Companies

Every startup from YC, 500 Global, Plug and Play and 6 more programs, newest cohort first, with program, category and status

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1,629 companies · 878 AI, 187 data, 1,629 devtools

Company	Category	Status	Program
/dev/fast/dev/fast is the AI-native code forgeActiveAI, Devtools	AI, Devtools	Active	YCW26
21stUI building blocks for the agentic internetActiveAI, Devtools	AI, Devtools	Active	YCW26
AemonThe Forward-Deployed AI Research EngineerActiveAI, Devtools	AI, Devtools	Active	YCW26
AnchorheadEvals for frontier research agentsActiveAI, Devtools	AI, Devtools	Active	YCW26
ApproximaYour software should build itself.ActiveAI, Devtools	AI, Devtools	Active	YCW26
ARC Prize FoundationAI benchmarks that measure general intelligence and inspire new ideasActiveAI, Devtools	AI, Devtools	Active	YCW26
Aurorin CADClaude code for Mechanical EngineersActiveAI, Devtools	AI, Devtools	Active	YCW26
Autumn AIEverything on anyone.ActiveDevtools	Devtools	Active	YCW26
BidflowAI Takeoffs for ElectricalActiveAI, Devtools	AI, Devtools	Active	YCW26
CanaryAdversarial AI that breaks your AIActiveAI, Devtools	AI, Devtools	Active	YCW26
CaptainSelf-tuning file search for AI agentsActiveAI, Data, Devtools	AI, Data, Devtools	Active	YCW26
CascadeDistilling Proprietary IntelligenceActiveDevtools	Devtools	Active	YCW26
ChamberThe AIOps Agent for ML TeamsActiveAI, Devtools	AI, Devtools	Active	YCW26
CompresrLLM context compression for better accuracyActiveAI, Devtools	AI, Devtools	Active	YCW26
CorelayerAI production engineer for regulated industriesActiveAI, Devtools	AI, Devtools	Active	YCW26
Crosslayer LabsProtect, monitor and defend your Internet presenceActiveDevtools	Devtools	Active	YCW26
Cumulus LabsThe Fastest Multimodal Inference OSActiveAI, Devtools	AI, Devtools	Active	YCW26
DiditInfrastructure for identity and fraud.ActiveAI, Devtools	AI, Devtools	Active	YCW26
EmdashOpen-source Agentic Development EnvironmentActiveAI, Devtools	AI, Devtools	Active	YCW26
End CloseAI powered reconciliation for high-volume payments companiesActiveAI, Data, Devtools	AI, Data, Devtools	Active	YCW26
EnvariantInterpretability and reasoning infra for foundation models.ActiveAI, Devtools	AI, Devtools	Active	YCW26
FernRL environments for robotics companiesActiveDevtools	Devtools	Active	YCW26
IncidentFoxAI SRE agent that triages, coordinates, and fixes production incidentsActiveAI, Devtools	AI, Devtools	Active	YCW26
Klaus AIFast and Safe OpenClaw on the cloudActiveDevtools	Devtools	Active	YCW26
MavenPayments Infrastructure for Conversational AgentsActiveAI, Devtools	AI, Devtools	Active	YCW26
MendralAI DevOps EngineerInactiveAI, Devtools	AI, Devtools	Inactive	YCW26
ModaHarness Engineering Infrastructure that developers love.ActiveAI, Devtools	AI, Devtools	Active	YCW26
OpenSpecPlan mode for complex featuresActiveAI, Devtools	AI, Devtools	Active	YCW26
OrthogonalAgentic Payments for APIsActiveAI, Devtools	AI, Devtools	Active	YCW26
OssusIntelligence for cultural institutionsActiveAI, Devtools	AI, Devtools	Active	YCW26
OvershootAI Infra for real-time vision applicationsActiveAI, Devtools	AI, Devtools	Active	YCW26
Piris LabsThe Networking Layer of AIActiveAI, Devtools	AI, Devtools	Active	YCW26
Quotient LabsUse Claude Code at 47% less cost in one line of installation.ActiveAI, Devtools	AI, Devtools	Active	YCW26
REV1Claude Code for Mechanical EngineersActiveDevtools	Devtools	Active	YCW26
Rhizome AIAgent Platform for Life SciencesActiveAI, Devtools	AI, Devtools	Active	YCW26
RunAnywhereFastest inference anywhere: open models on-prem, hosted or on-deviceActiveAI, Devtools	AI, Devtools	Active	YCW26
SalusGuardrails to validate your agent's actions before they executeActiveAI, Devtools	AI, Devtools	Active	YCW26
ShofoThe World's Largest Video LibraryActiveAI, Data, Devtools	AI, Data, Devtools	Active	YCW26
shortkitMedia infra for consumer appsActiveDevtools	Devtools	Active	YCW26
SkillsyncNotion for AI chatsActiveAI, Devtools	AI, Devtools	Active	YCW26
SparklesMake everyone on your team an engineerActiveDevtools	Devtools	Active	YCW26
Synthetic SciencesInfrastructure for Autonomous ScienceActiveDevtools	Devtools	Active	YCW26
UnifoldMulti-chain deposit and payment infrastructureActiveDevtools	Devtools	Active	YCW26
ValenceUnified prediction markets trading platformActiveDevtools	Devtools	Active	YCW26
Visibl SemiconductorsCustom silicon for power electronicsActiveAI, Devtools	AI, Devtools	Active	YCW26
VOYGRReal-world place intelligence for AI apps and agentsActiveAI, Devtools	AI, Devtools	Active	YCW26
ZatannaTurning all software into agent-first APIsActiveAI, Devtools	AI, Devtools	Active	YCW26
ZeroSettleDrop-in Direct Billing SDK for In-App PurchasesActiveDevtools	Devtools	Active	YCW26
AmikaInfra to build your own software factoryActiveAI, Devtools	AI, Devtools	Active	YCF25
AntigenContinuous offensive security for the enterprise.ActiveAI, Devtools	AI, Devtools	Active	YCF25
Bolna AIVoice AI to enable India's next billionActiveAI, Devtools	AI, Devtools	Active	YCF25
BrickantaAgentic AI for Society BuildersActiveAI, Devtools	AI, Devtools	Active	YCF25
CaddyYour Personal AI for everyday work. Lives in your texts.ActiveAI, Devtools	AI, Devtools	Active	YCF25
CoastsLocalhost service isolation and orchestration for git worktreesInactiveAI, Devtools	AI, Devtools	Inactive	YCF25
CompyleThe coding agent that actually collaborates with youActiveAI, Devtools	AI, Devtools	Active	YCF25
dari.devThe Routing Layer for AI AgentsActiveAI, Devtools	AI, Devtools	Active	YCF25
DomeA unified API for prediction markets, like Kalshi and PolymarketInactiveDevtools	Devtools	Inactive	YCF25
Expected ParrotSimulate your customers with AI agentsActiveAI, Devtools	AI, Devtools	Active	YCF25
FastshotLovable for mobile appsActiveAI, Devtools	AI, Devtools	Active	YCF25
hillclimbTraining Data for Recursive Self-ImprovementActiveAI, Devtools	AI, Devtools	Active	YCF25

Sources: each program's public company list, read twice a week. Not affiliated with Y Combinator or any other program. Logos via logo.dev; trademarks belong to their owners.

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