Founder Directory
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Founders97
Known for these resultsRole52%Role is parsed from founder titles in yc.db. Known for 52% 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.Bio84%Bio coverage: 84% 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.School26%School is matched from bios, case-sensitive for acronyms. 26% of these rows have at least one match.
- Diego Avellaneda@diego_torres173Founder/CEO · Callbook AIS26B2B · San Francisco
- Arjun Chaliha@arjunjchalihaFounder/CTO · MarbleS26B2B · New York
- Aaron ZhangFounder/CEO · PeerS26B2B · San Francisco
- Felix PengFounder/CTO · PeerS26B2B · San Francisco
- Assil HalimiFounder/CEO · Apollo Atomics, Inc.X26Industrials · Boston
- Nikolai VoglerFounder/CTO · BeeSafe AIW26B2B · San Francisco
- Clement BarthesFounder/CEO · CongruentW26Industrials · San Francisco
- Shubham Malhotra@ShubhamMal72313Founder/CTO · RunAnywhereW26B2B · San Francisco
- Anton ZaliznyiCo-founder & Chief AI Officer · PhasesS25Healthcare · San Francisco
- Ahmed Abdulaal@AAY1993Founder/CEO · Mecha HealthW25Healthcare · San Francisco
- Jason SullivanFounder/CEO · DistroS24B2B · San Francisco
- Gino Guatavita@GinoGuatavitaFounder/CTO · KontigoS24Fintech · San Francisco
- jesus alberto Castillo ferrer@jecastillofFounder/CEO · KontigoS24Fintech · San Francisco
- Alexander Haddad@AF_HaddadFounder · Kopra BioS24Healthcare · San Francisco
- Joshua RametteFounder/CEO · UndermindS24B2B · San Francisco
- Dimitris Fotis Sakellariou@dsacellariusFounder/CEO · PiramidalW24Healthcare · New York
- Kehinde WilliamsFounder/COO · ShepherdW24Education
- Marcella ImoisiliFounder/CTO · ShepherdW24Education
- Moyosoreoluwa Orekoya@MoyoOrekoyaFounder/CEO · ShepherdW24Education
- Gabriel WilsonFounder/CTO · TerrakottaW24B2B · Seattle
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Diego AvellanedaCallbook AIFounder/CEOSummer 2026B2BSan Francisco, United States7https://x.com/diego_torres173Arjun ChalihaMarbleFounder/CTOSummer 2026B2BNew York, United States2https://x.com/arjunjchalihaAaron ZhangPeerFounder/CEOSummer 2026B2BSan Francisco, United States2—Felix PengPeerFounder/CTOSummer 2026B2BSan Francisco, United States2—Assil HalimiApollo Atomics, Inc.Founder/CEOSpring 2026IndustrialsBoston, United States——Nikolai VoglerBeeSafe AIFounder/CTOWinter 2026B2BSan Francisco, United States3—Clement BarthesCongruentFounder/CEOWinter 2026IndustrialsSan Francisco, United States2—Shubham MalhotraRunAnywhereFounder/CTOWinter 2026B2BSan Francisco, United States5https://x.com/ShubhamMal72313Anton ZaliznyiPhasesCo-founder & Chief AI OfficerSummer 2025HealthcareSan Francisco, United States3—Ahmed AbdulaalMecha HealthFounder/CEOWinter 2025HealthcareSan Francisco, United States4https://x.com/AAY1993Jason SullivanDistroFounder/CEOSummer 2024B2BSan Francisco, United States11—Gino GuatavitaKontigoFounder/CTOSummer 2024FintechSan Francisco, United States10https://x.com/GinoGuatavitajesus alberto Castillo ferrerKontigoFounder/CEOSummer 2024FintechSan Francisco, United States10https://x.com/jecastillofAlexander HaddadKopra BioFounderSummer 2024HealthcareSan Francisco, United States2https://x.com/AF_HaddadJoshua RametteUndermindFounder/CEOSummer 2024B2BSan Francisco, United States——Dimitris Fotis SakellariouPiramidalFounder/CEOWinter 2024HealthcareNew York, United States10https://x.com/dsacellariusKehinde WilliamsShepherdFounder/COOWinter 2024EducationUnknown5—Marcella ImoisiliShepherdFounder/CTOWinter 2024EducationUnknown5—Moyosoreoluwa OrekoyaShepherdFounder/CEOWinter 2024EducationUnknown5https://x.com/MoyoOrekoyaGabriel WilsonTerrakottaFounder/CTOWinter 2024B2BSeattle, United States5—
Showing 1–20 of 97 founders
Nina Montaña Brown
Founder/CTO·Mecha Health
PRIMARY INFO
RoleFounder/CTO
Team size4
BatchWinter 2025
LocationSan Francisco, United States
Company statusActive
StageEarly
BIO
Solving the interpretive moment in radiology. ex-ML Engineer across multiple medical device startups, with experience in FDA and CE marked medical devices, as well as LLM safety in healthcare. My PhD in Medical Imaging (UCL) focussed on surgical vision; my work has been patented, cited 100+ times, and published across the world's highest impact scientific venues (Nature, NeurIPS, ICLR).
Ex-company, school and discipline below are derived from this bio. Nothing is inferred when the bio is missing.
BACKGROUND
CredentialsPhD
DisciplineResearcherKeyword match from the bio text, not a classifier.
TRACK RECORD
First YC company on record
COMPANY CONTEXT
Mecha HealthFoundation models to automate x-ray analysis for radiologists
IndustryHealthcare
Websitemecha-health.ai/
Team size4
X—
LocationSan Francisco, United States
BatchWinter 2025
