Andreessen Horowitz
UnclaimedAt a Glance
- Check Size
- $500K – $100M
- Stage
- Seed, Series A, Series B+
- AUM
- $90B
- Sectors
- AI, Biotech, Deeptech +1
- Founded
- 2009
- HQ
- Menlo Park, CA
About Andreessen Horowitz
Andreessen Horowitz is a venture capital firm based in Menlo Park, CA founded in 2009. Andreessen Horowitz (a16z) is a venture capital firm in Silicon Valley, California, investing in bold founders, innovators, and entrepreneurs building the future through technology. The firm focuses on Seed, Series A, Series B+ investments across sectors including AI, Biotech, Deeptech, Enterprise. The firm manages $35B in assets under management. Notable portfolio companies include Facebook, Airbnb, GitHub, Coinbase, Stripe, Slack, Lyft and Instagram. Invests in technology companies from seed to late stage, with focus on AI, crypto, biotech, consumer, and enterprise software.
Investment Thesis
“Invests in technology companies from seed to late stage, with focus on AI, crypto, biotech, consumer, and enterprise software.”
Sector Focus
Investment Stage
Notable Portfolio Companies
Fund History
Andreessen Horowitz launched in July 2009 with roughly $300 million of initial capitalization: Fund I closed $241.5 million from 44 investors and a parallel Fund I-A added $34.5 million. Fund II followed in November 2010 at $601.1 million, plus $32.1 million in Fund II-A, taking the firm past $1.2 billion within two years. Fund III registered $900 million in 2012 alongside an $80 million Fund III-Q vehicle. Fund IV closed $1.0 billion in March 2014 with $129.6 million more in Fund IV-Q, lifting assets to about $4 billion. Fund V closed $999.6 million in June 2016 with $148.6 million in Fund V-Q, and Fund VI closed $750 million in 2019 with $74.7 million in Fund VI-Q.
Scale then changed the shape of the firm. January 2022 brought $9 billion across venture, growth and bio strategies. In 2024 it registered dedicated Fund IX vehicles split between AI applications and AI infrastructure. A January 2026 raise added $15 billion across five funds, putting assets under management at roughly $90 billion.
SEC Fund Filings
- Vehicles filed, last 24 months
- 36
- Latest filing
Andreessen Horowitz filed a Form D for 36 fund vehicles between Sep 26, 2024 and Sep 25, 2026. The 8 most recent:
| Fund vehicle | Source |
|---|---|
| AH AD 250, L.P. | SEC Form D, filed |
| ATOAH, L.P. | SEC Form D, filed |
| DATAH, L.P. | SEC Form D, filed |
| Carolah Opportunities I, L.P. | SEC Form D, filed |
| AH AI Opportunities Fund, L.P. | SEC Form D, filed |
| AH American Dynamism Fund II-B, L.P. | SEC Form D, filed |
| AH Crypto Fund V-B, L.P. | SEC Form D, filed |
| Andreessen Horowitz Fund X-B - AI Applications, L.P. | SEC Form D, filed |
A Form D is the notice a fund files with the SEC when it raises money in a private offering. Feeder funds, parallel funds and SPVs each file their own, so the count measures filing activity, not the number of flagship funds.
Source: SEC EDGAR Form D filings for pooled investment funds, original filings only (amendments excluded). Our filing data starts Jul 1, 2024. Vehicles are matched to Andreessen Horowitz by fund name and checked against the sponsor address and named principals on each filing; offering amounts are not shown. Each “SEC Form D” link opens an EDGAR full-text search for that vehicle’s exact name, where the filing itself is listed. See every new fund filing on the Form D Radar.
Team (27)
Alex Rampell
General Partner, Andreessen Horowitz
Ali Yahya
General Partner, Andreessen Horowitz
Angela Strange
General Partner, Andreessen Horowitz
Anish Acharya
General Partner, Andreessen Horowitz
Anne Lee Skates
Partner, Andreessen Horowitz
Connie Chan
General Partner, Andreessen Horowitz
Daisy Wolf
Investment Partner, Health, Andreessen Horowitz
David George
General Partner, Andreessen Horowitz
David Haber
General Partner, Andreessen Horowitz
David Ulevitch
General Partner, Andreessen Horowitz
Jeff Jordan
General Partner, Andreessen Horowitz
Jennifer Li
Partner, Andreessen Horowitz
Joe Morrissey
General Partner, Andreessen Horowitz
Jonathan Lai
General Partner, Andreessen Horowitz
Jorge Conde
General Partner, Andreessen Horowitz
Julie Yoo
General Partner, Andreessen Horowitz
Justine Moore
Partner, Andreessen Horowitz
Katherine Boyle
General Partner, Andreessen Horowitz
Kristina Shen
General Partner, Andreessen Horowitz
Marc Andrusko
Partner, Andreessen Horowitz
Olivia Moore
Partner, Andreessen Horowitz
Peter Levine
General Partner, Andreessen Horowitz
Sarah Wang
General Partner, Andreessen Horowitz
Seema Amble
Partner, Andreessen Horowitz
Vineeta Agarwala
General Partner, Andreessen Horowitz
Yoko Hongyu Li
Partner, Andreessen Horowitz
Zane Lackey
General Partner, Andreessen Horowitz
Related Articles (6)
Frequently Asked Questions
What stage does Andreessen Horowitz invest at?
Andreessen Horowitz primarily invests at the Seed, Series A, Series B+ stages. This means they focus on companies that are building their initial product and finding product-market fit.
Where is Andreessen Horowitz located?
Andreessen Horowitz is headquartered in Menlo Park, CA. Many of their portfolio companies are also based in this region, though they invest across geographies.
What sectors does Andreessen Horowitz focus on?
Andreessen Horowitz focuses on investments in AI, Biotech, Deeptech, Enterprise. Their portfolio reflects deep expertise and networks within these sectors.
What is Andreessen Horowitz's typical check size?
Andreessen Horowitz's typical investment check size ranges from $500K to $100M. Actual amounts may vary based on the stage, sector, and specific opportunity.
How much does Andreessen Horowitz have under management?
Andreessen Horowitz manages approximately $90B in assets under management (AUM) across their funds.
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