Stellar Biotechnologies, Inc., a biotechnology company, engages in the aquaculture, research and development, manufacture, and commercialization of keyhole limpet hemocyanin (KLH) protein primarily in Europe, the United States, and Asia. KLH is an immune-stimulating protein used for generation of antibody and cell-mediated immune responses against disease indications, such as cancer, immune disorders, Alzheimer's, and inflammatory diseases, as well as used for therapeutic vaccine conjugation in immunotherapies. The company also offers in vitro diagnostic kits for preclinical use. It provides its products under the Stellar KLH brand name. The company serves multinational biotechnology and pharmaceutical companies, academic institutions, clinical research organizations, and research centers. Stellar Biotechnologies, Inc. is based in Port Hueneme, California.