We deliver high quality genetic and genomic testing for both NHS and research patients by combining the innovation and academic expertise of research scientists with the rigorous quality approach required in a clinical diagnostic service. Our clinical diagnostic facility is underpinned by world-class research, state of the art technology, scientific, bioinformatics and clinical expertise. This vision has enabled rapid implementation of exome, genome and targeted next generation sequencing to improve diagnosis of rare disease.

Our test repertoire includes >75 rare genetic disorders, a comprehensive range of tests for leukaemia and lymphomas, and a molecular oncology service to test solid tumours for mutations that predict response to targeted therapy.  There is close working with other pathology specialties through the Exeter Biomedical Diagnostic Hub established in 2013 to develop genomic diagnostic tests and skills across the pathology workforce.

Exeter is internationally acclaimed for its research into monogenic diabetes and hyperinsulinism. The genetics laboratory is co-located in the new RILD (Research, Innovation, Learning and Development) Centre with leading University of Exeter Medical School researchers in genetics, genomics and epigenetics.

A sample export service is provided for tests referred by centers within the peninsula that are not available in our laboratory. Samples will be sent to an accredited laboratory whenever possible, but some rare tests may only be available in non-accredited or research laboratories. Onward referral centres can be found through the following portals:, and To discuss where a test which is not performed in-house will be referred to please contact the laboratory.

Please use the menu bar on the right of this page to access details of the tests provided by the Molecular Genetics Laboratory and our contact details.


Some of the positive feedback we have received from clinical geneticists, diabetologists, endocrinologists, oncologists and physicians from labs across the UK and internationally (including Australia, Denmark, Iceland and South Africa):

“Your service is second to none, thank you”

“Thank you for such a comprehensive report”

“I am impressed by the level of service you provide! “

“Thank you so much for finishing this so quickly, I can’t tell you how helpful it is to have the results at this time”

“Once again, our team really appreciate the hard work of your team – you’ve all been amazing and it has really made a difference in this little boy’s care”

“Easily the best molecular lab in the country”

“Always happy to help and clear expertise in their subject.”

“Always a brilliant service – extremely helpful staff”

“Always very polite and helpful.”

“The Exeter molecular genetics laboratory is exemplary – one of the best in the UK”

“Thank you and all your staff for an exemplary service”

“Thank you everyone – what a remarkable service you run” 

“That’s really helpful – as ever. This is why I now send all my samples to Exeter!”

“Many thanks for providing this important information so rapidly”

“Thank you so much for the extremely fast and interesting results of our patient, also for the literature.”

“I’m very grateful for this result having been rushed through urgently so thanks to you all.”

“Thanks for your communication and the speed of this analysis.”

“Thank you for your prompt and helpful answer and advice!”

“Thanks so much again for brilliant service”