2007 Fast Cities

TUCSON, Arizona

Population > 946,000

Leading indicator > Among the top 10 in the United States for job growth and high-tech-industry concentration

Fast companies > Raytheon Missile Systems; UniSource Energy; Universal Avionics

Welcome to "Optics Valley," home to 160 mostly small outfits, such as All Optronics and 4D Technology, focused on optical design and engineering, fiber-optic components, and precision optical fabrication. Life sciences, environmental technologies, and aerospace are booming too. The Arizona Center for Innovation is expanding its tech incubator and is eyeing a second near the University of Arizona.