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February 22, 2026
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Category: Mainspring Energy

Bill Gates Clean power business Mainspring closes hefty $290m Series E round

Clean power business Mainspring closes hefty $290m Series E round

Clean power generation provider Mainspring Energy has picked up a hefty $290m Series E round from backers including the Canada Pension Plan Investment Board. The post Clean power business Mainspring closes hefty $290m Series E