Startupsby GlyphWhy it ranks
How the rank works- went through YCProgram · this site+4
- team of 3Team size · YC's directory+3.1
- hiringHiring · Titles (titles.fru.dev), YC+2
A sum of public facts, not a judgement and not investment advice.
Competitors
Adjacent
| Company | Category | Status | Program |
|---|---|---|---|
| AI | Active | YCS26 | |
| AI | Inactive | YCW23 | |
| AI | Active | YCW22 | |
| AI | Active | YCS21 | |
| AI | Active | YCS21 |
Also from S25 in AI
All of S25Founders
- Zlatko JončevFounder/CEO
- Andres BranFounder/CTO
About b12 Labs
b12 makes high-value molecules that are otherwise hard to make. We help pharma companies plan and make new drugs, accelerating early-stage drug discovery from years to months. Andres built the first AI agent that can autonomously think and make molecules in a robotic lab, published in Nature Machine Intelligence (1000+ citations), and won the best paper award at the NeurIPS AI for Science conference. Zlatko is a 3x National Chemistry Olympiad champion, competed at IChO level, and medicinal chemist who has worked at Roche and leading lab robotics companies. Combined, we have an extensive network of hundreds of chemists, automation scientists, and AI 4 Science researchers. We run paid pilots with big pharma companies, demonstrating that our platform planned a set of experiments that achieved full conversion in a single attempt, eliminating the iteration cycle.
- YC batch
- S25 · Summer 2025
- Status, per YC
- Active
- Category
- AI
- Team size
- 3
- Location
- San Francisco, CA, USA
- Founded
- 2025
- Checked
- 13h ago
YC tags: AI-powered Drug Discovery, Robotics
b12 Labs: questions
Which YC batch was b12 Labs in?
b12 Labs was in Y Combinator's Summer 2025 batch (S25).
Is b12 Labs still active?
Y Combinator lists b12 Labs as active.
Who founded b12 Labs?
b12 Labs's founders, as listed on its YC page: Zlatko Jončev (Founder/CEO), Andres Bran (Founder/CTO).
Where is b12 Labs based?
b12 Labs lists San Francisco, CA, USA as its location on YC's directory.