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General Information


University of Massachusetts, Amherst, MS 1989
Computer Science
Cornell University, BA 1987
Chemistry, Computer Science

Current Companies

Executive in Residence
Board Member

Former Companies

President, Windows Division
Senior Vice President, Windows and Windows Live Product Development
Senior Vice President, Office Product Development
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Financial Organizations

Board Partner

Web Presences


Photo Credit

Asa Mathat

Steven Sinofsky

Sinofsky currently serves as Board Partner with Andreessen Horowitz and as an Executive in Residence at Harvard Business School.

A respected technologist and business leader, Steven Sinofsky began his career at Microsoft in 1989. He started as a software design engineer in development tools. Working in product management, he grew to be one of the company’s senior executives on Microsoft Office overseeing six major releases of the full range of Office apps and servers. Most recently he served as President of the Windows division through 2012. In this role, he oversaw many of Microsoft’s largest products, including the development of the Windows operating system, as well as Windows Services such as, SkyDrive and Identity. He earned a BA in Computer Science from Cornell and an MS from the University of Massachusetts, Amherst.

Sinofsky frequently comments on products, development and management at his blog,, and on twitter, @stevesi.

Recent Milestones



    Former Windows Head Sinofsky Joins Andreessen Horowitz as Board Partner ( [edit]
    Welcoming Steven Sinofsky as a Box Advisor ( [edit]
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Last Edited 8/29/13

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