Ben Horowitz
Solo GP · Menlo Park, California
Named as one of two individuals (Ultimate managing member of the Issuer's GP) on the Form D for Ah AD 250, L.P., a venture fund (Sep 2026) (28 vehicles on file: 25 funds, 3 SPVs). Also a non-executive director at 2 startups that filed Form D.
Angel Investment Confidence Score
Algorithmic score indicating recent deal velocity, check size reliability, and investment conviction in early-stage startups.
Why Ben Horowitz holds a 99/100 confidence score
- Verified active check-writing activity within the last 12 months
- Target check sizes calibrated between $75K–$200K
- Clear domain thesis in AI & ML, Biotech & Pharma, Crypto & Web3
- Named as one of two individuals (Ultimate managing member of the Issuer's GP) on the Form D for Ah AD 250, L.P., a venture fund (Sep 2026) (28 vehicles on file: 25 funds, 3 SPVs). Also a non-executive director at 2 startups that filed Form D.
Building in AI & ML, Biotech & Pharma, Crypto & Web3? See how well your pitch deck matches Ben Horowitz’s thesis.
Check My Startup FitVerified investment track record
Named as one of two individuals (Ultimate managing member of the Issuer's GP) on the Form D for Ah AD 250, L.P., a venture fund (Sep 2026) (28 vehicles on file: 25 funds, 3 SPVs). Also a non-executive director at 2 startups that filed Form D.
Source: SEC Form D: Ah AD 250, L.P. (Sep 24, 2026) · 9 more sources
- Stages
- Pre-seed to Growth
- Typical check (est.)
- $75K–$200K
- Verified deals
- 30 on file
- Latest activity
- Sep 2026
Is Ben Horowitz a fit for you?
See your AI startup fit score, verified contact channels, and warm paths through your network.
What sectors does Ben Horowitz back?
AI & MLBiotech & PharmaCrypto & Web3Media, Gaming & CreatorVerified investments & deal activity
30 deals trackedRecent startup investments, syndicate rounds, and public co-investments across the US and Europe.
- Sep 2026
Ah AD 250, L.P.
Invested through a fund
- Sep 2026
Atoah, L.P.
Invested through a fund
- Aug 2026
CSS Solutions
Board seat on the company's SEC filing · CA
- Aug 2026
DATAH, L.P.
Invested through a fund
- Aug 2026
Carolah Opportunities I, L.P.
Invested through a fund
- Jul 2026
AH AI Opportunities Fund, L.P.
Invested through a fund
- Jul 2026
AH Crypto Fund V-B, L.P.
Invested through a fund
- Jul 2026
AH American Dynamism Fund II-B, L.P.
Invested through a fund
- Apr 2026
Curah II, L.P.
Invested through a fund
- Apr 2026
AH Crypto Fund V, L.P.
Invested through a fund
- Apr 2026
AH Crypto Feeder Fund V, L.P.
Invested through a fund
- Jan 2026
TAP Investment Fund, L.P.
Invested through a fund
- Jan 2026
AH American Dynamism Fund II, L.P.
Invested through a fund
- Dec 2025
Curah, L.P.
Invested through a fund
- Dec 2025
AH Bio Fund V-B, L.P.
Invested through a fund
- Sep 2025
Mistah, L.P.
Invested through a fund
- Aug 2025
Calah Opportunities, L.P.
Invested through a fund
- Mar 2025
AH Bio Fund V, L.P.
Invested through a fund
- Dec 2024
AH Bio Ecosystem Fund, L.P.
Invested through a fund
- Nov 2024
Annual
Deal vehicle; company not disclosed
Public Verification Sources
- SEC Form D: Ah AD 250, L.P.Sep 24, 2026
- SEC Form D: Atoah, L.P.Sep 16, 2026
- SEC Form D: DATAH, L.P.Aug 20, 2026
- SEC Form D: Carolah Opportunities I, L.P.Aug 10, 2026
- SEC Form D: AH AI Opportunities Fund, L.P.Jul 20, 2026
- SEC Form D: AH Crypto Fund V-B, L.P.Jul 16, 2026
- SEC Form D: AH American Dynamism Fund II-B, L.P.Jul 16, 2026
- SEC Form D: Curah II, L.P.Apr 9, 2026
- SEC Form D (board seat): DatabricksSep 29, 2023
- SEC Form D (board seat): CSS SolutionsAug 21, 2026
Data refreshed from SEC filings and public European announcements Oct 15, 2026. Is this you? Correct or remove this profile.
Active Angels Similar to Ben Horowitz
Founders raising in ai and bio also reach out to these verified check-writers with similar portfolio focus and check sizes.
Syndicate lead · Austin, TX
Individual angel · San Francisco, CA
Individual angel · Miami, FL
Solo GP · Manchester, NH
Raising pre-seed or seed for your startup?
Don’t pitch blindly. Our AI engine evaluates your startup against Ben Horowitz and 100+ active US & European angels to deliver 3 perfect matches with tailored warm intros and pitch deck reviews.