Founder Directory
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Founders2
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-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.
- Eric Silver@2998x10tothe8Founder/CEO · Mass MagneticsS26Industrials · Boston
- Matthew Groll@matthewxgrollFounder/CTO · Mass MagneticsS26Industrials · Boston
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Eric SilverMass MagneticsFounder/CEOSummer 2026IndustrialsBoston, United States3https://x.com/2998x10tothe8Matthew GrollMass MagneticsFounder/CTOSummer 2026IndustrialsBoston, United States3https://x.com/matthewxgroll
Showing 1–2 of 2 founders
Matthew Groll
Founder/CTO·Mass Magnetics
PRIMARY INFO
RoleFounder/CTO
Team size3
BatchSummer 2026
LocationBoston, United States
Company statusActive
StageEarly
BIO
Co-founder and CTO at Mass Magnetics. Former NASA/Columbia/MIT. Previously worked on thermal systems and guidance/navigation at NASA Johnson Space Center for ISS and Artemis lunar missions. Also previously worked as a Member of Technical Staff at Draper Laboratory. Studied Mechanical Engineering at Columbia, captaining the Formula SAE team and Robotics Club, then earned a Masters in Manufacturing from MIT.
Ex-company, school and discipline below are derived from this bio. Nothing is inferred when the bio is missing.
BACKGROUND
Credentialsnone mentioned
DisciplineEngineerKeyword match from the bio text, not a classifier.
TRACK RECORD
First YC company on record
COMPANY CONTEXT
Mass MagneticsUSA-made magnetics for aerospace, robotics, and defense.
IndustryIndustrials
Websitemassmagnetics.com/
Team size3
X—
LocationBoston, United States
BatchSummer 2026
Co-foundersEric Silver@2998x10tothe8
