Fundraising Fox
The Y Combinator Mafia
10,657 people came through Y Combinator and went on to found or lead other companies.
Arav MathurYC Fall 2026Founded GrayPassAditya RanjanYC Fall 2026Founded GrayPassAdam ZinebiYC Fall 2026Founded CyclonThomas KieferYC Fall 2026Founded CyclonMaaz SheikhYC Fall 2026Founded AgeospatialAlexander ClappW2020Founded MoonsVedant VyasS25Founded OpennoteChris ChaeS22Founded RelateEmil HewageYC Winter 2017Founded BIOS HealthGreg KamradtYC Winter 2026Founded ARC Prize FoundationMichelle YinYC Winter 2022Founded HousewarmingYael IsraeliYC Summer 2020Founded MozperJuan Pablo MontoyaYC S22Founded Solum HealthBobby PinckneyYC Winter 2022Founded HousewarmingGabriel RoiznerS20Founded MozperJuan Andrade GressYC Summer 2021Founded PerfektoVikaas VarmaYC Winter 2023Founded Dream3DOla DegerforsYC Summer 2017Founded Fat LlamaVarun AVYC Winter 2019Founded InitoPedro SorsYC Summer 2021Founded lapzoMaxine AndersonYC Summer 2020Founded AristTom WhittleYC Winter 2025Founded Artificial SocietiesMarc FriendYC Summer 2011Founded SiftSamuel LoYC Summer 2022Founded PolyRyan FerrierYC Summer 2013Founded LobAaron HarrisPartnerFounded TutorspreeRichard DinYC Summer 2011Founded CaviarGreg KiddYC Summer 2014Founded AptoScott MontgomerieYC Summer 2015Founded Scope ARDavid NedohinYC Summer 2015Founded Scope ARKaran SoodYC Winter 2015Founded VestRoberto BragaYC Summer 2017Founded bxblueFabricio BuzetoAlumniFounded bxblueTuto AssadS19Founded VitauEmmanuel GboladeYC Winter 2020Founded TermiiJose de la Luz Lopez SWinter 2020Founded delt.aiRoss RobinsonYC Summer 2014Founded TinkerMatteo FranceschettiS15Founded Eight SleepSaurav GandhiW2021 batchFounded Bueno FinanceBenjamín LabraYC Winter 2021Founded HoumPulkit AgarwalYC Summer 2021Founded Strive MathVu TranYC Summer 2012Founded FramebaseJoel KaracozoffYC Winter 2019Founded BaltoAlexander MeekYC Winter 2021Founded Moxion Power Co.Omar KassimYCS21Founded NomodMike BifulcoS23 BatchFounded CraftworkVijay LavhaleYC Winter 2022Founded VantedgeAIAnna Joo FeeYC Winter 2022Founded goodfinAllan JiangYC Winter 2022Founded Sota2Jianyu (Leo) LiYC Winter 2022Founded Sota2Leo PazYC Winter 2025Founded OutlitChris NicholsonGrowthFounded PathmindDarby WongYC Summer 2011Founded ClerkySaif KhawajaYC Winter 2022Founded Shinkei SystemsJase WilsonYC S20Founded ReadyDileep ThazhmonSummer 2020Founded JeevesPiotr KarwatkaYC Summer 2023Founded refineErich LehmannW21Founded MeetAnywayJack ChapmanS23Founded Cardinal GrayAmadeo PellicceW23Founded OpenIntLeeho LimYC Winter 2021Founded EncordKirthi BanothuYC Fall 2024Founded attimetXiaoyu LiYC Fall 2024Founded attimetBrian MerrittYC Winter 2015Founded SeedIgor MarinelliYC Winter 2021Founded TractianRyan MarienYC Winter 2018Founded BioRenderMike StachowiakYC Winter 2012Founded MyVRMarkus NordvikYC Winter 2012Founded MyVRNathan H. LeungSpring 2026Founded HarborAlbert CaiYC Spring 2026Founded HarborArjun SalujaYC Winter 2026Founded BookoOmar JarrahP26Founded Playabl.aiRyan WegnerYC Summer 2017Founded AudmReece GriffithsYC Summer 2023Founded Deasy LabsIfe OyedeleYC Summer 2018Founded Kobo360Alex BaikovitzYC Summer 2021Founded Mach9James TamplinYC Summer 2011Founded FirebaseJonathan BaerYC Summer 2024Founded OverlapRitik MalhotraYC Winter 2020Founded SavvyScott PhillipsYC Winter 2020Founded Perceptive TechnologiesRavi ChachraYC Winter 2022Founded VantedgeAIShevy KarbasiYC Winter 2021Founded MoichorRoujia WenYC Winter 2022Founded SeaboundKartik TiwariYC Summer 2023Founded Andromeda SurgicalThomas KaratzasYC Fall 2026Founded TerseOlivier Simard-MorissetteYC Fall 2026Founded TerseShiva AdireddyYC Summer 2017Founded AdvanoSwapnil JainYC Winter 2018Founded Observe.AIMagnus VonenYC Summer 2026Founded AudunDan ChișuYC Summer 2018Founded Four GrowersAkhil AggarwalYC Summer 2026Founded General Context LabsCorey BertherYC Winter 2026Founded Khotan (formerly Pollinate)David LalorYC Winter 2024Founded ConsulJunhao ChenYC Fall 2026Founded HABUFrank LiuYC Summer 2026Founded General Context LabsYan FuYC Winter 2023Founded Berry
Frequently asked questions
- What is the Y Combinator mafia?
- The Y Combinator mafia is the network of 10,657 people who came through Y Combinator and went on to found or lead other companies, including GrayPass, Cyclon, Ageospatial, Moons, Opennote.
- Who is in the Y Combinator mafia?
- Notable members include Arav Mathur (GrayPass), Aditya Ranjan (GrayPass), Adam Zinebi (Cyclon), Thomas Kiefer (Cyclon), Maaz Sheikh (Ageospatial), Alexander Clapp (Moons), Vedant Vyas (Opennote), Chris Chae (Relate), among 10,657 tracked members.
- What companies did Y Combinator alumni found?
- Companies founded by Y Combinator alumni include GrayPass, Cyclon, Ageospatial, Moons, Opennote, Relate, BIOS Health, ARC Prize Foundation, Housewarming, Mozper.