YC Summer 2026 (S26) founder

Emily Colman

Founder of RonanRx Inc., Full Stack Pharmaceutical Company for Personalized Peptides and GLP-1s

Company

Emily Colman is listed as a founder of RonanRx Inc.. RonanRX is a full-stack pharmaceutical company, starting with personalized peptides and GLP-1s. In our first 10 weeks, we went from having no pharmacy to being licensed in 33 states. Since launch, we’ve grown 50% week over week. We manufacture the medications ourselves, sell directly to patients, and eliminate the layers of middlemen that make prescription drugs more expensive. What makes this possible is AI. Traditional pharmaceutical companies are built to manufacture one drug for millions of people. RonanRX is purpose-built to personalize treatment for each patient: different biology, different response, different dose. Patients come directly to RonanRX or through doctors using our platform. Every patient completes our medical intake, meets with a licensed doctor through our telehealth platform, and receives a personalized prescription when appropriate. From there, we manufacture the medication ourselves and deliver it directly to the patient. Labs, wearables, medical history, treatment response, and other health data feed back into the platform so doctors can continuously refine treatment over time. Before AI, doing this for every patient at scale was impossible. We didn't invent the demand we are seeing. 80 Million people are on a GLP-1 and millions more are using Peptides. We're building a better way to manufacture, personalize, prescribe, and deliver them. Our founders have built and exited multiple companies, raised more than $100M, built a $50M U.S. medical manufacturing business, and spent years developing peptide therapeutics at companies including Eli Lilly and AbbVie. We’re just getting started with peptides and GLP-1s. Next comes hormone therapy and the rest of personalized medicine.

Founder traction evidence

Public posts and activity attributed directly to this founder.

  1. X

    Major takeaway: not everything needs to be polished, I used it be scared of a typos.

    Major takeaway: not everything needs to be polished, I used it be scared of a typos. At YC’s Sales Mini Conference this week I heard the opposite: The more polished your outreach looks, the more it reads like spam. Long intros, clean formatting, “Best regards” all signals you...

  2. X

    been wanting this since Clueless 😍 anyone else?

    been wanting this since Clueless 😍 anyone else?

  3. X

    I hosted an event at @ycombinator because I believe the future is personalized medicine!

    I hosted an event at @ycombinator because I believe the future is personalized medicine!

  4. X

    Merch I actually like @gork

    Merch I actually like @gork

  5. LinkedIn

    The future is now, RonanRX.com

    The future is now, RonanRX.com

  6. X

    Best part of being in @ycombinator, is hanging with other founders! Congrats @milenovic925501 on your launch 🚀

    Best part of being in @ycombinator, is hanging with other founders! Congrats @milenovic925501 on your launch 🚀

  7. X

    @Ronan_RX see you there @larmbrust

    @Ronan_RX see you there @larmbrust

  8. X

    Fun day hanging with the YC26 summer batch ⛵️

    Fun day hanging with the YC26 summer batch ⛵️