TAE Technologies closes $250M Series G led by sovereign wealth investors
Foothill Ranch company brings cumulative private funding to roughly $1.45 billion ahead of Copernicus build.
TAE Technologies closed a $250 million Series G this week, led by a consortium of Gulf and Asian sovereign-wealth investors with continued participation from existing backers including Chevron Technology Ventures, Google, and the Wellcome Trust. The round brings cumulative private funding to roughly $1.45 billion.
Proceeds will fund construction of Copernicus, the company's next-generation field-reversed configuration device, designed to achieve sustained plasma temperatures above 150 million °C with a hydrogen-boron-11 fuel cycle as its eventual target. TAE has favored p–B11 throughout its 26-year history for its absence of high-energy neutron flux.
The Series G is the largest single private fusion round of 2026 to date, narrowly exceeding Pacific Fusion's $900 million Series A in absolute commitments to capacity expansion.
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