As of 2026, Ben Horowitz has an estimated net worth of anywhere from just under $1 billion to about $3.5 billion. Forbes does not count him as a billionaire, while several finance profiles put him near $1.5 billion. His money comes from the $1.6 billion Opsware sale and his share of Andreessen Horowitz.
| Quick facts | Details |
|---|---|
| Net worth | Under $1 billion to about $3.5 billion (several profiles cite about $1.5 billion) |
| Full name | Benjamin Abraham Horowitz |
| Born | 1966 (most profiles list June 13, 1966) |
| Age | 60 |
| Birthplace | London, England |
| Raised in | Berkeley, California, United States |
| Source of wealth | Andreessen Horowitz (a16z), the Opsware sale, startup stakes, books |
| Known for | Co-founding Loudcloud, Opsware and Andreessen Horowitz |
| Spouse | Felicia Wiley Horowitz (married 1988) |
| Children | Three |
Who Is Ben Horowitz
Ben Horowitz is an American tech founder, venture capitalist and author. He is best known as the co-founder of Andreessen Horowitz, the Silicon Valley venture firm most people call a16z. He runs it with his long-time partner Marc Andreessen.
Before he became an investor, he was a CEO who nearly lost his company several times. He turned Loudcloud into the software firm Opsware and sold it to Hewlett-Packard for $1.6 billion. He later wrote about those hard years in his bestselling book The Hard Thing About Hard Things.
Ben Horowitz Net Worth
Estimates for Ben Horowitz’s net worth run from just under $1 billion to about $3.5 billion. Forbes, which tracks billionaires closely, does not count him as one, even though it lists his partner Marc Andreessen at about $1.9 billion. Several finance and investor profiles put Horowitz at about $1.5 billion.
Older estimates went as high as $3.5 billion, and this page used that number in the past. We now show the full range, because he has never shared his finances and most of his wealth sits in private assets. The honest answer is that he is worth hundreds of millions at the very least, and possibly a few billion.
Why The Estimates Are So Far Apart
Most of his money is not in public stock that anyone can price each day. It is tied up in a16z funds, in carried interest that is paid only when startups are sold or go public, and in private company shares. These assets are valued from the last funding round, which can be months old.
Some trackers also count paper gains in hot startups at full value, while others apply a discount. A big exit, such as an IPO from a large a16z holding, could push his real net worth up fast. A market slump could pull it down just as quickly.
Net Worth Estimates At A Glance
| Source | Estimate | What it means |
|---|---|---|
| Forbes | Not on its billionaires list | Forbes believes he is worth less than $1 billion |
| Finance and investor profiles | About $1.5 billion | The most common current figure |
| Older online estimates | $3.5 billion to $3.6 billion | Likely counts private stakes at full value |
| Our range | Under $1 billion to about $3.5 billion | Covers every credible estimate |
Early Life And Education
Benjamin Abraham Horowitz was born in London, England, in 1966. Most profiles give his birthday as June 13, although a few list January 13. He grew up in Berkeley, California, as the son of the writer and political activist David Horowitz and Elissa Krauthamer.
He went to Berkeley High School before heading east for college. His great-grandparents were Jewish immigrants who came to the United States from the Russian Empire.
Horowitz earned a bachelor’s degree in computer science from Columbia University in 1988. He then completed a master’s degree in computer science at the University of California, Los Angeles, in 1990. The same year he started work as an engineer at Silicon Graphics.
Career Highlights And Milestones
His career has three clear stages. First he was a product leader at Netscape and AOL, then a founder and CEO, and finally a venture capitalist. Each stage added to the wealth he has today.
Netscape And AOL
In 1995, Horowitz joined Marc Andreessen at Netscape as a product manager. He later ran the company’s directory and security products as a vice president. When AOL bought Netscape in 1998, he became vice president of AOL’s e-commerce division.
Loudcloud And Opsware
In 1999, Horowitz co-founded Loudcloud with Andreessen, Tim Howes and In Sik Rhee. The company hosted websites and apps for large customers such as Ford, Nike, News Corporation and the US Army. He took it public in 2001, just as the dot-com crash hit.
The stock fell to about 35 cents a share, and the company came close to running out of money. In 2002, he sold the hosting business to EDS for $63.5 million and turned what was left into Opsware, a software company. He grew Opsware to more than $100 million in yearly revenue.
In 2007, Hewlett-Packard bought Opsware for $1.6 billion in cash, at $14.25 a share. Horowitz stayed at HP for about a year to run part of its software business. That sale gave him the money and the name to start his own venture firm.
Andreessen Horowitz
In July 2009, Horowitz and Andreessen launched Andreessen Horowitz with a first fund of $300 million. Within three years the firm managed about $2.7 billion. Its big idea was to help founders with recruiting, sales and marketing, not just give them money.
Today a16z is one of the largest venture firms in the world. Reports put its assets under management at more than $90 billion. Its latest round of fundraising brought in over $15 billion, which Horowitz said was more than 18% of all US venture money raised the year before.
Income Sources And Assets
Horowitz does not draw most of his wealth from a salary. He earns from the business of running a large venture firm and from the stakes he holds himself. Here are the main streams.
Fees And Carried Interest
Venture firms usually charge an annual management fee of about 2% of the money they run. They also keep a share of the profits, often around 20%, which is called carried interest. As a founding general partner, Horowitz shares in both at a16z.
With tens of billions of dollars under management, even a small slice of those fees is a large yearly income. Carried interest is paid only when portfolio companies are sold or go public. That is why his wealth can jump when a big a16z bet has an exit.
Personal Stakes In Startups
Forbes credits Horowitz with backing companies such as Skype, Lyft, Medium and Okta. He led a $250 million investment in Databricks when it was valued at $2.75 billion, and he sits on its board. Forbes now puts Databricks at about $134 billion, so that early bet has grown many times over.
The firm has also backed well-known names such as Coinbase, Airbnb, GitHub and Instagram over the years. Not every a16z win belongs to Horowitz personally. Still, as a founding partner, he benefits from the firm’s best results.
Books And Speaking
His first book, The Hard Thing About Hard Things, came out in 2014 and became a New York Times bestseller. His second, What You Do Is Who You Are, came out in 2019 and focuses on company culture. Book royalties and talks add to his income, but they are small next to his venture earnings.
Opsware Proceeds
The Opsware sale was his first big payday. He was the CEO and a co-founder, so he held a meaningful stake when HP paid $1.6 billion in cash. The exact amount he received was never made public.
Business Ventures And Latest Moves
Horowitz is still very active at a16z, and the firm keeps growing into new areas. These recent moves show where his future wealth may come from.
- The Machine Age Fund: a16z raised $1.1 billion to invest in AI hardware, chips, data centers and robotics.
- The Horowitz Andreessen Academy: a new two-year program the firm launched as an AI-focused alternative to college.
- a16z Japan: the firm opened an office in Tokyo, led by Hitoshi Yoshida as its head of Japan.
- Atoms: Horowitz joined the board of Atoms, the new company from Uber co-founder Travis Kalanick.
- Securing America’s Infrastructure Foundation: a new nonprofit, started by a16z, that gives free AI-powered cyber defense to small cities, schools and rural hospitals.
He also backs a long list of AI startups through the firm, including Cognition, which recently raised over $2 billion in a round led in part by a16z. These deals could become a major part of his fortune if the companies keep growing.
Philanthropy And Personal Life
Horowitz has been married to Felicia Wiley Horowitz since 1988, and they have three adult children. The couple moved from Atherton, California, to Las Vegas, Nevada. Felicia runs the Horowitz Family Foundation, which handles much of their giving.
Together they co-founded the Paid in Full Foundation, which gives grants and awards to the early pioneers of hip-hop. Horowitz is a lifelong rap fan and often quotes rap lyrics in his books. Rapper and investor Nas has spoken with him about the foundation’s work.
The couple has also given millions of dollars to the Las Vegas police, including money for drones and a fleet of Tesla Cybertrucks. In politics, he has given to groups backing Donald Trump, including $3 million to the pro-Trump super PAC MAGA Inc. During the last presidential race, he also said he would give to groups backing Kamala Harris, citing a long friendship.
Awards And Achievements
Horowitz is a regular on the Forbes Midas List of the world’s top venture investors. On the latest list, he ranked 27th, with Databricks named as his standout deal. The ranking is based on the returns of the deals he has led.
Both of his books were New York Times bestsellers, and The Hard Thing About Hard Things is still widely read by founders. He is also known for turning Opsware around after its stock fell below a dollar, then selling it for $1.6 billion.
Horowitz posts on X under the official handle @bhorowitz, where he has about 767,000 followers. He mostly shares a16z news, new investments, hip-hop and his views on tech policy. He also writes longer essays on the a16z website.
In this recent post from his official X account, he explains why a16z raised $1.1 billion for its new Machine Age Fund. It shows how he sees AI hardware as the next big build-out.
These two older posts from the same account were part of the original article. We have kept them here as embeds.
Ben Horowitz In Videos
In this interview, Horowitz explains how he and his partners judge a startup before they invest. It is a useful look at the thinking behind his biggest wins.
Lessons Or Key Takeaways
His story offers some clear lessons for founders and investors. Here are five that stand out.
- Survive the hard times: Loudcloud nearly failed after its IPO, but he changed the business and later sold it for $1.6 billion.
- Sell what is not working: selling the hosting arm to EDS gave Opsware the time and cash it needed.
- Build a firm, not just a fund: a16z grew by giving founders real help with hiring and sales.
- Bet early and stay patient: his early Databricks investment shows how venture wealth can grow over many years.
- Culture is what you do: his second book argues that a company’s real culture comes from daily actions, not slogans.
If you like stories of tech investors, see our guides to Joe Lonsdale of 8VC and early Apple marketer Guy Kawasaki. For founders who built huge companies of their own, read about Jack Ma and Gary Vaynerchuk.
Frequently Asked Questions
What is Ben Horowitz’s net worth?
Ben Horowitz’s net worth is estimated at anywhere from just under $1 billion to about $3.5 billion. Forbes does not count him as a billionaire, while several finance profiles put him near $1.5 billion.
Is Ben Horowitz a billionaire?
It depends on who you ask. Forbes does not include him on its billionaires list, but other profiles estimate his wealth at $1.5 billion or more, mainly because they value his private stakes higher.
How did Ben Horowitz make his money?
He made his first fortune when Hewlett-Packard bought Opsware for $1.6 billion in cash. Since then, most of his wealth has come from fees, carried interest and personal stakes at Andreessen Horowitz.
What does Andreessen Horowitz manage?
Reports put a16z’s assets under management at more than $90 billion. Its latest fundraising brought in over $15 billion across funds for AI, apps, infrastructure, biotech, defense and growth-stage companies.
Is Ben Horowitz richer than Marc Andreessen?
Probably not. Forbes lists Marc Andreessen at about $1.9 billion but does not list Horowitz as a billionaire, and it says Andreessen’s biggest win was an early seed investment in Facebook.
Who is Ben Horowitz’s wife?
His wife is Felicia Wiley Horowitz, and they married in 1988. She leads the Horowitz Family Foundation, and the couple has three adult children.
What books has Ben Horowitz written?
He wrote The Hard Thing About Hard Things, a guide to running a startup through a crisis. His second book, What You Do Is Who You Are, explains how to build company culture.
Conclusion
Ben Horowitz’s net worth sits somewhere between just under $1 billion and about $3.5 billion. The wide range comes from how hard it is to value private venture stakes, and Forbes does not count him as a billionaire. What is clear is that the Opsware sale and Andreessen Horowitz made him one of the most powerful investors in tech.
His wealth is still growing through new funds, AI bets and a16z’s push into Japan and new areas. For more profiles of business builders, read our guide to Joe Lonsdale’s net worth and his path from Palantir to 8VC.
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