Andreessen Horowitz - Wikipedia

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Wikipedia·en.wikipedia.org/wiki/Andreessen_Horowitz

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Good quality. Reputable source with community review or editorial standards, but less rigorous than peer-reviewed venues.

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Relevant to AI safety discussions primarily because a16z and its founders are prominent voices opposing AI regulation; understanding their institutional background provides context for industry debates on AI governance.

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Importance: 25/100wiki pagereference

Summary

Wikipedia overview of Andreessen Horowitz (a16z), a major American venture capital firm founded in 2009 by Marc Andreessen and Ben Horowitz. With $90 billion AUM, the firm is one of the largest VCs globally and is a significant investor in AI companies, crypto, and tech startups. The firm's investment decisions and public statements on AI development have made it an influential voice in debates about AI policy and governance.

Key Points

•Founded in 2009 by Marc Andreessen and Ben Horowitz, headquartered in Menlo Park, California with over $90 billion AUM.
•One of the most influential VC firms in AI and tech, investing across healthcare, crypto, fintech, enterprise software, and AI startups.
•Marc Andreessen has been a vocal proponent of accelerationist AI development, opposing many AI safety regulations.
•a16z's investment portfolio and public policy positions make it a key stakeholder in debates around AI governance and deployment.
•The firm has backed numerous AI companies, giving it significant influence over which AI capabilities receive major funding.

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# Andreessen Horowitz

Andreessen Horowitz

American venture capital firm

| [![](https://upload.wikimedia.org/wikipedia/commons/thumb/b/ba/Andreessen_Horowitz_new_logo.svg/500px-Andreessen_Horowitz_new_logo.svg.png)](https://en.wikipedia.org/wiki/File:Andreessen_Horowitz_new_logo.svg) |
| [Trade name](https://en.wikipedia.org/wiki/Trade_name "Trade name") | Andreessen Horowitz |
| Company type | [Private](https://en.wikipedia.org/wiki/Privately_held_company "Privately held company") |
| Industry | [Venture capital](https://en.wikipedia.org/wiki/Venture_capital "Venture capital") |
| Founded | July6, 2009;16 years ago(2009-07-06) |
| Founders | [Marc Andreessen](https://en.wikipedia.org/wiki/Marc_Andreessen "Marc Andreessen")<br>[Ben Horowitz](https://en.wikipedia.org/wiki/Ben_Horowitz "Ben Horowitz") |
| Headquarters | [Menlo Park, California](https://en.wikipedia.org/wiki/Menlo_Park,_California "Menlo Park, California")<br>, <br>U.S. |
| [AUM](https://en.wikipedia.org/wiki/Assets_under_management "Assets under management") | $90 billion (as of Jan 2026)[\[1\]](https://en.wikipedia.org/wiki/Andreessen_Horowitz#cite_note-1) |
| Number of employees | >500[\[2\]](https://en.wikipedia.org/wiki/Andreessen_Horowitz#cite_note-2)[\[3\]](https://en.wikipedia.org/wiki/Andreessen_Horowitz#cite_note-3)(2023) |
| Website | [a16z.com](https://a16z.com/) |

AH Capital Management, LLC

**Andreessen Horowitz** (also known as **a16z**) is an American privately-held [venture capital](https://en.wikipedia.org/wiki/Venture_capital "Venture capital") firm headquartered in [Menlo Park, California](https://en.wikipedia.org/wiki/Menlo_Park,_California "Menlo Park, California"), United States. It was founded in 2009 by [Marc Andreessen](https://en.wikipedia.org/wiki/Marc_Andreessen "Marc Andreessen") and [Ben Horowitz](https://en.wikipedia.org/wiki/Ben_Horowitz "Ben Horowitz").

Andreessen Horowitz invests in both early-stage [startups](https://en.wikipedia.org/wiki/Startup_company "Startup company") and established [growth companies](https://en.wikipedia.org/wiki/Growth_stock "Growth stock").[\[4\]](https://en.wikipedia.org/wiki/Andreessen_Horowitz#cite_note-TechCrunch_News2-4) Its investments span the healthcare, consumer, cryptocurrency, gaming, [fintech](https://en.wikipedia.org/wiki/Fintech "Fintech"), education, and enterprise software (including [cloud computing](https://en.wikipedia.org/wiki/Cloud_computing "Cloud computing"), security, and [software as a service](https://en.wikipedia.org/wiki/Software_as_a_service "Software as a service")) industries.[\[5\]](https://en.wikipedia.org/wiki/Andreessen_Horowitz#cite_note-ben-5)

As of July 2025, the company ranks first on the [list of venture capital firms](https://en.wikipedia.org/wiki/List_of_venture_capital_firms "List of venture capital firms") by [assets under management](https://en.wikipedia.org/wiki/Assets_under_management "Assets under management"), with US$46 billion.[\[6\]](https://en.wikipedia.org/wiki/An

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