The Checkr Mafia
11 people came through Checkr and went on to found or lead other companies.
Rex ZhouSr. Software EngineerFounded Magic Eden +1Tomas BarretoVP, Product and EngineeringFounded OkayMarcus RyuDirectorFounded Guidewire SoftwarePatrick J. CostelloChief of Staff to CEOFounded NaytevChris HollindaleHead of Product, Checkr TrustFounded ZestyDaniel YanisseFounder/CEOFounded Checkr GroupJonathan PerichonFounderFounded Checkr GroupJonathan KauSoftware EngineerFounded SatsumaHaris IkramHead of Product Management & DesignFounded CandorIQConor Brennan-BurkeSenior Product ManagerFounded HyperspellKyle MackDirector of SolutionsFounded Middesk
Frequently asked questions
- What is the Checkr mafia?
- The Checkr mafia is the network of 11 people who came through Checkr and went on to found or lead other companies, including Magic Eden, Okay, Guidewire Software, Naytev, Zesty.
- Who is in the Checkr mafia?
- Notable members include Rex Zhou (Magic Eden), Tomas Barreto (Okay), Marcus Ryu (Guidewire Software), Patrick J. Costello (Naytev), Chris Hollindale (Zesty), Daniel Yanisse (Checkr Group), Jonathan Perichon (Checkr Group), Jonathan Kau (Satsuma), among 11 tracked members.
- What companies did Checkr alumni found?
- Companies founded by Checkr alumni include Magic Eden, Okay, Guidewire Software, Naytev, Zesty, Checkr Group, Satsuma, CandorIQ, Hyperspell, Middesk.











