Company lists · Data refreshed September 2026

Top 25 Toxicology testing laboratories based in the United Kingdom

RevenueBase identified 53 company matches for toxicology testing laboratories associated with the United Kingdom as of September 2026 and tracks 849 professional contacts across them, including 436 with verified work emails. London is the largest hub.

This list covers company matches for toxicology testing laboratories associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 22, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 22, 2026 How this list was built
53Companies
849Contacts tracked
436Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest toxicology testing laboratories based in the United Kingdom

Ranked by team size
Top 25 of 53 company matches for toxicology testing laboratories based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMacclesfield, United KingdomHQ recorded Sep 22, 202651-200192 contacts →

Exact match

“Founded in Cyprotex has grown to become an industry leader in in vitro and in silico ADME-Tox.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
2Exact matchMacclesfield, United KingdomHQ recorded Sep 22, 202611-5064 contacts →

Exact match

“ApconiX was formed by three AstraZeneca colleagues with the drive and ambition to create a world-renowned company known for its expertise in nonclinical safety toxicology and ion…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
3Exact matchWokingham, United KingdomHQ recorded Sep 22, 202651-20063 contacts →

Exact match

“CEMAS is an independent analytical laboratory with over 35 years’ experience supporting the agrochemical, biocide and life science sectors.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4Exact matchAlderley Edge, United KingdomHQ recorded Sep 22, 202651-20054 contacts →

Exact match

“Gentronix was founded in as a specialist CRO delivering predictive toxicology products and services to global chemical sectors.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5Exact matchBrixham, United KingdomHQ recorded Sep 22, 202651-20052 contacts →

Exact match

“Scymaris Ltd is headquartered in Brixham, Devon UK.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6Exact matchStanley, United KingdomHQ recorded Sep 22, 202651-20052 contacts →

Exact match

“Established in 2002, Chemtech Environmental, part of Celnor Group, has grown to become a leading supplier of chemical testing throughout the UK and Ireland.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7Exact matchPrinces Risborough, United KingdomHQ recorded Sep 22, 202611-5048 contacts →

Exact match

“We believe in harnessing science for human good.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8Exact matchFrome, United KingdomHQ recorded Sep 22, 202611-5039 contacts →

Exact match

“DNA Legal offer drug, alcohol, paternity, and forensic testing.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 22, 202611-5031 contacts →

Exact match

“For over 30 years, ASI has worked internationally with leading Clinical Research Organisations and across the pharmaceutical sector in drug discovery and pharmacovigilance…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10Exact matchMarchwood, United KingdomHQ recorded Sep 22, 202651-20028 contacts →

Exact match

“Marchwood, part of Cawood, is a leading UK Dioxin and Furans analysis laboratory and the UK’s leading specialist laboratory for independent occupational hygiene analysis, offering…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
11Exact matchManchester, United KingdomHQ recorded Sep 22, 202651-20015 contacts →

Exact match

“Crystal Health is a leading provider of DNA Testing, Drug and Alcohol Testing, and occupational medical assessments in the UK.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12Exact matchDaresbury, United KingdomHQ recorded Sep 22, 202611-5014 contacts →

Exact match

“XCellR8 is a world leader in non-animal testing.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13Exact matchBarnsley, United KingdomHQ recorded Sep 22, 20261-1014 contacts →

Exact match

“Screen4 Limited is part of the screen4 Holdings Group and has played a key part in driving and implementing best practice Drug and Alcohol testing in safety Sensitive industries…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchWallington, United KingdomHQ recorded Sep 22, 202611-5014 contacts →

Exact match

“Bibra toxicology advice & consulting is one of Europe's leading chemical hazard and risk assessment organisations; providing assistance across a broad range of industries.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15Exact matchEast Dagenham, United KingdomHQ recorded Sep 22, 202611-5012 contacts →

Exact match

“Aspire Labs is a privately held contract analytical and microbiology testing lab in London.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16Exact matchFrome, United KingdomHQ recorded Sep 22, 202611-5010 contacts →

Exact match

“As experts in scientific testing for over 18 years, our leadership teams have worked with trusted providers of drug, alcohol, health and virus testing kits to launch comprehensive…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17Exact matchDundee, United KingdomHQ recorded Sep 22, 202611-509 contacts →

Exact match

“CXR Biosciences is now Concept Life Sciences.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18Exact matchGosport, United KingdomHQ recorded Sep 22, 202611-507 contacts →

Exact match

“For nearly 60 years pharmaceutical companies, vaccine researchers and manufacturers, biopharmaceutical startups and their investors as well as chemical and agrochemical…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19Exact matchBadersfield, United KingdomHQ recorded Sep 22, 202611-507 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20Exact matchDartford, United KingdomHQ recorded Sep 22, 202611-506 contacts →

Exact match

“David Norris Analytical Laboratories Limited is a privately owned independent Company established in 2005.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21Exact matchSouthampton, United KingdomHQ recorded Sep 22, 202611-506 contacts →

Exact match

“Mambo-Tox started at the University of Southampton as the Agrochemical Evaluation Unit (AEU) in 1984 providing terrestrial ecotoxicology studies.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22Exact matchNorwich, United KingdomHQ recorded Sep 22, 202611-506 contacts →

Exact match

“Our mission is to make workplaces and healthcare settings safer by reducing incidents and overdoses related to substance abuse.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23Exact matchDerby, United KingdomHQ recorded Sep 22, 20261-106 contacts →

Exact match

“ResChem Analytical is a responsive, client focused analytical laboratory.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24Exact matchBirmingham, United KingdomHQ recorded Sep 22, 20261-105 contacts →

Exact match

“Toxicology UK Ltd is a provider of toxicology services to HM Coroners in England and Wales.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25Exact matchSwindon, United KingdomHQ recorded Sep 22, 202651-2005 contacts →

Exact match

“Racoo Screening has over 20 years of experience implementing workplace drug and alcohol testing programs, DNA testing, and infectious disease screening.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

Showing 25 of 53 toxicology testing laboratories based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 436 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Toxicology testing laboratories based in the United Kingdom at a glance

As of Sep 22, 2026
51.4%Verified-email coverage
16.0Average contacts per company
11-50Median size (employees)
7.5%Largest-city concentration · London
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
22
11-50
19
51-200
10
10001+
1

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 53 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “toxicology testing laboratories” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 436 professional contacts with verified work emails across the full matched dataset. 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 22, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “toxicology testing laboratories”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many toxicology testing laboratories are there based in the United Kingdom?

RevenueBase identified 53 company matches for toxicology testing laboratories associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Cyprotex tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most toxicology testing laboratories?

London leads with 4 company records, followed by Manchester (4) and Barnsley (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 436 professional contacts with verified work emails tracked across these 53 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 2026.

Ready to reach these companies? Verified emails and direct dials for all 53 toxicology testing laboratories based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

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 SmartSearch, 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.