Proteome Sciences Plc is a protein biomarker company specialising in proteomics and peptidomics services and applications. It delivers content for personalized medicine through three areas, which include services, biomarkers and reagents. The PS Biomarker Services is a modular biomarker outsourcing solution to the pharmaceutical, biotechnology and diagnostics industries. The Biomarkers is a broad selection of proprietary protein biomarkers across a range of key human diseases. The Reagents provides a range of novel isobaric and isotopic under the brand name, Tandem Mass Tag. The company was founded on December 10, 1993 and is headquartered in Cobham, the United Kingdom.