Ma is the founder and CEO of Tencent Holdings, China’s largest publicly traded Internet company measured by market capitalization. Ma tops the ranks of China’s wealthiest Internet enterpreneuers this year on the strength of Tencent’s share price, which has doubled in the past year. The company’s main website qq.com regularly stands among the world’s 10 most popular. A big star of the past year: its WeChat mobile communication service, which has attracted more than 270 million users. Chief technology officer Zhang Zhidong is also a billionaire. Tencent is a repeat member of the 2013 Forbes Asia Fab 50 list of the region’s best big companies.