Starwood Property Trust Inc is a real estate investment trust principally engaged in originating, acquiring, and managing commercial mortgage loans, commercial mortgage-backed securities, and other real estate investments in the U.S., Australia, and Europe. The company has four reportable business segments: Commercial and Residential Lending, Infrastructure Lending, Property, and Investing and Servicing. The majority of its revenue is generated from the Commercial and Residential Lending segment, which engages mainly in originating, acquiring, financing, and managing commercial first mortgages, non-agency residential mortgages (residential loans), commercial mortgage-backed securities (CMBS), residential mortgage-backed securities (RMBS), and other real estate and related debt investments.