The Hack Reactor Mafia
19 people came through Hack Reactor and went on to found or lead other companies.
Jake SeipStudent & Teaching AssistantFounded Aero +1Trevor HanusComputer Software EngineeringFounded Confido Legal +1Daniel LiebeskindFull-Stack Javascript EngineerFounded Topia Interactive +1Cheryl Sew HoyChief Marketing Officer (CMO)Founded Tiny HealthJosh LehmanInstructor (Reactor Prep)Founded StarcityHamzah ChaudharyAdvanced Software Engineering ImmersiveFounded LightdashRyan PerryFullstack EngineeringFounded PyroscopeJ.P. ZivalichComputer Software EngineeringFounded PipekitShawn DrostEXECUTIVE OFFICER AND MANAGERFounded Phoenix HydrogenMichael LamSoftware EngineeringFounded StuddyJohnny ChenOnsite Software Engineering Immersive ProgramFounded Toothy AIAkshay BuddigaSoftware EngineeringFounded TrabaAndrew MagliozziJavascript EngineerFounded MainstayCharles KimAdvanced Software Engineering Immersive ProgramFounded VibraniumTroy AmelotteLead InstructorFounded ToothioJasen LewComputer Software EngineeringFounded Glowing.ioChris BeeComputer Software EngineeringFounded DevplanEmily DongHacker in ResidenceFounded SnoutCharlie DepmanTechnical MentorFounded Ridepanda
Frequently asked questions
- What is the Hack Reactor mafia?
- The Hack Reactor mafia is the network of 19 people who came through Hack Reactor and went on to found or lead other companies, including Aero, Confido Legal, Topia Interactive, Tiny Health, Starcity.
- Who is in the Hack Reactor mafia?
- Notable members include Jake Seip (Aero), Trevor Hanus (Confido Legal), Daniel Liebeskind (Topia Interactive), Cheryl Sew Hoy (Tiny Health), Josh Lehman (Starcity), Hamzah Chaudhary (Lightdash), Ryan Perry (Pyroscope), J.P. Zivalich (Pipekit), among 19 tracked members.
- What companies did Hack Reactor alumni found?
- Companies founded by Hack Reactor alumni include Aero, Confido Legal, Topia Interactive, Tiny Health, Starcity, Lightdash, Pyroscope, Pipekit, Phoenix Hydrogen, Studdy.

















