Ryan K.

Active Investor

Venture Partner at Pioneer Fund

San Francisco, United States

Ryan K., Venture Partner at Pioneer Fund is an active investor based in San Francisco, United States. This profile covers what Ryan K. backs, at which stage, and how founders can reach out in 2026.

Ryan K. is a Venture Partner at Pioneer Fund and the Cofounder/CEO of RTHM, which builds an AI-powered health system.

Ryan K. invests in Digital Health & HealthTech and Artificial Intelligence, typically at Seed, Series A and Early Stage Venture.

Location
San Francisco, United States
Typical check
$500K

What does Ryan K. invest in?

Investor type
VCAngel
Stages
SeedSeries AEarly Stage Venture
Invests in
Digital Health & HealthTechArtificial Intelligence

Where is Ryan K. based?

Ryan K. is based in San Francisco, United States.

How to reach Ryan K.

Angels and operators like Ryan K. reply to specific, personalized notes that show real traction, not mass blasts. Build a verified list, write a note that fits their thesis, and track replies, all on Round Funded.

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Round Funded. "Ryan K.." Round Funded investor database, updated September 22, 2026.

Stable URL, it will not change: https://www.roundfunded.com/en/investor/ryan-k-san-francisco

Frequently Asked Questions

Who is Ryan K.?

Ryan K., Venture Partner at Pioneer Fund is an active investor based in San Francisco, United States. Ryan K. invests in Digital Health & HealthTech and Artificial Intelligence, typically at Seed, Series A and Early Stage Venture.

What does Ryan K. invest in?

Ryan K. invests in Digital Health & HealthTech and Artificial Intelligence, typically at Seed, Series A and Early Stage Venture. Match your sector and stage, then reach out with a personalized pitch.

What stage does Ryan K. invest at?

Ryan K. typically invests at Seed, Series A and Early Stage Venture. Lead with traction that fits the stage when you reach out.

What is Ryan K.'s typical check size?

Ryan K. typically writes checks around $500K. Use it as a signal for whether your raise fits their stage.

Where is Ryan K. based?

Ryan K. is based in San Francisco, United States.

How do founders reach investors like this?

Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.

What is Round Funded?

Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.

Investor lists that match Ryan K.'s profile

Lists of investors with the same location, stage, sector or investor type as Ryan K..

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  • Dave MessinaGeneral Partner at Pioneer Fund, San Diego
  • Don HoCEO at Pioneer Fund, San Francisco
  • Joe ConnollyVenture Partner at Pioneer Fund
  • Sher ButtVenture Partner at Pioneer Fund, San Diego
  • Matt SchillerSenior Venture Partner at Pioneer Fund, San Francisco
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  • Esther DysonAngel investor in New York City
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