Founder Directory
Built by Keitoto
Founders21
Known for these resultsRole29%Role is parsed from founder titles in yc.db. Known for 29% 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-company14%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 14% of these rows have at least one match.School24%School is matched from bios, case-sensitive for acronyms. 24% of these rows have at least one match.
- Eunju MoonFounder/CTO · InstinctW26Fintech · San Francisco
- Joon Won Song@mericsongFounder/CEO · InstinctW26Fintech · San Francisco
- Dale Wilson@0xdwilFounder/CTO · KarsaW25Fintech · New York
- Shahryar Hasnani@0xLilShahFounder/CEO · KarsaW25Fintech · New York
- Alejandro Rettig@AleRettigFounder · InfiniaW23Fintech · Montevideo
- Ianai UrwiczFounder · InfiniaW23Fintech · Montevideo
- David Fiala@davidjfialaFounder · KV CashW23B2B · San Francisco
- Adit PatelFounder · BlockscopeS22B2B · New York
- Maharshi PatelFounder · BlockscopeS22B2B · New York
- Akhil Reddy@akhilred_Founder/CEO · TheraS22B2B · New York
- MJ KimFounder · AYC FundW22Fintech · Seoul
- Alexander Carlson@xanderscarlsonFounder · DecentW22B2B · New York
- Charlie Durbin@cdsirenFounder · DecentW22B2B · New York
- Will Collier@wdcollier_Founder · DecentW22B2B · New York
- Will Kantaros@willkantarosFounder · DecentW22B2B · New York
- Adam Zvada@adamzvadaFounder · NFTScoringW22Consumer · New York
- David Mokos@davidmokos_Founder · NFTScoringW22Consumer · New York
- Billy Caballero@Billy_CaballeroFounder · HapiW21Fintech · San Francisco
- Dusko Kelez@duskokelezFounder · HapiW21Fintech · San Francisco
- Piero Sifuentes@pierosifuentespFounder · HapiW21Fintech · San Francisco
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Eunju MoonInstinctFounder/CTOWinter 2026FintechSan Francisco, United States5—Joon Won SongInstinctFounder/CEOWinter 2026FintechSan Francisco, United States5https://x.com/mericsongDale WilsonKarsaFounder/CTOWinter 2025FintechNew York, United States2https://x.com/0xdwilShahryar HasnaniKarsaFounder/CEOWinter 2025FintechNew York, United States2https://x.com/0xLilShahAlejandro RettigInfiniaFounderWinter 2023FintechMontevideo, Uruguay12https://x.com/AleRettigIanai UrwiczInfiniaFounderWinter 2023FintechMontevideo, Uruguay12—David FialaKV CashFounderWinter 2023B2BSan Francisco, United States—https://x.com/davidjfialaAdit PatelBlockscopeFounderSummer 2022B2BNew York, United States4—Maharshi PatelBlockscopeFounderSummer 2022B2BNew York, United States4—Akhil ReddyTheraFounder/CEOSummer 2022B2BNew York, United States15https://x.com/akhilred_MJ KimAYC FundFounderWinter 2022FintechSeoul, South Korea1—Alexander CarlsonDecentFounderWinter 2022B2BNew York, United States6https://x.com/xanderscarlsonCharlie DurbinDecentFounderWinter 2022B2BNew York, United States6https://x.com/cdsirenWill CollierDecentFounderWinter 2022B2BNew York, United States6https://x.com/wdcollier_Will KantarosDecentFounderWinter 2022B2BNew York, United States6https://x.com/willkantarosAdam ZvadaNFTScoringFounderWinter 2022ConsumerNew York, United States8https://x.com/adamzvadaDavid MokosNFTScoringFounderWinter 2022ConsumerNew York, United States8https://x.com/davidmokos_Billy CaballeroHapiFounderWinter 2021FintechSan Francisco, United States45https://x.com/Billy_CaballeroDusko KelezHapiFounderWinter 2021FintechSan Francisco, United States45https://x.com/duskokelezPiero SifuentesHapiFounderWinter 2021FintechSan Francisco, United States45https://x.com/pierosifuentesp
Showing 1–20 of 21 founders
Joon Won Song
Founder/CEO·Instinct
PRIMARY INFO
RoleFounder/CEO
Team size5
BatchWinter 2026
LocationSan Francisco, United States
Company statusActive
StageEarly
BIO
Quantitative Developer @ Squarepoint Capital League of Legends Challenger (2000LP+) KR/EUW/NA server, for 10 years. EECS @ Imperial College London
Ex-company, school and discipline below are derived from this bio. Nothing is inferred when the bio is missing.
BACKGROUND
Credentialsnone mentioned
DisciplineEngineerKeyword match from the bio text, not a classifier.
TRACK RECORD
First YC company on record
COMPANY CONTEXT
InstinctTrade your instinct
Co-foundersEunju Moon
