Andreessen Horowitz
Andreessen Horowitz is a pre-seed to growth stage investment firm. It has made 896 investments. Average disclosed round size is $104.0M (across 1398 rounds with reported amounts).
Portfolio
896
Fund Size
—
Top Stage
Series A
Last 12 Mo
87
Team
ET
Erik Torenberg
Marketing, Investing
AG
Abby Green
Marketing
AF
Adam Fry
Finance
AS
Aiden Slavin
Legal & Regulatory
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
1532 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Braveheart Bio | Unknown | $185M | Sep 2026 |
 Smart Bricks | Pre-Seed | $5M | Sep 2026 |
| BBoring Company | Series D | — | Sep 2026 |
 The Boring Company | Series D | — | Sep 2026 |
 Félix | Series C | $200M | Sep 2026 |
 Inceptive | Seed | $100M | Aug 2026 |
 Castelion | Series C | $1B | Aug 2026 |
 Base Power | Series D | $1B | Aug 2026 |
 Hadrian | Series C | $260M | Aug 2026 |
 Hadrian | Series B | $117M | Aug 2026 |
 Mariana Minerals | Series B | $310M | Aug 2026 |
| MMariana | Series B | $310M | Aug 2026 |
 Senra Systems | Series B | $65M | Jul 2026 |
| SSenra | Series B | $65M | Jul 2026 |
 Mirendil | Seed | $200M | Jun 2026 |
| NNetris | Series A | $15M | Jun 2026 |
| PProbook | Series A | $34M | Jun 2026 |
| JJarvie AI | Seed | $8.3M | Jun 2026 |
 Prosper AI | Series A | $30M | Jun 2026 |
 Podium Automation | Series A | $18M | Jun 2026 |
 Digital Asset Holdings | Series F | $355M | Jun 2026 |
 Sparq | Seed | $8.5M | Jun 2026 |
 Arc | Seed | $10.8M | May 2026 |
| AAdvanced Manufacturing Company of America | Series B | $300M | May 2026 |
 Mercury | Series B | $120M | May 2026 |
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Top Co-Investors
Andreessen Horowitz (a16z) Bio + Health550 shared
Y Combinator167 shared
General Catalyst119 shared
Sequoia Capital111 shared
Founders Fund76 shared
SV Angel74 shared
Thrive Capital61 shared
Lightspeed Venture Partners60 shared
GV55 shared
Coatue Management LLC52 shared
Kleiner Perkins47 shared
Index Ventures46 shared
a16z crypto41 shared
Tiger Global Management, LLC40 shared
Khosla Ventures38 shared
Greylock Partners36 shared
BoxGroup36 shared
First Round Capital36 shared
Lux Capital34 shared
Felicis33 shared
Last updated: 7 October 2026