Founder Directory
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Founders77
Known for these resultsRole34%Role is parsed from founder titles in yc.db. Known for 34% of these rows — the rest have no title at all, mostly 2019–2023. Those rows stay in the result and are counted as Unknown, never as No.Bio90%Bio coverage: 90% of these founders have a bio on their YC profile. Every bio-derived facet (ex-company, school, credentials, discipline) is Unknown for the rest.Ex-company21%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 21% of these rows have at least one match.School34%School is matched from bios, case-sensitive for acronyms. 34% of these rows have at least one match.
- Can Celik@cancelikFounder/CEO · herdrF26B2B · Ankara
- Aditya Vellanki@aditya_vellankiFounder/CTO · Sentient OSF26B2B · San Francisco
- Jesai TarunFounder/CEO · Sentient OSF26B2B · San Francisco
- Jeffrey Lin@JeffjinlinFounder/CTO · DatoricS26B2B · San Francisco
- Nikhil ReddyFounder/CEO · DatoricS26B2B · San Francisco
- Alexander Urbanski@urban_alex42Founder · UltrasoniumS26Industrials · Boston
- Chris CarterFounder · UltrasoniumS26Industrials · Boston
- Hunter BrownFounder · UltrasoniumS26Industrials · Boston
- Jack QiuFounder/CEO · UltrasoniumS26Industrials · Boston
- Akira Tong@akkkkiiraFounder/CTO · Arga LabsX26B2B · San Francisco
- Carlos VolanteFounder · RuntimeX26B2B · San Francisco
- Mark PothenFounder/CEO · Beacon HealthW26Healthcare · San Francisco
- Obinna Akahara@ObinnaAkaFounder/CTO · Beacon HealthW26Healthcare · San Francisco
- Humza Ahmed@H4mzaAhmedFounder/CEO · Automax.aiF25Real Estate and Construction · San Francisco
- Luk KoskaFounder/CTO · SF TensorF25B2B
- Tom KoskaFounder · SF TensorF25B2B
- Deokhaeng Lee@duckduckheroFounder · CharS25B2B · Seoul
- John Jeong@computelessFounder/CEO · CharS25B2B · Seoul
- Yujong Lee@yujongleeFounder · CharS25B2B · Seoul
- Pablo Hansen@thepablohansenFounder · ProliferateS25B2B · San Francisco
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Can CelikherdrFounder/CEOFall 2026B2BAnkara, Turkey1https://x.com/cancelikAditya VellankiSentient OSFounder/CTOFall 2026B2BSan Francisco, United States2https://x.com/aditya_vellankiJesai TarunSentient OSFounder/CEOFall 2026B2BSan Francisco, United States2—Jeffrey LinDatoricFounder/CTOSummer 2026B2BSan Francisco, United States2https://x.com/JeffjinlinNikhil ReddyDatoricFounder/CEOSummer 2026B2BSan Francisco, United States2—Alexander UrbanskiUltrasoniumFounderSummer 2026IndustrialsBoston, United States5https://x.com/urban_alex42Chris CarterUltrasoniumFounderSummer 2026IndustrialsBoston, United States5—Hunter BrownUltrasoniumFounderSummer 2026IndustrialsBoston, United States5—Jack QiuUltrasoniumFounder/CEOSummer 2026IndustrialsBoston, United States5—Akira TongArga LabsFounder/CTOSpring 2026B2BSan Francisco, United States4https://x.com/akkkkiiraCarlos VolanteRuntimeFounderSpring 2026B2BSan Francisco, United States3—Mark PothenBeacon HealthFounder/CEOWinter 2026HealthcareSan Francisco, United States2—Obinna AkaharaBeacon HealthFounder/CTOWinter 2026HealthcareSan Francisco, United States2https://x.com/ObinnaAkaHumza AhmedAutomax.aiFounder/CEOFall 2025Real Estate and ConstructionSan Francisco, United States4https://x.com/H4mzaAhmedLuk KoskaSF TensorFounder/CTOFall 2025B2BUnknown6—Tom KoskaSF TensorFounderFall 2025B2BUnknown6—Deokhaeng LeeCharFounderSummer 2025B2BSeoul, South Korea2https://x.com/duckduckheroJohn JeongCharFounder/CEOSummer 2025B2BSeoul, South Korea2https://x.com/computelessYujong LeeCharFounderSummer 2025B2BSeoul, South Korea2https://x.com/yujongleePablo HansenProliferateFounderSummer 2025B2BSan Francisco, United States—https://x.com/thepablohansen
Showing 1–20 of 77 founders
John Jeong
Founder/CEO·Char
PRIMARY INFO
RoleFounder/CEO
Team size2
BatchSummer 2025
LocationSeoul, South Korea
Company statusActive
StageEarly
BIO
designing interfaces for humans and agents
Ex-company, school and discipline below are derived from this bio. Nothing is inferred when the bio is missing.
BACKGROUND
No notable employer or school mentioned in the bio.
Credentialsnone mentioned
Disciplinenot detectedKeyword match from the bio text, not a classifier.
TRACK RECORD
First YC company on record
COMPANY CONTEXT
CharThe AI notepad that knows and works for you
