YCS26· OtherGutgutgoose
We sequence your gut and build the probiotics it’s missing
Founders
Not read from YC yet; the weekly run fills these in.
Same space
Competitors
Closest in what they build, same category.
Adjacent
Overlapping tags, a different niche.
SFA TherapeuticsS21Regulating the immune system to block cancer & autoimmune diseasesShared: biotech, health & wellnessActive
Illume LabsS2624/7 Personal Health & Longevity CompanionShared: biotech, health & wellnessActive
IndivioS17Customize videos to be more relevant and improve business outcomes.Shared: personalizationAcquired
Anto BiosciencesF25A Foundation Model for Microbial Communities.Shared: biotechActive
JustAIW24Agentic Marketing PlatformShared: personalizationActive
Also from S26
Batchmates in Summer 2026.
About 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.
San Francisco, CA, USA
Gutgutgoose: questions
Which YC batch was Gutgutgoose in?
Gutgutgoose was in Y Combinator's Summer 2026 batch (S26).
Is Gutgutgoose still active?
Y Combinator lists Gutgutgoose as active.
Where is Gutgutgoose based?
Gutgutgoose lists San Francisco, CA, USA as its location on YC's directory.
Not affiliated with Y Combinator. From YC's public directory. Logos via logo.dev; trademarks belong to their owners.