Charles River Laboratories International, Inc. engages in providing products and services to help pharmaceutical and biotechnology companies. It operates through the following segments: Research Models and Services (RMS), Discovery and Safety Assessment (DSA), and Manufacturing Solutions. The Research Models and Services segment includes its insourcing solutions business and Charles River accelerator and development lab footprint. The Discovery and Safety Assessment segment offers regulatory-required safety testing of potential new drugs, vaccines, industrial and agricultural chemicals, consumer products, veterinary medicines, and medical devices. The Manufacturing Solutions segment focuses on microbial solutions and biologics solutions. The company was founded by Henry L. Foster in 1947 and is headquartered in Wilmington, MA.