Companies
5,948 · full YC directory
Spring 2026
ReasonBlocksThe runtime layer that makes AI agents cheaper and more reliable
RefortifaiAI Agents for Analog Circuit Design
RegbaseTracking global laws, grants and consultations
RentAHumanMarketplace for AI agents to hire humans.
ReplicasBackground coding agents for engineering teams
ResultWhere new internet entrepreneurs build and run their companies
RevnuThe AI that replaces your growth team
River MarketsPrime brokerage for prediction markets
RudusAI Takeoffs Built for Concrete
RuntimeSandboxed coding agents for everyone on your team.
SaffronHelping your company find 10x engineers.
Salesgraphthe context layer for fast moving sales teams
Saudara AIAI Native Sourcing Broker
SazabiThe AI-native observability platform for fast-moving engineering…
ScopeWe make your product discoverable and usable by any AI agent
SherpaTurn more website visitors into customers
SidekickAI-powered SMS assistant for deskless workers.
SilmarilPrompt injection defense that is self-healing
SmartbaseAutomated order entry for manufacturers
SoriaAI Bloomberg Terminal built for Healthcare (and beyond)
StableBrowseBrowser Layer for AI agents
StageCode review platform for AI generated code
Standard SignalHedge fund where AI researches and executes every trade
StandoutAgentic hiring marketplace
SuperlogObservability that installs itself and fixes the bugs it finds.
SupersetThe IDE for the AI Agents Era
Surtr Defense SystemsThe open operating system for counter-UAS
Synphonyrobots & software for farms
TaigaFull-stack Medical Billing Services
TakeCareOSBuilding infrastructure for AI-native care providers
TaskletThe cloud agent operating system for knowledge work
Tenet IndustriesLow-cost, mass-produced strike drones
TesterArmyTest your app with AI, catch bugs before users do
The Company CompanyThe last agent your company will ever need.
ThomasThe first AI founder: a virtual human who runs his own companies.
Totalisderivative layer for prediction markets
TrellisThe operating layer for the next hospitality platform
TwolabsHumanoid robots for caregiving.
Uno WalletThe AI wallet that picks the best card at checkout.
UserlensAI CSM that never misses churn and upsells.
ValCtrlValCtrl is the world model for Prediction Finance, and Kassandre…
VoquillThe AI coworker that helps pathologists work cases faster
WalterAI Employee for Manufacturing Operations
WatoShared memory, tools, and workflows for agents across teams
WealorAI-native platform for wealth managers
WithAICustom command centers for hedge funds
YouArtPatreon for AI originals
Zibra LabsDistribute Compute for AI
