As of July 11, 2026, no new social media or news activity has been recorded for Marc Andreessen. Marc Lowell Andreessen ( an-DREE-sən; born July 9, 1971) is an American businessman, venture capitalist, and former software engineer. He is the co-author of Mosaic, the first web browser to display inline images; co-founder of Netscape; and co-founder and general partner of Silicon Valley venture capital firm Andreessen Horowitz. He co-founded and later sold the software company Opsware to Hewlett-Packard; he also co-founded Ning, a company that provides a platform for social networking website StarFeed checks for new updates every few minutes. Use the day-by-day view above to see activity from other dates.
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