Horne Technologies

www.hornetechnologies.com ↗

Developing a superconducting, hybrid high-beta fusion research device using high-temperature superconductors and inertial electrostatic heating for terrestrial and space energy applications

FusionEarlyLongmont, COFounded 2008

The interesting angle

Founded 2008 by Tanner Horne, one of the longest-running fusion companies in Colorado, predating both Xcimer Energy and Marvel Fusion; achieved first plasma in 2017, brought a fusion-temperature machine online in 2022, and is targeting pilot plant design by 2025; also developing a high-flux neutron source for aerospace materials and electronics applications alongside its core reactor work

Related in Fusion

Xcimer Energy

Denver, CO

Marvel Fusion

Munich, Germany / Fort Collins, CO facility

Last updated August 2026Sources: [1][2][3]

Snapshot

Funding: $3.1M total (as of March 2022)
Stage: Early
HQ: Longmont, CO
Founded: 2008
Target customer: Utilities, national labs, aerospace/defense

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