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The Y Combinator Mafia

10,686 people came through Y Combinator and went on to found or lead other companies.

Peter BalmforthBatch S21Founded V-Flow Medical +1 Fahim FerdousYC Summer 2021Founded AdQuick +1 Kenny SongS21Founded Citadel AI +1 William ClemYC Summer 2021Founded Upside Foods +1 Victor E. FimbresYC Summer 2021Founded Inside Sherpa +1 Andrew ZhouYC Summer 2021Founded Fleet +1 Pritam ThakurYC Summer 2021Founded Ivy +1 Matthew KaneYC Summer 2021Founded Pirouettemedical +1 Alex PerelmanYC Summer 2021Founded PeerStreet +1 Jonathan BakerS21 BatchFounded AlgoViral +1 Massimo ChieruzziYC Summer 2021Founded AdEspresso +1 Deepak GargSummer 21Founded Wayfair +1 Maximilian MarquartYC Summer 2021Founded CHOVIVA +1 Sujay MaheshwariS 21Founded Cloudanix +1 José Carlos AguilarSummer 2021Founded Buró de Ingresos +1 Mahyad GhassemiYC Summer 2025Founded Okibi +1 Ali AttarSummer 2021 (S21)Founded Lightberry +1 Saurav MitraSummer 2021 (S21)Founded Okibi +1 Len BoyetteS21Founded Edge +1 Skyler AspegrenS21Founded Apollo +1 Josh WrightS21Founded Apollo +1 Menno GravemakerYC Summer 2021Founded Momo Medical Group +1 Clément SalaünYC Summer 2021Founded Formance +1 Vrinda GuptaY Combinator Summer 2021 BatchFounded Sequin +1 Eunice WongYC Summer 2021Founded Talkstack +1 Sagar SetuYC Summer 2021Founded Kritsnam +1 Curtis FongerYC Summer 2021Founded Appetas +1 Jack BowenS21Founded Genei +1 Adrien WaldS21Founded Genei +1 Moritz StephanS21Founded Hone +1 Chioma OkotchaYC Summer 2021Founded Rivy +1 Marcus LimaHeimdal (S21) & Torus (S26)Founded Torus +1 Max MergenthalerYC Summer 2021Founded Nixtla +1 Michael MooreYC Spring 2026Founded Akkari +1 Anushree GoenkaYC Summer 2021Founded Sparky +1 Gus TrigosYC Summer 2021Founded Runtime +1 David MillsYC Summer 2021Founded Infinant Health +1 Spencer LevittS21Founded Coast +1 Austin PagerS21Founded Coast +1 Anisa MirzaYC Summer 2021Founded Litnerd +1 Sam SteyerYC Summer 2021Founded Station A +1 Kris BennattiYC Summer 2021Founded Bedrock Ai +1 Peter WeijmarshausenYC Summer 2021Founded Humane Genomics +1 Omar RadiYC Summer 2008Founded Pylon +1 Alex VilhenaYC Summer 2021Founded The Focal Point +1 Vahur HansenYC Summer 2021Founded Roleo +1 Akash BansalS21Founded Storylane +1 Yi Sung (Sung) YongYC Winter 2022Founded Atlas +1 Shawn LiamMaking something people want.Founded Atlas +1 Surendhar ReddyYC Summer 2021Founded Atlas +1 Alex ZhouS21 & W20 BatchesFounded Hirebolt +1 Sherwood CallawayP26Founded Sazabi +1 Ankit JainYC Summer 2021Founded Infinitus +1 Avinash SukhwaiYC S21 (Co-founder at Payflow)Founded Rocket Internet SE +1 Mahmoud GhulmanS21Founded Nash +1 Jeffrey WangYC Winter 2012Founded Exa +1 Mila DayanYC Summer 2021Founded Beau +1 Kyril KulikovS21 batchFounded Beau +1 Ahmed OmarS21Founded Odiggo +1 Max GusakovYC Summer 2021Founded Popcorn +1 Gabriel SaruhashiFounderFounded Reconnect +1 Khalid KeenanYC Winter 2021Founded Elevate (formerly Bloom) +1 John ZucchiYC Winter 2022Founded Agave +1 Samuel OkwuadaYC Winter 2022Founded Remedial Health +1 Jackson RobertsYC Winter 2022Founded WorldQL +1 Tooraj ArvajehYC Winter 2022Founded BlocPower +1 Mike CarterYC Winter 2022Founded Vooma +1 Paul KatsenW22Founded Gym Class VR +1 Aditya MehtaYC Winter 2022Founded Suggestr +1 Robert ThelenYC Winter 2022Founded Rownd +1 Dirkjan OchtmanYC Summer 2022Founded Instant +1 Tim QinW22Founded Roame +1 Jeong-Suh ChoiYC Winter 2022Founded 株式会社MEAL FORWARD +1 Akhil SuhagW22Founded Rehook.ai +1 Chang SheYC Winter 2022Founded Datapad +1 Samraaj BathYC Winter 2022Founded ion design +1 Amit BansalYC Winter 2022Founded 91 Squarefeet +1 Puneet BansalYC Winter 2022Founded 91 Squarefeet +1 Or PreissYC Winter 2022Founded Zengaming +1 Brendan WoodYC Winter 2022Founded Hostie +1 Dan AdamsonYC Winter 2022Founded AutoAlign AI +1 Tyler DiazYC Winter 2022Founded Mino Games +1 Oleksii SidorovStartup founder (W22 batch)Founded Slise +1 Ankit ParasherYC Winter 2022Founded LetsTransport +1 Juan Diego GalvezYC Winter 2022Founded PayCaddy +1 Henry MascotW22Founded Curacel +1 Amir TarighatYC Winter 2022Founded EquaMetrics +1 Impact AirelobhegbeParticipant of the Y Combinator Program with Lenco YC W2022Founded Glep +1 Godstime AsineYC Winter 2022Founded Glep +1 Praise OsagieYC Winter 2022Founded Glep +1 Gary LinYC Winter 2020Founded Airwork +1 Femi IrominiYC Winter 2022Founded Moni +1 Nicolas le JeuneYC Winter 2022Founded Courtyard +1 Aditya KetkarWinter'22Founded Broccoli Intelligence +1 Shourya LalaFello (W22)Founded Third Chair +1 Ruben CordobaYC Winter 2022Founded Hoytrabajas +1

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Frequently asked questions

What is the Y Combinator mafia?: The Y Combinator mafia is the network of 10,686 people who came through Y Combinator and went on to found or lead other companies, including V-Flow Medical, AdQuick, Citadel AI, Upside Foods, Inside Sherpa.
Who is in the Y Combinator mafia?: Notable members include Peter Balmforth (V-Flow Medical), Fahim Ferdous (AdQuick), Kenny Song (Citadel AI), William Clem (Upside Foods), Victor E. Fimbres (Inside Sherpa), Andrew Zhou (Fleet), Pritam Thakur (Ivy), Matthew Kane (Pirouettemedical), among 10,686 tracked members.
What companies did Y Combinator alumni found?: Companies founded by Y Combinator alumni include V-Flow Medical, AdQuick, Citadel AI, Upside Foods, Inside Sherpa, Fleet, Ivy, Pirouettemedical, PeerStreet, AlgoViral.