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{{Infobox person
| name = Ben Horowitz
| image = Ben_Horowitz_2013.jpg
| image_size = 300px
| caption = Horowitz at a16z event 2019
| birth_name = Benjamin Aaron Horowitz
| birth_date = {{Birth date and age|1966|6|13}}
| birth_place = [[London]], [[England]], U.K.
| nationality = {{Flagicon|USA}} American
| education = [[Columbia University]] (BA Computer Science)<br>[[UCLA]] (MS Computer Science)
| occupation = Venture capitalist, author, entrepreneur
| title = Co-founder & General Partner, [[Andreessen Horowitz]]
| years_active = 1990-present
| spouse = Felicia Wiley Horowitz (m. 1988)
| children = 3
| networth = $700 million - $1 billion (estimated)
| known_for = Co-founding [[Andreessen Horowitz]], ''The Hard Thing About Hard Things''
| awards = Forbes Midas List
}}

'''Benjamin Aaron Horowitz''' (born June 13, 1966) is an American entrepreneur, venture capitalist, and author.<ref name="forbes">{{cite web |url=https://www.forbes.com/profile/-en-orowitz/ |title=Ben Horowitz |publisher=Forbes |access-date=December 2025}}</ref> He co-founded the venture capital firm [[Andreessen Horowitz]] (a16z) with [[Marc Andreessen]] in 2009. Before becoming a venture capitalist, Horowitz co-founded and served as CEO of [[Opsware]] (formerly Loudcloud), which he sold to [[Hewlett-Packard]] for $1.6 billion in 2007. His book ''The Hard Thing About Hard Things'' became a seminal guide for technology entrepreneurs navigating the challenges of building companies.

== Early Life and Education ==

=== Family Background ===
Horowitz was born in [[London]], England, to American parents. His father, David Horowitz, was a prominent left-wing activist and writer who later became a conservative commentator - a political journey that influenced Ben's own thinking about ideology and pragmatism.

The family moved to [[Berkeley, California]], where Horowitz grew up amid the politically charged atmosphere of the 1970s.

=== Education ===
Horowitz earned a Bachelor of Arts degree in [[Computer Science]] from [[Columbia University]]. He later earned a Master of Science in Computer Science from [[UCLA]].

== Personal Life ==

=== Family ===
Horowitz married Felicia Wiley, an African-American woman, in 1988. The interracial marriage influenced his perspectives on race, culture, and business. The couple has three children and resides in the San Francisco Bay Area.

=== Hip-Hop Influence ===
Horowitz is an avid [[hip-hop]] fan who frequently references rap lyrics in his blog posts and public speeches. His book ''What You Do Is Who You Are'' draws management lessons from figures including [[Toussaint Louverture]], [[samurai]] warriors, and hip-hop artists like [[Ice Cube]].

He has stated that hip-hop's emphasis on authenticity, struggle, and creative expression resonates with entrepreneurship.

== Career ==

=== Silicon Graphics (1990-1995) ===
After UCLA, Horowitz joined [[Silicon Graphics]] (SGI) as an engineer, working on networking and server products during SGI's peak years.

=== Netscape (1995-1999) ===
In 1995, Horowitz joined [[Netscape Communications]] as a product manager, where he first met [[Marc Andreessen]]. At Netscape, he rose to become Vice President and General Manager of the Enterprise product line.

When [[AOL]] acquired Netscape in 1999, Horowitz led the integration of Netscape's enterprise products into the new AOL/Netscape.

=== Loudcloud/Opsware (1999-2007) ===

==== Founding ====
In 1999, Horowitz co-founded '''Loudcloud''' with Marc Andreessen, Tim Howes, and In Sik Rhee. The company aimed to provide "cloud computing" infrastructure - a concept ahead of its time.

==== Dot-Com Crash ====
Loudcloud went public in March 2001, just as the dot-com bubble collapsed. The company faced existential crisis:
* Revenue plummeted as customers went bankrupt
* The stock fell from $6 to below $1
* Horowitz had to lay off hundreds of employees

==== The Pivot ====
In 2002, Horowitz made a bold pivot: selling Loudcloud's managed services business to [[EDS]] for $63.5 million and transforming the remaining company into '''Opsware''', an enterprise software company selling data center automation software.

The transformation required rebuilding the entire business, product, and team.

==== Sale to HP ====
Over the next five years, Horowitz rebuilt Opsware into a successful enterprise software company. In 2007, [[Hewlett-Packard]] acquired Opsware for $1.6 billion - a remarkable turnaround from near-bankruptcy.

=== Andreessen Horowitz (2009-Present) ===

==== Founding ====
In July 2009, Horowitz and Marc Andreessen founded [[Andreessen Horowitz]] (commonly known as "a16z"). The firm launched with $300 million, one of the largest first-time funds ever.

==== The a16z Model ====
Andreessen Horowitz pioneered a new venture capital model:
* '''Large support teams''': Marketing, recruiting, corporate development assistance for portfolio companies
* '''Media presence''': Active blogging, podcasting, and public commentary
* '''Founder-friendly''': Strong pro-founder orientation
* '''Multiple funds''': Growth, crypto, bio, cultural leadership

==== Notable Investments ====
Horowitz has led or co-led investments in:
* '''Facebook''' (early investment)
* '''Airbnb'''
* '''Lyft'''
* '''Slack'''
* '''Coinbase'''
* '''GitHub'''
* '''Oculus VR'''
* '''Pinterest'''
* '''Instacart'''
* '''Stripe'''
* '''Roblox'''

==== Crypto Focus ====
Horowitz has been particularly bullish on cryptocurrency and Web3, leading a16z's crypto fund that has invested over $7 billion in blockchain companies.

==== Current Role ====
Horowitz remains General Partner at a16z, with the firm now managing over $35 billion across funds.

== Writing and Thought Leadership ==

=== Blog ===
Horowitz's blog became essential reading for entrepreneurs, featuring candid posts on:
* Firing executives
* Company culture
* CEO psychology
* Technical debt

=== Books ===

==== ''The Hard Thing About Hard Things'' (2014) ====
Horowitz's first book, ''The Hard Thing About Hard Things: Building a Business When There Are No Easy Answers'', became a bestseller and one of the most influential business books of the 2010s.

Unlike typical business books focusing on success, it addressed:
* Firing your friend
* Managing through layoffs
* The loneliness of CEO life
* Surviving near-death experiences

==== ''What You Do Is Who You Are'' (2019) ====
His second book examined organizational culture through unconventional case studies including:
* [[Toussaint Louverture]] and the Haitian Revolution
* [[Samurai]] culture
* [[Genghis Khan]]'s management techniques
* Prison gang culture

== Philosophy ==

=== "Peacetime CEO/Wartime CEO" ===
Horowitz introduced the concept of "peacetime" vs. "wartime" CEOs:
* '''Peacetime''': Expanding markets, reinforcing strengths, methodical growth
* '''Wartime''': Existential threats, decisive action, unconventional tactics

=== "The Struggle" ===
He frequently discusses "The Struggle" - the emotional toll of entrepreneurship - normalizing the psychological challenges that founders face.

=== Culture ===
Horowitz emphasizes that "culture is not a set of beliefs - it's a set of actions." He argues that what a company ''does'', not what it says, defines its culture.

== Controversies ==

=== a16z Political Activities ===
a16z has faced criticism for its active lobbying on cryptocurrency regulation and its political commentary, with some arguing venture capitalists should focus on investing rather than politics.

=== Web3 Skepticism ===
The firm's heavy investments in cryptocurrency have drawn skepticism, particularly during the 2022 crypto winter when many investments lost significant value.

== Awards and Recognition ==

* '''Forbes Midas List''': Multiple years
* '''Fortune 40 Under 40''': During Opsware years
* '''"Ben's Blog"''': Listed among most influential tech blogs

== Quotes ==

* "There's no recipe for really complicated, dynamic situations."
* "In good organizations, people can focus on their work. In bad organizations, people spend most of their time fighting organizational boundaries."
* "The most important thing is: Don't die."
* "Startup CEOs should not play the odds. When you're facing a zero-or-one outcome, you need to act decisively."

== See Also ==

* [[Andreessen Horowitz]]
* [[Marc Andreessen]]
* [[Opsware]]
* [[Venture capital]]
* [[The Hard Thing About Hard Things]]

== References ==
{{Reflist}}

* [https://a16z.com/author/ben-horowitz/ a16z - Ben Horowitz]
* [https://www.bhorowitz.com/ Ben Horowitz Blog]
* [https://www.forbes.com/profile/ben-horowitz/ Forbes Profile - Ben Horowitz]

[[Category:Chief executive officers]]
[[Category:American venture capitalists]]
[[Category:American technology executives]]
[[Category:Living people]]
[[Category:1966 births]]
[[Category:Columbia University alumni]]
[[Category:UCLA alumni]]
[[Category:Andreessen Horowitz people]]
[[Category:American non-fiction writers]]