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The Y Combinator Mafia

10,702 people came through Y Combinator and went on to found or lead other companies.

Euro WangS23Founded Guac Jack SolomonYC Summer 2023Founded Guac Ali AkhtarYC Summer 2023Founded Letter AI Armen ForgetYC Summer 2023Founded Letter AI Ty DunnYC Summer 2023Founded Continue Nate SestiYC Summer 2023Founded Continue Roger de BelsunceYC Summer 2023Founded sizeless Cornelius von EinemYC Summer 2023Founded sizeless Matt WardYC Summer 2023Founded Apoxy Dmitry IlyevskyYC Summer 2023Founded Apoxy Ashutosh PurohitYC Winter 2024Founded Yenmo Aryan AgarwalBatch W24Founded Yenmo Sona SulakianS23Founded Pincites Mariam SulakianS23Founded Pincites Emily DamatoYC Summer 2023Founded MantleBio Madeline SchadeYC Summer 2023Founded MantleBio Roanak BaviskarYC Summer 2023Founded Trainy Andrew AikawaYC Summer 2023Founded Trainy Alex LanzoniS23Founded Studdy Kalyani RamadurgamS23Founded Kobalt Labs Ashi AgrawalYC Summer 2023Founded Kobalt Labs Oliver KehYC Summer 2023Founded Gleam Mrinal SinghS23Founded Bolto Jake JohnsonYC Summer 2023Founded Bolto Debanjum Singh SolankyYC Summer 2023Founded Khoj Saba ImranYC Summer 2023Founded Khoj Dani PenevYC Summer 2023Founded Slicker Ivan ValkovYC Summer 2023Founded Slicker Sarah NajmarkFounder part of YC S23 BatchFounded Osium AI Jinseo ParkYC Summer 2023Founded Flint Jan-Henrik LambrechtsYC Summer 2023Founded Converge Jerome BillietYC Summer 2023Founded Converge Thomas HolvoetYC Summer 2023Founded Converge Sean AdlerYC Summer 2023Founded Inlet Hugo (Kanghong) ZhanYC Summer 2023Founded Rankai Eshaan MoorjaniYC Summer 2023Founded Vango AI Rajen DeyS23Founded Vango AI Maggie ZhangYC Summer 2023Founded Read Bean Savannah LiuYC Summer 2023Founded Read Bean Govind GnanakumarYC Summer 2023Founded Automorphic Maaher GandhiYC Summer 2023Founded Automorphic Mahesh NatamaiS23Founded Automorphic Effy ZhangYC Summer 2023Founded Baserun David GraunkeYC Summer 2023Founded SafetyKit Steven GuichardYC Summer 2023Founded SafetyKit Alexander LeonardiYC Summer 2023Founded VectorShift Albert MaoS23Founded VectorShift Katelyn StrobelYC Summer 2023Founded Envelope Josh StrobelS23Founded Envelope Max WuYC Summer 2023Founded DisputeNinja Bowen XueYC Summer 2023Founded DisputeNinja Anish AgrawalYC Summer 2023Founded Chatter Mayank AgrawalYC Summer 2023Founded Proof of Human Matt HardyS23Founded Proof of Human Nick DamianoS23Founded Andromeda Surgical Ann WuS23 BatchFounded Silimate Akash LevyS23 BatchFounded Silimate William ZengYC Summer 2023Founded Sweep Randy SongS23 BatchFounded sudocode Alex NgaiYC Summer 2023Founded sudocode Rob HaberYC Summer 2023Founded Sendblue Alex LuisSummer Batch 2023Founded Sendblue Olivier MoindrotYC Summer 2023Founded Fragment Guillaume GenthialYC Summer 2023Founded Fragment Tony YangYC Summer 2023Founded SyntheticFi Dhiren BhatiaYC Summer 2023Founded Inventive AI Vishakh HegdeYC Summer 2023Founded Inventive AI Gaurav NemadeYC Summer 2023Founded Inventive AI Lennard SchmidtYC S23Founded Langdock Jonas BeisswengerS23 BatchFounded Langdock Tobias KemkesYC S23Founded Langdock Darren FikeYC Summer 2023Founded Santé Jake CorkinYC Summer 2023Founded Movley Rafael PetryS23Founded Movley Reetam GanguliYC Summer 2023Founded Elythea Debesh MandalS23Founded Nanograb Christopher LauYC Summer 2023Founded Nanograb Shanil PanaraYC Summer 2023Founded Nanograb Trey BenedictS23Founded Pure Pablo PalafoxYC Summer 2023Founded HappyRobot Luis PaarupYC Summer 2023Founded HappyRobot Javier PalafoxYC Summer 2023Founded HappyRobot Luciana ReznikYC Summer 2023Founded Cedalio Nico MagniAlumni Batch S23Founded Cedalio Guido Marucci BlasYC Summer 2023Founded Cedalio Kevin ChiuYC Summer 2023Founded Certainly Health Carlos FelicianoYC S23 AlumFounded Terracotta AI Casey WilcoxYC S23 AlumFounded Terracotta AI Adi AgasheFounder @ Fiber AI (YC S23)Founded Fiber AI Neel MehtaYC Summer 2023Founded Fiber AI Samuel SanYC Summer 2023Founded RecipeUI Philip IsikS23Founded Tiptap Sven AdlungYC Summer 2023Founded Tiptap Patrick BaberYC Summer 2023Founded Tiptap Nick HircheYC Summer 2023Founded Tiptap Timo IsikYC Summer 2023Founded Tiptap

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Frequently asked questions

What is the Y Combinator mafia?: The Y Combinator mafia is the network of 10,702 people who came through Y Combinator and went on to found or lead other companies, including Guac, Letter AI, Continue, sizeless, Apoxy.
Who is in the Y Combinator mafia?: Notable members include Euro Wang (Guac), Jack Solomon (Guac), Ali Akhtar (Letter AI), Armen Forget (Letter AI), Ty Dunn (Continue), Nate Sesti (Continue), Roger de Belsunce (sizeless), Cornelius von Einem (sizeless), among 10,702 tracked members.
What companies did Y Combinator alumni found?: Companies founded by Y Combinator alumni include Guac, Letter AI, Continue, sizeless, Apoxy, Yenmo, Pincites, MantleBio, Trainy, Studdy.