Founder Directory
Built by Keitoto
Founders5
Known for these resultsRole0%Role is parsed from founder titles in yc.db. Known for 0% 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-company20%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 20% of these rows have at least one match.School80%School is matched from bios, case-sensitive for acronyms. 80% of these rows have at least one match.
- Rebecca Lee@beccableeFounder · ElayneS24Fintech · New York
- David Paffenholz@davepaffenholzFounder · JuiceboxS22B2B · Los Angeles
- Ishan Gupta@ishangptaFounder · JuiceboxS22B2B · Los Angeles
- Rebecca Lee@beccableeFounder · CashmereW22Fintech · San Francisco
- Justin Hubert@Juicebox775Founder · Gym ClassW22Consumer · San Francisco
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Rebecca LeeElayne2× YCFounderSummer 2024FintechNew York, United States8https://x.com/beccableeDavid PaffenholzJuiceboxFounderSummer 2022B2BLos Angeles, United States65https://x.com/davepaffenholzIshan GuptaJuiceboxFounderSummer 2022B2BLos Angeles, United States65https://x.com/ishangptaRebecca LeeCashmere2× YCFounderWinter 2022FintechSan Francisco, United States3https://x.com/beccableeJustin HubertGym ClassFounderWinter 2022ConsumerSan Francisco, United States20https://x.com/Juicebox775
Showing 1–5 of 5 founders
Paul Katsen
Founder·Gym Class
PRIMARY INFO
RoleFounder· not in title
Team size20
BatchWinter 2022
LocationSan Francisco, United States
Company statusActive
StageGrowth
BIO
Cofounder Gym Class (W22) and cofounded Blockspring (S14) which exited to Coinbase. Led Product for Twitter's Home feed, the company's largest surface with ~200M daily active users. Shipped consumer crypto products at Coinbase - like USDC Interest, Coinbase Card, instant debit withdrawals, instant deposit, global send/receive, and more.
Ex-company, school and discipline below are derived from this bio. Nothing is inferred when the bio is missing.
BACKGROUND
Credentialsnone mentioned
Disciplinenot detectedKeyword match from the bio text, not a classifier.
TRACK RECORD
Exit mentioned in bio
COMPANY CONTEXT
Gym Class
Connecting the world by simulating it
Co-foundersJustin Hubert@Juicebox775
