Founder Directory
Built by Keitoto
Founders4
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-company0%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 0% of these rows have at least one match.School100%School is matched from bios, case-sensitive for acronyms. 100% of these rows have at least one match.
- Anish Mariathasan@mariathasanishFounder/CEO · OsseusS26B2B
- Liam Collins@liam_a_collinsFounder/CEO · ProxisS24B2B · San Francisco
- Fengjiao PengFounder · ShortbreadW23Consumer · San Francisco
- Tooraj ArvajehFounder · Perl StreetW22Fintech · Sydney
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Anish MariathasanOsseusFounder/CEOSummer 2026B2BUnknown2https://x.com/mariathasanishLiam CollinsProxisFounder/CEOSummer 2024B2BSan Francisco, United States3https://x.com/liam_a_collinsFengjiao PengShortbreadFounderWinter 2023ConsumerSan Francisco, United States4—Tooraj ArvajehPerl StreetFounderWinter 2022FintechSydney, Australia4—
Showing 1–4 of 4 founders
Anish Mariathasan
Founder/CEO·Osseus
PRIMARY INFO
RoleFounder/CEO
Team size2
BatchSummer 2026
Location
Company statusActive
StageEarly
BIO
Co-Founder at Osseus (YC S26). Prev. co-founded a compliance AI startup. ML research at a Harvard-HKU joint lab on computer vision for cancer research. MEng in Biomedical Engineering from Imperial College London, dropped Oxford PhD in AI for Health. Awarded academic scholarships for both.
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
