b12 labs
Chemical Manufacturing · Artificial Intelligence
Overview
AI-powered chemical synthesis platform. Plan complex routes, design experiments, and automate lab workflows.
Funding and backers
Team
51-200
employees, estimated range
Backers
1
Y Combinator
Momentum
15/100
in the news
Last sign of life
this month
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Aug 15, 2025
Launched b12 labs launches from Y Combinator · b12-labs.com
Jul 2025
Website went live first capture in the Wayback Machine
Jun 2025
Went through Y Combinator
Tractionpublic signals, read monthly
Web presence
top 7%
of 133.2M domains by links, Common Crawl
Backed byfrom the funds' portfolios and accelerator catalogs
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Connections
List
Graph
Found in company registers, site code, DNS and hiring. Each connection shows how sure we are and the evidence, with its source and date.
Shared investors
Y CombinatorVia a fund
6310 portfolio companies
Click a company to open it. Dashed lines are likely connections. The second step of the network is part of the Pro plan.
Owner
Same company
Same group
Likely
Shared investors
News
Batch agentic synthesis: finding the common ingredients in your molecular dishes
Selenium can find shared molecular intermediates in multiple synthesis to make your life easier
Read more
Report
Agentic Synthesis: Making the molecules models want
Meet Selenium, b12's agentic retrosynthesis system for turning ambitious molecules into practical routes from purchasable starting materials.
Read more
Report
Palladium: the planning layer for chemical synthesis
We are announcing Palladium, b12's HTE-ready plate designer for turning proposed chemical transformations into grounded experimental plans.
Read more
Report
b12 labs launches from Y Combinator
We came out of stealth as part of YC to build AI agents that turn natural language into executable lab automation workflows.
Read more
Report
Offices
Where the company hires and what each office is for
Cities
1
Hiring now
0
Countries
1
San Francisco
United States
HQ
50-200 est. staff