BDO International is the fifth-largest accountancy network in the world, a worldwide professional services network of public accountancy firms, serving national and international clients. As at 2013, BDO has Member Firms in 138 countries, employed 55,000 workers in 1,204 offices throughout the world.
The Citi Open is a joint professional tennis tournament played on outdoor hard courts, and held annually in late July at the William H.G. FitzGerald Tennis Center in Rock Creek Park, Washington, D.C., United States. The Citi Open is part of the ATP World Tour 500 series on the Association of Tennis Professionals World Tour, and of the WTA International tournaments on the Women's Tennis Association Tour.