Orion Office REIT Inc is a internally-managed REIT engaged in the ownership, acquisition, and management of a diversified portfolio of mission-critical and headquarters office buildings located in high quality suburban markets across the U.S. and leased on a single-tenant net lease basis to creditworthy clients. The portfolio of the company includes traditional office buildings, governmental offices, medical offices, laboratories, and others. The Company operates in one business segment: direct ownership and operation of commercial real estate.