The Top AI Compute Startups in YC S26
Six companies from Y Combinator's Summer 2026 batch working on the cost of training and serving AI models, from offshore nuclear power to biological neurons.
Top Startup Lists
The top startups in each Y Combinator batch, by category: developer tools, robotics, bio and health, legaltech, hardtech, marketplaces, and more, as picked by The Silicon Valley Post.
The Top Enterprise AI Startups in YC S26
Six enterprise AI companies from Y Combinator's Summer 2026 batch, covering Slack coworkers, voice agents, market simulation, engineering interviews, kernel security, and government affairs.
The Top Marketplace Startups in YC S26
Four marketplace companies from Y Combinator's Summer 2026 batch putting AI agents into the selling, matching, and sourcing work that used to require people.
The Top Physical AI Startups in YC S26
Seven companies from Y Combinator's Summer 2026 batch building robots for real-world work and the software layer that connects AI models to machines.
The Top SpaceTech Startups in YC S26
Three companies from Y Combinator's Summer 2026 batch building lunar industry, a sovereign satellite constellation, and rocket-delivered cargo.
The Top Agent-Pilled Startups in YC P26
From phone numbers to liability insurance to hiring marketplaces, YC's Spring 2026 batch is building the infrastructure, tooling, and services that AI agents need to actually operate in the real world.
The Top DevTech Startups in YC P26
Eleven developer tools startups from Y Combinator's Spring 2026 batch building infrastructure for the agent-driven development era.
The Top Hardtech Startups in YC P26
From compact nuclear reactors to counter-drone turrets to mobile MRI, YC's Spring 2026 batch has a strong showing in hardtech.
Top Marketing Tech Startups in YC P26
Four startups from YC's Spring 2026 batch are tackling marketing's distribution problem with AI agents, synthetic customers, and automated experimentation.
The Top 5 Bio and Healthtech Startups in YC P26
From programmable cancer drugs to AI primary care, here are the standout bio and healthtech companies from Y Combinator's Spring 2026 batch.
The Top 4 LegalTech Startups in YC W26
Four AI-native legal startups from Y Combinator's Winter 2026 batch are rethinking how law firms operate, from contract review to immigration to personal injury intake.
The Top 12 DevTech Startups in YC W26
From AI agents infrastructure to self-healing CI pipelines, here are the standout developer tools companies from Y Combinator's Winter 2026 batch.
The Top 8 Robotics and Drone Startups in YC W26
From autonomous strike drones to robot cowboys, here are the standout robotics and drone companies from Y Combinator's Winter 2026 batch.
The Top Bio and Health Startups in YC W26
From parasite-derived autoimmune drugs to AI-powered fish farming, these are the bio and health companies to watch from YC's Winter 2026 batch.
The Top 5 Robotics Startups from YC F25
From mosquito-killing drones to humanoid robots powered by artificial muscles, here are five robotics companies to watch from Y Combinator's Fall 2025 batch.
The Top Marketplace Startups in YC F25
A look at four marketplace startups from Y Combinator's Fall 2025 batch tackling resale, tabletop gaming, robotics data, and prediction markets.