Top accelerator startups

14,448 startups · 29 programs

YC Winter 2024

248 companies · 84% AI · 29 data · 72 devtools · started Jan 2024

The W24 companies

AIAcquiredOnyxOpen Source AI ChatYC W24San FranciscoStartup →AILegoraThe agentic operating system for legal workYC W24StockholmStartup →AISparkAI-powered workflows for energy infrastructureYC W24Startup →AIRaindropSentry for AI AgentsYC W24San FranciscoStartup →AICodeAnt AIAutonomous offensive and defensive cybersecurity platformYC W24San FranciscoStartup →OtherAstro MechanicaSupersonics for the new Jet AgeYC W24San FranciscoStartup →AIModel MLThe AI for Financial Services.YC W24LondonStartup →AIFurtherAIAI Workforce for the Insurance IndustryYC W24San FranciscoStartup →AIGreptileAI code review agent with complete context of your codebaseYC W24San FranciscoStartup →AIMomenticMo, the AI QA engineer that bug-bashes your app before every releaseYC W24San FranciscoStartup →AITrellis AIAccelerate Medication Access with AIYC W24San FranciscoStartup →AIArtisanAI employees that take on real work, starting with salesYC W24San FranciscoStartup →AIRetell AISupercharge Your Contact Center Operations with AI Phone AgentsYC W24San FranciscoStartup →AIGarageMarketplace for America's most essential assetsYC W24New York CityStartup →AIGreenboardModern OS for the financial back office.YC W24New York CityStartup →AIPointOneAI Time Platform for Law FirmsYC W24New York CityStartup →DataStacksyncReal-time and two-way sync between CRMs and DatabasesYC W24San FranciscoStartup →AIRoveEarn airline miles on hotels and everyday spend.YC W24New York CityStartup →AICirclebackAI-powered meeting notes and automationsYC W24San FranciscoStartup →Developer toolsBlacksmithThe fastest way to run your GitHub ActionsYC W24Startup →AIAlexAlex is the AI recruiter for hiring great people.YC W24San FranciscoStartup →AIReductoThe complete agentic document platformYC W24San FranciscoStartup →AIAcquiredStarJarStarjar automates inbound document processing workflows for hospitalsYC W24Startup →AIOffDealAI-native investment bank for small businessesYC W24New York CityStartup →AIOpenEnterprise AI customer supportYC W24AmmanStartup →AIRespanOpen-source, extensible AI gateway with observability and evalsYC W24San FranciscoStartup →AITamarind BioAI Inference Platform for Drug DiscoveryYC W24San FranciscoStartup →AIsync.AI lipsync tool for video content creatorsYC W24San FranciscoStartup →AIAndy AIFaster clinical documentation for home health nursesYC W24San FranciscoStartup →AIGumloopThe multiplayer AI agent builder. Let anyone build, IT controls accessYC W24San FranciscoStartup →AIZaymoTools for AI agents to run marketing for the world's biggest…YC W24LehiStartup →AIAcquiredTrieveAll-in-one API for search, RAG, & recommendationsYC W24San FranciscoStartup →AIAriniThe single platform to run all healthcare operationsYC W24San FranciscoStartup →AIClarionThe AI communication layer for healthcareYC W24New York CityStartup →AIDeepnightBuilding The Next Generation of Night Vision DevicesYC W24San FranciscoStartup →AIRetailReadyAn AI-powered supply chain compliance engineYC W24San FranciscoStartup →AIConduitAI Agents for HospitalityYC W24San FranciscoStartup →OtherHealiaModern health insurance for dual income familiesYC W24ColumbusStartup →OtherInfinityBusiness banking for cross-border SMBs & StartupsYC W24BengaluruStartup →AIUbicloudOpen source alternative to AWSYC W24San FranciscoStartup →AIProSightsData services for finance and operations at PE-backed companies.YC W24New York CityStartup →AIReformAI Agents for high-stakes work.YC W24San FranciscoStartup →OtherAcquiredSampleFlexible systems for clinical reasoning.YC W24San FranciscoStartup →OtherClevaGlobal neobank for emerging marketsYC W24San FranciscoStartup →AIAcquiredLuciteSupercharging Insurance Brokers & AdvisorsYC W24New York CityStartup →AISalvyMobile carrier for businesses in BrazilYC W24CuritibaStartup →AIEvent Horizon LabsAI research lab automating all of investingYC W24San FranciscoStartup →AIMonumintConversational AI purpose-built for financial servicesYC W24San FranciscoStartup →AIPiramidalFoundation Models for the BrainYC W24New York CityStartup →AITrueClaimTransparent, AI-powered healthcare TPA.YC W24San FranciscoStartup →AIZep AIThe unified context layer for enterprise dataYC W24San FranciscoStartup →AIInspectMind AIAI agent for construction drawings reviewYC W24San FranciscoStartup →AIDatacurveFrontier coding data for training and evaluating LLMsYC W24San FranciscoStartup →AIGetCruxAI Creative StrategistYC W24San FranciscoStartup →AIROEAI for risk and complianceYC W24San FranciscoStartup →AIAcquiredSpeckAI Notetaker that automates all your admin workYC W24San FranciscoStartup →AIAcquiredVerse TherapyConnecting All Ages with Speech Language PathologistsYC W24San FranciscoStartup →AISuretyNowAI-enabled Surety Bond BrokerYC W24AustinStartup →AITomaAI Applied ResearchYC W24San FranciscoStartup →AICloudCruiseThe developer platform for fast and reliable browser agentsYC W24San FranciscoStartup →AIOcular AIApplied AI Data Research Lab Encoding Human Expertise into Machines…YC W24San FranciscoStartup →AIParadigmA reimagined workspace with AI at its coreYC W24San FranciscoStartup →AIPivot RoboticsAI for Robot Arms in FactoriesYC W24San FranciscoStartup →AISensoControl what AI says about youYC W24TorontoStartup →Developer toolsMidenCard issuer processor and banking stack for businesses in Sub-…YC W24RotherhamStartup →OtherTriplyOperating system for travel businesses in Africa with embedded financeYC W24NairobiStartup →AIArtosAuthoring documents for life sciences in minutes, not months.YC W24San FranciscoStartup →AIForgeAI native freight forwarder and customs brokerYC W24New York CityStartup →AIGovernGPTThe RFP Platform Asset Managers AdoptYC W24MontrealStartup →AIHazelAI-enabled procurement for governmentYC W24New York CityStartup →OtherIndemniCargo Theft and Fraud Prevention PlatformYC W24San FranciscoStartup →AINavier AIAgent-Driven EngineeringYC W24San FranciscoStartup →AIOpencallPractice admin run by AIYC W24Startup →AISoniaValidated mental health support in your pocket, anytime.YC W24San FranciscoStartup →AITuesday LabsDelightful robotsYC W24New York CityStartup →AIYonduRobots to Automate FulfillmentYC W24Los AngelesStartup →AICommodityAIThe AI operating system for commodity operationsYC W24San FranciscoStartup →AIOpenmartLocal business data intelligence platformYC W24San FranciscoStartup →AIPowderAI Agents for precise document analysisYC W24San FranciscoStartup →AIYarnYarn is the video product for agentic GTM teams.YC W24New York CityStartup →AIAcquiredArcaneAIYC W24New York CityStartup →AIAcquiredBrowser BuddyA recommendation system for the InternetYC W24San FranciscoStartup →OtherAcquiredConsulThe Stablecoin Payouts PlatformYC W24New York CityStartup →AIAcquiredFocalAI video creation tool for TV shows and moviesYC W24San FranciscoStartup →AIAcquiredLumetricThe AI Analyst For Deal TeamsYC W24San FranciscoStartup →AIAcquiredResonanceSelf-improving content bank for marketingYC W24San FranciscoStartup →AIDriverContext for CodebasesYC W24AustinStartup →AIParallelAI agents for healthcare adminYC W24ParisStartup →AIDraftaidGo from 3D models to CAD drawings using AIYC W24TorontoStartup →AIRisottoRisotto auto-solves IT support requests using AIYC W24San FranciscoStartup →AIRyseThe secondary market for real estate leasesYC W24New York CityStartup →Developer toolsatopileWe make tools to design electronics circuit boards with codeYC W24San FranciscoStartup →AIBetterBasketSmart grocery pricing with AIYC W24San FranciscoStartup →AICarmaThe agentic workspace that runs construction operations for profitYC W24San FranciscoStartup →AIMeticulateMaking it easy for B2B sales teams to send stellar outboundYC W24San FranciscoStartup →AIShibolethShiboleth automates lending compliance for financial institutions…YC W24San FranciscoStartup →AITerrakottaAI platform for phone-first sellersYC W24SeattleStartup →AIThe Vibe CompanyAI-native agency that scales like software, run on our own AI agents.YC W24ParisStartup →AIUpsolve AIDeploy trustworthy data agent that know your businessYC W24Startup →AIVoicepanelEvals for productsYC W24Startup →
Company
OnyxOpen Source AI Chat32.2k starsteam of 20AcquiredAI, Data, Devtools
LegoraThe agentic operating system for legal workteam of 900led by AccelActiveAI
SparkAI-powered workflows for energy infrastructureteam of 53 programsActiveAI
RaindropSentry for AI Agentsled by Lightspeedteam of 9ActiveAI, Devtools
CodeAnt AIAutonomous offensive and defensive cybersecurity platformteam of 252 programsActiveAI, Devtools
Astro MechanicaSupersonics for the new Jet Ageteam of 522 programsActiveOther
Model MLThe AI for Financial Services.team of 180hiringActiveAI
FurtherAIAI Workforce for the Insurance Industryteam of 362 programsActiveAI
GreptileAI code review agent with complete context of your codebaseteam of 352 programsActiveAI, Devtools
MomenticMo, the AI QA engineer that bug-bashes your app before every releaseteam of 182 programsActiveAI, Devtools
Trellis AIAccelerate Medication Access with AIteam of 55hiringActiveAI, Data, Devtools
ArtisanAI employees that take on real work, starting with salesteam of 50hiringActiveAI
Retell AISupercharge Your Contact Center Operations with AI Phone Agentsteam of 50hiringActiveAI
GarageMarketplace for America's most essential assetsteam of 35hiringActiveAI
GreenboardModern OS for the financial back office.team of 35hiringActiveAI
PointOneAI Time Platform for Law Firmsteam of 35hiringActiveAI, Devtools
StacksyncReal-time and two-way sync between CRMs and Databasesteam of 34hiringActiveData
RoveEarn airline miles on hotels and everyday spend.team of 32hiringActiveAI
CirclebackAI-powered meeting notes and automationsteam of 82 programsActiveAI, Data, Devtools
BlacksmithThe fastest way to run your GitHub Actionson 4 Glyph sourcesteam of 3ActiveDevtools
AlexAlex is the AI recruiter for hiring great people.team of 30hiringActiveAI
ReductoThe complete agentic document platformteam of 30hiringActiveAI, Data, Devtools
StarJarStarjar automates inbound document processing workflows for hospitalsteam of 11acquiredAcquiredAI
OffDealAI-native investment bank for small businessesteam of 25hiringActiveAI
OpenEnterprise AI customer supportteam of 21hiringActiveAI, Devtools
RespanOpen-source, extensible AI gateway with observability and evalsteam of 20hiringActiveAI, Devtools
Tamarind BioAI Inference Platform for Drug Discoveryteam of 20hiringActiveAI
sync.AI lipsync tool for video content creatorsteam of 132 programsActiveAI
Andy AIFaster clinical documentation for home health nursesteam of 52 programsActiveAI
GumloopThe multiplayer AI agent builder. Let anyone build, IT controls accessteam of 44ActiveAI
ZaymoTools for AI agents to run marketing for the world's biggest…team of 19hiringActiveAI
TrieveAll-in-one API for search, RAG, & recommendationsteam of 7acquiredAcquiredAI, Data, Devtools
AriniThe single platform to run all healthcare operationsteam of 17hiringActiveAI
ClarionThe AI communication layer for healthcareteam of 16hiringActiveAI
DeepnightBuilding The Next Generation of Night Vision Devicesteam of 16hiringActiveAI
RetailReadyAn AI-powered supply chain compliance engineteam of 16hiringActiveAI
ConduitAI Agents for Hospitalityteam of 15hiringActiveAI
HealiaModern health insurance for dual income familiesteam of 15hiringActiveOther
InfinityBusiness banking for cross-border SMBs & Startupsteam of 15hiringActiveOther
UbicloudOpen source alternative to AWSteam of 15hiringActiveAI, Data, Devtools
ProSightsData services for finance and operations at PE-backed companies.team of 14hiringActiveAI, Data
ReformAI Agents for high-stakes work.team of 13hiringActiveAI
SampleFlexible systems for clinical reasoning.team of 5acquiredAcquiredOther
ClevaGlobal neobank for emerging marketsteam of 30ActiveOther
LuciteSupercharging Insurance Brokers & Advisorsacquiredteam of 4AcquiredAI
SalvyMobile carrier for businesses in Brazilteam of 27ActiveAI
Event Horizon LabsAI research lab automating all of investingteam of 10hiringActiveAI
MonumintConversational AI purpose-built for financial servicesteam of 10hiringActiveAI
PiramidalFoundation Models for the Brainteam of 10hiringActiveAI
TrueClaimTransparent, AI-powered healthcare TPA.team of 10hiringActiveAI, Devtools
Zep AIThe unified context layer for enterprise datateam of 10hiringActiveAI, Devtools
InspectMind AIAI agent for construction drawings reviewteam of 62 programsActiveAI
DatacurveFrontier coding data for training and evaluating LLMsteam of 25ActiveAI
GetCruxAI Creative Strategistteam of 9hiringActiveAI, Data
ROEAI for risk and complianceteam of 9hiringActiveAI, Devtools
SpeckAI Notetaker that automates all your admin workacquiredteam of 3AcquiredAI
Verse TherapyConnecting All Ages with Speech Language Pathologistsacquiredteam of 3AcquiredAI
SuretyNowAI-enabled Surety Bond Brokerteam of 20ActiveAI
TomaAI Applied Researchteam of 20ActiveAI, Devtools
CloudCruiseThe developer platform for fast and reliable browser agentsteam of 8hiringActiveAI, Devtools
Ocular AIApplied AI Data Research Lab Encoding Human Expertise into Machines…team of 8hiringActiveAI, Data
ParadigmA reimagined workspace with AI at its coreteam of 8hiringActiveAI
Pivot RoboticsAI for Robot Arms in Factoriesteam of 8hiringActiveAI
SensoControl what AI says about youteam of 8hiringActiveAI
MidenCard issuer processor and banking stack for businesses in Sub-…team of 19ActiveDevtools
TriplyOperating system for travel businesses in Africa with embedded financeteam of 18ActiveOther
ArtosAuthoring documents for life sciences in minutes, not months.team of 7hiringActiveAI
ForgeAI native freight forwarder and customs brokerteam of 7hiringActiveAI
GovernGPTThe RFP Platform Asset Managers Adoptteam of 7hiringActiveAI
HazelAI-enabled procurement for governmentteam of 7hiringActiveAI
IndemniCargo Theft and Fraud Prevention Platformteam of 7hiringActiveOther
Navier AIAgent-Driven Engineeringteam of 7hiringActiveAI
OpencallPractice admin run by AIteam of 7hiringActiveAI
SoniaValidated mental health support in your pocket, anytime.team of 7hiringActiveAI
Tuesday LabsDelightful robotsteam of 7hiringActiveAI
YonduRobots to Automate Fulfillmentteam of 7hiringActiveAI
CommodityAIThe AI operating system for commodity operationsteam of 6hiringActiveAI
OpenmartLocal business data intelligence platformteam of 6hiringActiveAI
PowderAI Agents for precise document analysisteam of 6hiringActiveAI
YarnYarn is the video product for agentic GTM teams.team of 6hiringActiveAI
ArcaneAIacquiredteam of 2AcquiredAI
Browser BuddyA recommendation system for the Internetacquiredteam of 2AcquiredAI
ConsulThe Stablecoin Payouts Platformacquiredteam of 2AcquiredOther
FocalAI video creation tool for TV shows and moviesacquiredteam of 2AcquiredAI
LumetricThe AI Analyst For Deal Teamsacquiredteam of 2AcquiredAI
ResonanceSelf-improving content bank for marketingacquiredteam of 2AcquiredAI
DriverContext for Codebasesteam of 15ActiveAI, Devtools
ParallelAI agents for healthcare adminteam of 15ActiveAI
DraftaidGo from 3D models to CAD drawings using AIteam of 14ActiveAI, Devtools
RisottoRisotto auto-solves IT support requests using AIteam of 32 programsActiveAI
RyseThe secondary market for real estate leasesteam of 13ActiveAI
atopileWe make tools to design electronics circuit boards with codeteam of 5hiringActiveDevtools
BetterBasketSmart grocery pricing with AIteam of 5hiringActiveAI, Data
CarmaThe agentic workspace that runs construction operations for profitteam of 5hiringActiveAI
MeticulateMaking it easy for B2B sales teams to send stellar outboundteam of 5hiringActiveAI
ShibolethShiboleth automates lending compliance for financial institutions…team of 5hiringActiveAI
TerrakottaAI platform for phone-first sellersteam of 5hiringActiveAI
The Vibe CompanyAI-native agency that scales like software, run on our own AI agents.team of 5hiringActiveAI
Upsolve AIDeploy trustworthy data agent that know your businessteam of 5hiringActiveAI, Data, Devtools
VoicepanelEvals for productsteam of 5hiringActiveAI, Data

About W24

Every company, one tile each

By category

W24 by category

Where are they now

W24 by status

Top tags in W24

  • Developer Tools30
  • Generative AI21
  • AI Assistant19
  • Fintech16
  • Consumer16
  • Healthcare13
  • Automation12
  • Open Source11
  • Sales11
  • Productivity11