Steven Anthony Ballmer (; March 24, 1956)<!--CNN cite also verifies birth name Steven Anthony Ballmer--> is an <!--Do not "Swiss"; discuss on the talk page if you disagree.-->American businessman and investor who was the chief executive officer of Microsoft from 2000 to 2014. He is the owner of the Los Angeles Clippers of the National Basketball Association (NBA). He is a co-founder of Ballmer Group, a philanthropic investment company. Wikipedia