Built by people who believe tech should serve communities
Why we started Glowhopper
Every year, more than 100,000 people in the United States die from drug overdoses. Naloxone — a medication that can reverse an overdose in minutes — is often free and available nearby. But finding it? That's the challenge.
We built Glowhopper because the information exists. It's just scattered, outdated, and inaccessible to the people who need it most. We saw an opportunity to use AI and community partnerships to change that — and we took it.
Our name reflects our mission. A glowhopper is part firefly, part grasshopper: fast-moving, light-giving, built to illuminate new paths forward. That's exactly what we're doing.
Two founders. One shared vision.
We've both sat inside complex systems, worked across technical and non-technical teams, and understand what it actually takes to deliver outcomes in the real world.
Co-founder, Chief executive officer
Tiffany Yu
Tiffany brings 8+ years of experience driving digital transformation and AI product development across Fortune 500 companies, consulting firms, and startups. She has partnered with 20+ senior executives to design enterprise solutions that reduced inefficiencies by 30% and generated $2.5 million in new revenue. She holds a master's in Clinical Informatics Management from Stanford University and bachelor's degrees in Data Science and Public Health from UC Berkeley.
co-founder, chief science officer
Emily Siff
Emily brings a decade of experience at the intersection of neuroscience, robotics, and community health. With a strong track record in naloxone intervention training and service on multiple community health boards, she combines rigorous research with deep grassroots organizing. Emily holds a PhD in Neuroscience from Yale University. She holds a master's degree in Cognitive Science and bachelor's degrees in Neuroscience and Literary Arts from Brown University.
Latest Press
April 2026
  • Panelist at Research!America 2026 GRAPHS Conference (April 2026)
  • Panelist at Yale University's 2026 BioBridge Conference (April 2026)
  • Featured Exhibitor for the 2026 New York Society of Addiction Medicine Conference (March 9, 2026)
  • Rothberg Grant Fund Recipient (February 2026)
  • Keynote Speaker for the First Annual Realist Labs Launchathon (January 2026)
  • Yale University Venture Program and Grant Recipient (October 2025)
  • Realist Labs Empower Cohort (October 2025)
  • Connecticut SBIR Accelerator (September 2025)
  • National Science Foundation Innovations-Corps Program (April 2025)
  • Winners of the Yale Healthcare Hackathon (January 2025)
Glowhopper
Closing the gap between people in crisis and life-saving Naloxone access
Product