The co-founder of Microsoft, tech magnate, entrepreneur, philanthropist, programmer, Bill Gates has a solid profile that makes him the richest individual, his worth marked $85.9 billion. Also the founder of Bill & Melinda Gates Foundation, Gates has made strides in every sphere he has touched. He stepped down as CEO of Microsoft in 2000 and as Chairman in 2008. Currently, he works full-time at the Bill & Melinda Gates Foundation and is the technology adviser to the current CEO Satya Nadella.