Founder Directory
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Founders252
Known for these resultsRole41%Role is parsed from founder titles in yc.db. Known for 41% 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.Bio85%Bio coverage: 85% 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-company19%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 19% of these rows have at least one match.School27%School is matched from bios, case-sensitive for acronyms. 27% of these rows have at least one match.
- Daniel Martinez@imwi90Founder & Product · Callbook AIS26B2B · San Francisco
- Diego Avellaneda@diego_torres173Founder/CEO · Callbook AIS26B2B · San Francisco
- Lance VickFounder/CTO · CautionS26B2B · George Town
- Joohyun (CJ) ChaFounder/CEO · Dawn IndustriesS26Industrials · San Francisco
- Robin LeeFounder/CTO · Dawn IndustriesS26Industrials · San Francisco
- Dan KomornyFounder/CTO · Earendil RoboticsS26Industrials · San Francisco
- James WaltonFounder/CEO · Earendil RoboticsS26Industrials · San Francisco
- Tien ChuFounder/CTO · LATOS26B2B · San Francisco
- Sanjeev ChauhanFounder/CEO · Synapse SemiconductorS26Industrials · Durham
- Bogdan PyzhFounder/COO · 9 MothersX26Industrials · Austin
- Roman KhomenkoFounder · 9 MothersX26Industrials · Austin
- Russell Smith@rhsFounder/CEO · 9 MothersX26Industrials · Austin
- Erik MeikeFounder/CTO · MadroneX26Industrials · San Francisco
- Leon Iwanowitsch@LeonIwanowitschFounder/CEO · OntoraX26B2B · San Francisco
- Cameron SpillerFounder/CTO · SoriaX26Fintech · New York
- Charles Pan@ceefryingpanFounder/CEO · StageX26B2B · San Francisco
- Dean Stratakos@DeanStratakosFounder/CTO · StageX26B2B · San Francisco
- Sergey Bunas@sergeybunasFounder/CTO · 21stW26B2B · San Francisco
- Mitch Radhuber@MRadhuberFounder/CEO · CorelayerW26B2B · San Francisco
- Shipra JhaFounder/CTO · CorelayerW26B2B · San Francisco
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Daniel MartinezCallbook AIFounder & ProductSummer 2026B2BSan Francisco, United States7https://x.com/imwi90Diego AvellanedaCallbook AIFounder/CEOSummer 2026B2BSan Francisco, United States7https://x.com/diego_torres173Lance VickCautionFounder/CTOSummer 2026B2BGeorge Town, Cayman Islands5—Joohyun (CJ) ChaDawn IndustriesFounder/CEOSummer 2026IndustrialsSan Francisco, United States2—Robin LeeDawn IndustriesFounder/CTOSummer 2026IndustrialsSan Francisco, United States2—Dan KomornyEarendil RoboticsFounder/CTOSummer 2026IndustrialsSan Francisco, United States7—James WaltonEarendil RoboticsFounder/CEOSummer 2026IndustrialsSan Francisco, United States7—Tien ChuLATOFounder/CTOSummer 2026B2BSan Francisco, United States2—Sanjeev ChauhanSynapse SemiconductorFounder/CEOSummer 2026IndustrialsDurham, United States2—Bogdan Pyzh9 MothersFounder/COOSpring 2026IndustrialsAustin, United States19—Roman Khomenko9 MothersFounderSpring 2026IndustrialsAustin, United States19—Russell Smith9 Mothers2× YCFounder/CEOSpring 2026IndustrialsAustin, United States19https://x.com/rhsErik MeikeMadroneFounder/CTOSpring 2026IndustrialsSan Francisco, United States2—Leon IwanowitschOntoraFounder/CEOSpring 2026B2BSan Francisco, United States3https://x.com/LeonIwanowitschCameron SpillerSoriaFounder/CTOSpring 2026FintechNew York, United States3—Charles PanStageFounder/CEOSpring 2026B2BSan Francisco, United States2https://x.com/ceefryingpanDean StratakosStageFounder/CTOSpring 2026B2BSan Francisco, United States2https://x.com/DeanStratakosSergey Bunas21stFounder/CTOWinter 2026B2BSan Francisco, United States3https://x.com/sergeybunasMitch RadhuberCorelayerFounder/CEOWinter 2026B2BSan Francisco, United States3https://x.com/MRadhuberShipra JhaCorelayerFounder/CTOWinter 2026B2BSan Francisco, United States3—
Showing 1–20 of 252 founders
Ksenia Lesko
Founder·Caution
PRIMARY INFO
RoleFounder· not in title
Team size5
BatchSummer 2026
LocationGeorge Town, Cayman Islands
Company statusActive
StageEarly
BIO
Co-founder at Caution, where we help teams run sensitive workloads in secure enclaves and cryptographically prove what code is running in production. I lead the business and product side; previously ran strategy and ops at Distrust (distrust.co) and led customer education and activation at Ada (ada.cx).
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
Disciplinenot detectedKeyword match from the bio text, not a classifier.
TRACK RECORD
First YC company on record
COMPANY CONTEXT
CautionHosting platform for software you don't want to have hacked
