Boston Properties (NYSE: BXP) is the largest publicly traded developer, owner, and manager of Class A office properties in the United States, concentrated in six markets - Boston, Los Angeles, New York, San Francisco, Seattle, and Washington, DC. BXP is a fully integrated real estate company, organized as a real estate investment trust (REIT), that develops, manages, operates, acquires, and owns a diverse portfolio of primarily Class A office space. Including properties owned by unconsolidated joint ventures, BXP's portfolio totals 53.7 million square feet and 193 properties, including twelve properties under construction/redevelopment.