Andreessen Horowitz

Quick read

Andreessen Horowitz (a16z), a generalist venture capital firm, was founded in 2009 and is headquartered in Menlo Park, California. As of March 2026, it manages at least $90 billion in assets across stage-agnostic funds spanning AI, crypto, bio/health, fintech, defense, and consumer tech. In January 2026, it closed over $15 billion across five new funds — the largest single fundraise in its history — doubling down on AI infrastructure and national-interest investing.

Key facts

Founded

July 2009

Founders

Marc Andreessen, Ben Horowitz

Employees

789

Sectors

generalist, ai, crypto, fintech, healthcare, consumer, enterprise

Website

a16z.com

Investment thesis

a16z backs bold entrepreneurs building technology companies at any stage — seed through late-stage — across AI, crypto, fintech, bio/health, defense, and consumer, with a stated conviction that American technology leadership must prevail globally. The firm operates an extensive platform model (recruiting, marketing, technical services) to support portfolio companies beyond capital.

Recent activity

• Apr 2026product
  a16z Speedrun accelerator opened applications to founders worldwide, offering $500K upfront (total $1M) for early-stage companies. x.com
• Jan 2026fundraise
  Raised over $15 billion across five new funds: Growth ($6.75B), AI Infrastructure ($1.7B), Apps ($1.7B), American Dynamism ($1.176B), and Bio + Health ($700M) — capturing roughly 18% of all VC dollars raised at the time. reuters.com
• Jan 2026press
  Announced a partnership with Booz Allen Hamilton. cbinsights.com
• Jan 2026investment
  Participated in XBuild's $19 million Series A round alongside lead investor N47 and Rackhouse Ventures. x.com
• Dec 2025press
  a16z crypto division published its 'Big Ideas 2026' forecast, outlining 17 theses expected to shape crypto and related technologies in the coming year. x.com

Notable investments

• xAIGrowth2024en.wikipedia.org
• OpenAIGrowth2023cbinsights.com
• RevolutGrowth2024en.wikipedia.org
• CapitolisGrowth2024en.wikipedia.org
• UniswapUndisclosed2023en.wikipedia.org
• Dapper LabsUndisclosed2023en.wikipedia.org
• XBuildSeries AJan 2026x.com
• MintlifySeries B2025tracxn.com

Key people

Named individuals at the firm. We don't expose direct email or phone — use their LinkedIn for outreach.

• Marc Andreessen · Co-founder & General Partner
  Brief →
• Chris Dixon · General Partner (crypto)
• Alex Rampell · General Partner
• Seema Amble · Partner
• Guido Appenzeller · Partner
• Gokul Rajaram · Partner
• Marco Mascorro · Partner
• Ben Horowitz · Co-founder
  Brief →
• Andrew Chen · General Partner
  Brief →
• Connie Chan · General Partner
• Sriram Krishnan · General Partner (on leave)
• Martin Casado · General Partner
• Anjney Midha · General Partner

Sources

• Andreessen Horowitz raises $15 billion, doubling down on AI and defense startups | Reuters
• Andreessen Horowitz - Wikipedia
• Why Andreessen Horowitz's massive funding round signals a shift in Silicon Valley's priorities - Los Angeles Times
• Andreessen Horowitz - 2026 Investor Profile, Portfolio, Team & Investment Trends - Tracxn
• Andreessen Horowitz Portfolio Investments, Funds, Exits - CB Insights

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