RonanRx Inc.
RonanRx Inc. is a YC Summer 2026 (S26) company. Based in San Francisco, CA, USA. Team of 5.
About RonanRx Inc.
Summary
RonanRx Inc. builds a personalized peptide and GLP-1 prescribing platform for patients seeking treatments like tirzepatide and semaglutide. It replaces one-size-fits-all prescribing by syncing a patient's labs, wearables, and medical history into an AI-powered profile that licensed doctors use to set and continuously adjust protocols. RonanRx then manufactures, validates, and ships the prescribed medications directly to patients.
Business model
Fixed monthly per-medication pricing (e.g., $78/month for tirzepatide), with no insurance required
Go-to-market
Patients initiate entirely online, starting with a text-based intake assistant, then proceed through doctor review and prescription before receiving direct-to-door delivery; a separate portal serves prescribing doctors.
From the Y Combinator listing
We use AI to personalize peptides to your biology
RonanRX helps you personalize GLP-1s like Ozempic, peptides, and other treatments using your labs, wearables, medical history, treatment response, and the latest medical research. Instead of treating the average patient, we continuously personalize your treatment as your body changes. We've built the complete feedback loop for personalized medicine: your health data automatically syncs into one place, AI helps personalize treatment, licensed doctors make prescribing decisions, medications are delivered to your door, and every outcome continuously improves your protocol. Connect your health data once. RonanRX automatically syncs your labs, wearables, and medical records into a single AI-powered health profile that helps personalize GLP-1s like Ozempic, peptides, supplements, and other treatments around your biology. If prescribed, your medication is delivered to your door. Our founders have built and exited multiple companies, raised over $100M, and previously built a $50M U.S. medical manufacturing business. Start with a text at RonanRX.com and become the maximum version of yourself,
Facts
- Healthcare / Healthcare
- San Francisco, CA, USA
- 5
- Active
- Early
Founders (2)
Score every batch against your own thesis
GPAgent's sourcing agent reads every company in a batch, scores each one against your fund's thesis in a private workspace, and lines up the founders worth meeting before Demo Day. You decide who to contact. Your scores, notes, and pipeline never appear on these pages.
How Accelerator intelligence works