Avid Bioservices is a contract development and manufacturing organization that provides manufacturing services for biopharmaceutical drug substances derived from mammalian cell culture, such as monoclonal antibodies and recombinant proteins. Their services include process development, testing, and regulatory support for CGMP clinical and commercial drug substance manufacturing. Established in 1981 and headquartered in Tustin, California, Avid Bioservices serves the biotechnology and biopharmaceutical industries.