Mark Jacobsen

Mark Jacobsen

Active Investor

Managing Director at O'Reilly AlphaTech Ventures

San Francisco, California

Mark Jacobsen, Managing Director at O'Reilly AlphaTech Ventures is an active investor based in San Francisco, California. This profile covers what Mark Jacobsen backs, at which stage, and how founders can reach out in 2026.

Investor type
VCMicro VCPE
Stages
Early Stage VenturePre SeedSeed
Invests in
Artificial IntelligenceHealthcare & BiotechBiotech & PharmaSaaS & EnterpriseConsumer & RetailConsumer Goods (CPG)E-commerce & D2CDeveloper Tools & Data
Location
San Francisco, California
Typical check
$250K
Past investments
57

Notable investments

Signal SciencesFoursquareLearnZillionCampagoSherpaaFidelisBloom StudioMaker Media3D RoboticsScrollCotton BureauRiffyn

How to reach Mark Jacobsen

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Frequently Asked Questions

What does Mark Jacobsen invest in?

Mark Jacobsen invests in Artificial Intelligence, Healthcare & Biotech, Biotech & Pharma and SaaS & Enterprise, typically at Early Stage Venture, Pre Seed and Seed. Match your sector and stage, then reach out with a personalized pitch.

How do I contact Mark Jacobsen?

Unlock Mark Jacobsen's verified email on Round Funded and send a personalized pitch. We surface only deliverable contacts so your outreach lands.

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