Walker & Dunlop Inc is a United States-based commercial real estate finance company. It is principally engaged in originating, selling, and servicing a number of multifamily and other commercial real estate financing products that are sold under the programs of Freddie Mac, Fannie Mae, Ginnie Mae, and the Federal Housing Administration. The company is managed based on three reportable segments: Capital Markets (CM), Servicing & Asset Management (SAM), and Corporate. The company generates a majority of total revenue from gains from mortgage banking activities and servicing fees. It conducts business solely in the United States.