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Sapphire Technologies makes turboexpanders that recover energy from gas pressure reduction.
Sapphire Technologies develops FreeSpin® In-line Turboexpanders that convert energy from gas expansion into electricity for industrial customers, including companies in natural gas and hydrogen. The company is based in the US and raised USD 12.54 million in Series C funding in September 2025, led by Mitsubishi Heavy Industries with Cooper and Company, Energy Capital Ventures and Equinor Ventures participating.
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