James Douglas Esinhart

Chiltern International, Inc. provides clinical research services. It offers clinical development, medical and scientific affairs, data and analysis, pharmacovigilance and strategic regulatory services. The firm serves biotech, pharmaceuticals, biosimilars and biologics and medical device and diagnostics industries. The company was founded in 1982 and is headquartered in Slough, the United Kingdom.

Chiltern International Group Ltd. operates as a holding company with interests in providing clinical development and other outsourced services to the pharmaceutical, medical device and biotechnology industries. The company was founded on May 23, 2006 and is headquartered in Edinburgh, the United Kingdom.

Charles River Laboratories, Inc. provides research models and laboratory animal support services. It offers quality research models and support services to the biomedical community. The company was founded in 1947 and is headquartered in Wilmington, MA.

Part of Charles River Laboratories International, Inc., PharmaResearch Corp is a company that provides pharmaceutical development and research services. The company is based in Wilmington, NC. The company was founded by James Douglas Esinhart. PharmaResearch was acquired by Inveresk Research Group, Inc., part of Charles River Laboratories International, Inc. from October 20, 2004 on July 29, 2003 for $37.10 million.