Back to Directory
Last Updated: 09/06/2026
ATDBio
South East England
Founded 2005
Contract synthesis of custom and modified oligonucleotides
ATDBio is a UK-based contract oligonucleotide synthesis company specialising in chemically modified DNA and RNA oligonucleotides for therapeutic and diagnostic applications.
Its services span discovery through preclinical scale, encompassing antisense oligonucleotides, siRNA, aptamers, and diagnostic probes, with a broad range of backbone, sugar, and terminal modifications including LNA, phosphorothioate, and GalNAc conjugates.
Laboratories are ISO 9001 certified and based at the University of Southampton and Oxford Science Park.