Comprised of more than 1,000 companies, the sector's companies and researchers focus on innovations, product and service delivery in biotechnology, medical devices, diagnostics and certain analytical laboratory technologies. Integral to the innovations and developments of these companies are the area's universities and academic research institutions including UCSD, SDSU, The Salk Institute, The Scripps Research Institute, Sanford Burnham Cancer Institute, La Jolla Institute of Allergy and Immunology and many additional research organizations.