John Jeong
FounderCo-founder, Co-CEO at Char
San Francisco, California, United States
FoundedChar Β· YC
About
John Jeong is co-founder and co-CEO of Char.
Co-founder, Co-CEO at CharYC S25
Intro paths
YC
John went through Y Combinator (Summer 2025) β any YC alum in your network can reach them through the YC community.
GP
Their group partner at YC was Brad Flora, Backing expeditions into the future β the partner who ran Char's batch and knows the company first-hand. YC profile β
β
In turn, John can intro founders to Char's investors below.
Char's investors Β· 1
Co-founders at Char
DL
Deokhaeng LeeFounder
YL
Yujong LeeFounder
Experience
- CharCo-Founder, Co-CEOcurrent2024 β presentSan Francisco Bay Area
- Pado LabsCo-founder & CEO2023 β 2024San Francisco Bay Area
- Various StartupsProduct & GTM2021 β 2023
- Republic of Korea ArmySergeant, Mine Specialist & Squad Leader2017 β 2019Pocheon, Gyeonggi, South Korea
Frequently asked questions
- Who is John Jeong?
- John Jeong is co-founder and co-CEO of Char.
- Where does John Jeong work?
- John Jeong is Co-founder, Co-CEO of Char.
- What companies did John Jeong found?
- John Jeong founded Char.
- Where did John Jeong go to school?
- John Jeong studied at Y Combinator (S25); Seoul National University (Bachelor of Science - BS, Nuclear Engineering); Sejong Science High School.
Founder mafias
Y Combinator mafia8,773
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Seoul National University mafia9
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Lloyd LeeBachelor of Arts (B.A.)Founded Hyperithm +1John S. KimComputer ScienceFounded SendbirdJoseph LeeBachelor of Business Administration - BBAFounded SynclyJean KaddourSemester AbroadFounded SagalandAndrew ChungBachelor's degreeFounded TypaJunyoung ParkBachelor's degreeFounded Typa
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Same school
Also attended Y Combinator2,000
Tarek MansourCo-founder & CEO of KalshiSuhail DoshiFounder of Mixpanel; founder of ParticleSubomi OluwalanaCo-founder & CEO of ConvoyArhaan A.Deeptech Fellow at Clear VenturesMaroof AhmedFounder at Octopus VenturesJustin SwartPartner at Bitkraft Esports Ventures
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Shared employers
Also worked at Char2
Also worked at Various Startups121
Michelle GonzalezCorporate Vice President and Global Head of M12Shakhina PulatovaInvestor at Storm VenturesAileen AllenPartner at Mercury FundEran SavirFounder & Managing Partner at Savyon VenturesBrian BenedictCo-Founder & CRO at Asymmetric Capital PartnersCaitlin ByrnesTalent at Audacious
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