Founder Directory
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Founders330
Known for these resultsRole53%Role is parsed from founder titles in yc.db. Known for 53% 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.Bio86%Bio coverage: 86% 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-company28%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 28% of these rows have at least one match.School28%School is matched from bios, case-sensitive for acronyms. 28% of these rows have at least one match.
- Aditya Vellanki@aditya_vellankiFounder/CTO · Sentient OSF26B2B · San Francisco
- Jesai TarunFounder/CEO · Sentient OSF26B2B · San Francisco
- Anton Livaja@antonlivajaFounder/CEO · CautionS26B2B · George Town
- Ksenia Lesko@xenushFounder · CautionS26B2B · George Town
- Lance VickFounder/CTO · CautionS26B2B · George Town
- Aman Raj@arxneo14Founder/CEO · DecaworkS26B2B · San Francisco
- Sarthak Aggarwal@_sarthak4Founder/CTO · DecaworkS26B2B · San Francisco
- Silen Naihin@silennaiFounder/CTO · Experiential LabsS26B2B · San Francisco
- Ahmed Aly@zachdotaiFounder/CEO · FabraixS26B2B · San Francisco
- ibrahim abduFounder/CTO · FabraixS26B2B · San Francisco
- Amol PantFounder/CTO · FlorinS26Fintech · San Francisco
- Aydin Sorensen@formerlypeterFounder · FlorinS26Fintech · San Francisco
- Shaurya Aggarwal@shauryaaggFounder/CEO · FlorinS26Fintech · San Francisco
- Nikos Dritsakos@nikos1Founder/CEO · GlenS26B2B · San Francisco
- Tien ChuFounder/CTO · LATOS26B2B · San Francisco
- Tymek Staniszewski@tymek_stanFounder/CEO · LATOS26B2B · San Francisco
- Anish Mariathasan@mariathasanishFounder/CEO · OsseusS26B2B
- Ayush PatelFounder/CTO · OsseusS26B2B
- Felix PengFounder/CTO · PeerS26B2B · San Francisco
- Arthur De Los Santos@_arthurdls_Founder/CTO · RindlerS26B2B · Boston
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Aditya VellankiSentient OSFounder/CTOFall 2026B2BSan Francisco, United States2https://x.com/aditya_vellankiJesai TarunSentient OSFounder/CEOFall 2026B2BSan Francisco, United States2—Anton LivajaCautionFounder/CEOSummer 2026B2BGeorge Town, Cayman Islands5https://x.com/antonlivajaKsenia LeskoCautionFounderSummer 2026B2BGeorge Town, Cayman Islands5https://x.com/xenushLance VickCautionFounder/CTOSummer 2026B2BGeorge Town, Cayman Islands5—Aman RajDecaworkFounder/CEOSummer 2026B2BSan Francisco, United States2https://x.com/arxneo14Sarthak AggarwalDecaworkFounder/CTOSummer 2026B2BSan Francisco, United States2https://x.com/_sarthak4Silen NaihinExperiential LabsFounder/CTOSummer 2026B2BSan Francisco, United States2https://x.com/silennaiAhmed AlyFabraixFounder/CEOSummer 2026B2BSan Francisco, United States2https://x.com/zachdotaiibrahim abduFabraixFounder/CTOSummer 2026B2BSan Francisco, United States2—Amol PantFlorinFounder/CTOSummer 2026FintechSan Francisco, United States3—Aydin SorensenFlorinFounderSummer 2026FintechSan Francisco, United States3https://x.com/formerlypeterShaurya AggarwalFlorinFounder/CEOSummer 2026FintechSan Francisco, United States3https://x.com/shauryaaggNikos DritsakosGlenFounder/CEOSummer 2026B2BSan Francisco, United States1https://x.com/nikos1Tien ChuLATOFounder/CTOSummer 2026B2BSan Francisco, United States2—Tymek StaniszewskiLATOFounder/CEOSummer 2026B2BSan Francisco, United States2https://x.com/tymek_stanAnish MariathasanOsseusFounder/CEOSummer 2026B2BUnknown2https://x.com/mariathasanishAyush PatelOsseusFounder/CTOSummer 2026B2BUnknown2—Felix PengPeerFounder/CTOSummer 2026B2BSan Francisco, United States2—Arthur De Los SantosRindlerFounder/CTOSummer 2026B2BBoston, United States2https://x.com/_arthurdls_
Showing 1–20 of 330 founders
Ahmed Aly
Founder/CEO·Fabraix
PRIMARY INFO
RoleFounder/CEO
Team size2
BatchSummer 2026
LocationSan Francisco, United States
Company statusActive
StageEarly
BIO
Co-founder @ Fabraix, building a frontier hacker agent that finds failure modes and security exploits in AI systems before real users do. Previously the first data scientist at Sequoia-backed Two, where he built AI systems for adversarial environments from scratch and scaled them to process $1B+ in annual B2B transactions, averting $50M in losses for multiple Fortune 150 companies. A published researcher with multiple papers in Q1 journals and a UCL PhD drop-out.
Ex-company, school and discipline below are derived from this bio. Nothing is inferred when the bio is missing.
BACKGROUND
CredentialsPhDDropout / Thiel
DisciplineResearcherKeyword match from the bio text, not a classifier.
TRACK RECORD
First YC company on record
COMPANY CONTEXT
FabraixThe world's frontier hacker for AI agents.
Co-foundersibrahim abdu
