Top accelerator startups

14,448 startups · 29 programs

YC Fall 2025

146 companies · 88% AI · 13 data · 38 devtools · started Sep 2025

The F25 companies

AIHypercubicAgentic AI for Mainframe Operations and ModernizationYC F25San FranciscoStartup →OtherIcarusStratospheric birds for defenseYC F25Los AngelesStartup →AIEfferenceAn AI startup in Y Combinator's Fall 2025 batch, based in San Francisco.YC F25San FranciscoStartup →AIUplaneReplace marketing agencies with AIYC F25San FranciscoStartup →AIBrickantaAgentic AI for Society BuildersYC F25StockholmStartup →AIBolna AIVoice AI to enable India's next billionYC F25BengaluruStartup →AIComplyDoGlobal Compliance for EnterprisesYC F25BerlinStartup →AISembleTakeoffs, design, and field work. Powered by AI.YC F25San FranciscoStartup →AIBrickwiseAI property manager for landlords and estate agentsYC F25LondonStartup →AIStructured AIThe AI drawing review platform for architects and engineers.YC F25New York CityStartup →AIZalosHire Zalos AI workers to run your finance departmentYC F25LondonStartup →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 →OtherSava Trust CompanyBuilding the future of trustsYC F25New York CityStartup →OtherWardstoneThe Modular Interceptor PlatformYC F25Los AngelesStartup →OtherParametricPhysical businesses that run themselvesYC F25San FranciscoStartup →AIAcquiredRemedyAI Agents for PharmaciesYC F25Startup →AIAllus AITransforming manufacturing with our next-gen Vision Foundation ModelYC F25AtlantaStartup →OtherAnswerThisEnd-to-end workspace to accelerate scientific discoveryYC F25San FranciscoStartup →AIitemThe AI-Native CRM that works for youYC F25San FranciscoStartup →AIKarumiThe Waymo of Personalized demosYC F25Startup →AISF TensorInfrastructure for AI labs to focus on research.YC F25San FranciscoStartup →AILexiAI Operating System for Legal TeamsYC F25San FranciscoStartup →AIAirCaps AIVoice AI that hears what other models miss.YC F25San FranciscoStartup →AIAntigenContinuous offensive security for the enterprise.YC F25San FranciscoStartup →AIDiligenceSquaredAI-powered market due diligence for investment decisionsYC F25New York CityStartup →AIFernstoneAI-native insurance brokerage.YC F25New York CityStartup →AIImagine AIWe reverse engineer B2B growth, starting with LinkedIn.YC F25San FranciscoStartup →AIJarminAI Employees for human-level rolesYC F25San FranciscoStartup →AIKoyalAgentic AI Filmmaking PlatformYC F25San FranciscoStartup →AIMossReal-time semantic search for Conversational AIYC F25San FranciscoStartup →OtherAmeraAutomating claims processing workflows for health insurance payers.YC F25New York CityStartup →AITreliumAI Agents for Enterprise Wide OperationsYC F25San FranciscoStartup →AIDarwinRobot technicians for AI infrastructureYC F25San FranciscoStartup →AIDeeptraceAI agents for on-callYC F25San FranciscoStartup →AIMetorialAgentic infrastructure to power AI-native companies.YC F25ViennaStartup →AIZarnaAI Associates for Middle-Market Private EquityYC F25San FranciscoStartup →AIAbsurdThe production canvas for AI film teamsYC F25Los AngelesStartup →AIMOVEdotAI Agents for Hardware EngineeringYC F25San FranciscoStartup →AIAspectIntelligent media storage for creative teams.YC F25New York CityStartup →AIDigipalsThe future of Social in the age of AIYC F25San FranciscoStartup →AIExonicExonic is an AI-native cell and gene therapeutics company.YC F25San FranciscoStartup →AIFifth DoorCreate and play games with AIYC F25San FranciscoStartup →OtherKalpa LabsScaling Generalist Speech modelsYC F25San FranciscoStartup →AILightberryRobots with soulYC F25San FranciscoStartup →AIMadeThisThe autonomous business platformYC F25San FranciscoStartup →AIMSPilotTurn AI adoption into a recurring revenue line.YC F25San FranciscoStartup →OtherProxAir-breathing hypersonics for scale.YC F25HawthorneStartup →AIRovi HealthAI healthcare concierge for employeesYC F25New York CityStartup →AIScott AIThe planning layer for teams that build with coding agentsYC F25New York CityStartup →AISourcebotHelping humans and AI agents understand massive codebasesYC F25San FranciscoStartup →AIBraviAI operating system for home improvement manufacturersYC F25New York CityStartup →AICranston AIAI Tax prep and accounting software for CPA firmsYC F25San FranciscoStartup →AILeadbayQualified leads for agentic workflows.YC F25San FranciscoStartup →AIZavoUnlocking the world’s most valuable data for frontier AI.YC F25LondonStartup →AIRedaptoIntelligence that moves the worldYC F25BengaluruStartup →AISellRazeThe fastest way to sell online.YC F25San FranciscoStartup →AISpecific LabsReal World Environments and Data for AIYC F25San FranciscoStartup →OtherTornyolWe build micro-drones that kill mosquitoes.YC F25ParisStartup →AIAlderAI employees for finance, starting with accounts receivable.YC F25San FranciscoStartup →AIFlickWe Handle AI. You Direct Films.YC F25Santa BarbaraStartup →AILayersImprove your appearance by measuring, understanding, and tracking…YC F25San FranciscoStartup →AILemmaProduction Monitoring for AI agentsYC F25San FranciscoStartup →AILogicalProactive AI that knows what's importantYC F25San FranciscoStartup →AINessieThe shared context layer for recursive companies.YC F25San FranciscoStartup →AINucleoThe first Agentic platform for OncologyYC F25San FranciscoStartup →OtherSelfinInstitutional liquidity across prediction marketsYC F25San FranciscoStartup →AIUnsiloed AIAPI for parsing multimodal unstructured dataYC F25San FranciscoStartup →AIAtlasGridAccelerate Product IterationYC F25San FranciscoStartup →AIMultifactorZero-trust authentication, authorization, and auditing for AI agentsYC F25San FranciscoStartup →AIPatent WatchAI for detecting patent infringementsYC F25San FranciscoStartup →AISciloopExpert STEM reasoning data for frontier AI labs.YC F25San FranciscoStartup →AISorceTinder for jobsYC F25San FranciscoStartup →AICaddyYour Personal AI for everyday work. Lives in your texts.YC F25New York CityStartup →AICaseyCasey is an AI-native commercial insurance brokerageYC F25San FranciscoStartup →AICrunchedExcel AI analyst for Power UsersYC F25OsloStartup →AIExpected ParrotSimulate your customers with AI agentsYC F25BostonStartup →AILua Global IncThe mid-market agent platformYC F25LondonStartup →AIPiggy RoboticsHumanoid robots that do your chores for the price of an iPhone!YC F25LondonStartup →AIs2.devAPI for unlimited, durable, real-time streamsYC F25San FranciscoStartup →AIAnto BiosciencesA Foundation Model for Microbial Communities.YC F25San FranciscoStartup →AIAutomax.aiAI native real-estate appraisal firmYC F25San FranciscoStartup →AIClerkedAI clerks that automate your payablesYC F25San FranciscoStartup →AICodycoThe AI Reservation Team for Hotel GroupsYC F25BYStartup →AIDenkiThe full-stack AI financial audit firmYC F25San FranciscoStartup →AIEfficient Computation Inc.building principled reinforcement learning environmentsYC F25BengaluruStartup →AIGentle HealthThe healthcare you want without the hassleYC F25AustinStartup →AIhillclimbTraining Data for Recursive Self-ImprovementYC F25San FranciscoStartup →AILapisAI that creates and runs ads, end-endYC F25San FranciscoStartup →AILunaBillAI Voice callers for healthcare billing teamsYC F25San FranciscoStartup →AIMarkItCompliance that makes products ready for global markets.YC F25AtlantaStartup →AIOpenrollThe AI workforce for People and Finance teamsYC F25StockholmStartup →DataParseBuild an API to interact with any website.YC F25San FranciscoStartup →AIBoom AIAI agents that recover lost revenue through real conversations.YC F25Mexico CityStartup →AICortex AILarge-scale real-world robot & human data for embodied AIYC F25San FranciscoStartup →AIFastshotLovable for mobile appsYC F25ThessalonikiStartup →AIFreeport MarketsTrade AnythingYC F25New York CityStartup →AIGoldbridgeRamp for Real EstateYC F25Startup →
Company
HypercubicAgentic AI for Mainframe Operations and Modernizationteam of 3on 3 Glyph sourcesActiveAI, Devtools
IcarusStratospheric birds for defenseteam of 50hiringActiveOther
EfferenceAn AI startup in Y Combinator's Fall 2025 batch, based in San Francisco.team of 122 programsActiveAI
UplaneReplace marketing agencies with AIteam of 26hiringActiveAI, Data
BrickantaAgentic AI for Society Buildersteam of 25hiringActiveAI, Devtools
Bolna AIVoice AI to enable India's next billionteam of 21hiringActiveAI, Devtools
ComplyDoGlobal Compliance for Enterprisesteam of 17hiringActiveAI
SembleTakeoffs, design, and field work. Powered by AI.team of 14hiringActiveAI
BrickwiseAI property manager for landlords and estate agentsteam of 12hiringActiveAI
Structured AIThe AI drawing review platform for architects and engineers.team of 11hiringActiveAI
ZalosHire Zalos AI workers to run your finance departmentteam of 10hiringActiveAI
AsideThe browser built to do real work for youteam of 8hiringActiveAI
Autonomous Technologies GroupSuperintelligent financial advisorteam of 8hiringActiveAI
Clicks HealthAI agents for your healthcare back-office operations.team of 8hiringActiveAI
HyperspellYour Company Brainteam of 8hiringActiveAI, Data, Devtools
Sava Trust CompanyBuilding the future of truststeam of 8hiringActiveOther
WardstoneThe Modular Interceptor Platformteam of 8hiringActiveOther
ParametricPhysical businesses that run themselvesteam of 7hiringActiveOther
RemedyAI Agents for Pharmaciesacquiredteam of 2AcquiredAI
Allus AITransforming manufacturing with our next-gen Vision Foundation Modelteam of 6hiringActiveAI
AnswerThisEnd-to-end workspace to accelerate scientific discoveryteam of 6hiringActiveOther
itemThe AI-Native CRM that works for youteam of 6hiringActiveAI
KarumiThe Waymo of Personalized demosteam of 6hiringActiveAI
SF TensorInfrastructure for AI labs to focus on research.team of 6hiringActiveAI, Devtools
LexiAI Operating System for Legal Teamsteam of 15ActiveAI
AirCaps AIVoice AI that hears what other models miss.team of 5hiringActiveAI, Devtools
AntigenContinuous offensive security for the enterprise.team of 5hiringActiveAI, Devtools
DiligenceSquaredAI-powered market due diligence for investment decisionsteam of 5hiringActiveAI, Data
FernstoneAI-native insurance brokerage.team of 5hiringActiveAI
Imagine AIWe reverse engineer B2B growth, starting with LinkedIn.team of 5hiringActiveAI
JarminAI Employees for human-level rolesteam of 5hiringActiveAI
KoyalAgentic AI Filmmaking Platformteam of 5hiringActiveAI
MossReal-time semantic search for Conversational AIteam of 5hiringActiveAI, Devtools
AmeraAutomating claims processing workflows for health insurance payers.team of 12ActiveOther
TreliumAI Agents for Enterprise Wide Operationsteam of 11ActiveAI
DarwinRobot technicians for AI infrastructureteam of 4hiringActiveAI
DeeptraceAI agents for on-callteam of 4hiringActiveAI
MetorialAgentic infrastructure to power AI-native companies.team of 4hiringActiveAI
ZarnaAI Associates for Middle-Market Private Equityteam of 4hiringActiveAI
AbsurdThe production canvas for AI film teamsteam of 10ActiveAI
MOVEdotAI Agents for Hardware Engineeringteam of 10ActiveAI, Devtools
AspectIntelligent media storage for creative teams.team of 3hiringActiveAI
DigipalsThe future of Social in the age of AIteam of 3hiringActiveAI
ExonicExonic is an AI-native cell and gene therapeutics company.team of 3hiringActiveAI
Fifth DoorCreate and play games with AIteam of 3hiringActiveAI
Kalpa LabsScaling Generalist Speech modelsteam of 3hiringActiveOther
LightberryRobots with soulteam of 3hiringActiveAI
MadeThisThe autonomous business platformteam of 3hiringActiveAI
MSPilotTurn AI adoption into a recurring revenue line.team of 3hiringActiveAI, Devtools
ProxAir-breathing hypersonics for scale.team of 3hiringActiveOther
Rovi HealthAI healthcare concierge for employeesteam of 3hiringActiveAI
Scott AIThe planning layer for teams that build with coding agentsteam of 3hiringActiveAI, Devtools
SourcebotHelping humans and AI agents understand massive codebasesteam of 3hiringActiveAI, Devtools
BraviAI operating system for home improvement manufacturersteam of 8ActiveAI
Cranston AIAI Tax prep and accounting software for CPA firmsteam of 8ActiveAI
LeadbayQualified leads for agentic workflows.team of 8ActiveAI
ZavoUnlocking the world’s most valuable data for frontier AI.team of 8ActiveAI, Data
RedaptoIntelligence that moves the worldteam of 7ActiveAI
SellRazeThe fastest way to sell online.team of 7ActiveAI
Specific LabsReal World Environments and Data for AIteam of 7ActiveAI
TornyolWe build micro-drones that kill mosquitoes.team of 7ActiveOther
AlderAI employees for finance, starting with accounts receivable.team of 2hiringActiveAI
FlickWe Handle AI. You Direct Films.team of 2hiringActiveAI
LayersImprove your appearance by measuring, understanding, and tracking…team of 2hiringActiveAI
LemmaProduction Monitoring for AI agentsteam of 2hiringActiveAI, Data, Devtools
LogicalProactive AI that knows what's importantteam of 2hiringActiveAI
NessieThe shared context layer for recursive companies.team of 2hiringActiveAI
NucleoThe first Agentic platform for Oncologyteam of 2hiringActiveAI
SelfinInstitutional liquidity across prediction marketsteam of 2hiringActiveOther
Unsiloed AIAPI for parsing multimodal unstructured datateam of 2hiringActiveAI, Devtools
AtlasGridAccelerate Product Iterationteam of 6ActiveAI, Data
MultifactorZero-trust authentication, authorization, and auditing for AI agentsteam of 6ActiveAI
Patent WatchAI for detecting patent infringementsteam of 6ActiveAI
SciloopExpert STEM reasoning data for frontier AI labs.team of 6ActiveAI, Data, Devtools
SorceTinder for jobsteam of 6ActiveAI
CaddyYour Personal AI for everyday work. Lives in your texts.team of 5ActiveAI, Devtools
CaseyCasey is an AI-native commercial insurance brokerageteam of 5ActiveAI
CrunchedExcel AI analyst for Power Usersteam of 5ActiveAI, Data
Expected ParrotSimulate your customers with AI agentsteam of 5ActiveAI, Devtools
Lua Global IncThe mid-market agent platformteam of 5ActiveAI, Devtools
Piggy RoboticsHumanoid robots that do your chores for the price of an iPhone!team of 5ActiveAI
s2.devAPI for unlimited, durable, real-time streamsteam of 5ActiveAI, Data, Devtools
Anto BiosciencesA Foundation Model for Microbial Communities.team of 4ActiveAI
Automax.aiAI native real-estate appraisal firmteam of 4ActiveAI
ClerkedAI clerks that automate your payablesteam of 4ActiveAI
CodycoThe AI Reservation Team for Hotel Groupsteam of 4ActiveAI
DenkiThe full-stack AI financial audit firmteam of 4ActiveAI
Efficient Computation Inc.building principled reinforcement learning environmentsteam of 4ActiveAI, Devtools
Gentle HealthThe healthcare you want without the hassleteam of 4ActiveAI
hillclimbTraining Data for Recursive Self-Improvementteam of 4ActiveAI, Devtools
LapisAI that creates and runs ads, end-endteam of 4ActiveAI
LunaBillAI Voice callers for healthcare billing teamsteam of 4ActiveAI
MarkItCompliance that makes products ready for global markets.team of 4ActiveAI
OpenrollThe AI workforce for People and Finance teamsteam of 4ActiveAI
ParseBuild an API to interact with any website.team of 4ActiveData, Devtools
Boom AIAI agents that recover lost revenue through real conversations.team of 3ActiveAI
Cortex AILarge-scale real-world robot & human data for embodied AIteam of 3ActiveAI
FastshotLovable for mobile appsteam of 3ActiveAI, Devtools
Freeport MarketsTrade Anythingteam of 3ActiveAI
GoldbridgeRamp for Real Estateteam of 3ActiveAI

About F25

Every company, one tile each

By category

F25 by category

Where are they now

F25 by status

Top tags in F25

  • Developer Tools15
  • AI Assistant10
  • Robotics9
  • Generative AI9
  • Consumer8
  • Infrastructure7
  • Health Tech7
  • Analytics6
  • Finance6
  • Hardware5