Founder Directory
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Founders31
Known for these resultsRole39%Role is parsed from founder titles in yc.db. Known for 39% 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.Bio87%Bio coverage: 87% 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-company23%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 23% of these rows have at least one match.School16%School is matched from bios, case-sensitive for acronyms. 16% of these rows have at least one match.
- Hamza Al-Ali@hamzawy998Founder/CEO · Playabl.aiX26Consumer · San Francisco
- Omar JarrahFounder/COO · Playabl.aiX26Consumer · San Francisco
- Sanad KiswaniFounder/CIO · Playabl.aiX26Consumer · San Francisco
- Joe Kennedy@joekndyFounder/CEO · MixyF25Consumer
- Jonah Siegle@jonahsiegleFounder/CTO · MixyF25Consumer
- Veer JunejaFounder/COO · FleetlineS25B2B · New York
- Max JunestrandFounder · LegoraW24B2B · Stockholm
- Vamsi SaladiFounder · ContourS23B2B · New York
- Jamie BalsillieFounder · HedgehogS22Industrials · San Francisco
- Arthur (Hyun June) Kim@kimmmarthurFounder · RelateS22B2B · Seoul
- Greg Sirotek@gregsirotekFounder · Glow EnergyW22Industrials · Los Angeles
- Daniel LiechtensteinFounder · HypercoreS21Fintech · Tel Aviv
- David Yahalomi@DavidYahalomiFounder · HypercoreS21Fintech · Tel Aviv
- Eitan FrailichFounder · HypercoreS21Fintech · Tel Aviv
- Tomer Moshe@tomosher1Founder · HypercoreS21Fintech · Tel Aviv
- Jialu TuFounder · Tuli HealthS21Healthcare · London
- Jiawei LiFounder · Tuli HealthS21Healthcare · London
- Enzo Avigo@0zneFounder · JuneW21B2B · San Francisco
- Ferruccio Balestreri@0xferruccioFounder · JuneW21B2B · San Francisco
- Isaq Ahmed MuktharFounder · SpenmoS20Fintech · Singapore
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Hamza Al-AliPlayabl.aiFounder/CEOSpring 2026ConsumerSan Francisco, United States10https://x.com/hamzawy998Omar JarrahPlayabl.aiFounder/COOSpring 2026ConsumerSan Francisco, United States10—Sanad KiswaniPlayabl.aiFounder/CIOSpring 2026ConsumerSan Francisco, United States10—Joe KennedyMixyFounder/CEOFall 2025ConsumerUnknown2https://x.com/joekndyJonah SiegleMixyFounder/CTOFall 2025ConsumerUnknown2https://x.com/jonahsiegleVeer JunejaFleetlineFounder/COOSummer 2025B2BNew York, United States11—Max JunestrandLegoraFounderWinter 2024B2BStockholm, Sweden400—Vamsi SaladiContourFounderSummer 2023B2BNew York, United States2—Jamie BalsillieHedgehogFounderSummer 2022IndustrialsSan Francisco, United States50—Arthur (Hyun June) KimRelateFounderSummer 2022B2BSeoul, South Korea7https://x.com/kimmmarthurGreg SirotekGlow EnergyFounderWinter 2022IndustrialsLos Angeles, United States6https://x.com/gregsirotekDaniel LiechtensteinHypercoreFounderSummer 2021FintechTel Aviv, Israel7—David YahalomiHypercoreFounderSummer 2021FintechTel Aviv, Israel7https://x.com/DavidYahalomiEitan FrailichHypercoreFounderSummer 2021FintechTel Aviv, Israel7—Tomer MosheHypercoreFounderSummer 2021FintechTel Aviv, Israel7https://x.com/tomosher1Jialu TuTuli HealthFounderSummer 2021HealthcareLondon, United Kingdom4—Jiawei LiTuli HealthFounderSummer 2021HealthcareLondon, United Kingdom4—Enzo AvigoJuneFounderWinter 2021B2BSan Francisco, United States6https://x.com/0zneFerruccio BalestreriJuneFounderWinter 2021B2BSan Francisco, United States6https://x.com/0xferruccioIsaq Ahmed MuktharSpenmoFounderSummer 2020FintechSingapore, Singapore200—
Showing 1–20 of 31 founders
SJ (Sangyong) Jung
Founder·Relate
PRIMARY INFO
RoleFounder· not in title
Team size7
BatchSummer 2022
LocationSeoul, South Korea
Company statusActive
StageEarly
BIO
SJ (CEO) was the co-founder and co-CEO of Sentbe (2015-2018), a fintech company offering cross-border money transfer services. At Sentbe, SJ built the first product and led the product team during the early stages. Today, Sentbe is valued at over $100M. With a background as a full-stack developer and experience in UX, SJ specializes in building small, high-performing product teams.
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
DisciplineEngineerKeyword match from the bio text, not a classifier.
TRACK RECORD
First YC company on record
COMPANY CONTEXT
RelateAll-in-One Sales and Marketing CRM for B2B teams
Co-foundersArthur (Hyun June) Kim@kimmmarthur
