The exact amount of people employed by Bill Gates is unknown and regularly changes. The Bill and Melinda Gates Foundation employ hundreds of people. Bill Gates is no longer the largest shareholder in the Microsoft company, so Microsoft employees cannot be claimed by him.
In 2008, Bill Gates stepped down from his role as Head of Microsoft and took on the role of Technology Advisor. That means the percentage of Microsoft's more than 128,000 employees that fall under the leadership of the Technology Advisor can be counted as Bill Gates's employees in addition to those of the Bill and Melinda Gates Foundation. Additionally, employees that Gates employs privately at his home or for personal services count among his staff.