The Define Ventures Mafia
10 people came through Define Ventures and went on to found or lead other companies.
Frank WilliamsVenture PartnerFounded Advisory Board +1Toby CosgroveHealthcare AdvisorFounded Cleveland ClinicBruce BroussardVenture PartnerFounded UsoncologyCarolyn MagillVenture PartnerFounded Remedy PartnersA.G. BreitensteinHealthcare AdvisorFounded FolxSeth CohenCommercial AdvisorFounded OODA HealthQuinn WangAI Fellow Fall ‘25 CohortFounded Quadrant EyeMartin BittnerAI FellowFounded Redouble AIPeter ChienAI FellowFounded Kaigo HealthLukas KlaiberAI FellowFounded Kaigo Health
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Frequently asked questions
- What is the Define Ventures mafia?
- The Define Ventures mafia is the network of 10 people who came through Define Ventures and went on to found or lead other companies, including Advisory Board, Cleveland Clinic, Usoncology, Remedy Partners, Folx.
- Who is in the Define Ventures mafia?
- Notable members include Frank Williams (Advisory Board), Toby Cosgrove (Cleveland Clinic), Bruce Broussard (Usoncology), Carolyn Magill (Remedy Partners), A.G. Breitenstein (Folx), Seth Cohen (OODA Health), Quinn Wang (Quadrant Eye), Martin Bittner (Redouble AI), among 10 tracked members.
- What companies did Define Ventures alumni found?
- Companies founded by Define Ventures alumni include Advisory Board, Cleveland Clinic, Usoncology, Remedy Partners, Folx, OODA Health, Quadrant Eye, Redouble AI, Kaigo Health.