Marc Lowell Andreessen (/ænˈdriːsən/ AN-dree-sen) (born July 9, 1971) is an American businessman and former software engineer. He is the co-author of Mosaic, the first widely used web browser with a graphical user interface; co-founder of Netscape; and co-founder and general partner of Silicon Valley venture capital firm Andreessen Horowitz.

Jan 22, 2025 · Marc Andreessen, American-born software engineer who played a key role in creating the Web browser Mosaic, a user-friendly browser application that integrated graphics and point-and-click simplicity, and who cofounded Netscape Communications Corporation.

Dec 14, 2024 · After famed investor Marc Andreessen met with government officials about the future of tech last May, he was “very scared” and described the meetings as “absolutely horrifying.” These meetings...

Oct 16, 2023 · We are told that technology is on the brink of ruining everything. But we are being lied to, and the truth is so much better. Marc Andreessen presents his techno-optimist vision for the future.

Marc Andreessen is a cofounder and general partner at the venture capital firm Andreessen Horowitz. He is an innovator and creator, one of the few to pioneer a software category used by more than a billion people and one of the few to establish multiple billion-dollar companies.

Jan 27, 2025 · Venture capitalist Marc Andreessen sees the release of R1 by a Chinese AI lab as comparable to the Soviet Union’s launch of the first satellite into orbit. David Paul Morris—Bloomberg/Getty Images

Mar 26, 2024 · In the pantheon of figures who shaped the internet revolution, few names loom as large as Marc Andreessen. As a pioneering software engineer, serial entrepreneur and prominent investor, Andreessen left an indelible mark on how we communicate, do business and access information online.

Marc Andreessen is one of the foremost entrepreneurs and financiers of his generation. He built a unicorn and a top VC fund. Here are 9 lessons for growing ventures.

May 11, 2015 · Marc Andreessen, the firm’s co-founder, fixed his gaze on Doshi as he disinfected his germless hands with a sanitizing wipe. Andreessen is forty-three years old and six feet five inches...

May 14, 2018 · Marc Andreessen (born 1972) has been one of the key players in making the Internet and World Wide Web accessible to the masses, thanks to his development of Netscape Navigator, a browser that integrates text, graphics, and sound.