Company lists · Data refreshed September 2026
Top 25 Toxicology testing services based in the United Kingdom
RevenueBase identified 61 company matches for toxicology testing services associated with the United Kingdom as of September 2026 and tracks 1,119 professional contacts across them, including 555 with verified work emails. London is the largest hub.
This list covers company matches for toxicology testing services 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.
The 25 largest toxicology testing services based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 192 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 | |||||
| 2 | 112 contacts → | ||||
Exact match “In 2026, Yordas Group was acquired by 3E, the leading global provider of expert-led AI compliance solutions for chemical and workplace safety, product stewardship, and sustainable…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 3 | 77 contacts → | ||||
Exact match “Express Medicals is a leading provider of Occupational Health and Drug & Alcohol testing services, specialising in safety‑critical industries in the UK.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 4 | 64 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 | |||||
| 5 | 63 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 | |||||
| 6 | 54 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 | |||||
| 7 | 52 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 | |||||
| 8 | 48 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 | |||||
| 9 | 42 contacts → | ||||
Exact match “Hampton Knight is the UK’s leading Alcohol, Drug and COVID-19 testing specialist.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 10 | 39 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 | |||||
| 11 | 31 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 | |||||
| 12 | 28 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 | |||||
| 13 | 22 contacts → | ||||
Exact match “Based in Kent, UK, Brussels, Belgium and Bockenem, Germany, Vitis Regualtory delivers expert environmental and toxicology consultancy on the assessment and management of the…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 14 | 15 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 | |||||
| 15 | 14 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 | |||||
| 16 | 14 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 | |||||
| 17 | 14 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 | |||||
| 18 | 12 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 | |||||
| 19 | 10 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 | |||||
| 20 | 9 contacts → | ||||
Exact match “CXR Biosciences is now Concept Life Sciences.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 21 | 7 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 | |||||
| 22 | 7 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 23 | 7 contacts → | ||||
Exact match “Drug & Alcohol Screening Specialists With 25+ years of expertise, D.tec International provides comprehensive drug and alcohol screening solutions across the UK.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 24 | 6 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 | |||||
| 25 | 6 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 | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “toxicology testing services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 61 toxicology testing services based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 555 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Toxicology testing services based in the United Kingdom at a glance
As of Sep 22, 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 61 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 services” 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 555 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 services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many toxicology testing services are there based in the United Kingdom?
RevenueBase identified 61 company matches for toxicology testing services 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 services?
London leads with 5 company records, followed by Manchester (5) 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 555 professional contacts with verified work emails tracked across these 61 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 61 toxicology testing services based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Toxicology testing services by geography
- Toxicology testing services based in Australia
- Toxicology testing services based in Brazil
- Toxicology testing services based in Canada
- Toxicology testing services based in France
- Toxicology testing services based in Germany
- Toxicology testing services based in India
- Toxicology testing services based in the United States
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.
More company lists
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- Lists A-Z
- New lists
- Toxicology testing services based in Australia
- Toxicology testing services based in Brazil
- Toxicology testing services based in Canada
- Toxicology testing services based in France
- Toxicology testing services based in Germany
- Toxicology testing services based in India
Company intelligence · public preview
Top 25 toxicology testing services based in the United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 61 matching company records for toxicology testing services based in the United Kingdom, with 1,119 tracked contacts and 555 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 22, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 toxicology testing services based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Cyprotexcyprotex.comHQ: Macclesfield, United KingdomReported employees: 51-200 | Macclesfield, United Kingdom | 51-200 | Exact match | 192 contacts → |
“Founded in Cyprotex has grown to become an industry leader in in vitro and in silico ADME-Tox.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Yordas Groupyordasgroup.comHQ: Lancaster, United KingdomReported employees: 51-200 | Lancaster, United Kingdom | 51-200 | Exact match | 112 contacts → |
“In 2026, Yordas Group was acquired by 3E, the leading global provider of expert-led AI compliance solutions for chemical and workplace safety, product stewardship, and sustainable…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Express Medicals PLCexpressmedicals.co.uk HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 77 contacts → |
“Express Medicals is a leading provider of Occupational Health and Drug & Alcohol testing services, specialising in safety‑critical industries in the UK.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Apconixapconix.comHQ: Macclesfield, United KingdomReported employees: 11-50 | Macclesfield, United Kingdom | 11-50 | Exact match | 64 contacts → |
“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 description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | CEMAScemas.co.uk HQ: Wokingham, United KingdomReported employees: 51-200 | Wokingham, United Kingdom | 51-200 | Exact match | 63 contacts → |
“CEMAS is an independent analytical laboratory with over 35 years’ experience supporting the agrochemical, biocide and life science sectors.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Gentronix, Part Of Scantox Groupscantox.comHQ: Alderley Edge, United KingdomReported employees: 51-200 | Alderley Edge, United Kingdom | 51-200 | Exact match | 54 contacts → |
“Gentronix was founded in as a specialist CRO delivering predictive toxicology products and services to global chemical sectors.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Scymarisscymaris.comHQ: Brixham, United KingdomReported employees: 51-200 | Brixham, United Kingdom | 51-200 | Exact match | 52 contacts → |
“Scymaris Ltd is headquartered in Brixham, Devon UK.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Labcorp Limitedlabcorp.comHQ: Princes Risborough, United KingdomReported employees: 11-50 | Princes Risborough, United Kingdom | 11-50 | Exact match | 48 contacts → |
“We believe in harnessing science for human good.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Hampton Knighthamptonknight.co.uk HQ: Northampton, United KingdomReported employees: 201-500 | Northampton, United Kingdom | 201-500 | Exact match | 42 contacts → |
“Hampton Knight is the UK’s leading Alcohol, Drug and COVID-19 testing specialist.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | DNA Legaldnalegal.com HQ: Frome, United KingdomReported employees: 11-50 | Frome, United Kingdom | 11-50 | Exact match | 39 contacts → |
“DNA Legal offer drug, alcohol, paternity, and forensic testing.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Analytical Services Internationalbioanalytics.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 31 contacts → |
“For over 30 years, ASI has worked internationally with leading Clinical Research Organisations and across the pharmaceutical sector in drug discovery and pharmacovigilance…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Marchwoodcawood.co.ukHQ: Marchwood, United KingdomReported employees: 51-200 | Marchwood, United Kingdom | 51-200 | Exact match | 28 contacts → |
“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 description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Vitis Regulatoryvitisregulatory.comHQ: Canterbury, United KingdomReported employees: 11-50 | Canterbury, United Kingdom | 11-50 | Exact match | 22 contacts → |
“Based in Kent, UK, Brussels, Belgium and Bockenem, Germany, Vitis Regualtory delivers expert environmental and toxicology consultancy on the assessment and management of the…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Crystal Health Group Limitedcrystal-health.co.uk HQ: Manchester, United KingdomReported employees: 51-200 | Manchester, United Kingdom | 51-200 | Exact match | 15 contacts → |
“Crystal Health is a leading provider of DNA Testing, Drug and Alcohol Testing, and occupational medical assessments in the UK.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Xcellr8x-cellr8.com HQ: Daresbury, United KingdomReported employees: 11-50 | Daresbury, United Kingdom | 11-50 | Exact match | 14 contacts → |
“XCellR8 is a world leader in non-animal testing.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Screen4 Holdingsscreen4.orgHQ: Barnsley, United KingdomReported employees: 1-10 | Barnsley, United Kingdom | 1-10 | Exact match | 14 contacts → |
“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 description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Bibra Toxicology Advice & Consultingbibra-information.co.uk HQ: Wallington, United KingdomReported employees: 11-50 | Wallington, United Kingdom | 11-50 | Exact match | 14 contacts → |
“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 description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Aspire-Labsaspire-labs.co.ukHQ: East Dagenham, United KingdomReported employees: 11-50 | East Dagenham, United Kingdom | 11-50 | Exact match | 12 contacts → |
“Aspire Labs is a privately held contract analytical and microbiology testing lab in London.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | DNA Workplacednaworkplace.com HQ: Frome, United KingdomReported employees: 11-50 | Frome, United Kingdom | 11-50 | Exact match | 10 contacts → |
“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 description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | CXR Biosciences The Investigative And Exploratory Toxicology Company NOW Concept Life Sciencescxrbiosciences.com HQ: Dundee, United KingdomReported employees: 11-50 | Dundee, United Kingdom | 11-50 | Exact match | 9 contacts → |
“CXR Biosciences is now Concept Life Sciences.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Hoeford Research Limitedhoeford.com HQ: Gosport, United KingdomReported employees: 11-50 | Gosport, United Kingdom | 11-50 | Exact match | 7 contacts → |
“For nearly 60 years pharmaceutical companies, vaccine researchers and manufacturers, biopharmaceutical startups and their investors as well as chemical and agrochemical…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Attogrouptheattogroup.com HQ: Badersfield, United KingdomReported employees: 11-50 | Badersfield, United Kingdom | 11-50 | Exact match | 7 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 23 |  D.Tec International LTDdtecinternational.comHQ: Lancashire, United KingdomReported employees: 1-10 | Lancashire, United Kingdom | 1-10 | Exact match | 7 contacts → |
“Drug & Alcohol Screening Specialists With 25+ years of expertise, D.tec International provides comprehensive drug and alcohol screening solutions across the UK.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | HQ: Dartford, United KingdomReported employees: 11-50 | Dartford, United Kingdom | 11-50 | Exact match | 6 contacts → |
“David Norris Analytical Laboratories Limited is a privately owned independent Company established in 2005.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Mambo-Toxmambo-tox.co.uk HQ: Southampton, United KingdomReported employees: 11-50 | Southampton, United Kingdom | 11-50 | Exact match | 6 contacts → |
“Mambo-Tox started at the University of Southampton as the Agrochemical Evaluation Unit (AEU) in 1984 providing terrestrial ecotoxicology studies.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 61 company matches
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Toxicology testing services: dataset insights
September 22, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
59 records in the displayed employee bands.
2 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 61 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 22, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for toxicology testing services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many toxicology testing services did RevenueBase find based in the United Kingdom?
The saved snapshot records 61 matching company records, 1,119 tracked contacts and 555 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 22, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Toxicology testing services by geography
- Toxicology testing services based in Australia
- Toxicology testing services based in Brazil
- Toxicology testing services based in Canada
- Toxicology testing services based in France
- Toxicology testing services based in Germany
- Toxicology testing services based in India
- Toxicology testing services based in the United States
Cite this list
RevenueBase Data Team. Top 25 toxicology testing services based in the United Kingdom. Snapshot: September 22, 2026. https://revenuebase.ai/companies/toxicology-testing-services/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Toxicology testing services based in Australia
- Toxicology testing services based in Brazil
- Toxicology testing services based in Canada
- Toxicology testing services based in France
- Toxicology testing services based in Germany
- Toxicology testing services based in India
Company intelligence · public preview
Top 25 toxicology testing services based in the United Kingdom
RevenueBase records 61 matching company records for toxicology testing services based in the United Kingdom, with 1,119 tracked contacts and 555 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 22, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 toxicology testing services based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Cyprotexcyprotex.com HQ: Macclesfield, United KingdomReported employees: 51-200 | Macclesfield, United Kingdom | 51-200 | Exact match | 192 contacts → |
“Founded in Cyprotex has grown to become an industry leader in in vitro and in silico ADME-Tox.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Yordas Groupyordasgroup.com HQ: Lancaster, United KingdomReported employees: 51-200 | Lancaster, United Kingdom | 51-200 | Exact match | 112 contacts → |
“In 2026, Yordas Group was acquired by 3E, the leading global provider of expert-led AI compliance solutions for chemical and workplace safety, product stewardship, and sustainable…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Express Medicals PLCexpressmedicals.co.uk HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 77 contacts → |
“Express Medicals is a leading provider of Occupational Health and Drug & Alcohol testing services, specialising in safety‑critical industries in the UK.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Apconixapconix.com HQ: Macclesfield, United KingdomReported employees: 11-50 | Macclesfield, United Kingdom | 11-50 | Exact match | 64 contacts → |
“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 description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | CEMAScemas.co.uk HQ: Wokingham, United KingdomReported employees: 51-200 | Wokingham, United Kingdom | 51-200 | Exact match | 63 contacts → |
“CEMAS is an independent analytical laboratory with over 35 years’ experience supporting the agrochemical, biocide and life science sectors.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Gentronix, Part Of Scantox Groupscantox.com HQ: Alderley Edge, United KingdomReported employees: 51-200 | Alderley Edge, United Kingdom | 51-200 | Exact match | 54 contacts → |
“Gentronix was founded in as a specialist CRO delivering predictive toxicology products and services to global chemical sectors.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Scymarisscymaris.com HQ: Brixham, United KingdomReported employees: 51-200 | Brixham, United Kingdom | 51-200 | Exact match | 52 contacts → |
“Scymaris Ltd is headquartered in Brixham, Devon UK.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Labcorp Limitedlabcorp.com HQ: Princes Risborough, United KingdomReported employees: 11-50 | Princes Risborough, United Kingdom | 11-50 | Exact match | 48 contacts → |
“We believe in harnessing science for human good.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Hampton Knighthamptonknight.co.uk HQ: Northampton, United KingdomReported employees: 201-500 | Northampton, United Kingdom | 201-500 | Exact match | 42 contacts → |
“Hampton Knight is the UK’s leading Alcohol, Drug and COVID-19 testing specialist.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | DNA Legaldnalegal.com HQ: Frome, United KingdomReported employees: 11-50 | Frome, United Kingdom | 11-50 | Exact match | 39 contacts → |
“DNA Legal offer drug, alcohol, paternity, and forensic testing.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Analytical Services Internationalbioanalytics.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 31 contacts → |
“For over 30 years, ASI has worked internationally with leading Clinical Research Organisations and across the pharmaceutical sector in drug discovery and pharmacovigilance…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Marchwoodcawood.co.uk HQ: Marchwood, United KingdomReported employees: 51-200 | Marchwood, United Kingdom | 51-200 | Exact match | 28 contacts → |
“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 description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Vitis Regulatoryvitisregulatory.com HQ: Canterbury, United KingdomReported employees: 11-50 | Canterbury, United Kingdom | 11-50 | Exact match | 22 contacts → |
“Based in Kent, UK, Brussels, Belgium and Bockenem, Germany, Vitis Regualtory delivers expert environmental and toxicology consultancy on the assessment and management of the…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Crystal Health Group Limitedcrystal-health.co.uk HQ: Manchester, United KingdomReported employees: 51-200 | Manchester, United Kingdom | 51-200 | Exact match | 15 contacts → |
“Crystal Health is a leading provider of DNA Testing, Drug and Alcohol Testing, and occupational medical assessments in the UK.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Xcellr8x-cellr8.com HQ: Daresbury, United KingdomReported employees: 11-50 | Daresbury, United Kingdom | 11-50 | Exact match | 14 contacts → |
“XCellR8 is a world leader in non-animal testing.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Screen4 Holdingsscreen4.org HQ: Barnsley, United KingdomReported employees: 1-10 | Barnsley, United Kingdom | 1-10 | Exact match | 14 contacts → |
“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 description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Bibra Toxicology Advice & Consultingbibra-information.co.uk HQ: Wallington, United KingdomReported employees: 11-50 | Wallington, United Kingdom | 11-50 | Exact match | 14 contacts → |
“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 description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Aspire-Labsaspire-labs.co.uk HQ: East Dagenham, United KingdomReported employees: 11-50 | East Dagenham, United Kingdom | 11-50 | Exact match | 12 contacts → |
“Aspire Labs is a privately held contract analytical and microbiology testing lab in London.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | DNA Workplacednaworkplace.com HQ: Frome, United KingdomReported employees: 11-50 | Frome, United Kingdom | 11-50 | Exact match | 10 contacts → |
“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 description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | CXR Biosciences The Investigative And Exploratory Toxicology Company NOW Concept Life Sciencescxrbiosciences.com HQ: Dundee, United KingdomReported employees: 11-50 | Dundee, United Kingdom | 11-50 | Exact match | 9 contacts → |
“CXR Biosciences is now Concept Life Sciences.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Hoeford Research Limitedhoeford.com HQ: Gosport, United KingdomReported employees: 11-50 | Gosport, United Kingdom | 11-50 | Exact match | 7 contacts → |
“For nearly 60 years pharmaceutical companies, vaccine researchers and manufacturers, biopharmaceutical startups and their investors as well as chemical and agrochemical…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Attogrouptheattogroup.com HQ: Badersfield, United KingdomReported employees: 11-50 | Badersfield, United Kingdom | 11-50 | Exact match | 7 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 23 | D.Tec International LTDdtecinternational.com HQ: Lancashire, United KingdomReported employees: 1-10 | Lancashire, United Kingdom | 1-10 | Exact match | 7 contacts → |
“Drug & Alcohol Screening Specialists With 25+ years of expertise, D.tec International provides comprehensive drug and alcohol screening solutions across the UK.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | HQ: Dartford, United KingdomReported employees: 11-50 | Dartford, United Kingdom | 11-50 | Exact match | 6 contacts → |
“David Norris Analytical Laboratories Limited is a privately owned independent Company established in 2005.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Mambo-Toxmambo-tox.co.uk HQ: Southampton, United KingdomReported employees: 11-50 | Southampton, United Kingdom | 11-50 | Exact match | 6 contacts → |
“Mambo-Tox started at the University of Southampton as the Agrochemical Evaluation Unit (AEU) in 1984 providing terrestrial ecotoxicology studies.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 61 company matches
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Toxicology testing services: dataset insights
September 22, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
59 records in the displayed employee bands.
2 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 61 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 22, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for toxicology testing services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many toxicology testing services did RevenueBase find based in the United Kingdom?
The saved snapshot records 61 matching company records, 1,119 tracked contacts and 555 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 22, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 toxicology testing services based in the United Kingdom. Snapshot: September 22, 2026. https://revenuebase.ai/companies/toxicology-testing-services/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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