Marc Andreessen
- Net worth $2 billion
- Birthday July 9, 1971
- Status Married
- Country United States
- Source(-s) of wealth Entrepreneur, Investor, Venture Capitalist
How much is Marc Andreessen Worth? Marc Andreessen Net Worth in 2026
Marc Andreessen’s net worth is estimated at $2 billion as of October 2026. Marc Andreessen is a co-founder and general partner of Andreessen Horowitz (a16z) and a co-founder of Netscape. In July 2025 a16z led a record $2 billion seed round for Thinking Machines Lab.
| Net worth | $2 billion (October 2026 estimate) |
|---|---|
| Estimated annual income | Mostly his share of Andreessen Horowitz and its funds, rather than a salary |
| Born | July 9, 1971, Cedar Falls, Iowa (age 55) |
| Country | United States |
| Occupations | Venture capitalist, entrepreneur |
| Known for | Co-founder of Netscape and Andreessen Horowitz |
How much is Marc Andreessen worth in 2026?
Marc Andreessen’s net worth is estimated at $2 billion in October 2026. Andreessen’s wealth comes from Netscape, the sale of Loudcloud (Opsware), and his share of Andreessen Horowitz and its funds. Private fund interests are hard to value from outside, so estimates differ by source, with some near $1.9 billion. This figure is an approximation.
Marc Andreessen in 2026: what they’ve been up to
- July 2025: a16z led a record $2 billion seed round for Thinking Machines Lab, which valued the company at about $12 billion.
- 2023: The firm launched its American Dynamism fund focused on hard tech, defense and space.
- 2022: a16z raised a $4.5 billion crypto and blockchain fund, following a $2.2 billion crypto fund in 2021.
- Ongoing: He sits on the board of Meta.
How Marc Andreessen makes money
- Andreessen Horowitz: His share of the firm and its funds, likely through management fees and carried interest, is thought to be the main source of wealth.
- Netscape: His 2.6 million shares were reportedly worth about $287 million at the 1995 public offering.
- Loudcloud and Opsware: The company was sold to Hewlett-Packard for $1.6 billion in 2007.
- Early investments: Angel investments and board roles added to his holdings. Individual figures are not public.
Career timeline
- 1993: Co-creates the Mosaic web browser at the NCSA.
- 1994: Co-founds Mosaic Communications, renamed Netscape Communications.
- 1995: Netscape goes public.
- 1999: AOL acquires Netscape for $4.3 billion and he becomes its chief technology officer.
- 1999 to 2003: Co-founds Loudcloud, later renamed Opsware.
- 2007: Hewlett-Packard acquires Opsware for $1.6 billion.
- 2009: Co-founds Andreessen Horowitz with $300 million of initial capital.
- 2012: The firm reaches $2.7 billion under management across three funds.
- 2021 and 2022: Launches crypto funds of $2.2 billion and $4.5 billion.
- 2025: a16z leads the $2 billion seed round for Thinking Machines Lab.
Early life and background
Marc Andreessen was born on July 9, 1971, in Cedar Falls, Iowa. While working at the National Center for Supercomputing Applications in 1993, he co-created the Mosaic web browser with Eric Bina, which helped bring the web to a mass audience. He left in 1994 to co-found the company that became Netscape.
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Marc Andreessen net worth FAQ
What is Marc Andreessen’s net worth?
Marc Andreessen’s net worth is estimated at $2 billion as of October 2026. This is an approximation and estimates vary.
How does Marc Andreessen make money?
He earns money from his share of Andreessen Horowitz and its funds, plus past gains from Netscape and the sale of Opsware.
How old is Marc Andreessen?
Marc Andreessen was born on July 9, and is 55 years old as of October 2026.
Where is Marc Andreessen from?
Marc Andreessen was born in Cedar Falls, Iowa and is based in the United States.
What is Marc Andreessen doing now?
His firm a16z led a $2 billion seed round for Thinking Machines Lab in 2025, and it continues to raise large funds for artificial intelligence, crypto and defense technology.
How is Marc Andreessen’s net worth estimated?
The figure is based on public reporting, company valuations, and deal and earnings figures. It is approximate and changes as new information emerges.
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How we estimate net worth
Our estimates are based on public reporting, company valuations, and deal and earnings figures all compiled in an internal valuation model. They are approximate, and figures change over time as new information emerges.
Last updated: October 2026.