Sierra Biomedical

Sierra Biomedical was a leading contract research organization (CRO) that specialized in preclinical toxicology and safety assessment services, with a particular expertise in non-human primate (NHP) studies. Founded in 1992 in Sparks, Nevada, the company played a pivotal role in supporting the development of complex biologics and small molecules for the burgeoning biotechnology and pharmaceutical industries. In 1999, Sierra Biomedical was acquired by Charles River Laboratories for approximately $23.3 million, a strategic move that significantly expanded Charles River's preclinical service capabilities. The company's operations were eventually integrated into Charles River's state-of-the-art facility in Reno, Nevada, which continues to provide comprehensive safety assessment and discovery support services to global clients.