Andres Bran

Co-Founder & CTO at b12 Labs (YC S25) | Chemistry & AI | PhD EPFL | Lindau Nobel Meetings Alumni | ex-Max Planck Institute for Math in Science

Co-founder

b12 Labs· Summer 2025 🇺🇸 San Francisco, California, United States

in LinkedIn 𝕏 @drecmb

2025Co-founder· b12 Labs (YC S25)

Founder · since 2025

Company

b12 Labs (YC S25)

Role

Co-Founder

current

Stage

—

no public source

Raised

—

no public source

Based

San Francisco Bay Area

current

Founder / co-founder — the company's markEmployee / research role

Source: LinkedIn work history

Profile coverage5 of 7 · missing posts, contact

b12 Labs

Making hard molecules for Pharma and Biotech

Summer 2025

Experience

Career

b12 Labs (YC S25)
Co-founder
Co-Founder · San Francisco Bay Area · 2025 – Present
2025
EPFL (École polytechnique fédérale de Lausanne)
PHD Student · Lausanne · 2022 – 2026
2022
Lindau Nobel Laureate Meetings
Alumnus · 2025
2025
Max Planck Institute for Mathematics in the Sciences
Guest Scientist · Leipzig, Sajonia, Alemania · 2022 – 2023
2022
Max Planck Institute for Mathematics in the Sciences
Research Intern · Leipzig, Saxony, Germany · 2022
2022
Max Planck Institute for Mathematics in the Sciences
Project Intern · Leipzig, Sajonia, Alemania · 2022
2022
Universidad de Antioquía
Estudiante de ciencias · Medellín Metropolitan Area · 2016 – 2022
2016
University of Rochester
i-Scholar fellow · Rochester, Nueva York, Estados Unidos · 2021
2021

Bio

Before b-12, Andres built the first AI agent to plan and make molecules in a robotic lab (750+ cites in Nature Machine Intelligence, and Best Paper at NeurIPS AI for Science), along with several other works in agents and LLMs for chemistry (1100+ citations). He was an Intern at Max Planck (Math in Science), and PhD at EPFL (AI+Chemistry). Automation is the future of chemistry, but integration and human operability is the hidden demon nobody talks about. We're fixing that at b-12.