Charles River Laboratories International, Inc. is a company that offers contract research services, focusing on drug discovery, non-clinical development, and safety testing. It is divided into three segments: Research Models and Services, Discovery and Safety Assessment, and Manufacturing Solutions, offering a variety of services, including rodent research model strains, insourcing solutions, toxicology, pathology, and drug metabolism services. Founded in 1947, the company is based in Wilmington, Massachusetts, and operates both domestically and internationally.