About Cellmark

Established in 1987, Cellmark pioneered the introduction of DNA testing for paternity and relationship analysis at our DNA laboratories in Abingdon, Oxfordshire. We provide rapid, reliable, quality accredited paternity and relationship testing - with over 35 years' experience we provide a service you can trust.

We deliver a next day service as standard for all our customers, for paternity, maternity, sibling, uncle/aunt relationships, grandparent testing and immigration matters. If your samples reach us by 10am we aim to get the test report to you by the end of the next working day, at no extra cost!

You can order kits online or by calling us free on 0800 043 1987 - our friendly customer services team are experienced at dealing with confidential matters and are here to help.


Established in 1987, Cellmark was the world's first DNA fingerprinting company and is the UK's most experienced DNA testing service. As one of the largest forensic and DNA testing companies in the world. Cellmark has a reputation for quality, reliability and service excellence.


Our 450+ staff are the heart of our business. Based in Abingdon Oxfordshire, Chorely Lancashire and in Durham, we have a rich history of innovation and a collective drive to be the best at what we do.

UK Accredited labs

Our state-of-the-art laboratories are accredited to ISO 17025 and certified to ISO 9001, ISO 14001 and ISO 27001 international quality standards. This means you can be sure your test will be carried out reliably, with care, accuracy and precision.

Also from Cellmark

Cellmark Forensic Services

From presenting the first DNA evidence at the Old Bailey in 1987 to pushing the boundaries of sensitivity in numerous high profile forensic cases, we have a reputation for innovation, quality and technical excellence - from crime scene to court room. As one of the largest forensic laboratories in the world, our DNA and forensic services are used and trusted by government departments and police forces across the UK.

Visit our website

Cellmark Forensic Services

Legal DNA, Hair Drug and Alcohol Testing

Cellmark provides Court approved DNA testing and forensic quality Hair Drug testing & Alcohol testing to members of the public, Local Authority Children's Services teams, government departments and the legal profession.

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.

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Legal DNA and Hair Drug and Alcohol testing