What is the Y Combinator mafia?

The Y Combinator mafia is the network of 33 people who came through Y Combinator and went on to found or lead other companies, including Posterous, Michael Seibel, Assembly Biosciences, Softmax, Clickpass.

Who is in the Y Combinator mafia?

Notable members include Garry Tan (Posterous), Michael Seibel (Michael Seibel), Uri Lopatin (Assembly Biosciences), Emmett Shear (Softmax), Immad Akhund (Clickpass), Brett Gibson (Slinkset), Eric Wu (Sobofoods), Gustaf Alströmer (Heysan), among 33 tracked members.

What companies did Y Combinator alumni found?

Companies founded by Y Combinator alumni include Posterous, Michael Seibel, Assembly Biosciences, Softmax, Clickpass, Slinkset, Sobofoods, Heysan, OpenAI, Command AI.

The Y Combinator Mafia

33 people came through Y Combinator and went on to found or lead other companies.

Garry TanPresident & CEOFounded Posterous +1 Michael SeibelPart-time PartnerFounded Michael Seibel +1 Uri LopatinVisiting PartnerFounded Assembly Biosciences +2 Emmett ShearVisiting Group PartnerFounded Softmax +2 Immad AkhundPart-time PartnerFounded Clickpass +2 Brett GibsonSoftwareFounded Slinkset +1 Eric WuW18 BatchFounded Sobofoods +1 Gustaf AlströmerVisiting PartnerFounded Heysan Trevor BlackwellFounder, RetiredFounded OpenAI James EvansVisiting PartnerFounded Command AI Liz WesselVisiting Group PartnerFounded WayUp Avichal GargPart Time PartnerFounded Electric Capital Arnav SahuPrincipalFounded Wolfia Louis BerylPart-time PartnerFounded SolidEnergy Systems Corey CentenS15 alumnusFounded Bodyport Alex RodriguesW16 BatchFounded Embark Truck André FrirdichYC Batch S19Founded Kitekraft Austin WalkerStartup School Advisor; Mentor to Founders; Investment DiligenceFounded InnoVein Arup Roy-BurmanStartup FounderFounded Elemeno Health Derek GreenfieldiMicrobes (W15)Founded Industrial Microbes Rishabh PoddarMemberFounded SuperTokens Thomas EscourrouY CombinatorFounded Videopixie Pete CassonStartup SchoolFounded Collctiv Lucas MassonWinter 18 BatchFounded Konvu Mandar ShindeW21 Founder (Verified)Founded Blotout Startup Santiago SuárezPart-time Partner (Expert)Founded Addi Ingvar HelgasonYC - S17Founded Vitrolabs Joshua ReischerStudentFounded Health Note Amer AlamerParticipant at YC Summer Startup School [TeamUp]Founded TeamUp Godfrey OkekeFounder in Startup SchoolFounded Awele Technologies Inc Todd ThomasStartup AdvisorFounded Woodchuck Julian RiosY Combinator AlumFounded Eden Pamela Valdes EstevaFounder - YC Alum (W17)Founded Beek

Frequently asked questions

What is the Y Combinator mafia?: The Y Combinator mafia is the network of 33 people who came through Y Combinator and went on to found or lead other companies, including Posterous, Michael Seibel, Assembly Biosciences, Softmax, Clickpass.
Who is in the Y Combinator mafia?: Notable members include Garry Tan (Posterous), Michael Seibel (Michael Seibel), Uri Lopatin (Assembly Biosciences), Emmett Shear (Softmax), Immad Akhund (Clickpass), Brett Gibson (Slinkset), Eric Wu (Sobofoods), Gustaf Alströmer (Heysan), among 33 tracked members.
What companies did Y Combinator alumni found?: Companies founded by Y Combinator alumni include Posterous, Michael Seibel, Assembly Biosciences, Softmax, Clickpass, Slinkset, Sobofoods, Heysan, OpenAI, Command AI.