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Photo of Marc Andreessen

Photo: JD Lasica / CC BY 2.0 (source: Wikimedia Commons)

Marc Andreessen

American computer scientist

July 9, 1971 (age 55) · Cedar Falls, Iowa, United States

  • Iowa
  • computer scientist
  • entrepreneur
  • inventor

Marc Andreessen is a computer scientist, entrepreneur and inventor, born on July 9, 1971 in Cedar Falls, Iowa, United States. That puts Marc Andreessen at 55 years old in 2026. Schooling on record includes New Lisbon High School and University of Illinois Urbana-Champaign. Awards on record include Queen Elizabeth Prize for Engineering (2013), Internet Hall of Fame (2013), ACM Software System Award (1995) and 1 more. Notable works include Mosaic and Fairshake.

My Take

Marc Andreessen sits at the root of the web we take for granted. Co-authoring Mosaic, the browser that first put images beside text, then founding Netscape, he literally shaped how the internet looks. His pivot from engineer to venture capitalist at Andreessen Horowitz is a rare second act that arguably carries even more influence than the first. I respect the conviction behind his relentless techno-optimism, even when I want to argue with it. From small-town Iowa to the Internet Hall of Fame, he is one of the few people who genuinely rewired daily life for billions.

1. Profile

Name (English)
Marc Andreessen
Name (Japanese)
マーク・アンドリーセン
Reading
まーく・あんどりーせん
Born
July 9, 1971 (age 55)
Zodiac / Chinese zodiac
Cancer / Boar
Origin
Cedar Falls, Iowa, United States
Occupation
computer scientist / entrepreneur / inventor / blogger / programmer

2. Background

High school
New Lisbon High School
University
University of Illinois Urbana-Champaign

Awards & achievements

  • 2013 Queen Elizabeth Prize for Engineering
  • 2013 Internet Hall of Fame
  • 1995 ACM Software System Award
  • 1997 W. Wallace McDowell Award

3. Works & records

CategoryTitleRoleYear
Notable workMosaic
Notable workFairshake

5. About this entry

Tags

  • Iowa
  • computer scientist
  • entrepreneur
  • inventor
Last updated
2026-06-16

Facts are limited to publicly available information up to 2024; non-public or unconfirmed items are omitted. English text is machine-assisted (facts translated by Sonnet, "My Take" written by Opus 4.8). The Japanese page is the source of record.

Frequently asked questions

When was Marc Andreessen born?

Born July 9, 1971 (age 55).

Where is Marc Andreessen from?

Marc Andreessen is from Cedar Falls, Iowa, United States.

What does Marc Andreessen do?

Marc Andreessen works as computer scientist, entrepreneur, inventor, blogger, programmer.

What is Marc Andreessen known for?

Notable works include Mosaic, Fairshake.

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