Marc Andreessen is an American businessman, venture capitalist, and former software engineer. He is a co-founder and general partner of Andreessen Horowitz, a Silicon Valley venture capital firm. Andreessen's net worth is estimated at $1.9 billion as of January 2025.
Andreessen is recognized as the co-author of Mosaic, the first web browser capable of displaying inline images, which was released in 1993. This development significantly increased web traffic and the number of internet users.