Realty Income Corporation is a real estate investment trust. The Company is engaged in acquiring and managing freestanding commercial properties that generate rental revenue under long-term net lease agreements with its commercial clients. It is engaged in a single business activity, which is the leasing of property to clients, generally on a net basis. That business activity spans various geographic boundaries and includes property types and clients engaged in various industries. The Company owns or holds interests in approximately 15,621 properties located in all 50 United States (U.S.) states, the United Kingdom, France, Germany, Ireland, Italy, Portugal, and Spain with clients doing business in 89 industries. Its property types include retail, industrial, gaming and others, such as agriculture and office. Its primary industry concentrations include grocery stores, convenience stores, dollar stores, drug stores, home improvement, restaurants-quick service and others.