Marc Andreessen Biography, Career, Education, Family, and Quotes

Marc Lowell Andreessen is an American entrepreneur, investor, and software engineer. He co-wrote the code making up the first widely used web browser Mosaic and also founded Netscape.

Marc Andreessen Biography

Marc Lowell Andreessen is an American entrepreneur, investor, and software engineer. He co-wrote the code making up the first widely used web browser Mosaic and also founded Netscape. He is also the co-founder and general partner of the Silicon Valley VC (venture capital) firm Andreessen Horowitz, now owned by Hewlett-Packard. He is also a co-founder of Ning, which provides a platform for social networking sites.

He currently sits at the board of directors of various firms like Facebook, eBay, and Hewlett-Packard Enterprise among others. He was also inducted, along with five others, in the World Wide Web Hall of Fame in 1994.

Marc Andreessen Age

He was born on the 9th of July 1971 in the city of Cedar Falls located in the Black Hawk County of Iowa in the United States. As of 2018, he is 47 years old.

Marc Andreessen Family

Marc Andreessen was born to Patricia (mother) and Lowell Andreessen (father), a worker at a seed company.

He is married to Laura Arrilaga, a philanthropist and author, and the daughter to the Silicon Valley real estate billionaire John Arrillaga. The couple formalized their marriage in 2006. Together, the couple bore one son, John Andreessen.

Marc Andreessen Career

He received his bachelor’s degree in computer science from the University of Illinois at Urbana Champaign. He then interned at the IBM in Austin Texas twice. Later, he worked at AIX graphics software development group and also at the National Center for Supercomputing Applications (NCSA) at the University of Illinois. Marc Andreessen, along with Eric Bina, a full-time salaried co-worker, worked on creating a versatile user-friendly web browser resulting in the Mosaic Web Browser.


He moved to California somewhere around 1993 to work at Enterprise Integration Technologies. In California, he met Jim Clark, founder of Silicon Graphics, who believed that the Mosaic browser had great commercial possibilities. Soon, the two collaborated to create Mosaic Communications Corporation in Mountain View, California. In the corporation, Marc served as the co-founder and head of technology. Sometime later, the company’s name was changed to Netscape Communications with the browser’s name being changed to Netscape Navigator because the University of Illinois was unhappy with the use of the Mosaic name.

Marc rose to prominence with the rise of Netscape’s IPO with a feature on the cover of the Time magazine along with other publications. Netscape was sold to AOL for 4.3 Billion dollars in 1999. He was, by chance, given the position of Chief Technology Officer upon the completion of the purchase. In that same year, he was placed as one of the top 100 innovators of the world under 35yrs by the MIT technology review.

Opsware (LoudCloud):

He then founded Opsware (Originally named LoudCloud) with Ben Horowitz, Tim Howes, and In Sik Rhee. The company provided computing, hosting and software services to consumer-facing internet and e-commerce companies. In 2003, Loudcloud sold it’s hosting business to EDS (Electronic Data Systems) and changed its name to Opsware and later, in 2007, sold again to Hewlett Packard for 1.6 billion dollars.

Andreessen Horowitz:

He partnered with Ben Horowitz and they invested separately in a number of start-ups (45 to be exact) including Twitter and Qik. They became well-known as super angel investors. They launched their own Silicon Valley venture-capital firm Andreessen Horowitz Silicon Valley venture-capital firm Andreessen Horowitz on the 6th of July 2009. The firm began with an initial capital of about 300 million and grew to about 2.7 billion within three years. Marc has portfolio holdings that include Facebook, Foursquare, GitHub, Pinterest, Twitter, and Honor, Inc.

In collaboration with other investors, Andreessen Horowitz acquired Skype for 2.75 Billion dollars on the 1st of September 2009. This investment was considered very risky but it finally paid off when Skype was acquired by Microsoft in an 8.5 billion dollar deal in 2011. They also made investments with Jawbone, the headset makers, in 2006. Andreessen Horowitz helped the Silicon Valley Attorney Ted Wang to create the first free standardized seed round financing documents, the Series Seed Documents.


Marc Andreessen joined the board of directors of eBay in 2008. From then on, he spent 6 years serving on the same board of directors. He resigned from the board due to the company’s decision to break off its online payments unit PayPal. His resignation was announced by him in October 2014.

Other Works:

He provides financial advice to the companies he invests in including Facebook and Zynga. He was even awarded the inaugural Queen Elizabeth Prize for Engineering in 2013. The third company he founded after Netscape and Loudcloud, was Ning where he was the co-founder and chairman. Ning was sold to Mode Media at a price of about 150 million dollars in September of 2011. After this, he joined Glam Media’s board of directors.

Apart from all of the above Marc Andreessen has done a number of other notable tasks. Some of them are serving on the board of Facebook, eBay, Hewlett Packard Enterprise, Kno, Stanford Hospital, Bump Technologies, Anki, Oculus VR, Dialpad, and TinyCo., He serves as an advisor to Asana and Neom (Where he is on the advisory board). He is a director at CollabNet. He is also known for being a strong proponent of Bitcoin and cryptocurrency seen by his various Bitcoin investments.

Marc Andreessen Photo

Marc Andreessen Net Worth

As of 2019, the total net worth estimate of 1.4 Billion dollars.

Marc Andreessen Quotes

  • Adaptability is key.
  • In the startup world, you’re either a genius or an idiot. You’re never just an ordinary guy trying to get through the day.
  • The smartphone revolution is under-hyped, more people have access to phones than access to running water. We’ve never had anything like this before since the beginning of the planet.
  • Any new technology tends to go through a 25-year adoption cycle.
  • More and more major businesses and industries are being run on software and delivered as online services – from movies to agriculture to national defense.

Marc Andreessen Twitter

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