Protein Sciences Corporation (PSC) We are a privately held vaccine company located in Meriden, CT. We are dedicated to the development and commercialization of vaccines and biopharmaceuticals using its patented BEVS manufacturing platform. In addition to developing our own pipeline of proprietary vaccine candidates, PSC operates two additional business units; 1) a product development and contract manufacturing service whereby clients can access and leverage our manufacturing technology and regulatory experience 2) a line of Research Products for the scientific community.