VSP is a non-profit healthcare insurance provider that was founded in 1955 in Oakland, California. It is the largest vision insurance provider in the United States, serving over 60 million members (in both the U.S. and Canada). The company has its corporate headquarters in Rancho Cordova, California. Enrollment periods are offered year round, and there are thousands of doctors that accept VSP plans. Use the links provided on this page to learn how to get a free rate quote, as well as how to access your online account if you’re a current policyholder.