Company lists · Data refreshed September 2026

Top 25 Iot environmental monitoring systems based in the United Kingdom

Name: Iot environmental monitoring systems based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 112 companies tracked

RevenueBase identified 112 iot environmental monitoring systems headquartered in the United Kingdom as of September 2026 and tracks 884 professional contacts across them, including 380 with verified work emails. London is the largest hub.

This list covers iot environmental monitoring systems 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 20, 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 20, 2026 86% judged on-target in blind review

112Companies

884Contacts tracked

380Verified emails

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The 25 largest iot environmental monitoring systems based in the United Kingdom

Ranked by team size

Top 25 of 112 iot environmental monitoring systems based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to iot environmental monitoring systems: 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	Vianet Group PLC	Strong evidence	Stockton-on-tees, United KingdomHQ checked Sep 20, 2026	51-200	118 contacts →
	Strong evidence “Vianet Group PLC (AIM:VNET), provides real time monitoring systems and data management services.” Source: RevenueBase Database · checked Sep 20, 2026
2	Pharmagraph	Strong evidence	Finchampstead, United KingdomHQ checked Sep 20, 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 20, 2026
3	IMS Evolve	Partial evidence	Milton Keynes, United KingdomHQ checked Sep 20, 2026	51-200	54 contacts →
	Partial evidence “IMS Evolve is an Internet of Things (IoT) company reducing waste, maintenance costs and energy consumption for its customers with an innovative machine learning platform.” Source: RevenueBase Database · checked Sep 20, 2026
4	Invisible Systems	Strong evidence	Manchester, United KingdomHQ checked Sep 20, 2026	11-50	48 contacts →
	Strong 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 20, 2026
5	Vortex	Indirect evidence	Neath, United KingdomHQ checked Sep 20, 2026	11-50	38 contacts →
	Indirect evidence “Vortex is a dynamic and market-leading company at the forefront of smart city technologies.” Source: RevenueBase Database · checked Sep 20, 2026
6	AIRLY	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	33 contacts →
	Indirect evidence “We are Airly.” Source: RevenueBase Database · checked Sep 20, 2026
7	Chelsea Technologies LTD	Partial evidence	Yateley, United KingdomHQ checked Sep 20, 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 20, 2026
8	Meteor Communications Europe LTD	Strong evidence	St Albans, United KingdomHQ checked Sep 20, 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 20, 2026
9	A1-Cbiss	Indirect evidence	Birkenhead, United KingdomHQ checked Sep 20, 2026	51-200	24 contacts →
	Indirect evidence “In July 2023, A1-CBISS Limited merged with ENVEA UK Limited.” Source: RevenueBase Database · checked Sep 20, 2026
10	Instrumentel	Partial evidence	Leeds, United KingdomHQ checked Sep 20, 2026	11-50	17 contacts →
	Partial evidence “Instrumentel specialises in the measurement of operating data such as movement, temperature and pH from difficult to access and harsh environments.” Source: RevenueBase Database · checked Sep 20, 2026
11	Insight Terra	Strong evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	15 contacts →
	Strong evidence “Insight Terra was established to address a rapid and widespread need for more effective monitoring of both the built and natural environments, in situations where one presents a…” Source: RevenueBase Database · checked Sep 20, 2026
12	FMS Facility Monitoring Systems LTD	Strong evidence	Great Malvern, United KingdomHQ checked Sep 20, 2026	11-50	13 contacts →
	Strong 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 20, 2026
13	Intellitect Water Limited	Indirect evidence	Romsey, United KingdomHQ checked Sep 20, 2026	11-50	12 contacts →
	Indirect evidence “Safe, reliable water depends on what happens inside the pipe, and that’s where Intellitect makes the difference.” Source: RevenueBase Database · checked Sep 20, 2026
14	T-Scan LTD	Strong evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	12 contacts →
	Strong evidence “T-Scan Solutions is a cutting-edge technology company specializing in advanced Environmental Monitoring Solutions for industrial and commercial applications, compliant with ISO…” Source: RevenueBase Database · checked Sep 20, 2026
15	Castle Group LTD	Strong evidence	Scarborough, United KingdomHQ checked Sep 20, 2026	11-50	12 contacts →
	Strong evidence “Castle Group provide environmental measuring and monitoring products and services including noise, vibration, air quality, gas detection and many other parameters such as…” Source: RevenueBase Database · checked Sep 20, 2026
16	Aquawatch	Indirect evidence	Queenstown, United KingdomHQ checked Sep 20, 2026	11-50	11 contacts →
	Indirect evidence “Our mission: reduce water risk for industry while restoring freshwater to health.” Source: RevenueBase Database · checked Sep 20, 2026
17	Hastel Limited	Partial evidence	Hastings, United KingdomHQ checked Sep 20, 2026	1-10	9 contacts →
	Partial evidence “Founded in 2010 in the coastal town of Hastings, East Sussex, Hastel is a leading provider of innovative IoT remote fluid management equipment.” Source: RevenueBase Database · checked Sep 20, 2026
18	Hubit Technology LTD	Strong evidence	Hove, United KingdomHQ checked Sep 20, 2026	1-10	9 contacts →
	Strong evidence “Hubit designs and delivers end-to-end IoT and smart infrastructure solutions that turn physical environments into intelligent, data-driven systems.” Source: RevenueBase Database · checked Sep 20, 2026
19	Radio Data Networks	Strong evidence	Bishop's Stortford, United KingdomHQ checked Sep 20, 2026	11-50	8 contacts →
	Strong evidence “Radio Data Networks delivers smart environmental monitoring solutions that help organisations manage water, reduce risk, and build resilience to climate change.” Source: RevenueBase Database · checked Sep 20, 2026
20	Koolzone LTD	Strong evidence	Henley-on-thames, United KingdomHQ checked Sep 20, 2026	11-50	8 contacts →
	Strong evidence “KoolZone is a global leader in temperature and environmental monitoring, providing cutting-edge Industrial Internet of Things (IoT) solutions for businesses worldwide.” Source: RevenueBase Database · checked Sep 20, 2026
21	Dexdyne Limited	Strong evidence	Cirencester, United KingdomHQ checked Sep 20, 2026	1-10	8 contacts →
	Strong evidence “Dexdyne has been working in the technology sector for over 25 years and has become a leader in IoT and cloud technology, telemetry and remote data monitoring providing systems to…” Source: RevenueBase Database · checked Sep 20, 2026
22	Stork Solutions LTD	Indirect evidence	Aldermaston, United KingdomHQ checked Sep 20, 2026	1-10	8 contacts →
	Indirect evidence “Stork Solutions was created to supply end-to-end Instrumentation solutions and work with customers and partners to supply an ultimate solution to an instrumentation problem or…” Source: RevenueBase Database · checked Sep 20, 2026
23	Urban 360	Indirect evidence	Manchester, United KingdomHQ checked Sep 20, 2026	1-10	8 contacts →
	Indirect evidence “Urban 360 \| Helping cities flourish while making the planet healthier.” Source: RevenueBase Database · checked Sep 20, 2026
24	Salamander Group	Partial evidence	Ulverston, United KingdomHQ checked Sep 20, 2026	1-10	8 contacts →
	Partial evidence “We're a leading developer of continuous water and gas monitoring technology.” Source: RevenueBase Database · checked Sep 20, 2026
25	Seneye Sensors	Partial evidence	Norwich, United KingdomHQ checked Sep 20, 2026	11-50	8 contacts →
	Partial evidence “It's been our mission here at seneye to protect the world's aquatic life for over a decade; we have animal welfare at our core and environmental protection is fundamental to this.” Source: RevenueBase Database · checked Sep 20, 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: iot environmental monitoring systems. 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 iot environmental monitoring systems.
Partial evidence: Its own public description names part of iot environmental monitoring systems, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name iot environmental monitoring systems. 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 112 iot environmental monitoring systems based in the United Kingdom

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Iot environmental monitoring systems based in the United Kingdom at a glance

As of Sep 20, 2026

43.0%Verified-email coverage

7.9Average contacts per company

1-10Median size (employees)

20.5%Largest-city concentration · London

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 112 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 iot environmental monitoring systems, 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 “iot environmental monitoring systems”. 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 iot environmental monitoring systems), 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 iot environmental monitoring systems, 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, 380 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 20, 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 iot environmental monitoring systems, 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 iot environmental monitoring systems are there based in the United Kingdom?

RevenueBase identified 112 iot environmental monitoring systems 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?

Vianet Group PLC, headquartered in Stockton-On-Tees, tops this list with the largest team on record.

Which city has the most iot environmental monitoring systems?

London leads with 23 headquartered companies, followed by Cambridge (4) and Glasgow (4).

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 380 verified decision-maker contacts tracked across these 112 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 20, 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.