Adelphi Research, a privately owned company, operates with headquarters in Doylestown, PA, USA, and near Manchester, UK. It is a subsidiary of Omnicom Health and part of Adelphi Group, an Omnicom Group Inc. company. The company functions as a global healthcare market insight consultancy, specializing in market research and navigating brand challenges, informing decisions, and supporting stakeholder action. With approximately 160 employees, Adelphi Research helps pharmaceutical and healthcare companies answer complex business questions related to brand success. It offers a multi-perspective approach by leveraging knowledge and talent from its sister companies, which include medical communications, real-world evidence, values, and outcomes businesses.