Steve Ballmer

Steven Anthony Ballmer (born March 24, 1956) is an American business executive, philanthropist, and sports team owner, most notable for his long tenure at Microsoft Corporation, where he joined as the 30th employee in 1980 and later served as chief executive officer from 2000 to 2014. During his leadership, Microsoft expanded its dominance in enterprise software and office productivity tools, tripling annual revenue to over $86 billion by 2013, though his era drew criticism for the company's sluggish adaptation to mobile computing and cloud services, contributing to a stagnant stock price relative to peers. After stepping down, Ballmer purchased the Los Angeles Clippers NBA franchise for a then-record $2 billion in 2014, subsequently investing heavily in team facilities including a new arena. As of September 2025, his net worth exceeds $150 billion, primarily from Microsoft shares, making him one of the world's wealthiest individuals; he and his wife have donated over $5.7 billion to philanthropy via the Ballmer Group, focusing on economic mobility and education.