Mark Jacobstein

Companies founded

Jimini Health

Founder · 2023 – present

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Digital Chocolate

Founder · 2003 – 2005

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Currently

Active roles, board seats and partnerships.

South Park Commons

Partner · General Partner · 2025 – present

venture_capital

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Sleuth

Advisor · 2023 – present

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Luminopia

Board Member · 2018 – present

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Small World

CEO

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Work history

Past roles by Dealroom records.

Second

Venture Builder · 2024 – 2025

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Immunai

Executive Business Advisor · 2020 – 2023

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Odin

Board Member · 2020 – 2026

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Biden Cancer Initiative

Data Access Co-Chair · 2019 – 2019

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Guardant Health

Chief User Engagement Officer · 2015 – 2019

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Full Circle Fund

Board Member · 2011 – 2017

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CRV

Entrepreneur In Residence · 2007 – 2007

venture_capital

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ISkoot

CEO · 2007 – 2010

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SapientRazorfish

1998 – 2000

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Education