American entrepreneur, venture capital investor, and software engineer

Marc Andreessen is an American entrepreneur, venture capital investor, and software engineer.

Co-Founder and Partner of Andreessen Horowitz

The 'future of IT' executive roundtable moderated by technology futurist Paul Saffo; shown here with panellists Marc Andreessen, Co-Founder and Partner of Andreessen Horowitz; Andy Bechtolsheim, Co-Founder and Chief Development Officer of Arista Networks; and Graeme Hay, Head of Architecture and Infrastructure for Credit Suisse; Pat Gelsinger, CEO of VMware.

an entrepreneur, investor and software engineer best known as co-author of Mosaic, the first widely used Web browser

Marc Andreessen is an entrepreneur, investor and software engineer best known as co-author of Mosaic, the first widely used Web browser.

the co-founder

Marc Andreessen (co-founder of A16Z) coined the phrase ‘software will eat the world,’

an innovator and creator, one of the few pioneers in a software category used by more than a billion people and one of the few to establish multiple billion-dollar companies

Marc Andreessen is an innovator and creator, one of the few pioneers in a software category used by more than a billion people and one of the few to establish multiple billion-dollar companies.

Web pioneer and Netscape founder

Web pioneer and Netscape founder-turned-investor Marc Andreessen, who owns 3.6 million shares in Facebook, gave $30,800 to the National Republican Senatorial Committee in 2011, as well as big donations to the campaigns of Romney and Utah Senator Orrin Hatch, and $50,000 to