Steve Ballmer is the co-founder of Ballmer Group and owner of the Los Angeles Clippers. Ballmer retired as chief executive officer of Microsoft in 2014 after leading the company for nearly 14 years. He remains a significant investor.

Through philanthropy and civic activism, Ballmer Group strengthens promising and proven approaches that increase economic mobility for children and families in the U.S. Ballmer also leads USAFacts, a project seeking to improve transparency in government, including disclosing taxes and borrowings raised, money allocated and spent, and outcomes achieved, much as corporations do through their 10-K reports.

Ballmer became Microsoft’s CEO in 2000, having served for 20 years in roles as president, senior vice president of sales and support, senior vice president of systems software, and vice president of marketing. He was the company’s first business manager. During his tenure Microsoft grew to almost $80 billion in revenue and was the third most profitable company in the U.S.