the United Kingdom

Ranked by team size

Top 25 of 204 environmental monitoring sensors companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to environmental monitoring sensors 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	Servomex	Indirect evidence	Crowborough, United KingdomHQ checked Sep 19, 2026	201-500	284 contacts →
	Indirect evidence “The world expert in gas analysis, Servomex has established itself as the leading provider of reliable, accurate, and stable gas measurement solutions to industries across the…” Source: RevenueBase Database · checked Sep 19, 2026
2	Analox Group	Indirect evidence	Stokesley, United KingdomHQ checked Sep 19, 2026	51-200	93 contacts →
	Indirect evidence “Analox is a world leader in the research, development and manufacturing of gas sensing products.” Source: RevenueBase Database · checked Sep 19, 2026
3	Kane International Limited	Indirect evidence	Welwyn Garden City, United KingdomHQ checked Sep 19, 2026	51-200	74 contacts →
	Indirect evidence “Since 1963, Kane International Ltd has been in Welwyn Garden City, Hertfordshire, and has a long history and broad experience designing and manufacturing portable test equipment.” Source: RevenueBase Database · checked Sep 19, 2026
4	Pharmagraph	Strong evidence	Finchampstead, United KingdomHQ checked Sep 19, 2026	51-200	55 contacts →
	Strong evidence “At Pharmagraph we provide advanced environmental monitoring systems for pharmaceutical and life science manufacturers.” Source: RevenueBase Database · checked Sep 19, 2026
5	Cura Terrae	Indirect evidence	Sheffield, United KingdomHQ checked Sep 19, 2026	201-500	50 contacts →
	Indirect evidence “Our mission is to provide services and solutions to help take care of the Earth.” Source: RevenueBase Database · checked Sep 19, 2026
6	Invisible Systems	Partial evidence	Manchester, United KingdomHQ checked Sep 19, 2026	11-50	48 contacts →
	Partial evidence “At Invisible Systems, our purpose is to provide the insight needed to deliver a world where net zero is achieved, businesses operate efficiently, and healthy environments for…” Source: RevenueBase Database · checked Sep 19, 2026
7	Casella	Partial evidence	Kempston, United KingdomHQ checked Sep 19, 2026	51-200	47 contacts →
	Partial evidence “Casella are global leaders in noise, dust and vibration monitoring.” Source: RevenueBase Database · checked Sep 19, 2026
8	City Technology	Partial evidence	Portsmouth, United KingdomHQ checked Sep 19, 2026	201-500	38 contacts →
	Partial evidence “City Technology leads the global market in the design and manufacture of innovative and reliable gas sensors for use in personal and fixed life safety systems.” Source: RevenueBase Database · checked Sep 19, 2026
9	Process Instruments PI	Indirect evidence	Burnley, United KingdomHQ checked Sep 19, 2026	11-50	34 contacts →
	Indirect evidence “Process Instruments (UK) Ltd.(Pi) is a global supplier, providing water analyser instrument solutions since 1998.” Source: RevenueBase Database · checked Sep 19, 2026
10	AIRLY	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	33 contacts →
	Indirect evidence “We are Airly.” Source: RevenueBase Database · checked Sep 19, 2026
11	Dd-Scientific LTD	Partial evidence	Fareham, United KingdomHQ checked Sep 19, 2026	51-200	32 contacts →
	Partial evidence “At DDS, we manufacture electrochemical sensors to the highest standard.” Source: RevenueBase Database · checked Sep 19, 2026
12	Chelsea Technologies LTD	Partial evidence	Yateley, United KingdomHQ checked Sep 19, 2026	51-200	32 contacts →
	Partial evidence “We solve the environmental challenges of today and tomorrow, designing and manufacturing best-in-class sensing solutions to make oceans, rivers and lakes safer and cleaner.) Deep…” Source: RevenueBase Database · checked Sep 19, 2026
13	Delta-T Devices	Strong evidence	Cambridge, United KingdomHQ checked Sep 19, 2026	11-50	30 contacts →
	Strong evidence “Established in 1971, Cambridge based Delta-T Devices designs and manufactures research-grade measurement and monitoring instruments for environmental science.” Source: RevenueBase Database · checked Sep 19, 2026
14	RS Hydro	Partial evidence	Bromsgrove, United KingdomHQ checked Sep 19, 2026	11-50	30 contacts →
	Partial evidence “RS Hydro are a total solutions provider for the water & wastewater, environmental, food & beverage, mining & aggregates, petrochemical, power generation and research industries…” Source: RevenueBase Database · checked Sep 19, 2026
15	Earthsense	Indirect evidence	Leicester, United KingdomHQ checked Sep 19, 2026	11-50	27 contacts →
	Indirect evidence “EarthSense empowers businesses, governments, and communities to make cleaner air a reality.” Source: RevenueBase Database · checked Sep 19, 2026
16	SST Sensing LTD	Indirect evidence	Coatbridge, United KingdomHQ checked Sep 19, 2026	51-200	27 contacts →
	Indirect evidence “At SST Sensing Ltd, our experienced and professional employees design and manufacture a range of Fluid and Gas Sensing Solutions and have supplied these products to industry for…” Source: RevenueBase Database · checked Sep 19, 2026
17	Shawcity	Partial evidence	Watchfield, United KingdomHQ checked Sep 19, 2026	11-50	25 contacts →
	Partial evidence “Established in 1976, Shawcity are the UK’s leading specialists in the provision of monitoring instrumentation.” Source: RevenueBase Database · checked Sep 19, 2026
18	Meteor Communications Europe LTD	Strong evidence	St Albans, United KingdomHQ checked Sep 19, 2026	11-50	24 contacts →
	Strong evidence “Based in St Albans, Hertfordshire, Meteor Communications has been designing, building and installing environmental monitoring and control solutions for over 25 years.” Source: RevenueBase Database · checked Sep 19, 2026
19	A1-Cbiss	Indirect evidence	Birkenhead, United KingdomHQ checked Sep 19, 2026	51-200	24 contacts →
	Indirect evidence “In July 2023, A1-CBISS Limited merged with ENVEA UK Limited.” Source: RevenueBase Database · checked Sep 19, 2026
20	Frontline Safety UK LTD	Strong evidence	Glasgow, United KingdomHQ checked Sep 19, 2026	11-50	23 contacts →
	Strong evidence “Frontline Safety UK Ltd is a national provider of Gas and Environmental Monitoring instrumentation.” Source: RevenueBase Database · checked Sep 19, 2026
21	Hach-Lange	Indirect evidence	Manchester, United KingdomHQ checked Sep 19, 2026	11-50	23 contacts →
	Indirect evidence “Air and water quality instrumentation for the life sciences and electronics industries.” Source: RevenueBase Database · checked Sep 19, 2026
22	Processplus	Partial evidence	Dunfermline, United KingdomHQ checked Sep 19, 2026	11-50	22 contacts →
	Partial evidence “Processplus Ltd is a multi-disciplined process and environmental engineering supply and specialist contracting company who for over two decades have amassed an enviable reputation…” Source: RevenueBase Database · checked Sep 19, 2026
23	Protea LTD	Strong evidence	Middlewich, United KingdomHQ checked Sep 19, 2026	11-50	21 contacts →
	Strong evidence “Protea Ltd delivers customer focused solutions for process, emission and environmental monitoring applications.” Source: RevenueBase Database · checked Sep 19, 2026
24	Sensonics LTD	Partial evidence	Berkhamsted, United KingdomHQ checked Sep 19, 2026	11-50	20 contacts →
	Partial evidence “Continuous protection and monitoring is an essential requirement for critical rotating plant in many areas of industry.” Source: RevenueBase Database · checked Sep 19, 2026
25	Mirico	Strong evidence	Harwell, United KingdomHQ checked Sep 19, 2026	11-50	20 contacts →
	Strong evidence “Mirico protects people and the environment through continuous, wide area monitoring of hazardous and greenhouse gas (GHG) emissions across entire sites with just a single…” Source: RevenueBase Database · checked Sep 19, 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 monitoring sensors 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 environmental monitoring sensors companies.
Partial evidence: Its own public description names part of environmental monitoring sensors companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental monitoring sensors 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 204 environmental monitoring sensors companies based in the United Kingdom

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Environmental monitoring sensors companies based in the United Kingdom at a glance

As of Sep 19, 2026

46.4%Verified-email coverage

10.2Average contacts per company

1-10Median size (employees)

18.6%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

107

11-50

51-200

201-500

501-1,000

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 204 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 monitoring sensors 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 “environmental monitoring sensors 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 environmental monitoring sensors 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 environmental monitoring sensors 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, 968 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.

Environmental monitoring sensors companies by metro

Environmental monitoring sensors companies in London38

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 monitoring sensors 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 environmental monitoring sensors companies are there based in the United Kingdom?

RevenueBase identified 204 environmental monitoring sensors 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?

Servomex, headquartered in Crowborough, tops this list with the largest team on record.

Which city has the most environmental monitoring sensors companies?

London leads with 38 headquartered companies, followed by Cambridge (5) and Glasgow (5).

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 968 verified decision-maker contacts tracked across these 204 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.