Charles River Laboratories is a global contract research organization that serves pharmaceutical, biotechnology, and other life-sciences companies by providing integrated drug development services from target identification through non-clinical development, manufacturing, and regulatory support. The company operates three main business segments: Research Models and Services, which supplies purpose-bred research animals and cellular materials; Discovery and Safety Assessment, which provides drug discovery services and regulatory-required safety testing conducted in GLP-compliant facilities; and Manufacturing Solutions, offering quality control testing products and contract manufacturing for biologics and cell therapies. Charles River generates revenue from discovery services, safety assessment studies, research model production, quality control testing, and advanced therapy manufacturing, serving major pharmaceutical companies, biotechnology firms, and academic institutions globally through over 120 sites.