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Ryan Kellogg

Ryan Kellogg

Cofounder/CEO @ RTHM (YC W22 🍊) and investor | PhD, Transforming Healthcare

Co-founderRTHM logoRTHM· Winter 2022San Francisco Bay Area
in LinkedIn
2025Venture Partner· Pioneer Fund
Founder · since 2022
Company
Pioneer Fund
Role
Venture Partner
current
Stage
—
no public source
Raised
—
no public source
Based
—
Founder / co-founder — the company's markEmployee / research role
Source: LinkedIn work history
Profile coverage5 of 7 · missing posts, contact
RTHM logo
RTHM

Self-learning care for complex illness

Winter 2022

Experience

Career

  • RTHM logo

    RTHM

    Co-founder

    Cofounder/CEO · 2022 – Present

    2022
  • Pioneer Fund logo

    Pioneer Fund

    Venture Partner · 2025 – Present

    2025
  • Stanford University School of Medicine logo

    Stanford University School of Medicine

    Research Scientist, Snyder Lab · 2016 – 2021

    2016

Bio

Dr. Kellogg’s struggle with a mystery illness led him to pioneer technology for measuring thousands of molecules in self-collected blood microsamples. This allows for a better understanding of health fluctuations and the impacts of health interventions in detail. When combined with wearable sensors and symptom tracking, this technology allows for real-time health monitoring and pattern discovery with unprecedented resolution. PhD in Microfluidics and Systems Biology from ETH Zurich.