Mark Jacobstein Location
Stanford, United States
Mark Jacobstein Work
- 2026–nowGeneral Partner @ South Park Commons
- 2023–nowVenture Builder @ TVTAK
- 2023–nowVenture Builder @ Sanctum, Inc.
- 2023–nowCo-Founder and President @ Jimini Health
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- 2023–nowVenture Builder @ NewCo
- 2023–nowAdvisor @ Sleuth
- 2023–nowVenture Builder @ Sleuth Inc
- 2023–nowVenture Builder @ Sleuth
- 2023–nowCo-Founder and President @ Stealth MentalHealthCo
- 2023–nowCo-Founder and President @ Stealth Company (Mark Jacobstein)
- 2018–nowBoard Member @ Luminopia
- 2015–nowChief User Engagement Officer @ Guardant Health
- 1994–nowFounder and Partner (de facto co-CEO) @ Small World Software
- Entrepeneur in Residence @ Advantage Capital
- VP Wireless and iTV @ Sporting News
- CEO @ Small World Sports
- SVP @ iXL
- Venture Builder @ IT CRUX Mobile Apps Solutions
- Executive Business Advisor and stay-at-home dad @ IT CRUX Mobile Apps Solutions
- EVP Corporate Development & Marketing @ IT CRUX Mobile Apps Solutions
- Entrepeneur in Residence @ IT CRUX Mobile Apps Solutions
- CEO @ IT CRUX Mobile Apps Solutions
- Founder and Partner (de facto co-CEO) @ IT CRUX Mobile Apps Solutions
- 2025–2026Visiting Partner @ South Park Commons
- 2020–2026Board Member @ Odin
- 2024–2025Venture Builder @ Second
- 2023–2025Co-founder and General Partner @ Near Horizon
- 2023–2023Executive Business Advisor and stay-at-home dad @ TVTAK
- 2023–2023Executive Business Advisor and stay-at-home dad @ Numerous
- 2023–2023Executive Business Advisor and stay-at-home dad @ NewCo
- 2022–2023Executive Business Advisor at Immunai @ Immunai
- 2020–2022Chief Business Officer @ Immunai
- 2019–2019Co-Chair Working Group on Data Access @ Biden Cancer Initiative
- 2011–2017Board Member @ Full Circle Fund
- 2013–2015Chief Sabbatical Officer @ No longer on Sabbatical
- 2013–2015Chief Sabbatical Officer @ Currently on sabbatical
- 2010–2013VP Product Management @ Qualcomm
- 2010–2013VP Product Management @ Qualcomm
- 2007–2010CEO @ iSkoot
- 2007–2010CEO @ Qualcomm
- 2007–2007Entrepreneur in Residence @ Charles River Ventures
- 2007–2007Entrepreneur in Residence @ CRV
- 2006–2007EVP Corporate Development & Marketing @ loopt, Inc.
- 2006–2007EVP Corporate Development & Marketing @ TVTAK
- 2006–2007EVP Corporate Development & Marketing @ NewCo
- 2003–2005President of Publishing, co-Founder @ Digital Chocolate
- 2003–2003Entrepeneur in Residence @ TVTAK
- 2003–2003Entrepeneur in Residence @ NewCo
- 2001–2002VP Wireless and iTV @ PERFORM
- 1994–2002CEO @ TVTAK
- 1994–2002CEO @ NewCo
- 1998–2000SVP @ SapientRazorfish
- 1994–1998Founder and Partner (de facto co-CEO) @ TVTAK
- 1994–1998Founder and Partner (de facto co-CEO) @ NewCo
Mark Jacobstein Investing
Advisor at Sleuth
- Stages
- Seed, Pre-seed
- Sectors
- Health tech, Consumer
- Cheque size
- €460k–€1.1M
- Leads rounds
- Yes
- Freshness
- Verified 1mo ago
Mark Jacobstein Summary
Mark Jacobstein, based in Stanford, United States, is an Advisor at Sleuth. Mark Jacobstein invests in Health tech and Consumer at Seed and Pre-seed, writing €460k–€1.1M cheques. Mark Jacobstein brings experience from South Park Commons, TVTAK, Sanctum, Inc. and Jimini Health. Mark Jacobstein's verified email and contact details are available on Mintround.
How to cold email Mark Jacobstein
Mark Jacobstein, Sleuth in Stanford, United States, backs Health tech and Consumer companies at Seed and Pre-seed, writing €460k–€1.1M cheques. Here's how to get a reply when you cold email Mark:
- Subject line: name your company and one metric that matters to Health tech and Consumer, not “quick chat”.
- First line: your strongest traction, the real numbers, not adjectives.
- One ask: a 20-minute call with a date range. Keep it under 150 words.
- Send it to Mark's verified address below. No warm intro required.
Every contact is a verified, deliverable email. How Mintround verifies contacts.
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