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Startups14,448Programs29

14,448 startups · 29 programs

Y Combinator

Pre-seed and seed, all sectors, three-month batch in San Francisco

ApplyPortfolio
Next deadline
n/a
Not published
Next batch
Jan 2027
Official · in 7w
Offer
$500,000
7% on a $125K post-money SAFE + $375K uncapped MFN SAFE
Batches a year
4
6,389 companies tracked

What it offers

Terms
YC invests $500,000: $125,000 on a post-money SAFE for 7% and $375,000 on an uncapped SAFE with an MFN provision. The investment is not contingent on milestones and YC charges no fees. Source
Where
San Francisco
Cadence
Four batches a year: winter, spring, summer and fall; each runs three months

Batches and deadlines

Y Combinator batches, upcoming first, with deadlines and company counts
BatchStarts
Coming up
W27on-time deadline November 2 at 8pm PT; decisions by December 11; interviews in November and December; late applications still consideredDeadline Nov 2Jan 2027in 7 weeks
Earlier
F26n/a
S26n/a
X26n/a
W26n/a
F25dates not listed on an official page foundn/a
S25dates not listed on an official page foundn/a
X25dates not listed on an official page foundn/a

Y Combinator companies, rising first

OtherHyLightUnmanned airships for inspecting our critical assetsYC S23ParisStartup →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 →OthereradNon-dilutive funding and payments in the Middle EastYC S22RiyadhStartup →OtherIcarusStratospheric birds for defenseYC F25Los AngelesStartup →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 →Other9 MothersCounter Drone Systems. $1.6m sales. We delivered for the DoW.YC X26AustinStartup →AIGeneral LegalElite AI law firm for high growth companiesYC W26Startup →OtherInstaAgentScale marketing campaigns across hundreds of personasYC X26San FranciscoStartup →AISazabiAI-native observability and security platformYC X26San FranciscoStartup →AISunflowerWe are building an AI-native telemedicine clinic for addiction. 🌻YC S26San FranciscoStartup →OtherBeyond Reach LabsSpace solar arrays that grow to the size of a football field in orbitYC W26New York CityStartup →AIVelaAI Recruiting Coordinator for Executive SearchYC W26San FranciscoStartup →OtherPloyPloy turns your website into your company's growth engine.YC X26San FranciscoStartup →AIParameterAI pentesting, that works!YC W26San FranciscoStartup →AIBrumbyRobot Cowboys that Herd Cattle with AI DronesYC W26SydneyStartup →AIComplirVanta for physical productsYC X26CopenhagenStartup →OtherCosmic RoboticsAutonomous construction on Earth and beyondYC S26San FranciscoStartup →AIIgnition BenefitsThe AI-Native Benefits BrokerageYC F26Los AngelesStartup →OtherEdgerunMilitary exoskeletonsYC S26San FranciscoStartup →AIIsengard Industries IncMass-produced AI strike systems and Counter-UASYC S26San FranciscoStartup →AIUplaneReplace marketing agencies with AIYC F25San FranciscoStartup →AIBioStack PlatformsReal world training envs for healthcare AI modelsYC X26San FranciscoStartup →AIJinbaAutomate enterprise workflows through chatYC W26Startup →AIBrickantaAgentic AI for Society BuildersYC F25StockholmStartup →AIAcquiredOnyxOpen Source AI ChatYC W24San FranciscoStartup →AIAsendia AIAI recruiters for staffing agenciesYC X26San FranciscoStartup →AIInLoop RoboticsRobotic arms that pick and pack your orders.YC X26BYStartup →OtherIntelligence FactoryHuman Intelligence for RobotsYC X26New York CityStartup →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 →
Company
HyLightUnmanned airships for inspecting our critical assetsteam of 373 programsYC S23 +2ActiveOther
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
eradNon-dilutive funding and payments in the Middle Eastteam of 52 programsYC S22 +1ActiveOther
IcarusStratospheric birds for defenseteam of 50hiringYC F25ActiveOther
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
9 MothersCounter Drone Systems. $1.6m sales. We delivered for the DoW.team of 19hiringYC X26ActiveOther
General LegalElite AI law firm for high growth companiesteam of 40YC W26ActiveAI
InstaAgentScale marketing campaigns across hundreds of personasteam of 102 programsYC X26 +1ActiveOther
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
Beyond Reach LabsSpace solar arrays that grow to the size of a football field in orbitteam of 15hiringYC W26ActiveOther
VelaAI Recruiting Coordinator for Executive Searchteam of 15hiringYC W26ActiveAI
PloyPloy turns your website into your company's growth engine.team of 14hiringYC X26ActiveOther
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
Cosmic RoboticsAutonomous construction on Earth and beyondteam of 82 programsYC S26 +1ActiveOther
Ignition BenefitsThe AI-Native Benefits Brokerageteam of 12hiringYC F26ActiveAI
EdgerunMilitary exoskeletonsteam of 12hiringYC S26ActiveOther
Isengard Industries IncMass-produced AI strike systems and Counter-UASteam of 30YC S26ActiveAI
UplaneReplace marketing agencies with AIteam of 26hiringYC F25ActiveAI, Data
BioStack PlatformsReal world training envs for healthcare AI modelsteam of 11hiringYC X26ActiveAI, Data
JinbaAutomate enterprise workflows through chatteam of 11hiringYC W26ActiveAI
BrickantaAgentic AI for Society Buildersteam of 25hiringYC F25ActiveAI, Devtools
OnyxOpen Source AI Chat32.2k starsteam of 20YC W24AcquiredAI, Data, Devtools
Asendia AIAI recruiters for staffing agenciesteam of 10hiringYC X26ActiveAI
InLoop RoboticsRobotic arms that pick and pack your orders.team of 10hiringYC X26ActiveAI
Intelligence FactoryHuman Intelligence for Robotsteam of 10hiringYC X26ActiveOther
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

About Y Combinator

Run by
Y Combinator
Companies from
YC's public company directory, via the yc-oss mirror
Dates checked
2026-09-25, from 7 official pages
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