Founder Directory
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Founders7
Known for these resultsRole29%Role is parsed from founder titles in yc.db. Known for 29% 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.School43%School is matched from bios, case-sensitive for acronyms. 43% of these rows have at least one match.
- Alexander Urbanski@urban_alex42Founder · UltrasoniumS26Industrials · Boston
- Chris CarterFounder · UltrasoniumS26Industrials · Boston
- Hunter BrownFounder · UltrasoniumS26Industrials · Boston
- Jack QiuFounder/CEO · UltrasoniumS26Industrials · Boston
- Christian Iacullo@iaculchFounder · AlloyW23B2B · Sydney
- Simon Kubica@simon_kubicaFounder · AlloyW23B2B · Sydney
- Gregg Mojica@greggmojicaFounder/CEO · KinterW20B2B · San Francisco
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Alexander UrbanskiUltrasoniumFounderSummer 2026IndustrialsBoston, United States5https://x.com/urban_alex42Chris CarterUltrasoniumFounderSummer 2026IndustrialsBoston, United States5—Hunter BrownUltrasoniumFounderSummer 2026IndustrialsBoston, United States5—Jack QiuUltrasoniumFounder/CEOSummer 2026IndustrialsBoston, United States5—Christian IaculloAlloyFounderWinter 2023B2BSydney, Australia5https://x.com/iaculchSimon KubicaAlloyFounderWinter 2023B2BSydney, Australia5https://x.com/simon_kubicaGregg MojicaKinterFounder/CEOWinter 2020B2BSan Francisco, United States30https://x.com/greggmojica
Showing 1–7 of 7 founders
Jack Qiu
Founder/CEO·Ultrasonium
PRIMARY INFO
RoleFounder/CEO
Team size5
BatchSummer 2026
LocationBoston, United States
Company statusActive
StageEarly
BIO
Founder & CEO of Ultrasonium. MIT PhD in EECS with research spanning quantum computing, cryogenics, signal processing, hardware control and advanced manufacturing. First author of a Nature Physics publication in collaboration with MIT Lincoln Lab under IARPA and DoD programs. Former researcher at Lawrence Berkeley National Laboratory. BA in Physics from UC Berkeley.
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
UltrasoniumManufacturing the metal parts the world runs on faster, cheaper, safer
