DNA, Drug and Alcohol Testing

Cellmark provides court approved DNA testing and forensic quality hair drug and alcohol testing services to members of the public, local authority children's services teams, government departments and the legal profession.

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>35 years
Established in 1987, Cellmark is the UK’s most experienced DNA testing service and was the world’s first private DNA fingerprinting company.

With a rich history of innovation and a collective drive to be the best at what we do. Our 500+ staff members are at the heart of our business.

We work with the general public, local authorities, 80% of UK police forces plus national and international government agencies.

Approaching 3 million human DNA samples and over 2.5 million animal samples DNA tested at our laboratories in the UK.


Our Laboratory Testing Services

Cellmark was the world's first commercial DNA testing laboratory and today is one of the most trusted forward thinking DNA analysis companies in Europe. Click an image below to find out more about our services:

Testing Services - Court Approved DNA Relationship Testing

Legal DNA Testing
Confidential, conclusive and court approved 'Next Day' DNA testing to establish paternity and other relationships.

DNA Testing Services - DNA Immigration Testing

Immigration Testing
DNA tests for individuals seeking UK Visas. Accepted by UK Visas and Immigration and immigration departments around the globe.

Testing Services - Hair Drug Testing and Analysis

Hair Drug Testing
Our accredited hair drug testing service provides rapid, reliable scientific analysis, clearly reported and simply explained.

Testing Services - Hair, Blood and Urine Alcohol Testing and Analysis

Alcohol Testing
Our alcohol testing service tests for evidence of chronic excessive alcohol consumption in hair, blood and urine samples.

Contact our Customer Services Team


Call Us Today

We're here to provide help and assistance - call our friendly customer services team to discuss your DNA Relationship, Drug and Alcohol testing requirements.

0800 036 2522

8.00am to 6.00pm Monday - Friday

Our extended opening hours ensure you are able to speak to someone at Cellmark when it's convenient for you - 96% of our calls answered within 15 seconds.


Why Choose Cellmark?

Cellmark is the UK's most experienced DNA testing company, since 1987 we have conducted hundreds of thousands of tests. Cellmark's skilled staff and our strict, accredited, laboratory processes ensure that your testing is handled confidentially and carefully to produce rapid, reliable results.

Icon - Nationwide DNA and Hair Sampling Service

Nationwide Sampling Service
We provide a professional and reliable DNA sampling and hair sampling service at a location most convenient for you.

Icon - Online Quote and Case Registration

Instant Online Quotes
You can obtain a hair drug & alcohol or DNA testing quote and register your case instantly online - it's quick, easy and secure.

Icon - Competitive Pricing

Competitive Pricing
We keep our prices low without compromising on accuracy or quality. You can rest assured - your testing is in good hands.

Next Day DNA Testing Icon and Laboratory


Next Day DNA Results

Cellmark provides a fast court approved service without compromising accuracy and quality. Register your DNA relationship testing requirements by phone or online and we'll send sample collection kits to your chosen independent sampler. On return of all the DNA test kits we immediately begin testing and will issue your test results report the next working day* - at no extra cost.

* Over 90% of our DNA testing reports are issued the next working day


Court Approved and Accredited

As a member of the Ministry of Justice's list of accredited bodies, Cellmark is accredited to carry out parentage tests directed by the civil courts in England and Wales under section 20 of the Family Law Reform Act 1969. Our laboratory in Abingdon, Oxfordshire is accredited to ISO 17025. Cellmark is a UKAS accredited testing laboratory No. 2045 and is certified to ISO 9001, ISO 14001 and ISO 27001 international quality standards.

Quality Logo Composite - Ministry of Justice, SGS, UKAS and Cyber Essentials Plus


Relationship DNA Tests

Cellmark pioneered the introduction of DNA analysis for paternity testing. We deliver a next day service using the most conclusive 24 marker genetic test across our range of DNA relationship testing services. This includes DNA testing for Maternity, Sibling, Avuncular, Grandparentage and Immigration matters as well.

Register a caseInstant quote

Paternity Test

DNA Paternity testing offers a scientific means of establishing whether a man is or is not the biological father of a child.

Find out more about DNA Paternity testing

Maternity Test

Maternity DNA tests are sometimes used by people who have been adopted to confirm their birth mother.

Find out more about DNA Maternity testing

Sibling Test

A sibling test can be used to identify whether two, or more, children share the same biological parents.

A DNA test can also be used to test twins to quickly determine whether they are identical (monozygotic) or non-identical (dizygotic).

Find out more about DNA Sibling testing

Grandparent Test

Grandparentage testing can establish family relationships even when the parents cannot be tested.

Find out more about Grandparent testing

Aunt or Uncle Test

Aunt/Uncle (Avuncular) testing can be used to confirm a relationship between a niece/nephew and an aunt/uncle

Find out more about avuncular testing

Register a caseInstant quote


Drug and Alcohol Tests

We apply the same high level of scientific expertise and customer service to our hair drug testing and alcohol testing to provide the complete package of analytical services for our customers.

Register a caseInstant quote

Hair Drug Test

A non-invasive method of providing evidence of an individual's history of drug use. We test for 29 common 'drugs of abuse' and drug metabolites.

Find out more about hair drug testing

Hair Alcohol Test

We analyse for chronic alcohol consumption by testing for the breakdown products of alcohol incorporated into hair, specifically EtG and FAEEs.

Find out more about alcohol testing

Blood Alcohol Test

Blood testing allows us to analyse levels of Carbohydrate deficient transferrin (CDT) and provide Liver Function Testing (LFT).

Find out more about alcohol testing

Urine Alcohol Test

A urine test detects levels of EtG and EtS.

Find out more about alcohol testing

Register a caseInstant quote


Our Customers

Cellmark provides tailored testing services to meet the specific requirements of our family law and private customers. Find out more about how we can help you by clicking an image below:

Customer Information for Family Law Solicitors

Solicitors and Barristers
Cellmark is the company of choice for many of the UK's leading legal practitioners for court approved testing.

Customer Information for Social Workers and Local Authorities

Local Authorities
We provide local authority solicitors and social workers with the complete package of analytical testing services.

Customer Information for Private Individuals

Private Individuals
We’ve provided testing services for over 600,000 people - our customer services team will assist you every step of the way.

Customer Information for Healthcare Providers

Healthcare Professionals
Cellmark is the considered choice for healthcare professionals whose patients are looking into DNA testing.


What our customers are saying . . .


Service Excellence Through Science

Cellmark is a leading provider of a wide range of DNA and related forensic services. With high sensitivity DNA analysis at the core of our business, we continue to develop new services which capitalise on our specialist technical expertise, our drive for innovation and our proven history of reliable service delivery.

Other Services Link - DNA at Home DNA Testing

Home DNA Testing
The quality you would expect from the UK's most experienced paternity tester with the convenience of sampling in your own home.

Other Services Link - Cellmark Forensic Services

Forensic Services
Cellmark provides high quality, specialist forensic science services to support the investigation of a wide range of offences.

Other Services Link - DNA Protected and the Forensic Dog DNA Database

DNA Protected
DNA Protected has been developed to deter thieves, provide dog owners with peace of mind and to help collar the criminals.

Other Services Link - Great Crested Newt eDNA Testing Services

eDNA Testing
Cellmark's eDNA testing services provides a rapid and effective way to test for the presence or absence of great crested newts.

Other Services Link - Cellmark Genomic Solutions

Genomic Solutions
Assay design, development, validation and laboratory testing services to support you with your project.