Top accelerator startups

14,448 startups · 29 programs

YC Winter 2023

274 companies · 69% AI · 25 data · 89 devtools · started Jan 2023

The W23 companies

AILiteLLMCall every LLM API like it's OpenAI [100+ LLMs]YC W23San FranciscoStartup →AIAcquiredLangfuseOpen source LLM engineering platformYC W23BerlinStartup →AIAlaanAi-native finance platform for the Middle EastYC W23DubaiStartup →OtherTennrFast, Transparent Patient ExperiencesYC W23New York CityStartup →AIAcquiredStackAIThe Enterprise AI Transformation PlatformYC W23San FranciscoStartup →OtherFinni HealthEmpowering Autism Care Providers to Go IndependentYC W23Startup →AINumeralThe AI-native sales tax solution.YC W23San FranciscoStartup →AIPylonThe Agentic Support Platform purpose-built for B2B.YC W23San FranciscoStartup →AIAvocaAI-powered Sales Agent for Service-Based IndustriesYC W23New York CityStartup →AIAcquiredPlayAIOur mission is to make Voice AI accessible and useful to all.YC W23San FranciscoStartup →AIHadriusAutomating Securities ComplianceYC W23New York CityStartup →OtherFoursInfrastructure for indirect revenue channelsYC W23San FranciscoStartup →AIInfisicalSecurity infrastructure for developers and agentsYC W23San FranciscoStartup →AIAcquiredFernInstantly offer SDKs and API DocsYC W23New York CityStartup →AISynclySocial listening for the video eraYC W23San FranciscoStartup →AILatentMedical language models to automate healthcare operationsYC W23San FranciscoStartup →AIPirrosAI Platform for Architects and EngineersYC W23Los AngelesStartup →AIKivo HealthAI-powered care for seniors with chronic diseaseYC W23San FranciscoStartup →AIMiddlewareAI-based full stack observability platformYC W23San FranciscoStartup →AISalientAI Servicing for Auto LendersYC W23San FranciscoStartup →AIVoomaAutomation platform for logisticsYC W23San FranciscoStartup →AIYuma AIThe AI Support Agent for EcommerceYC W23BostonStartup →OtherProglixB2B Marketplace for Steel Raw MaterialsYC W23JakartaStartup →AIAcquiredVersoriAgentic integrations & automations for enterpriseYC W23ManchesterStartup →AIMetalMetal is an AI-driven operating system for fundraisingYC W23LahoreStartup →AIWarpAI-native Employee Management Platform for High-Growth CompaniesYC W23New York CityStartup →AIRollstackAutomate data-driven slide decks and documents with AIYC W23New York CityStartup →AITruewindAI-Powered AccountingYC W23San FranciscoStartup →AIEscapeOffensive security for the teams that are 100x outnumberedYC W23ParisStartup →AIFloworksHire the best AI Sales employees | AI SDR | AI RevOps | AI EAYC W23BengaluruStartup →AISamedayThe leading AI workforce for the trades.YC W23LehiStartup →AIOnshoreAI for corporate taxYC W23New York CityStartup →OtherRUUFManaged marketplace for solar in LatamYC W23SantiagoStartup →Developer toolsResendEmail for developersYC W23RemoteStartup →AI222the AI social facilitator for offline human to human interactionsYC W23New York CityStartup →OtherVitalizeTransforming how health systems optimize laborYC W23San FranciscoStartup →AIGovEagleAI for Government ContractorsYC W23New York CityStartup →AIOmnistrateBuild your control plane to deploy your product in your customer VPC…YC W23San FranciscoStartup →AIAcquiredTraceloopKnow what your LLM is doing, and why it’s failingYC W23Tel Aviv-YafoStartup →AIloopfourWorkflow automation, without AI hallucinations.YC W23San FranciscoStartup →AISuperKalamAI-Powered Super Mentor for Test PrepYC W23BengaluruStartup →AIVectorAdvertising for the new internetYC W23BostonStartup →Developer toolsAcquiredhighlight.ioThe open source, fullstack monitoring platform: stop guessing why…YC W23SeattleStartup →AIAcquiredBenchmarkDecision infrastructure for investment firmsYC W23New York CityStartup →AIAcquiredOpenMeterUsage Metering, AI & API MonetizationYC W23Startup →AIInkeepBuild AI Agent teammates and automations in code or no-codeYC W23San FranciscoStartup →DataPoloTabRestaurant software that actually worksYC W23Mexico CityStartup →AIMetalThe AI context platform for private capital. Everything your firm…YC W23New York CityStartup →AIAcquiredBluebirdsAutomate outbound with signalsYC W23San FranciscoStartup →AIAcquiredEzDubsReal-time speech translationYC W23San FranciscoStartup →AIAcquiredFintoolFinancial copilot for institutional investorsYC W23San FranciscoStartup →OtherLittioDollar banking for people in Latin AmericaYC W23BogotáStartup →OtherBujetiThe Finance Control Centre for African BusinessesYC W23ParisStartup →AIConcourseThe AI Agent platform for financeYC W23New York CityStartup →AIConduitThe operating system for shipping and receiving.YC W23San FranciscoStartup →AIReflexBuild the software you wish existed.YC W23San FranciscoStartup →AICredal.aiThe Control Plane for Enterprise AgentsYC W23New York CityStartup →Developer toolsAcquiredEdgeBitAutofix your software dependenciesYC W23San FranciscoStartup →AIAcquiredHeliconeLLM Observability for DevelopersYC W23San FranciscoStartup →Developer toolsAcquiredKeepThe open-source AIOps platformYC W23Tel Aviv-YafoStartup →AIAcquiredLumeSpeed up customer implementation with AIYC W23Startup →AIAcquiredMulliganAI automation for insurance brokeragesYC W23San FranciscoStartup →AIAcquiredNo CapAI startup investor, No CapYC W23San FranciscoStartup →AIAcquiredOfOneAI-powered order taker for restaurant drive-thrusYC W23San FranciscoStartup →AIAcquiredRally TaxAI-native tax platform to save $1T+ for AmericansYC W23San FranciscoStartup →AIHonaPersonal Injury Legal Work - AutomatedYC W23OremStartup →AICosineFully Agentic SWEYC W23LondonStartup →AIinBuildWorkflow Automation for Construction FinanceYC W23WilmingtonStartup →AIVarianceAI Agents for Fraud Review and InvestigationsYC W23San FranciscoStartup →OtherInfiniaMove money programmatically - built for developersYC W23MontevideoStartup →OtherWazaB2B payments platform for emerging markets.YC W23LagosStartup →AI1stCollabPerformance-Optimized Influencer Marketing at ScaleYC W23San FranciscoStartup →AIBoundaryThe programming language for AIYC W23SeattleStartup →AIDiffuse BioGenerative AI for protein designYC W23San FranciscoStartup →OtherHammrRippling for the Construction IndustryYC W23San FranciscoStartup →AIMagic PatternsThe AI-native workspace to design your product.YC W23San FranciscoStartup →AIRubbrbandA new kind of creative company.YC W23San FranciscoStartup →AIAcquiredBrewitConversational data analytics for every teamYC W23San FranciscoStartup →AIAcquiredOpenIntOpen Source Embedded Product IntegrationsYC W23RemoteStartup →AIAcquiredOuterbaseThe interface for your databaseYC W23PittsburghStartup →Developer toolsAcquiredTrigoRent verification API for landlords and lendersYC W23New York CityStartup →AICloudchiprThe #1 Actionable FinOps PlatformYC W23BerlinStartup →AICluesoCreate beautiful videos & docs for any product or process in minutesYC W23BengaluruStartup →AIExtendProduction-ready document processingYC W23New York CityStartup →Developer toolsVellumA developer tools startup in Y Combinator's Winter 2023 batch, based in New York City.YC W23New York CityStartup →AIDepotSoftware delivery built for machine scale.YC W23RemoteStartup →Developer toolsIcePanelDesign and explain complex software architecture.YC W23North VancouverStartup →AIAcquiredBooth AIGenerative AI Photographer for E-CommerceYC W23San FranciscoStartup →AIAcquiredCardinalYour AI product backlogYC W23AustinStartup →OtherAcquiredCobblestoneDelinquency reduction and automation software for institutional…YC W23New York CityStartup →AIAcquiredFairway HealthAI Co-Pilot for Health Insurers to Authorize Treatment FasterYC W23New York CityStartup →AIAcquiredVocodeOpen source Voice AIYC W23San FranciscoStartup →AIFlowerTrain AI on distributed dataYC W23RemoteStartup →AIBerryAI Renewal Agent for Your Long Tail.YC W23San FranciscoStartup →AIFlexDeskAI Agents for corporate real estate teamsYC W23New York CityStartup →AIShortLoopPhone AI that Captures Every Dealership Revenue OpportunityYC W23BengaluruStartup →AISpeedy LabsMaximize profits with AI-powered rebate management.YC W23TorontoStartup →OtherVendahVendah is building a Faire-style marketplace for LATAM’s +50M…YC W23São PauloStartup →AIChimaBuilding infrastructure tools to help large companies customize their…YC W23San FranciscoStartup →AICladBilling and project management for utility constructionYC W23New York CityStartup →
Company
LiteLLMCall every LLM API like it's OpenAI [100+ LLMs]59.6k starsteam of 20ActiveAI, Devtools
LangfuseOpen source LLM engineering platformteam of 26acquired by ClickHouseAcquiredAI, Data, Devtools
AlaanAi-native finance platform for the Middle Eastteam of 250hiringActiveAI
TennrFast, Transparent Patient Experiencesteam of 205hiringActiveOther
StackAIThe Enterprise AI Transformation Platformteam of 62acquiredAcquiredAI
Finni HealthEmpowering Autism Care Providers to Go Independentteam of 402 programsActiveOther
NumeralThe AI-native sales tax solution.team of 130hiringActiveAI
PylonThe Agentic Support Platform purpose-built for B2B.team of 120hiringActiveAI
AvocaAI-powered Sales Agent for Service-Based Industriesteam of 85hiringActiveAI
PlayAIOur mission is to make Voice AI accessible and useful to all.team of 35acquiredAcquiredAI, Devtools
HadriusAutomating Securities Complianceteam of 80hiringActiveAI
FoursInfrastructure for indirect revenue channelsteam of 76hiringActiveOther
InfisicalSecurity infrastructure for developers and agentsteam of 70hiringActiveAI, Devtools
FernInstantly offer SDKs and API Docsteam of 30acquiredAcquiredAI, Devtools
SynclySocial listening for the video erateam of 152 programsActiveAI
LatentMedical language models to automate healthcare operationsteam of 50hiringActiveAI
PirrosAI Platform for Architects and Engineersteam of 44hiringActiveAI
Kivo HealthAI-powered care for seniors with chronic diseaseteam of 40hiringActiveAI
MiddlewareAI-based full stack observability platformteam of 40hiringActiveAI, Devtools
SalientAI Servicing for Auto Lendersteam of 40hiringActiveAI
VoomaAutomation platform for logisticsteam of 40hiringActiveAI
Yuma AIThe AI Support Agent for Ecommerceteam of 262 programsActiveAI
ProglixB2B Marketplace for Steel Raw Materialsteam of 252 programsActiveOther
VersoriAgentic integrations & automations for enterpriseteam of 16acquiredAcquiredAI, Data, Devtools
MetalMetal is an AI-driven operating system for fundraisingteam of 212 programsActiveAI
WarpAI-native Employee Management Platform for High-Growth Companiesteam of 80ActiveAI
RollstackAutomate data-driven slide decks and documents with AIteam of 30hiringActiveAI, Data
TruewindAI-Powered Accountingteam of 30hiringActiveAI
EscapeOffensive security for the teams that are 100x outnumberedteam of 29hiringActiveAI, Devtools
FloworksHire the best AI Sales employees | AI SDR | AI RevOps | AI EAteam of 202 programsActiveAI
SamedayThe leading AI workforce for the trades.team of 72 programsActiveAI
OnshoreAI for corporate taxteam of 60ActiveAI
RUUFManaged marketplace for solar in Latamteam of 60ActiveOther
ResendEmail for developersteam of 45on 1 Glyph sourceActiveDevtools
222the AI social facilitator for offline human to human interactionsteam of 28hiringActiveAI
VitalizeTransforming how health systems optimize laborteam of 28hiringActiveOther
GovEagleAI for Government Contractorsteam of 25hiringActiveAI
OmnistrateBuild your control plane to deploy your product in your customer VPC…team of 25hiringActiveAI, Devtools
TraceloopKnow what your LLM is doing, and why it’s failingteam of 9acquiredAcquiredAI, Devtools
loopfourWorkflow automation, without AI hallucinations.team of 20hiringActiveAI
SuperKalamAI-Powered Super Mentor for Test Prepteam of 20hiringActiveAI
VectorAdvertising for the new internetteam of 20hiringActiveAI
highlight.ioThe open source, fullstack monitoring platform: stop guessing why…team of 8acquiredAcquiredDevtools
BenchmarkDecision infrastructure for investment firmsteam of 7acquiredAcquiredAI
OpenMeterUsage Metering, AI & API Monetizationteam of 7acquiredAcquiredAI, Devtools
InkeepBuild AI Agent teammates and automations in code or no-codeteam of 18hiringActiveAI, Devtools
PoloTabRestaurant software that actually worksteam of 18hiringActiveData
MetalThe AI context platform for private capital. Everything your firm…team of 17hiringActiveAI
BluebirdsAutomate outbound with signalsteam of 6acquiredAcquiredAI
EzDubsReal-time speech translationteam of 6acquiredAcquiredAI, Devtools
FintoolFinancial copilot for institutional investorsteam of 6acquiredAcquiredAI
LittioDollar banking for people in Latin Americateam of 37ActiveOther
BujetiThe Finance Control Centre for African Businessesteam of 35ActiveOther
ConcourseThe AI Agent platform for financeteam of 15hiringActiveAI
ConduitThe operating system for shipping and receiving.team of 15hiringActiveAI
ReflexBuild the software you wish existed.team of 15hiringActiveAI, Devtools
Credal.aiThe Control Plane for Enterprise Agentsteam of 14hiringActiveAI
EdgeBitAutofix your software dependenciesteam of 5acquiredAcquiredDevtools
HeliconeLLM Observability for Developersteam of 5acquiredAcquiredAI, Data, Devtools
KeepThe open-source AIOps platformteam of 5acquiredAcquiredDevtools
LumeSpeed up customer implementation with AIteam of 5acquiredAcquiredAI, Data, Devtools
MulliganAI automation for insurance brokeragesteam of 5acquiredAcquiredAI
No CapAI startup investor, No Capteam of 5acquiredAcquiredAI
OfOneAI-powered order taker for restaurant drive-thrusteam of 5acquiredAcquiredAI
Rally TaxAI-native tax platform to save $1T+ for Americansteam of 5acquiredAcquiredAI
HonaPersonal Injury Legal Work - Automatedteam of 32ActiveAI
CosineFully Agentic SWEteam of 12hiringActiveAI, Devtools
inBuildWorkflow Automation for Construction Financeteam of 12hiringActiveAI
VarianceAI Agents for Fraud Review and Investigationsteam of 12hiringActiveAI
InfiniaMove money programmatically - built for developersteam of 28ActiveOther
WazaB2B payments platform for emerging markets.team of 28ActiveOther
1stCollabPerformance-Optimized Influencer Marketing at Scaleteam of 11hiringActiveAI
BoundaryThe programming language for AIteam of 10hiringActiveAI, Devtools
Diffuse BioGenerative AI for protein designteam of 10hiringActiveAI
HammrRippling for the Construction Industryteam of 10hiringActiveOther
Magic PatternsThe AI-native workspace to design your product.team of 10hiringActiveAI
RubbrbandA new kind of creative company.team of 10hiringActiveAI
BrewitConversational data analytics for every teamacquiredteam of 4AcquiredAI, Data
OpenIntOpen Source Embedded Product Integrationsacquiredteam of 4AcquiredAI, Data, Devtools
OuterbaseThe interface for your databaseacquiredteam of 4AcquiredAI, Data, Devtools
TrigoRent verification API for landlords and lendersacquiredteam of 4AcquiredDevtools
CloudchiprThe #1 Actionable FinOps Platformteam of 25ActiveAI, Devtools
CluesoCreate beautiful videos & docs for any product or process in minutesteam of 25ActiveAI, Devtools
ExtendProduction-ready document processingteam of 25ActiveAI, Devtools
VellumA developer tools startup in Y Combinator's Winter 2023 batch, based in New York City.team of 23ActiveDevtools
DepotSoftware delivery built for machine scale.team of 22ActiveAI, Devtools
IcePanelDesign and explain complex software architecture.team of 9hiringActiveDevtools
Booth AIGenerative AI Photographer for E-Commerceacquiredteam of 3AcquiredAI
CardinalYour AI product backlogacquiredteam of 3AcquiredAI, Data, Devtools
CobblestoneDelinquency reduction and automation software for institutional…acquiredteam of 3AcquiredOther
Fairway HealthAI Co-Pilot for Health Insurers to Authorize Treatment Fasteracquiredteam of 3AcquiredAI
VocodeOpen source Voice AIacquiredteam of 3AcquiredAI, Devtools
FlowerTrain AI on distributed datateam of 20ActiveAI, Devtools
BerryAI Renewal Agent for Your Long Tail.team of 8hiringActiveAI
FlexDeskAI Agents for corporate real estate teamsteam of 8hiringActiveAI
ShortLoopPhone AI that Captures Every Dealership Revenue Opportunityteam of 8hiringActiveAI, Devtools
Speedy LabsMaximize profits with AI-powered rebate management.team of 8hiringActiveAI
VendahVendah is building a Faire-style marketplace for LATAM’s +50M…team of 8hiringActiveOther
ChimaBuilding infrastructure tools to help large companies customize their…team of 7hiringActiveAI, Devtools
CladBilling and project management for utility constructionteam of 7hiringActiveAI

About W23

Every company, one tile each

By category

W23 by category

Where are they now

W23 by status

Top tags in W23

  • Developer Tools49
  • Generative AI46
  • Fintech35
  • Open Source21
  • Analytics15
  • Enterprise15
  • AI Assistant15
  • API14
  • Payments13
  • Healthcare13