YC Summer 2026 (S26) founder

Leon Mojarrabi

Founder of Gutgutgoose, We sequence your gut and build the probiotics it’s missing

Company

Leon Mojarrabi is listed as a founder of Gutgutgoose. Most data companies pay for their data. Ours pays for itself. Customers send us a stool sample. We sequence it, build a metabolic model of that gut, and simulate whether each probiotic strain has an open niche it can colonize. We formulate the best candidates, then re-sequence 90 days later to see what actually took hold and what changed. Each cycle gives us the baseline gut, the intervention, and the outcome. At scale, the endgame is models that predict chronic disease years before symptoms.

Founder traction evidence

Public posts and activity attributed directly to this founder.

  1. LinkedIn

    San Francisco: Want to help a YC startup take over the city?

    San Francisco: Want to help a YC startup take over the city? 🚀 We're organising a GutGutGoose poster blitz and looking for people to join us for an afternoon this month. 🍕 Pizza's on us. 💻 You'll also go into the draw to win a MacBook Neo. If you're 16+, based in San...