Greg Piefer

Founder & CEO

Founder and CEO of SHINE Technologies. BS Electrical Engineering and Physics, MS and PhD Nuclear Engineering from University of Wisconsin-Madison. Founded Phoenix Nuclear Labs in 2005 (reacquired by SHINE in 2021). Multiple patents in fusion neutron generation.

Overview

Companies
1
Roles
Founder & CEO

Companies

1 company
SHINE Technologies $1.0B
Private Founder & CEO

Nuclear fusion company commercializing fusion-based technologies through a phased strategy: industrial testing (FLARE neutron source), medical isotopes (Lu-177 for cancer therapy, Mo-99 for diagnostics), nuclear waste recycling, and ultimately fusion energy. The Cassiopeia facility in Janesville, WI is the largest n.c.a. Lu-177 production facility in North America (200,000 doses/year capacity). Achieved first-ever visible Cherenkov radiation produced by fusion in 2023.

Founder data is compiled from company records, public announcements, and verified sources. Roles reflect current or most recent known positions.