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Ultrasonium

Manufacturing the metal parts the world runs on faster, cheaper, safer

y-combinatorSummer 2026Hard TechHardwareRoboticsManufacturing🇺🇸 Boston17 people
Alexander Urbanski
Chris Carter
Hunter Brown
Jack Qiu

Alexander Urbanski, Chris Carter +2 · 4 co-founders

2026Founded
Team
17
current
Co-founders
4
current
Stage
Founded
Source for Founded
Profile coverage4 of 8 · missing Funding, Signals, Customers, Stack / tools · last run 8/8/2026

About

The technologies that define this century, including data centers, rockets, satellites, and robots, are built from complex metal parts. As these systems advance, the parts get harder to make. Past a certain complexity, casting and machining stop working, and the advanced methods that remain are slow, expensive, and hazardous. Ultrasonium has invented a new manufacturing method to make these critical parts 15x faster and 75% cheaper than the methods they replace, in the U.S. and at scale. Solid metal feedstock goes in and a finished part safely comes out, controlled by a physical AI layer and novel control processes. The systems that matter most, in aerospace, energy, and compute, are demanding metal geometries that can't be machined or cast and are too expensive and slow to make with incumbent methods, at a moment when domestic manufacturing capacity is a national priority. Our founding team has built and innovated some of the most complex engineering systems known to man: quantum computers, superconductors, nuclear reactors, and novel aerospace alloy processing methods.

4 founders