Founder Directory
Built by Keitoto
Founders19
Known for these resultsRole68%Role is parsed from founder titles in yc.db. Known for 68% 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.Bio79%Bio coverage: 79% 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-company42%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 42% of these rows have at least one match.School5%School is matched from bios, case-sensitive for acronyms. 5% of these rows have at least one match.
- Raj Jagiasi@raj_jagiasiFounder/CEO · Stratum IndustriesS26Government · New York
- Sergey Bunas@sergeybunasFounder/CTO · 21stW26B2B · San Francisco
- James Heaney@jvheaneyFounder/CTO · GradeW26Fintech · San Francisco
- Lotanna Ezeike@lottsnomadFounder/CEO · GradeW26Fintech · San Francisco
- Alex AvnitFounder/CRO · PalomaS25B2B · San Francisco
- Nazli Danis@nazlidanisFounder/CEO · PalomaS25B2B · San Francisco
- Saurav BubberFounder/CEO · Fuse AIW25B2B · San Francisco
- Shubham Choudhary@techie_ShubhamFounder/CTO · FirstWorkS24B2B · San Francisco
- Junior Garcia@jrgarciadevFounder/CEO · HeroUIS24B2B · Buenos Aires
- Advith ChelikaniFounder · PylonW23B2B · San Francisco
- Marty Kausas@marty_kausasFounder · PylonW23B2B · San Francisco
- Robert EngFounder · PylonW23B2B · San Francisco
- Kesava Kirupa Dinakaran@kesava_kirupaFounder · LuminaiS20B2B · San Francisco
- Gaspard de LacroixFounder · SkypherW20B2B · New York
- Louis MutricyFounder · SkypherW20B2B · New York
- Alex Bouaziz@bouazizalexFounder/CEO · DeelW19B2B · San Francisco
- Shuo Wang@copernicusswFounder/CRO · DeelW19B2B · San Francisco
- Nir SmadarFounder/CTO · AvoS18Consumer · Tel Aviv
- Deepak Chhugani@dchhuganiFounder/CEO · NuvocargoW18B2B · New York
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Raj JagiasiStratum IndustriesFounder/CEOSummer 2026GovernmentNew York, United States2https://x.com/raj_jagiasiSergey Bunas21stFounder/CTOWinter 2026B2BSan Francisco, United States3https://x.com/sergeybunasJames HeaneyGradeFounder/CTOWinter 2026FintechSan Francisco, United States2https://x.com/jvheaneyLotanna EzeikeGradeFounder/CEOWinter 2026FintechSan Francisco, United States2https://x.com/lottsnomadAlex AvnitPalomaFounder/CROSummer 2025B2BSan Francisco, United States3—Nazli DanisPalomaFounder/CEOSummer 2025B2BSan Francisco, United States3https://x.com/nazlidanisSaurav BubberFuse AIFounder/CEOWinter 2025B2BSan Francisco, United States12—Shubham ChoudharyFirstWorkFounder/CTOSummer 2024B2BSan Francisco, United States9https://x.com/techie_ShubhamJunior GarciaHeroUIFounder/CEOSummer 2024B2BBuenos Aires, Argentina5https://x.com/jrgarciadevAdvith ChelikaniPylonFounderWinter 2023B2BSan Francisco, United States120—Marty KausasPylonFounderWinter 2023B2BSan Francisco, United States120https://x.com/marty_kausasRobert EngPylonFounderWinter 2023B2BSan Francisco, United States120—Kesava Kirupa DinakaranLuminaiFounderSummer 2020B2BSan Francisco, United States31https://x.com/kesava_kirupaGaspard de LacroixSkypherFounderWinter 2020B2BNew York, United States12—Louis MutricySkypherFounderWinter 2020B2BNew York, United States12—Alex BouazizDeelFounder/CEOWinter 2019B2BSan Francisco, United States5000https://x.com/bouazizalexShuo WangDeelFounder/CROWinter 2019B2BSan Francisco, United States5000https://x.com/copernicusswNir SmadarAvoFounder/CTOSummer 2018ConsumerTel Aviv, Israel10—Deepak ChhuganiNuvocargoFounder/CEOWinter 2018B2BNew York, United States100https://x.com/dchhugani
Showing 1–19 of 19 founders
Sergey Bunas
Founder/CTO·21st
PRIMARY INFO
RoleFounder/CTO
Team size3
BatchWinter 2026
LocationSan Francisco, United States
Company statusActive
StageEarly
BIO
CS dropout. Senior Software Engineer at Deel (W19). Built Perplexity before Perplexity (Suggesty, 2022 — #1 Product Hunt, featured in Google's internal newsletter). Solo-built a Figma competitor pre-AI (Stage, 10K users). Cambridge AI hackathon winner (solo)
Ex-company, school and discipline below are derived from this bio. Nothing is inferred when the bio is missing.
BACKGROUND
CredentialsDropout / Thiel
DisciplineEngineerKeyword match from the bio text, not a classifier.
TRACK RECORD
First YC company on record
COMPANY CONTEXT
21stUI building blocks for the agentic internet
Co-foundersSerafim Korablev@serafimcloud
