Founder Directory
Built by Keitoto
Founders10
Known for these resultsRole50%Role is parsed from founder titles in yc.db. Known for 50% 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-company10%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 10% of these rows have at least one match.School50%School is matched from bios, case-sensitive for acronyms. 50% of these rows have at least one match.
- Feroze Mohideen@FerozeMohideenFounder/CTO · RobbyW26B2B · New York
- Joseph Schwarzmann@JoeSchwarzmannFounder/COO · RobbyW26B2B · New York
- Vineet JammalamadakaFounder/CEO · RobbyW26B2B · New York
- Pascal SchindlerFounder/CTO · SpherecastS24B2B · San Francisco
- Kat Wang@buildwithkatFounder/CEO · PartnerHQW24B2B · San Francisco
- Faraz RanaFounder · AffinityS23B2B · New York
- Peter GrecznerFounder · AffinityS23B2B · New York
- Hansen Qian@hansenqFounder · LightskiW23B2B · San Francisco
- Adil YusufFounder · Medium BiosciencesS21Healthcare · San Francisco
- Mohamed Hassan KaneFounder · Medium BiosciencesS21Healthcare · San Francisco
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Feroze MohideenRobbyFounder/CTOWinter 2026B2BNew York, United States3https://x.com/FerozeMohideenJoseph SchwarzmannRobbyFounder/COOWinter 2026B2BNew York, United States3https://x.com/JoeSchwarzmannVineet JammalamadakaRobbyFounder/CEOWinter 2026B2BNew York, United States3—Pascal SchindlerSpherecastFounder/CTOSummer 2024B2BSan Francisco, United States7—Kat WangPartnerHQFounder/CEOWinter 2024B2BSan Francisco, United States4https://x.com/buildwithkatFaraz RanaAffinityFounderSummer 2023B2BNew York, United States2—Peter GrecznerAffinityFounderSummer 2023B2BNew York, United States2—Hansen QianLightskiFounderWinter 2023B2BSan Francisco, United States1https://x.com/hansenqAdil YusufMedium BiosciencesFounderSummer 2021HealthcareSan Francisco, United States6—Mohamed Hassan KaneMedium BiosciencesFounderSummer 2021HealthcareSan Francisco, United States6—
Showing 1–10 of 10 founders
Peter Greczner
Founder·Affinity
PRIMARY INFO
RoleFounder· not in title
Team size2
BatchSummer 2023
LocationNew York, United States
Company statusActive
StageEarly
BIO
Peter is CTO of Affinity. He's been building and working with NYC start-ups for almost 15 years, including companies in AdTech, FinTech, and Crypto. As a founding team member of Bread, a pay-over-time FinTech, he led and built the engineering team to a successful $500M exit. In addition to having fun building startup's, Peter also loves to play basketball, run, try new board games and play outside with his 2 kids.
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
