Founder Directory
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Founders3
Known for these resultsRole100%Role is parsed from founder titles in yc.db. Known for 100% 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-company67%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 67% 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.
- Eric Riesel@ericrieselFounder/CTO · 83 SciencesS26Industrials · San Francisco
- Ian NaccarellaFounder/CEO · 83 SciencesS26Industrials · San Francisco
- Yankang YangFounder/COO · 83 SciencesS26Industrials · San Francisco
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Eric Riesel83 SciencesFounder/CTOSummer 2026IndustrialsSan Francisco, United States3https://x.com/ericrieselIan Naccarella83 SciencesFounder/CEOSummer 2026IndustrialsSan Francisco, United States3—Yankang Yang83 SciencesFounder/COOSummer 2026IndustrialsSan Francisco, United States3—
Showing 1–3 of 3 founders
Eric Riesel
Founder/CTO·83 Sciences
PRIMARY INFO
RoleFounder/CTO
Team size3
BatchSummer 2026
LocationSan Francisco, United States
Company statusActive
StageEarly
BIO
Founder at 83 Sciences. Experimental chemist and ML researcher with a PhD in inorganic chemistry from MIT, where I built machine learning systems to analyze complex materials data in minutes instead of days. My research spans quantum materials, generative models, and experimental data analysis, including one of the first generative approaches for chemical experimental data. BA in Chemistry from Columbia.
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
83 Sciences
AI-native materials discovery powered by unpublished experimental data
IndustryIndustrials
Website83sciences.ai
Team size3
LocationSan Francisco, United States
BatchSummer 2026
