Charles River Laboratories International, Inc. is a drug development company. It provides essential products and services to help pharmaceutical and biotechnology companies, government agencies and academic institutions around the globe accelerate their research and drug development efforts. Its Research Models and Services segment includes businesses that provide foundational tools that enable its clients to discover new molecules: Research Models and Research Model Services. Its Discovery and Safety Assessment (DSA) segment provides regulated and non-regulated DSA services to support the research, development, and regulatory-required safety testing of potential new drugs, including the in vitro, in vivo, and in silico studies, laboratory support services, and strategic non-clinical consulting and program management to support product development. Its Manufacturing Solutions segment includes Microbial Solutions and Biologics Solutions.