Founder Directory
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Founders2
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-company50%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 50% of these rows have at least one match.School50%School is matched from bios, case-sensitive for acronyms. 50% of these rows have at least one match.
- Chad Rigetti@ChadRigettiFounder/CEO · Sygaldry TechnologiesX25Industrials · Ann Arbor
- Idalia FriedsonFounder · Sygaldry TechnologiesX25Industrials · Ann Arbor
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Chad RigettiSygaldry Technologies2× YCFounder/CEOSpring 2025IndustrialsAnn Arbor, United States—https://x.com/ChadRigettiIdalia FriedsonSygaldry TechnologiesFounderSpring 2025IndustrialsAnn Arbor, United States——
Showing 1–2 of 2 founders
Chad Rigetti
Founder/CEO·Sygaldry Technologies
PRIMARY INFO
RoleFounder/CEO
Team size—
BatchSpring 2025
LocationAnn Arbor, United States
Company statusActive
StageGrowth
BIO
I build quantum computers. Founder of Rigetti Computing (YC S14, NASDAQ: RGTI). ex-IBM. Yale Ph.D.
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
2× YC founderVerified prior exit
- S14Rigetti ComputingPublic
- X25Sygaldry TechnologiesActive · this entry
COMPANY CONTEXT
Sygaldry Technologies
quantum-accelerated AI servers
Co-foundersIdalia Friedson
Also founded · 1 more YC company
Rigetti ComputingPublicSummer 2014Quantum coherent supercomputing.
IndustrialsSan Francisco, United States51Open this entry
