As CEO of Microsoft, Satya Nadella has transformed not only the business strategy, but also the culture of the fading desktop software behemoth into a relevant technology leader again. The company’s strategy now emphasizes cloud computing and collaboration, and its products are built with empathy for the user at the forefront. Since Satya has taken the helm, Microsoft has generated more than $400 billion in market value in four years. He is widely respected for his affability and collaborative style.