Founder Directory
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Founders7
Known for these resultsRole43%Role is parsed from founder titles in yc.db. Known for 43% 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-company29%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 29% of these rows have at least one match.School57%School is matched from bios, case-sensitive for acronyms. 57% of these rows have at least one match.
- Tiger Wang@tigerjwangFounder/CTO · NessieF25Consumer · San Francisco
- Ben KoskaFounder/CEO · SF TensorF25B2B
- Luk KoskaFounder/CTO · SF TensorF25B2B
- Tom KoskaFounder · SF TensorF25B2B
- Aditya Rajagopal@adityaraja0Founder · nCompass TechnologiesW24B2B · New York
- Diederik VinkFounder · nCompass TechnologiesW24B2B · New York
- Henry Lee@hhleeFounder · Kern SystemsS19Healthcare · Boston
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Tiger WangNessieFounder/CTOFall 2025ConsumerSan Francisco, United States3https://x.com/tigerjwangBen KoskaSF TensorFounder/CEOFall 2025B2BUnknown6—Luk KoskaSF TensorFounder/CTOFall 2025B2BUnknown6—Tom KoskaSF TensorFounderFall 2025B2BUnknown6—Aditya RajagopalnCompass TechnologiesFounderWinter 2024B2BNew York, United States3https://x.com/adityaraja0Diederik VinknCompass TechnologiesFounderWinter 2024B2BNew York, United States3—Henry LeeKern SystemsFounderSummer 2019HealthcareBoston, United States3https://x.com/hhlee
Showing 1–7 of 7 founders
Anna Zhang
Founder/CEO·Nessie
PRIMARY INFO
RoleFounder/CEO
Team size3
BatchFall 2025
LocationSan Francisco, United States
Company statusActive
StageEarly
BIO
Co-Founder & CEO @ Nessie. Yale BS ‘24. Prev engineer @ Amazon's recommendation service. Shipped ML-powered features for billions of customers and led experiment that demonstrated a $200MM/year revenue impact. Obsessed with augmenting human cognition since high school, having conducted neuroscience research at The Rockefeller University. Founded Nessie with Tiger to build AI brains after hitting the 1-million-token limit in multiple Gemini chats.
Ex-company, school and discipline below are derived from this bio. Nothing is inferred when the bio is missing.
BACKGROUND
Credentialsnone mentioned
DisciplineResearcherKeyword match from the bio text, not a classifier.
TRACK RECORD
First YC company on record
COMPANY CONTEXT
Nessie
A shared context layer for you, your team, and your agents.
Co-foundersTiger Wang@tigerjwang
