Extra Space Storage Inc., a prominent, self-administered and self-managed real estate investment trust (REIT), is headquartered in Salt Lake City, Utah, and holds a distinguished place as a member of the S&P 500 index. As of September 30, 2020, its expansive portfolio encompassed 1,906 self-storage facilities, with operations spanning 40 U.S. states, Washington, D.C., and Puerto Rico.