Andreessen Horowitz

Corporate brand

A U.S. venture capital firm, commonly known as a16z, investing primarily in technology startups and emerging technology sectors.

Last updated October 7, 2026

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Overview

Andreessen Horowitz, commonly known as a16z, is a private U.S. venture capital firm founded by Marc Andreessen and Ben Horowitz in 2009. It primarily provides equity investment to technology startups and has invested across areas including software, the internet, artificial intelligence, biotechnology and healthcare, financial technology, cryptocurrency, and blockchain. In addition to capital, the firm promotes operational support for portfolio companies in areas such as recruiting, marketing, legal services, policy, technology, and company building. Its profile is associated with the founders’ backgrounds in technology entrepreneurship and investing, its focus on emerging technologies, and its network across the startup ecosystem. As a private investment firm, its public disclosures generally emphasize investment strategies, funds, and portfolio companies rather than comprehensive operating financial data.

History

Andreessen Horowitz was founded in 2009 by Marc Andreessen and Ben Horowitz. Both founders had prior experience in technology entrepreneurship and internet-company management, and they positioned the firm as a long-term venture capital provider for technology startups. The firm gradually expanded its investment focus from software and internet companies into areas such as financial technology, cryptocurrency, artificial intelligence, biotechnology, and healthcare. Its model extends beyond capital provision, offering portfolio companies support in recruiting, marketing, legal affairs, policy engagement, and operational development. As startup activity in emerging technologies expanded, a16z became one of the better-known brands in the U.S. venture capital industry. Because it is privately held, detailed public information about its full organizational structure, assets, and operating finances is limited.

2009
[1]Andreessen Horowitz official websitea16z.com

Products and positioning

2009
Venture Capital Funds
Venture capital funds are the core business format of a16z. They invest in technology startups at different stages through equity financing, with publicly described areas including software, the internet, artificial intelligence, fintech, cryptocurrency, and biotechnology and healthcare.

Recent events

Unconfirmed
Dream raises $17 million from a16z[4]Dream从a16z获得1700万美元融资techcrunch.com
Reported: 2026-10-29
Dream received $17 million from a16z to build AI world models for construction.
2026-10-22
Andreessen Horowitz renames a16z Crypto as a16z Frontier[5]Andreessen Horowitz 将 a16z Crypto 更名为 a16z Frontiertechcrunch.com
Reported: 2026-10-22
Andreessen Horowitz announced that it is renaming its digital asset unit from a16z Crypto to a16z Frontier.
Unconfirmed
Eka Robotics closes $150 million Series A[6]Eka Robotics完成1.5亿美元A轮融资techcrunch.com
Reported: 2026-10-20
Eka Robotics closed a $150 million Series A round that valued the startup at $1.45 billion post-money. The round was led by a16z and F-Prime.
2026-10-05
Ghost raises $11 million seed round led by Andreessen Horowitz[7]Ghost宣布完成1100万美元种子轮融资，由Andreessen Horowitz领投techcrunch.com
Reported: 2026-10-05
Ghost, a startup building Core, a $3,499 personal computer for AI agents, announced on Monday, October 5, 2026, that it has emerged from stealth after a year of building and raised an $11 million seed round led by Andreessen Horowitz, with participation from Abstract, Audacious Ventures, SV Angel, and Nova.
Weekdays and relative dates follow the original report; their exact calendar dates have not been verified.
2026-10-01
Armadin raises $255.5M Series B at over $2.5B valuation[8]Armadin以逾25亿美元估值完成2.555亿美元B轮融资techcrunch.com
Reported: 2026-10-01
Armadin, the agent-swarm security startup founded by Kevin Mandia, announced on Thursday (2026-10-01) that it raised $255.5 million in a Series B round at a valuation of more than $2.5 billion. The round was led by Andreessen Horowitz and Accel, with Bain Capital Ventures, Redpoint, 8VC, Ballistic Ventures, Google Ventures, In-Q-Tel, Kleiner Perkins, and Menlo Ventures joining in.
Weekdays and relative dates follow the original report; their exact calendar dates have not been verified.
2026-09-29
EliseAI raises $350 million at $4 billion valuation[9]EliseAI 融资3.5亿美元,估值翻倍至40亿美元techcrunch.com
Reported: 2026-09-29
AI startup EliseAI announced on Tuesday that it raised $350 million at a $4 billion valuation, double its valuation when it raised its Series E in August 2025. The round was co-led by Andreessen Horowitz and Bessemer Ventures.
Weekdays and relative dates follow the original report; their exact calendar dates have not been verified.
2022-02-15
Memora Health completes $40 million financing[10]Memora Health完成4000万美元融资prnewswire.com
Reported: 2022-02-15
Memora Health announced that it had completed a $40 million financing led by Transformation Capital, with participation from several other investors.
2022-02-10
Sardine raises $19.5 million in Series A funding[11]Sardine完成1950万美元A轮融资coinspeaker.com
Reported: 2022-02-11
Sardine announced that it raised $19.5 million in a Series A funding round on Thursday, February 10, led by Andreessen Horowitz, with NYCA and Experian Ventures among the other participants.
Weekdays and relative dates follow the original report; their exact calendar dates have not been verified.
2022-01-20
Autograph closes $170 million Series B funding[12]Autograph 完成 1.7 亿美元 B 轮融资coinspeaker.com
Reported: 2022-01-20
Autograph announced the closing of a $170 million Series B funding round co-led by a16z and Kleiner Perkins.
2022-01-14
NEAR Foundation announces conclusion of $150 million funding round[13]NEAR 基金会宣布完成 1.5 亿美元融资coinspeaker.com
Reported: 2022-01-14
The NEAR Foundation announced the conclusion of a $150 million funding round led by Three Arrows Capital, with participation from several other investment platforms.

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