Top accelerator startups

14,448 startups · 29 programs

YC Summer 2009

26 companies · 8% AI · 2 data · 4 devtools · started Jun 2009

The S09 companies

OtherStripeEconomic infrastructure for the internet.YC S09San FranciscoStartup →OtherAcquiredWePayPayments for platform businesses.YC S09San FranciscoStartup →DataMixpanelMixpanel is event analytics for builders that need answers.YC S09San FranciscoStartup →OtherAcquiredLockitronLockitron makes electronic locks you can control locally from your…YC S09San FranciscoStartup →OtherAcquiredBumpBump, Flock, Photoroll (unreleased) => Google PhotosYC S09San FranciscoStartup →Developer toolsAcquiredRethinkDBThe open source database for the realtime web.YC S09San FranciscoStartup →OtherRentHopApartment rental marketplaceYC S09New York CityStartup →OtherAcquiredDailyBoothA startup in Y Combinator's Summer 2009 batch, based in San Francisco.YC S09San FranciscoStartup →OtherAcquiredFlightcasterA startup in Y Combinator's Summer 2009 batch, based in San Francisco.YC S09San FranciscoStartup →OtherAcquiredGraffitiGeoWe let you know where to go and what to get once you get there.…YC S09San FranciscoStartup →AIOlarkOlark gives you an AI agent that works your marketing funnel 24/7YC S09San FranciscoStartup →OtherListiaMobile marketplace for trading used goods.YC S09San FranciscoStartup →AIDirected EdgeProduct recommendations.YC S09San FranciscoStartup →OtherLingtLingt provided a web-based platform for learning languages leveraging…YC S09San FranciscoStartup →OtherInactiveCarWooThe best way to buy a new car.YC S09San FranciscoStartup →OtherInactiveFanchatterFanChatter aggregates, amplifies and empowers fan content on every…YC S09MinneapolisStartup →OtherInactiveHighlightCamHighlightCam edits video, automatically!YC S09San FranciscoStartup →OtherInactiveJobspiceA startup in Y Combinator's Summer 2009 batch, based in San Francisco.YC S09San FranciscoStartup →OtherInactiveTuxeboOnline marketplace for equipment rentalYC S09LondonStartup →OtherInactiveInstantqA startup in Y Combinator's Summer 2009 batch, based in San Francisco.YC S09San FranciscoStartup →Developer toolsInactiveNudgePadOnline IDE. We joined Microsoft in 2014.YC S09San FranciscoStartup →OtherInactivePlurchaseA startup in Y Combinator's Summer 2009 batch, based in San Francisco.YC S09San FranciscoStartup →DataInactiveWakemateA data startup in Y Combinator's Summer 2009 batch, based in San Francisco.YC S09San FranciscoStartup →OtherInactiveAdThrowA startup in Y Combinator's Summer 2009 batch.YC S09Startup →OtherInactiveRoboHRA startup in Y Combinator's Summer 2009 batch, based in San Francisco.YC S09San FranciscoStartup →Developer toolsInactiveStackqA developer tools startup in Y Combinator's Summer 2009 batch.YC S09Startup →
Company
StripeEconomic infrastructure for the internet.team of 7k163 open rolesActiveOther
WePayPayments for platform businesses.team of 400YC top companyAcquiredOther
MixpanelMixpanel is event analytics for builders that need answers.team of 410YC top companyActiveData, Devtools
LockitronLockitron makes electronic locks you can control locally from your…team of 11acquiredAcquiredOther
BumpBump, Flock, Photoroll (unreleased) => Google Photosteam of 30acquiredAcquiredOther
RethinkDBThe open source database for the realtime web.team of 11acquiredAcquiredDevtools
RentHopApartment rental marketplaceteam of 9hiringActiveOther
DailyBoothA startup in Y Combinator's Summer 2009 batch, based in San Francisco.acquiredteam of 2AcquiredOther
FlightcasterA startup in Y Combinator's Summer 2009 batch, based in San Francisco.acquiredteam of 2AcquiredOther
GraffitiGeoWe let you know where to go and what to get once you get there.…acquiredteam of 2AcquiredOther
OlarkOlark gives you an AI agent that works your marketing funnel 24/7team of 15ActiveAI
ListiaMobile marketplace for trading used goods.team of 6ActiveOther
Directed EdgeProduct recommendations.team of 2ActiveAI
LingtLingt provided a web-based platform for learning languages leveraging…team of 2ActiveOther
CarWooThe best way to buy a new car.team of 11InactiveOther
FanchatterFanChatter aggregates, amplifies and empowers fan content on every…team of 11InactiveOther
HighlightCamHighlightCam edits video, automatically!team of 11InactiveOther
JobspiceA startup in Y Combinator's Summer 2009 batch, based in San Francisco.team of 11InactiveOther
TuxeboOnline marketplace for equipment rentalteam of 3InactiveOther
InstantqA startup in Y Combinator's Summer 2009 batch, based in San Francisco.team of 2InactiveOther
NudgePadOnline IDE. We joined Microsoft in 2014.team of 2InactiveDevtools
PlurchaseA startup in Y Combinator's Summer 2009 batch, based in San Francisco.team of 2InactiveOther
WakemateA data startup in Y Combinator's Summer 2009 batch, based in San Francisco.team of 2InactiveData
AdThrowA startup in Y Combinator's Summer 2009 batch.InactiveOther
RoboHRA startup in Y Combinator's Summer 2009 batch, based in San Francisco.InactiveOther
StackqA developer tools startup in Y Combinator's Summer 2009 batch.InactiveDevtools

About S09

Every company, one tile each

By category

S09 by category

Where are they now

S09 by status

Top tags in S09

  • Marketplace4
  • Fintech2
  • Recommendation System2
  • Banking as a Service1
  • Analytics1
  • Data Visualization1
  • Cloud Computing1
  • Databases1
  • Hardware1
  • IoT1