Company lists · Data refreshed September 2026

Top 25 Environmental monitoring companies based in the United Kingdom

Name: Environmental monitoring 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 266 companies tracked

RevenueBase identified 266 environmental monitoring companies headquartered in the United Kingdom as of September 2026 and tracks 3,020 professional contacts across them, including 1,101 with verified work emails. London is the largest hub.

This list covers environmental 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.

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

266Companies

3,020Contacts tracked

1,101Verified emails

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The 25 largest environmental monitoring companies based in the United Kingdom

Ranked by team size

Top 25 of 266 environmental monitoring 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 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	Normec I2 Analytical	Strong evidence	Hertfordshire, United KingdomHQ checked Sep 19, 2026	201-500	218 contacts →
	Strong evidence “Founded in 2003, Normec i2 Analytical is one of Europe's leading environmental testing companies providing its customers a comprehensive range of analytical, monitoring and…” Source: RevenueBase Database · checked Sep 19, 2026
2	Naturemetrics	Partial evidence	Surrey, United KingdomHQ checked Sep 19, 2026	201-500	136 contacts →
	Partial evidence “NatureMetrics is a world leader in delivering nature data and intelligence, deploying cutting-edge technology to generate biodiversity insights at scale using environmental DNA…” Source: RevenueBase Database · checked Sep 19, 2026
3	Lucion Services LTD	Indirect evidence	Gateshead, United KingdomHQ checked Sep 19, 2026	501-1,000	132 contacts →
	Indirect evidence “Established in 2002, Lucion Services has gone on to become the UK’s leading provider of trusted hazardous materials testing, surveying and consultancy.” Source: RevenueBase Database · checked Sep 19, 2026
4	Seiche	Partial evidence	Holsworthy, United KingdomHQ checked Sep 19, 2026	51-200	59 contacts →
	Partial evidence “Seiche provides marine technology and environmental service solutions for the offshore marine industries.” Source: RevenueBase Database · checked Sep 19, 2026
5	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
6	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
7	AIR Quality Consultants LTD Part Of Logika Group	Indirect evidence	Bristol, United KingdomHQ checked Sep 19, 2026	51-200	47 contacts →
	Indirect evidence “Established in 1993, Air Quality Consultants has a strong and proven track record in providing independent air quality services to private and public sector clients, both within…” Source: RevenueBase Database · checked Sep 19, 2026
8	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
9	Aether	Indirect evidence	Oxford, United KingdomHQ checked Sep 19, 2026	11-50	45 contacts →
	Indirect evidence “Aether provides consultancy in air quality and climate change emissions inventories, forecasting and policy analysis.” Source: RevenueBase Database · checked Sep 19, 2026
10	Greenspark	Partial evidence	Doncaster, United KingdomHQ checked Sep 19, 2026	51-200	44 contacts →
	Partial evidence “Green Spark delivers innovative solutions for environmental management and pollution control, tailored to fit your company requirements.” Source: RevenueBase Database · checked Sep 19, 2026
11	System Hygienics LTD	Partial evidence	Polegate, United KingdomHQ checked Sep 19, 2026	11-50	42 contacts →
	Partial evidence “At System Hygienics, we pride ourselves on being industry leaders in providing clean air and a safe environment for your employees, patients, and customers.” Source: RevenueBase Database · checked Sep 19, 2026
12	Envirochem Analytical Laboratories LTD	Partial evidence	Fareham, United KingdomHQ checked Sep 19, 2026	51-200	42 contacts →
	Partial evidence “At Envirochem, we empower businesses to stay compliant, safe, and efficient with our industry-leading environmental risk mitigation services.” Source: RevenueBase Database · checked Sep 19, 2026
13	Environment Systems	Partial evidence	Aberystwyth, United KingdomHQ checked Sep 19, 2026	11-50	39 contacts →
	Partial evidence “Environment Systems is an established environmental and agricultural data company, providing trusted evidence and insight to governments and industry across the world since 2003.” Source: RevenueBase Database · checked Sep 19, 2026
14	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
15	IOPT	Strong evidence	Glasgow, United KingdomHQ checked Sep 19, 2026	11-50	31 contacts →
	Strong evidence “Asset environmental monitoring specialising in large (500+) property portfolios.” Source: RevenueBase Database · checked Sep 19, 2026
16	Rivertrace Limited	Partial evidence	Redhill, United KingdomHQ checked Sep 19, 2026	11-50	28 contacts →
	Partial evidence “Specialists in water quality monitoring Rivertrace Limited is an ISO9001 Quality-Assured Company and market leader with over 30 years’ experience of oil-in-water monitoring.” Source: RevenueBase Database · checked Sep 19, 2026
17	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
18	HVDS	Indirect evidence	Stafford, United KingdomHQ checked Sep 19, 2026	11-50	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, 2026
19	Environmental Compliance Limited - ECL	Partial evidence	Treforest Industrial Estate, United KingdomHQ checked Sep 19, 2026	11-50	26 contacts →
	Partial evidence “ECL provides a specialist range of consultancy, measurement, monitoring and training services to clients operating in a broad range of industrial sectors.” Source: RevenueBase Database · checked Sep 19, 2026
20	Corgin LTD	Indirect evidence	Stafford, United KingdomHQ checked Sep 19, 2026	11-50	25 contacts →
	Indirect evidence “Corgin gives peace of mind to those who care about clean water and clean air.” Source: RevenueBase Database · checked Sep 19, 2026
21	Cass Allen	Strong evidence	Bedford, United KingdomHQ checked Sep 19, 2026	11-50	25 contacts →
	Strong evidence “Visit Cass Allen is a specialist environmental consultancy focused on Acoustics, Air Quality and Construction Monitoring within the development, construction and infrastructure…” Source: RevenueBase Database · checked Sep 19, 2026
22	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
23	Oracle Environmental Experts	Partial evidence	Hanley Swan, United KingdomHQ checked Sep 19, 2026	11-50	25 contacts →
	Partial evidence “Oracle Environmental Experts Limited (OEE) provide expert environmental services to a wide range of clients with our core strength in the assessment of environmental impacts…” Source: RevenueBase Database · checked Sep 19, 2026
24	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
25	Tems International	Partial evidence	Aberdeen, United KingdomHQ checked Sep 19, 2026	1-10	24 contacts →
	Partial evidence “Turnkey Environmental Management Services Limited (TEMS) was incorporated in Scotland UK and from its Aberdeen base, provides environmental management services globally to the oil…” 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 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 companies.
Partial evidence: Its own public description names part of environmental monitoring 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 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 266 environmental monitoring companies based in the United Kingdom

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Environmental monitoring companies based in the United Kingdom at a glance

As of Sep 19, 2026

36.5%Verified-email coverage

11.4Average contacts per company

1-10Median size (employees)

9.4%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

152

11-50

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 266 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 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 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 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 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, 1,101 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 companies by metro

Environmental monitoring companies in London25

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 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 companies are there based in the United Kingdom?

RevenueBase identified 266 environmental 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?

Normec I2 Analytical, headquartered in Watford, tops this list with the largest team on record.

Which city has the most environmental monitoring companies?

London leads with 25 headquartered companies, followed by Cambridge (5) and Leeds (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 1,101 verified decision-maker contacts tracked across these 266 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.