Top accelerator startups

Startups14,448Programs29

14,448 startups · 29 programs

Active startups

4,418 companies listed as active by YC or their program's page · 3,010 in AI, data or developer tools

Active: data, AI and devtools

AIHuman ArchivePhysical AI data labYC W26San FranciscoStartup →AIAdalat AIAI OS transforming courts, accelerating justiceYC F26BengaluruStartup →AIHubReal-world training data for frontier AI labs and robotics.YC X26San FranciscoStartup →AIPocketTake Notes in the Real WorldYC W26San FranciscoStartup →AIHypercubicAgentic AI for Mainframe Operations and ModernizationYC F25San FranciscoStartup →AIBalanceFull-Stack AI AccountingYC W26LondonStartup →AIEfferenceAn AI startup in Y Combinator's Fall 2025 batch, based in San Francisco.YC F25San FranciscoStartup →AIPerit.AIExpert-collected voice, egocentric and RL training data for frontier…YC F26San FranciscoStartup →AIGeneral LegalElite AI law firm for high growth companiesYC W26Startup →AISazabiAI-native observability and security platformYC X26San FranciscoStartup →AISunflowerWe are building an AI-native telemedicine clinic for addiction. 🌻YC S26San FranciscoStartup →AIVelaAI Recruiting Coordinator for Executive SearchYC W26San FranciscoStartup →AIParameterAI pentesting, that works!YC W26San FranciscoStartup →AIBrumbyRobot Cowboys that Herd Cattle with AI DronesYC W26SydneyStartup →AIComplirVanta for physical productsYC X26CopenhagenStartup →AIIgnition BenefitsThe AI-Native Benefits BrokerageYC F26Los AngelesStartup →AIIsengard Industries IncMass-produced AI strike systems and Counter-UASYC S26San FranciscoStartup →AIUplaneReplace marketing agencies with AIYC F25San FranciscoStartup →AIBrickantaAgentic AI for Society BuildersYC F25StockholmStartup →AIBioStack PlatformsReal world training envs for healthcare AI modelsYC X26San FranciscoStartup →AIJinbaAutomate enterprise workflows through chatYC W26Startup →AIAsendia AIAI recruiters for staffing agenciesYC X26San FranciscoStartup →AIInLoop RoboticsRobotic arms that pick and pack your orders.YC X26BYStartup →AILab0AI FDEs to make your B2B SaaS Go Live in Days, not MonthsYC X26BengaluruStartup →AILanceAI Agents That Run Hotel Operations.YC W26San FranciscoStartup →AIMoritzGlobal AI-native law firm handling legal work with same-day turnaroundYC W26OsloStartup →AIRevionIntelligence for Automotive OperationsYC W26New York CityStartup →AIBolna AIVoice AI to enable India's next billionYC F25BengaluruStartup →AISpottAI-native ATS/CRM for recruiting firmsYC W25LeuvenStartup →AIClaraAI primary care doctorYC X26San FranciscoStartup →AIMinicorScalable windows desktop automationsYC X26San FranciscoStartup →AIVector LegalA premier AI-native law firm & legal operating system for Startups.YC W26San FranciscoStartup →AINox MetalsSupplying America's Industrial BaseYC S25DetroitStartup →AIRASPIREAutonomous Runtime SecurityYC X26CairoStartup →AIDiditInfrastructure for identity and fraud.YC W26CTStartup →AIComplyDoGlobal Compliance for EnterprisesYC F25BerlinStartup →AITorusSuperintelligence for InfrastructureYC S26San FranciscoStartup →AIe2ethe software verification layer for the agentic coding eraYC X26WarsawStartup →AIManiculeAgentRel, Devrel For AgentsYC X26San FranciscoStartup →AITaskletAgents that own the workYC X26San FranciscoStartup →AICardboardAI video editor (raw footage into finished videos)YC W26BengaluruStartup →AIOriginAI and Data for Cancer TherapeuticsYC W26San FranciscoStartup →AIPiris LabsThe Networking Layer of AIYC W26San FranciscoStartup →AIFlaiWe Bring Customers to Your DealershipYC S25San FranciscoStartup →AIGojiberry AIAI Go-To-Market agents for B2B teamsYC X26ParisStartup →AIRuntimeThe AI agent harness for payment teamsYC X26San FranciscoStartup →AIStandoutAgentic hiring marketplaceYC X26San FranciscoStartup →AIRamAInRamAIn - AI Employees with a computer to perform business tasks just…YC W26San FranciscoStartup →AISeeing SystemsModular AI-Commanded Drones for DefenceYC W26LondonStartup →AINaïveAutonomous Company InfrastructureYC X25San FranciscoStartup →AILegoraThe agentic operating system for legal workYC W24StockholmStartup →AISembleTakeoffs, design, and field work. Powered by AI.YC F25San FranciscoStartup →AIVoyagerOpen harness for video and other creative work.YC F26New York CityStartup →AIDeepReach Inc.Network for Physical AI Data BusinessYC S26San FranciscoStartup →AIAstraeaAI Operating System for Clinical DevelopmentYC X26San FranciscoStartup →AIPax HistoriaThe first AI-powered worldbuilding and gameplay platformYC W26San FranciscoStartup →AIPolymathSimulation environments for training & evaluating autonomous agentsYC W26San FranciscoStartup →AIBrickwiseAI property manager for landlords and estate agentsYC F25LondonStartup →AINdeaBuilding AGI that can innovate.YC W26RemoteStartup →AIGETASAPAI-Native Fresh Produce LogisticsYC S25San FranciscoStartup →AIStructured AIThe AI drawing review platform for architects and engineers.YC F25New York CityStartup →AISparkAI-powered workflows for energy infrastructureYC W24Startup →AIMango MedicalFoundation models for planning orthopedic surgeryYC W26San FranciscoStartup →AIRessl AITrain, eval and build autonomous agentsYC W26BengaluruStartup →AIMorphoAISoftware tool for designing robots and machinesYC X25New York CityStartup →AIHelios IntelligenceAt-home molecular body test: 1,000+ biomarkers from a drop of bloodYC F26BostonStartup →AIOrca AerospaceAI spacecraft operators that lives onboard the vehicleYC F26San FranciscoStartup →AIRuntime.siRobots that think in simulationYC F26San FranciscoStartup →AIAudunAI-native debt collection companyYC S26OsloStartup →AILemonLimeFully automated growth for small businessYC S26San FranciscoStartup →AILuca IQAPI-first tax engine for CPA firms and developersYC S26San FranciscoStartup →AIMochiWatch and create animeYC S26Los AngelesStartup →AIOoak DataWe turn company data into training dataYC S26San FranciscoStartup →AIPangoAgentic OS for e-commerce operationsYC S26New York CityStartup →AIPlutoLinkedIn for agentsYC S26San FranciscoStartup →AIPrescience, Inc.Superintelligent health insurance that keeps employees healthyYC S26San FranciscoStartup →AITryNearbyLocal creators for local businessesYC S26Los AngelesStartup →AIElyraAI Reservation System for RestaurantsYC X26StockholmStartup →AIInterfazeAI model built for high accuracy deterministic tasksYC X26San FranciscoStartup →AIJunoAI Health Assistant for Chronic IllnessYC X26LondonStartup →AIKugelAudioKugel is an on-prem Voice AI model supporting 30+ languagesYC X26BerlinStartup →AI10x ScienceThe AI-native platform for next-generation protein characterization.YC W26San FranciscoStartup →AICellTypeThe agentic drug company. We simulate human biology.YC W26New York CityStartup →AIMaywoodThe first finance-compliant proactive AI that runs 24/7YC W26New York CityStartup →AIRunAnywhereFastest inference anywhere: open models on-prem, hosted or on-deviceYC W26San FranciscoStartup →AIWaycoAI operator for medlegal casesYC W26New York CityStartup →AISalesPatriotSupply chain superintelligence for distribution and procurementYC W25San FranciscoStartup →AIArzanaAdaptive AI built for manufacturersYC X26New York CityStartup →AIZalosHire Zalos AI workers to run your finance departmentYC F25LondonStartup →AItruthsystemsAutomatically blocking risky behavior with real-time governance agentsYC S25San FranciscoStartup →AIHappyRobotIntelligence that runs your operations.YC S23San FranciscoStartup →AITolmoTolmo is the AI security platform that secures every layer of cloud…YC X26San FranciscoStartup →AILuelTurning everyday words and actions into usable training data.YC W26San FranciscoStartup →AIHarperAI-native commercial insurance brokerageYC W25San FranciscoStartup →AIHalluminateData and RL environments to automate knowledge workYC S25San FranciscoStartup →AISocratix AIAI coworkers for fraud and compliance teams.YC S25San FranciscoStartup →AIEpsilabLong horizon RL environments from real-life dataYC F26San FranciscoStartup →AISimanticFirmware simulation for AI agentsYC F26WaterlooStartup →AIVolarenThe personal investing agent that comes to youYC F26San FranciscoStartup →AICOACHThe AI Coach for in person sales reps.YC S26San FranciscoStartup →AIProvenMetalAI-native electronics manufacturing for the American industrial baseYC S26San FranciscoStartup →AISpekoOpenRouter for Voice AI: one API, every call on the best speech modelYC S26San FranciscoStartup →AICharacterQuiltComputer use agents to deploy enterprise marketing campaignsYC X26San FranciscoStartup →AIDiscovered MaterialsAI scientists to discover materials for the semiconductor industry.YC X26San FranciscoStartup →AIEden RoboticsAutonomous services for humanity.YC X26San FranciscoStartup →AIOpenWorkThe open source alternative to Claude CoworkYC X26San FranciscoStartup →AIParadev (formerly Superset)Building self-improving softwareYC X26San FranciscoStartup →AIprimitivecommunication for agentsYC X26San FranciscoStartup →AIZolvoAI for Commercial LendingYC X26San FranciscoStartup →AIAutumnThe people-intelligence company.YC W26San FranciscoStartup →AICorveraThe AI sales agent for CPG brandsYC W26San FranciscoStartup →AIStiltaAgentic AI for intellectual propertyYC W26StockholmStartup →AIAsideThe browser built to do real work for youYC F25San FranciscoStartup →AIAutonomous Technologies GroupSuperintelligent financial advisorYC F25New York CityStartup →AIClicks HealthAI agents for your healthcare back-office operations.YC F25ZHStartup →AIHyperspellYour Company BrainYC F25San FranciscoStartup →AIAgnost AIWe find where AI agents fail, then train better models to run them.YC S26San FranciscoStartup →AIDecaworkTraining company-specific models that approve AI actions.YC S26San FranciscoStartup →AICare GPAI agents to run primary healthcare operationsYC S26SydneyStartup →AISynphonyrobots & software for farmsYC X26San FranciscoStartup →
Company
Human ArchivePhysical AI data labteam of 100hiringYC W26ActiveAI
Adalat AIAI OS transforming courts, accelerating justiceteam of 80hiringYC F26ActiveAI
HubReal-world training data for frontier AI labs and robotics.team of 60hiringYC X26ActiveAI, Data, Devtools
PocketTake Notes in the Real Worldteam of 35hiringYC W26ActiveAI
HypercubicAgentic AI for Mainframe Operations and Modernizationteam of 3on 3 Glyph sourcesYC F25 +1ActiveAI, Devtools
BalanceFull-Stack AI Accountingteam of 20hiringYC W26ActiveAI
EfferenceAn AI startup in Y Combinator's Fall 2025 batch, based in San Francisco.team of 122 programsYC F25 +1ActiveAI
Perit.AIExpert-collected voice, egocentric and RL training data for frontier…team of 47YC F26ActiveAI, Data
General LegalElite AI law firm for high growth companiesteam of 40YC W26ActiveAI
SazabiAI-native observability and security platformteam of 10on 3 Glyph sourcesYC X26ActiveAI, Devtools
SunflowerWe are building an AI-native telemedicine clinic for addiction. 🌻team of 15hiringYC S26ActiveAI
VelaAI Recruiting Coordinator for Executive Searchteam of 15hiringYC W26ActiveAI
ParameterAI pentesting, that works!team of 14hiringYC W26ActiveAI
BrumbyRobot Cowboys that Herd Cattle with AI Dronesteam of 32 programsYC W26 +1ActiveAI
ComplirVanta for physical productsteam of 13hiringYC X26ActiveAI
Ignition BenefitsThe AI-Native Benefits Brokerageteam of 12hiringYC F26ActiveAI
Isengard Industries IncMass-produced AI strike systems and Counter-UASteam of 30YC S26ActiveAI
UplaneReplace marketing agencies with AIteam of 26hiringYC F25ActiveAI, Data
BrickantaAgentic AI for Society Buildersteam of 25hiringYC F25ActiveAI, Devtools
BioStack PlatformsReal world training envs for healthcare AI modelsteam of 11hiringYC X26ActiveAI, Data
JinbaAutomate enterprise workflows through chatteam of 11hiringYC W26ActiveAI
Asendia AIAI recruiters for staffing agenciesteam of 10hiringYC X26ActiveAI
InLoop RoboticsRobotic arms that pick and pack your orders.team of 10hiringYC X26ActiveAI
Lab0AI FDEs to make your B2B SaaS Go Live in Days, not Monthsteam of 10hiringYC X26ActiveAI
LanceAI Agents That Run Hotel Operations.team of 10hiringYC W26ActiveAI
MoritzGlobal AI-native law firm handling legal work with same-day turnaroundteam of 10hiringYC W26ActiveAI
RevionIntelligence for Automotive Operationsteam of 10hiringYC W26ActiveAI
Bolna AIVoice AI to enable India's next billionteam of 21hiringYC F25ActiveAI, Devtools
SpottAI-native ATS/CRM for recruiting firmsteam of 50on 4 Glyph sourcesYC W25ActiveAI
ClaraAI primary care doctorteam of 9hiringYC X26ActiveAI
MinicorScalable windows desktop automationsteam of 9hiringYC X26ActiveAI, Devtools
Vector LegalA premier AI-native law firm & legal operating system for Startups.team of 9hiringYC W26ActiveAI
Nox MetalsSupplying America's Industrial Baseteam of 52hiringYC S25ActiveAI
RASPIREAutonomous Runtime Securityteam of 52 programsYC X26 +1ActiveAI, Devtools
DiditInfrastructure for identity and fraud.team of 20YC W26ActiveAI, Devtools
ComplyDoGlobal Compliance for Enterprisesteam of 17hiringYC F25ActiveAI
TorusSuperintelligence for Infrastructureteam of 8hiringYC S26ActiveAI
e2ethe software verification layer for the agentic coding erateam of 8hiringYC X26ActiveAI, Devtools
ManiculeAgentRel, Devrel For Agentsteam of 8hiringYC X26ActiveAI, Devtools
TaskletAgents that own the workteam of 8hiringYC X26ActiveAI, Devtools
CardboardAI video editor (raw footage into finished videos)team of 8hiringYC W26ActiveAI
OriginAI and Data for Cancer Therapeuticsteam of 8hiringYC W26ActiveAI
Piris LabsThe Networking Layer of AIteam of 8hiringYC W26ActiveAI, Devtools
FlaiWe Bring Customers to Your Dealershipteam of 40hiringYC S25ActiveAI
Gojiberry AIAI Go-To-Market agents for B2B teamsteam of 7hiringYC X26ActiveAI
RuntimeThe AI agent harness for payment teamsteam of 7hiringYC X26ActiveAI
StandoutAgentic hiring marketplaceteam of 7hiringYC X26ActiveAI
RamAInRamAIn - AI Employees with a computer to perform business tasks just…team of 7hiringYC W26ActiveAI
Seeing SystemsModular AI-Commanded Drones for Defenceteam of 7hiringYC W26ActiveAI
NaïveAutonomous Company Infrastructureteam of 12on 4 Glyph sourcesYC X25ActiveAI, Devtools
LegoraThe agentic operating system for legal workteam of 900led by AccelYC W24ActiveAI
SembleTakeoffs, design, and field work. Powered by AI.team of 14hiringYC F25ActiveAI
VoyagerOpen harness for video and other creative work.team of 6hiringYC F26ActiveAI
DeepReach Inc.Network for Physical AI Data Businessteam of 6hiringYC S26ActiveAI
AstraeaAI Operating System for Clinical Developmentteam of 6hiringYC X26ActiveAI
Pax HistoriaThe first AI-powered worldbuilding and gameplay platformteam of 6hiringYC W26ActiveAI
PolymathSimulation environments for training & evaluating autonomous agentsteam of 6hiringYC W26ActiveAI
BrickwiseAI property manager for landlords and estate agentsteam of 12hiringYC F25ActiveAI
NdeaBuilding AGI that can innovate.team of 15YC W26ActiveAI
GETASAPAI-Native Fresh Produce Logisticsteam of 30hiringYC S25ActiveAI
Structured AIThe AI drawing review platform for architects and engineers.team of 11hiringYC F25ActiveAI
SparkAI-powered workflows for energy infrastructureteam of 53 programsYC W24 +2ActiveAI
Mango MedicalFoundation models for planning orthopedic surgeryteam of 32 programsYC W26 +1ActiveAI
Ressl AITrain, eval and build autonomous agentsteam of 32 programsYC W26 +1ActiveAI
MorphoAISoftware tool for designing robots and machinesteam of 122 programsYC X25 +1ActiveAI
Helios IntelligenceAt-home molecular body test: 1,000+ biomarkers from a drop of bloodteam of 5hiringYC F26ActiveAI
Orca AerospaceAI spacecraft operators that lives onboard the vehicleteam of 5hiringYC F26ActiveAI
Runtime.siRobots that think in simulationteam of 5hiringYC F26ActiveAI, Devtools
AudunAI-native debt collection companyteam of 5hiringYC S26ActiveAI
LemonLimeFully automated growth for small businessteam of 5hiringYC S26ActiveAI
Luca IQAPI-first tax engine for CPA firms and developersteam of 5hiringYC S26ActiveAI, Devtools
MochiWatch and create animeteam of 5hiringYC S26ActiveAI
Ooak DataWe turn company data into training datateam of 5hiringYC S26ActiveAI
PangoAgentic OS for e-commerce operationsteam of 5hiringYC S26ActiveAI
PlutoLinkedIn for agentsteam of 5hiringYC S26ActiveAI
Prescience, Inc.Superintelligent health insurance that keeps employees healthyteam of 5hiringYC S26ActiveAI
TryNearbyLocal creators for local businessesteam of 5hiringYC S26ActiveAI
ElyraAI Reservation System for Restaurantsteam of 5hiringYC X26ActiveAI
InterfazeAI model built for high accuracy deterministic tasksteam of 5hiringYC X26ActiveAI
JunoAI Health Assistant for Chronic Illnessteam of 5hiringYC X26ActiveAI
KugelAudioKugel is an on-prem Voice AI model supporting 30+ languagesteam of 5hiringYC X26ActiveAI
10x ScienceThe AI-native platform for next-generation protein characterization.team of 5hiringYC W26ActiveAI
CellTypeThe agentic drug company. We simulate human biology.team of 5hiringYC W26ActiveAI
MaywoodThe first finance-compliant proactive AI that runs 24/7team of 5hiringYC W26ActiveAI
RunAnywhereFastest inference anywhere: open models on-prem, hosted or on-deviceteam of 5hiringYC W26ActiveAI, Devtools
WaycoAI operator for medlegal casesteam of 5hiringYC W26ActiveAI
SalesPatriotSupply chain superintelligence for distribution and procurementteam of 302 programsYC W25 +1ActiveAI
ArzanaAdaptive AI built for manufacturersteam of 13YC X26ActiveAI
ZalosHire Zalos AI workers to run your finance departmentteam of 10hiringYC F25ActiveAI
truthsystemsAutomatically blocking risky behavior with real-time governance agentsteam of 62 programsYC S25 +1ActiveAI, Devtools
HappyRobotIntelligence that runs your operations.team of 80led by Andreessen HorowitzYC S23 +1ActiveAI
TolmoTolmo is the AI security platform that secures every layer of cloud…team of 12YC X26ActiveAI, Devtools
LuelTurning everyday words and actions into usable training data.team of 12YC W26ActiveAI
HarperAI-native commercial insurance brokerageteam of 252 programsYC W25 +1ActiveAI
HalluminateData and RL environments to automate knowledge workteam of 52 programsYC S25 +1ActiveAI
Socratix AIAI coworkers for fraud and compliance teams.team of 52 programsYC S25 +1ActiveAI
EpsilabLong horizon RL environments from real-life datateam of 4hiringYC F26ActiveAI, Data
SimanticFirmware simulation for AI agentsteam of 4hiringYC F26ActiveAI, Devtools
VolarenThe personal investing agent that comes to youteam of 4hiringYC F26ActiveAI
COACHThe AI Coach for in person sales reps.team of 4hiringYC S26ActiveAI
ProvenMetalAI-native electronics manufacturing for the American industrial baseteam of 4hiringYC S26ActiveAI
SpekoOpenRouter for Voice AI: one API, every call on the best speech modelteam of 4hiringYC S26ActiveAI, Devtools
CharacterQuiltComputer use agents to deploy enterprise marketing campaignsteam of 4hiringYC X26ActiveAI
Discovered MaterialsAI scientists to discover materials for the semiconductor industry.team of 4hiringYC X26ActiveAI
Eden RoboticsAutonomous services for humanity.team of 4hiringYC X26ActiveAI
OpenWorkThe open source alternative to Claude Coworkteam of 4hiringYC X26ActiveAI, Devtools
Paradev (formerly Superset)Building self-improving softwareteam of 4hiringYC X26ActiveAI, Devtools
primitivecommunication for agentsteam of 4hiringYC X26ActiveAI
ZolvoAI for Commercial Lendingteam of 4hiringYC X26ActiveAI
AutumnThe people-intelligence company.team of 4hiringYC W26ActiveAI
CorveraThe AI sales agent for CPG brandsteam of 4hiringYC W26ActiveAI, Data
StiltaAgentic AI for intellectual propertyteam of 4hiringYC W26ActiveAI
AsideThe browser built to do real work for youteam of 8hiringYC F25ActiveAI
Autonomous Technologies GroupSuperintelligent financial advisorteam of 8hiringYC F25ActiveAI
Clicks HealthAI agents for your healthcare back-office operations.team of 8hiringYC F25ActiveAI
HyperspellYour Company Brainteam of 8hiringYC F25ActiveAI, Data, Devtools
Agnost AIWe find where AI agents fail, then train better models to run them.2 programsteam of 2YC S26 +1ActiveAI, Data, Devtools
DecaworkTraining company-specific models that approve AI actions.2 programsteam of 2YC S26 +1ActiveAI, Devtools
Care GPAI agents to run primary healthcare operationsteam of 10YC S26ActiveAI
Synphonyrobots & software for farmsteam of 10YC X26ActiveAI, Data

All 4,418 active startups →

Share active, by YC batch

Share of each batch active
S05: 0%W06: 0%S06: 10%W07: 14%S07: 5%W08: 10%2008S08: 5%W09: 6%S09: 27%W10: 4%S10: 17%W11: 27%S11: 20%W12: 18%2012S12: 27%W13: 37%S13: 19%W14: 39%S14: 27%W15: 36%S15: 42%W16: 48%2016S16: 41%W17: 47%S17: 43%W18: 53%S18: 59%W19: 60%S19: 58%W20: 59%2020S20: 58%W21: 68%S21: 73%W22: 77%S22: 78%W23: 73%S23: 81%W24: 84%2024S24: 94%F24: 94%W25: 96%X25: 94%S25: 96%F25: 97%W26: 97%X26: 98%S26: 100%F26: 100%F26