Find your path to Jack
1,033 people in our graph share verified history with Jack — schools, employers, funds. One of them is your warm intro.
About
Jack Qiu is the founder and CEO of Ultrasonium, a materials science and advanced manufacturing company. He holds a PhD in EECS from MIT—where his research covered quantum computing, cryogenics, signal processing, hardware control, and advanced manufacturing—and a BA in Physics from UC Berkeley, and previously conducted research at Lawrence Berkeley National Laboratory, with a first-authored Nature Physics paper produced through work with MIT Lincoln Lab on IARPA and DoD programs.
Founder at UltrasoniumYC S26
Intro paths
Jack went through Y Combinator (Summer 2026) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Diana Hu, General Partner at Y Combinator — the partner who ran Ultrasonium's batch and knows the company first-hand. YC profile ↗
In turn, Jack can intro founders to Ultrasonium's investors below.
Ultrasonium's investors · 1
Co-founders at Ultrasonium
Experience
- UltrasoniumCo-Founder & CEOcurrent2026 — presentGreater Boston
- Massachusetts Institute of TechnologyDoctoral Student2017 — 2023Cambridge, MA
- University of California, BerkeleyUndergraduate Researcher2014 — 2017Quantum Nanoelectronics Laboratory
- Lawrence Berkeley National LaboratoryResearch Affiliate2013 — 2017
Skills & more
Languages Chinese · English · French · Spanish
From Jack's professional profile.
Frequently asked questions
- Who is Jack Qiu?
- Jack Qiu is the founder and CEO of Ultrasonium, a materials science and advanced manufacturing company. He holds a PhD in EECS from MIT—where his research covered quantum computing, cryogenics, signal processing, hardware control, and advanced manufacturing—and a BA in Physics from UC Berkeley, and previously conducted research at Lawrence Berkeley National Laboratory, with a first-authored Nature Physics paper produced through work with MIT Lincoln Lab on IARPA and DoD programs.
- Where does Jack Qiu work?
- Jack Qiu is Founder of Ultrasonium.
- What companies did Jack Qiu found?
- Jack Qiu founded Ultrasonium.
- Where did Jack Qiu go to school?
- Jack Qiu studied at Massachusetts Institute of Technology (Doctor of Philosophy - PhD, Electrical and Electronics Engineering); University of California, Berkeley (Physics); Phillips Exeter Academy.
Founder mafias
Y Combinator mafia10,230
Also came through, then founded or led a company.
+ 10,223 more
Massachusetts Institute of Technology mafia1,221
Also came through, then founded or led a company.
+ 1,214 more
Phillips Exeter Academy mafia53
Also came through, then founded or led a company.
+ 46 more
Same school
Also attended Massachusetts Institute of Technology2,000
+ 1,994 more
Also attended University of California, Berkeley2,000
+ 1,994 more
Also attended Phillips Exeter Academy156
+ 150 more
Shared employers
Also worked at Ultrasonium2
Also worked at Massachusetts Institute of Technology867
+ 861 more
Also worked at University of California, Berkeley531
+ 525 more
Also worked at Lawrence Berkeley National Laboratory132
+ 126 more










































