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Holden Karnofsky: Profile, Experience & Investments | Startup Intros

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HOLDEN KARNOFSKY

Co-CEO & Co-Founder at Open Philanthropy

ActiveFounder Investor

Updated: Apr 2, 2026 ·

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Role: Co-CEO & Co-Founder
Company: Open Philanthropy
Status: Active
Type: Founder, Investor

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Experience

Co-CEO & Co-FounderFounderCurrent

Open Philanthropy

Present - Present

Frequently Asked Questions

Who is Holden Karnofsky?

Holden Karnofsky is Co-CEO & Co-Founder at Open Philanthropy.

What companies has Holden Karnofsky founded?

Holden Karnofsky co-founded Open Philanthropy.