Guido Appenzeller is an angel investor based in Menlo Park, California, United States with one known investment, Tetrate.
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Investment focus
- Stage
- Series A
Contacts
Guido Appenzeller portfolio company (1)
- Tetrate
Affiliated funds' portfolios
Partner at Andreessen Horowitz, whose known portfolio counts 29 companies
- Flora
- Kalshi
- pillar
- Promise
- SuperGaming
- Voyage
- Sage Haven
- Axis
- Nexxa.ai
- Hex Technologies
- Prepared
- Hedra
- and 17 more
Investor Profile
The listing covers sectors AI, FinTech and SaaS, and focus areas Cloud Infrastructure, Crypto, Data Analytics and Developer Tools. Startups operating in these areas may find Guido Appenzeller relevant.
Guido Appenzeller is listed for Series A rounds in the database.
The portfolio and focus above give founders context on whether Guido Appenzeller matches their raise.
Colleagues at Andreessen Horowitz
Showing 20 of 147
Andrew Chen
General Partner
San Francisco, United States
Adrian Fenty
Special Advisor
Washington, United States
Joe Schmidt IV
Partner
San Francisco, United States
Daniel C. Liem
Scout
San Francisco, United States
Martin Casado
General Partner
San Francisco, United States
Zane Lackey
General Partner
New York, United States
David Ulevitch
General Partner
New York, United States
Steven Sinofsky
Board Partner
Sioux Falls, United States
Daouda Leonard
Scout
Los Angeles, United States
Erik Torenberg
General Partner
San Francisco, United States
Jonathan Lai
General Partner
Menlo Park, United States
Fareed Mosavat
Visiting Partner, a16z speedrun
Berkeley, United States
Jeff Jordan
General Partner
San Francisco, United States
Ali Yahya
General Partner
New York, United States
Marc Petit
Scout Investor
Montreal, Canada
Angela Strange
General Partner
San Francisco, United States
Margit Wennmachers
Operating Partner
Jackson, United States
Rubén Domínguez Ibar
Scout
United States
Alexey Moiseenkov
Scout
Palo Alto, United States
Connie Chan
General Partner
San Francisco, United States
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Frequently asked questions
Who is Guido Appenzeller?
Guido Appenzeller is an angel investor based in Menlo Park, California, United States with one known investment on file, Tetrate. The sections above list the sectors, stages and firms attached to that record.
What does Guido Appenzeller invest in?
Listed sectors include AI, FinTech and SaaS; listed focus areas include Cloud Infrastructure, Crypto, Data Analytics and Developer Tools. Those tags come from the companies attached to this profile, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Guido Appenzeller invest at?
The database lists Guido Appenzeller for Series A rounds. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
Which firm is Guido Appenzeller listed at?
Guido Appenzeller is listed as Partner at Andreessen Horowitz. 147 other people in the database share a firm with Guido Appenzeller.
How do I contact Guido Appenzeller?
An email address, a phone number and a LinkedIn page are on file for Guido Appenzeller. The address stays masked on this page and is readable inside RaiseHunt after you create an account.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal