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Xcimer Energy

xcimer.energy ↗

Builds high-energy excimer laser systems to commercialize laser-driven inertial fusion energy; Phoenix prototype now operational in Denver; Athena power plant targeting 400 MW by 2035

FusionEarlyDenver, COFounded 2022

The interesting angle

Founded 2022; DOE approved their fusion power plant roadmap in June 2026; backed by Breakthrough Energy, Lowercarbon Capital, and Hedosophia; the only fusion company with a working prototype laser in Colorado; Canary Media covered their raise; defense applications also being developed alongside energy

Related in Fusion

Marvel Fusion
Munich, Germany / Fort Collins, CO facility
Horne Technologies
Longmont, CO
Last updated July 2026Sources: [1][2][3]

Snapshot

Funding
$101M
Stage
Early
HQ
Denver, CO
Founded
2022
Target customer
Utility, Enterprise / Industrial

Links

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