The World's Billionaires 2015 The World's Billionaires 2015 The World's Billionaires 2015 edition was the 29th annual ranking of The World's Billionaires by "Forbes" magazine. The list estimated the net worth of the world's richest people. The new list was released online on March 2, 2015. As of 2015, Bill Gates had been placed at the top of this list 16 times. Bill Gates was again named the richest person in the world in "Forbes" Magazine's annual list of the world's billionaires. This is the 16th time that the founder of Microsoft has claimed the top spot. Carlos Slim, Mexican business magnate, came in
Carlos Slim to a running joke in the Mexican business scene where "there was nothing left to acquire in Mexico". He eyed towards investing the United States where he set up Telmex USA and also acquired a stake in Tracfone, a US cellular telephone company. At the same time, he established Carso Infraestructura y Construcción, S. A. (CICSA) as a construction and engineering company within Grupo Carso. During the same year, Slim had heart surgery and subsequently passed on much of the day-to-day involvement in the businesses to his children and their spouses. América Telecom, the holding company for América Móvil, was