SourceBio International Limited, together with its subsidiaries, provides various laboratory services and products to clients in the healthcare, clinical, life science research, and biopharma industries in the United Kingdom, Europe, the United States, and internationally. It offers histopathology cancer screening and clinical diagnostic services; DNA sequencing services and precision medicine to pharmaceutical and biotechnology companies, academia, contract research organizations, and other research markets; shelf-life testing services and equipment; and COVID-19 antigen PCR testing services. The company also manufactures library clones, direct to consumer home test kits, and blood and tissue serological products; and provides employee testing solutions and venue testing. In addition, the company offers controlled environment storage services and diagnostic and genomic services and products. SourceBio International Limited was formerly known as Sherwood Holdings Limited and changed its name to SourceBio International Limited in October 2020. The company was founded in 1999 and is headquartered in Nottingham, United Kingdom.