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X
Startup mafia · Lineage

The X.com Mafia

Founders who came out of X.com to start their own companies.

7 founders 34 companies Root: X.com →
Lineage of X.comX.comX.comElon MuskElon MuskZip2Zip2PayPalPayPalSpaceXSpaceXTeslaTeslaJack DorseyJack DorseyTwitterTwitterSquareSquareCash AppCash AppBluesky Social PBCBluesky Social PBCEvan WilliamsEvan WilliamsBloggerBloggerPyra LabsPyra LabsOdeoOdeoTwitterTwitterBiz StoneBiz StoneTwitterTwitterMediumMediumJellyJellyWest Co.West Co.Noah GlassNoah GlassOdeoOdeoTwitterTwitterOloOloJeremy StoppelmanJeremy StoppelmanYelpYelpRussel SimmonsRussel SimmonsYelpYelp
Each node links through — click a founder or company to keep exploring.

Every founder in the X.com lineage

7 founders · 34 companies

Founders who worked at or founded X.com and went on to build their own companies.

E Elon Musk 14 founded
Zip2 1996 PayPal 1998 SpaceX 2002 Tesla 2003 Hyperloop One 2014 OpenAI 2015 Neuralink 2016 The Boring Company 2016 Thud 2017 xAI 2023 X Corp. 2023 SpaceXAI 2023 X Holdings Corp 2023 America PAC
J Jack Dorsey 6 founded
Twitter 2006 Square 2009 Cash App 2013 Bluesky Social PBC 2021 Bluesky 2021 Omacom Foundation 2026
E Evan Williams 5 founded
Blogger 1999 Pyra Labs 1999 Odeo 2005 Twitter 2006 Medium 2012
B Biz Stone 4 founded
Twitter 2006 Medium 2012 Jelly 2013 West Co.
N Noah Glass 3 founded
Odeo 2005 Twitter 2006 Olo
J Jeremy Stoppelman 1 founded
Yelp 2004
R Russel Simmons 1 founded
Yelp 2004
Explore more lineages on the mafias index.