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Startup IdeasOverview Play Chat

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AI ideasWhere AI-native companies are being built Trending 2026Rising clusters, new vocabulary Dead ideasGraveyards founders are re-entering StealthHow many are really in stealth

Generate

Idea LabConcepts written from a cluster's data MapSectors, competencies and business forms

Validate

Idea CheckWho is already building it GapsYC requests against what founders build Public MoneyGrants and SBIR for the same space

Right now

Batch LiveThe YC batch as it fills up

Over time

TrendsCluster shares, new terms, diffusion TrajectoryHalf a year of outcomes per company

Directory

CompaniesEvery company, filtered any way OverlapMulti-program companies, serial founders AI VisibilityAEO scores by cluster and batch

Play OverlapSwipe a deck of startup ideas, get your taste card Your decksDecks you have played and their taste cards ProfileHow the radar understood you TeamsCo-founder profiles merged into one SessionsGroup voting on ideas

Cohorts of 2021

Companies whose accelerator cohort started in 2021. 1,685 companies.

clusterB2B SaaS 183 Consumer 168 Fintech 155 Healthcare and bio 126 Commerce and marketplaces 111 Developer tools 68 Climate and energy 66 Vertical AI agents 66 Robotics and physical world 59 Security and compliance 34 Other 28 Data for AI 24 Horizontal AI assistants 17 Defense and space 15 Agent infrastructure 13 AI infra and compute 7

sourceY Combinator 727 Techstars 519 500 Global 99 SOSV 72 Antler 69 Entrepreneur First 62 Alchemist Accelerator 47 Berkeley SkyDeck 36 Seedcamp 31 South Park Commons 22 Sequoia Arc 1

statusActive 1,214 Acquired 135 Inactive 133

Company	Cluster	Program	Status	Last signal

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