Bill Joy

Bill Joy

Bill Joy is a Partner Emeritus at Kleiner Perkins Caufield & Byers. Since joining KPCB in 2005, Bill helped develop KPCB’s strategy of funding game-changing technologies that broadly address the twin problems of climate change and sustainability. Bill worked on ventures in areas such as wind, solar and thermoelectric power generation, low-cost electrical energy storage, renewable fuels and green chemicals from non-fuel sources, low-embodied-energy materials and energy-efficient electronics.

Previously, Bill was a founder and chief scientist at Sun Microsystems, a KPCB III/IV portfolio company. While at Sun, Bill was a key designer involved with a number of Sun technologies, including the Solaris operating system, the SPARC microprocessor architecture and several of its implementations, and the Java programming language. In 1995, he installed the first city-wide WiFi network in Aspen, Colorado, where his research lab was located. As an inventor, Bill is named on more than 40 patents. Before co-founding Sun, he designed and wrote Berkeley UNIX, the first open source operating system with built-in TCP/IP, making it the backbone of the Internet.

Bill holds a bachelor’s degree in electrical engineering from the University of Michigan, a master’s degree in computer science from the University of California, Berkeley, and a Ph.D. in engineering, honoris causa, from the University of Michigan. Bill is a member of the National Academy of Engineering and the American Academy of Arts and Sciences, and he is a trustee of the Aspen Institute. Bill’s many industry contributions were recognized in a FORTUNE magazine cover story that called him the “Edison of the Internet.”

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