Anto Biosciences YC Application

Fall 2025Active

Anto Biosciences went through Y Combinator in the Fall 2025 batch as a Healthcare company. Below: what the company does, who founded it, and its application to YC, reconstructed question by question in the real YC form.

YC batch: Fall 2025
Industry: Healthcare
Team size: 4
Status: Active
Launched: 2025

Founders

Arvid E. GollwitzerFounder
David de GruijlFounder

What Anto Biosciences does

Anto is building a foundation model for microbial communities, making the gut microbiome computable for the first time. We predict drug toxicity and efficacy across diverse populations and fix drugs so they work for everyone - solving the hidden root cause of most drug failures. Founded by Arvid (Broad Institute of MIT and Harvard; Nature-published researcher who pioneered quality-aware, goal-directed sparsification) and David (Harvard Medical School Gastroenterology, J&J), second-time founders who published the breakthrough at leading machine learning AI conferences and Nature.

Anto Biosciences's YC application, reconstructed

Y Combinator application

Anto Biosciences, Fall 2025 batch. The real form questions, answered from public data.

Founders2
Company7
Progress7
Idea4
Equity3
Curious2
Batch Preference1

Company

Company name

Anto Biosciences

Describe what your company does in 50 characters or less.

A Foundation Model for Microbial Communities

What is your company going to make? Please describe your product and what it does or will do.

We're building a foundation model that makes the gut microbiome computable. Our product predicts drug toxicity and efficacy across diverse human populations and modifies drugs to work better for everyone by targeting microbiome-related failure points. It's designed for biotech and pharma teams working on drug discovery and development, helping them understand the hidden root causes of drug failure tied to microbial variation.

Where do you live now, and where would the company be based after YC?

We live and operate in San Francisco, CA, and will base the company here after YC.

Explain your decision regarding location.

San Francisco is the center of biotech and AI startups and close to many pharma partners. Being here lets us recruit the right talent and be near early users and collaborators.

21 more answers in the full application

Founders, Progress, Idea, Equity, Curious, Batch Preference are in the full version. Create a free account to open it in YC Insights, next to every other YC batch.

See full application

Frequently Asked Questions

Is this the real Anto Biosciences YC application?

No. Y Combinator keeps submitted applications private. This is a reconstruction: the real YC form questions, answered from Anto Biosciences's public data (launch notes, founder backgrounds, product description). It shows how a company like Anto Biosciences would present itself to YC, not the text they submitted.