Top accelerator startups

Startups14,448Programs29

14,448 startups · 29 programs

PostEra

Active · Medicinal Chemistry powered by Machine Learning

WebsiteYC profile

Why it ranks

How the rank works
14signal of 100 · rising 3
  • team of 40Team size · YC's directory+8.4
  • went through YCProgram · this site+4
  • hiringHiring · Titles (titles.fru.dev), YC+2

A sum of public facts, not a judgement and not investment advice.

Competitors

AINumerion LabsShared: medicinal chemistry, drug discovery, machineYC W15San FranciscoStartup →AIb12 LabsShared: drug discovery, medicinal, chemistryYC S25San FranciscoStartup →OtherGilgamesh PharmaceuticalsShared: medicinal chemistry, drug, scienceYC S20New York CityStartup →AIParallel BioShared: drug discovery, cureYC S21San FranciscoStartup →AIRosebud BiosciencesShared: drug discovery, accelerate, patientYC W22San FranciscoStartup →
Companies closest to PostEra
Company
Numerion LabsShared: medicinal chemistry, drug discovery, machineYC W15ActiveAI
b12 LabsShared: drug discovery, medicinal, chemistryYC S25ActiveAI
Gilgamesh PharmaceuticalsShared: medicinal chemistry, drug, scienceYC S20ActiveOther
Parallel BioShared: drug discovery, cureYC S21ActiveAI
Rosebud BiosciencesShared: drug discovery, accelerate, patientYC W22ActiveAI

Adjacent

AIInactiveLavo Life SciencesShared: ai-powered drug discovery, machine learning, moleculeYC W23Startup →AIVerge GenomicsShared: drug discovery, chemistry, machineYC S15San FranciscoStartup →OtherCarbonaughtShared: 21st centuryAntler 2022AustraliaStartup →OtherMascon TechnologiesShared: 21st century, bringAntler 2022SingaporeStartup →AIChemT BiotechnologyShared: small moleculeMassChallenge Switzerland and UK 2026SingaporeStartup →
Companies next to PostEra
Company
Lavo Life SciencesShared: ai-powered drug discovery, machine learning, moleculeYC W23InactiveAI
Verge GenomicsShared: drug discovery, chemistry, machineYC S15ActiveAI
CarbonaughtShared: 21st centuryAntler 2022Not statedOther
Mascon TechnologiesShared: 21st century, bringAntler 2022Not statedOther
ChemT BiotechnologyShared: small moleculeMassChallenge Switzerland and UK 2026Not statedAI

Also from W20 in AI

All of W20
AIAbalone BioWe create activating antibodies to treat diseases others can’t.YC W20San FranciscoStartup →AIAltay TherapeuticsAltay develops disease-modifying therapies targeting transcription…YC W20San FranciscoStartup →AIAtmoUltra-precise AI weather forecasting.YC W20San FranciscoStartup →AIAcquiredChaos GeniusDataOps Observability Platform for SnowflakeYC W20BengaluruStartup →AIInactiveClayboardCreate active, collaborative learning experiencesYC W20New York CityStartup →AIHandoffAI estimator & agent for remodelers.YC W20AustinStartup →
Company
Abalone BioWe create activating antibodies to treat diseases others can’t.team of 14ActiveAI
Altay TherapeuticsAltay develops disease-modifying therapies targeting transcription…team of 6ActiveAI
AtmoUltra-precise AI weather forecasting.team of 10ActiveAI
Chaos GeniusDataOps Observability Platform for Snowflaketeam of 10acquiredAcquiredAI, Data, Devtools
ClayboardCreate active, collaborative learning experiencesteam of 4InactiveAI
HandoffAI estimator & agent for remodelers.team of 20hiringActiveAI, Devtools

About PostEra

PostEra is building a modern 21st century biopharma. We're using our advances in machine learning to accelerate Medicinal Chemistry and bring more cures to patients. PostEra advances small molecule programs through partnerships with biopharma while also advancing its own internal pipeline. We've raised $26M from top investors and closed $1Bn in AI partnerships, signing multi-year agreements with Amgen, Pfizer and the NIH. PostEra also launched and led the world's largest open-science drug discovery effort; COVID Moonshot.

YC batch
W20 · Winter 2020
Status, per YC
Active
Category
AI
Team size
40
Location
Boston, MA, USA
Checked
7h ago

YC tags: AI-powered Drug Discovery, Machine Learning, COVID-19

Changes seen

HiringOct 8, 2026

Started hiring.

Source ↗

PostEra in W20: 229 companies, 29% AI

PostEra: questions

Which YC batch was PostEra in?

PostEra was in Y Combinator's Winter 2020 batch (W20).

Is PostEra still active?

Y Combinator lists PostEra as active.

Where is PostEra based?

PostEra lists Boston, MA, USA as its location on YC's directory.