Founder Directory
Built by Keitoto
Founders3
Known for these resultsRole67%Role is parsed from founder titles in yc.db. Known for 67% 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.Bio100%Bio coverage: 100% 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-company33%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 33% of these rows have at least one match.School67%School is matched from bios, case-sensitive for acronyms. 67% of these rows have at least one match.
- Antonin Parrot@antonin_parrotFounder/CTO · River MarketsX26Fintech · San Francisco
- Oscar LevyFounder/CEO · River MarketsX26Fintech · San Francisco
- Salvador RiveroFounder · LevoS21Fintech · Mexico City
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Antonin ParrotRiver MarketsFounder/CTOSpring 2026FintechSan Francisco, United States2https://x.com/antonin_parrotOscar LevyRiver MarketsFounder/CEOSpring 2026FintechSan Francisco, United States2—Salvador RiveroLevoFounderSummer 2021FintechMexico City, Mexico6—
Showing 1–3 of 3 founders
Oscar Levy
Founder/CEO·River Markets
PRIMARY INFO
RoleFounder/CEO
Team size2
BatchSpring 2026
LocationSan Francisco, United States
Company statusActive
StageEarly
BIO
Co-Founder at River Markets. Previously quant at BlackRock managing models trading $6B, Sandbar Asset Management ($2B AUM hedge fund). MA Financial Engineering from UC Berkeley.
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
River Markets
Prime brokerage for prediction markets
IndustryFintech
Websiterivermarkets.com
Team size2
LocationSan Francisco, United States
BatchSpring 2026
Co-foundersAntonin Parrot@antonin_parrot
