Marc Andreessen

Marc Andreessen
Andreessen in 2013
Born
Marc Lowell Andreessen

(1971-07-09) July 9, 1971
Cedar Falls, Iowa, U.S.
EducationUniversity of Illinois Urbana-Champaign (BS)
Occupations
Known for
  • Mosaic
  • Netscape
  • Opsware
  • Andreessen Horowitz
Spouse
Laura Arrillaga
(m. 2006)
Children1[1]
RelativesJohn Arrillaga (father-in-law)
Websitea16z.com/author/marc-andreessen

Marc Lowell Andreessen (/ænˈdrsən/ 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 websites. He is an inductee in the World Wide Web Hall of Fame. Andreessen's net worth is estimated at $1.9 billion as of January 2025.

  1. ^ Tad Friend (May 18, 2015). "TOMORROW'S ADVANCE MAN – Marc Andreessen's plan to win the future". Archived from the original on August 20, 2024. Retrieved February 20, 2020.