Boston Properties is a real estate investment trust (REIT) based in the United States. Founded in 1970, it focuses on developing, owning, and managing high-quality office and mixed-use properties in key markets, including Boston, San Francisco, New York City, and Washington, D.C.. The company is known for its commitment to sustainability and innovation in building design. As one of the largest publicly traded developers in the country, Boston Properties has a diverse portfolio that includes iconic skyscrapers and modern office spaces. The company aims to create vibrant environments that enhance the urban landscape while providing value to its tenants and investors.