San Francisco-based Shorenstein Properties LLC is one of the oldest and most successful private real estate investment companies active throughout the United States in the acquisition, development, ownership and management of office and mixed-use properties. Since its beginning in 1924, the company has evolved from a regional real estate operating company to an active national investor and manager of commingled institutional capital. Since 1992, Shorenstein has sponsored eight closed-end real estate investment funds. Shorenstein's substantial co-investment, integrated investment and operating strategy and strong performance have positioned the company as an experienced leader in the value-added arena.