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The Y Combinator Mafia

10,678 people came through Y Combinator and went on to found or lead other companies.

Brian WeigandS25Founded CareSwift Jonathan ZeroYC Summer 2025Founded CareSwift Devraj GopalS25Founded Wedge Steven SegawaYC Summer 2025Founded Wedge Dhruv RoongtaS25Founded Slashy Tamish PulappadiFounderFounded cocreate Archish ArunYC Summer 2025Founded cocreate Youssef KallelYC Summer 2025Founded Panoptive Zarif AzherYC Summer 2025Founded Nexa Labs Kenneth ChanYC Summer 2025Founded Nexa Labs Noah Pacik-NelsonYC Summer 2025Founded BootLoop Chris MarkusYC Summer 2025Founded BootLoop Rohan JoshiYC Summer 2025Founded Stellon Labs Divam GuptaYC Summer 2025Founded Stellon Labs Sayan BhatiaYC Summer 2025Founded Kalinda Sohil BhatiaYC Summer 2025Founded Kalinda Carter PryS25Founded Riverbank Aria VikramYC Summer 2025Founded Conviction Tony YaminS25Founded Conviction Larissa TyagiYC Summer 2025Founded Theora Adrian BarbirYC Summer 2025Founded Doe Richard OuYC Summer 2025Founded Doe Nick AmoreYC Summer 2025Founded IronLedger.ai Samuel LiYC Summer 2025Founded IronLedger.ai Max RavenYC Summer 2025Founded OneStop Peyton ShieldsYC Summer 2025Founded OneStop Tim CherkasovS25Founded Trace Artur RomanovYC Summer 2025Founded Trace Kaivalya HariharanYC Summer 2025Founded Fulcrum Uzay GiritYC Summer 2025Founded Fulcrum Zlatko JončevYC Summer 2025Founded b12 Labs Andres BranAlumnusFounded b12 Labs Ari PolakofS25Founded Flai Juan AlzugarayS25Founded Flai Alen PolakofYC Summer 2025Founded Flai Ethan GibbsYC Summer 2025Founded Embedder Bob WeiS25Founded Embedder Aditya MahnaS25Founded Costream Ayush MahnaYC Summer 2025Founded Costream Braden WongYC Summer 2025Founded Epicenter Alexander SchiffYC Summer 2025Founded Channel3 George LawrenceYC Summer 2025Founded Channel3 Mohammad EshanYC Summer 2025Founded GhostEye Anson YuYC Summer 2025Founded Normal Hudhayfa NazoordeenYC Summer 2025Founded Normal Jiehua WuYC Summer 2025Founded Comena Almo SutedjoYC Summer 2025Founded Comena Alessia PaccagnellaS25Founded VibeFlow Elia SaquandYC Summer 2025Founded VibeFlow Arlan RakhmetzhanovYC Summer 2025Founded Nozomio Rohit SiroshYC Summer 2025Founded Mimos Adith ReddiYC Summer 2025Founded Physical Turing Kenny ZhangYC Summer 2025Founded Physical Turing John HuddlestonYC Summer 2025Founded Albacore Inc.Herman Båverud OlssonS25Founded Solva Sorena AminiYC Summer 2025Founded Solva James WallYC Summer 2025Founded Phases Anton ZaliznyiAlumniFounded Phases Jonathan van WerschYC Summer 2025Founded Phases Jason CorneliusYC Summer 2025Founded Perseus Defense Steve MessingerYC Summer 2025Founded Perseus Defense Aman AgarwalYC Summer 2025Founded Novaflow Amulya BalakrishnanYC Summer 2025Founded Novaflow Pietro ZulloYC Summer 2025Founded Manufact Luigi PederzaniSummer 2025 BatchFounded Manufact John JeongS25Founded Char Deokhaeng LeeYC Summer 2025Founded Char Yujong LeeS25Founded Char Jai RelanYC Summer 2025Founded Relling Anya SinghYC Summer 2025Founded Relling Sean ConleyS25Founded Motives Sam StollYC Summer 2025Founded Motives Vishnu SampathkumarW26Founded Autumn Shiv KampaniYC Winter 2026Founded Autumn Linus BoehmYC Summer 2025Founded Finto Fern MorrisonYC Summer 2025Founded Iron Grid Gabriele PozzatoYC Summer 2025Founded Iron Grid Neha SureshS25Founded ProcIndex Akash ThakurYC Summer 2025Founded ProcIndex Yuvan SundraniYC Summer 2025Founded Autosana Jason SteinbergYC Summer 2025Founded Autosana Ritam RanaYC Summer 2025Founded Knowlify Jonathan MaynardYC Summer 2025Founded Knowlify Arjun TalatiYC Summer 2025Founded Knowlify Ritvik VaradaYC Summer 2025Founded Knowlify Ishaan SehgalS25Founded Omnara Kartik SarangmathYC Summer 2025Founded Omnara Aoden TeoP26Founded Miso Labs Cassidy DalvaYC Spring 2026Founded Miso Labs Shahryar AbbasiS 25Founded Risely AI Sadia SaifuddinYC Summer 2025Founded Risely AI Niek HogenboomS25Founded Minimal AI Titus ExYC Summer 2025Founded Minimal AI Riya JagetiaYC Summer 2025Founded Socratix AI Satya Vasanth TumatiS25Founded Socratix AI Sabrine ObbadYC Summer 2025Founded Alara

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Frequently asked questions

What is the Y Combinator mafia?: The Y Combinator mafia is the network of 10,678 people who came through Y Combinator and went on to found or lead other companies, including CareSwift, Wedge, Slashy, cocreate, Panoptive.
Who is in the Y Combinator mafia?: Notable members include Brian Weigand (CareSwift), Jonathan Zero (CareSwift), Devraj Gopal (Wedge), Steven Segawa (Wedge), Dhruv Roongta (Slashy), Tamish Pulappadi (cocreate), Archish Arun (cocreate), Youssef Kallel (Panoptive), among 10,678 tracked members.
What companies did Y Combinator alumni found?: Companies founded by Y Combinator alumni include CareSwift, Wedge, Slashy, cocreate, Panoptive, Nexa Labs, BootLoop, Stellon Labs, Kalinda, Riverbank.