Mohammed Sharaf is the chief executive officer of DP World, the third largest port operator in the world. He has served as group chief executive officer since 2005 and as a director of the company since May 2007. Headquartered in Dubai, DP World has a portfolio of more than 65 marine terminals across six continents, including new developments underway in India, Africa, Europe, South America, and the Middle East. Container handling is the company's core business and generates more than three quarters of its revenue. DP World has 28,000 employees worldwide.