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.

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 22, 2025 · Marc Andreessen (born July 9, 1971, Cedar Falls, Iowa, U.S.) is an American-born software engineer who played a key role in creating the Web browser Mosaic and who cofounded Netscape Communications Corporation.

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. Marc Andreessen’s …

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...

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

Jun 28, 2024 · Click to read Marc Andreessen Substack, a Substack publication with tens of thousands of subscribers.

Nov 1, 1999 · When America Online bought Netscape in 1998, Marc Andreessen became CTO. In September, after 7 months guiding a company with as many subscribers as the combined population of Denmark and...

Sep 7, 2023 · Marc Andreessen has called his shot before. In 2011, the billionaire venture capitalist penned a blog post titled “Why Software Is Eating the World,” which helped usher in a digital-first era...

Jun 22, 2022 · Marc Andreessen arrived in Silicon Valley 28 years ago, fresh from the University of Illinois, where he and a colleague developed NCSA Mosaic, the graphic web browser that opened the world’s eyes to the potential of the internet.