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MiRESSO

DeepTech · JP

Produces beryllium for fusion energy with a proprietary low-temperature refining process (below 300 degrees).

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Funding history

DateRoundAmount
Feb 2026Series A
MiRESSO closed its Series A at 4.23 billion yen, co-led by Spiral Capital and SBI Investment with 12 investors, for the BETA beryllium pilot plant.
$27.5M
Mar 2024Seed
MiRESSO, which develops low-temperature beryllium refining for fusion, raised 250M JPY in seed funding led by Genesia Ventures with the JGC MIRAI Innovation Fund and Mitsui Sumitomo Insurance Capital.
$1.6M

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