Sid Espinosa

Espinosa has worked at the White House, was mayor of Palo Alto and now heads up philanthropic and community outreach in Silicon Valley for Microsoft as director of corporate citizenship at the company's Mountain View campus. Before joining Microsoft, he was director of global philanthropy for Hewlett-Packard (HPQ), where he oversaw the investment of hundreds of millions of dollars in nonprofits and schools in all 50 U.S. states and 60 countries around the world.