Skeleton Technologies Announces First Close of Pre-IPO Funding Round With Initial €33 Million Investment

The round adds new investors including Axon Partners Group, SmartCap, and Taiwania Capital, with additional investors expected to join in a future close.

Founded in 2009, Skeleton Technologies says it is the world’s largest manufacturer of supercapacitors for mission-critical infrastructure and industrial applications. Its energy storage systems are based on patented Curved Graphene and supercapacitor technology, used in AI infrastructure, grid stability, defence, and space applications.

The company plans to use the funding to meet growing demand for high-power energy storage solutions in AI data centres. Alongside its manufacturing operations in Germany and a one-gigawatt SuperBattery factory in Finland, Skeleton is also preparing to expand production into the United States.

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Skeleton says its flagship GrapheneGPU solution reduces energy consumption by 40% while increasing computing power by 40% in high-density AI computing environments.

The company also highlights that its technologies avoid reliance on scarce raw materials such as lithium, cobalt, and nickel, reducing supply chain risks.

According to the company, it now operates the largest engineering and R&D teams in the high-power energy storage sector.

Taavi Madiberk, CEO and co-founder of Skeleton Technologies, said, “As AI infrastructure continues to scale, reliable, high-performance power solutions have become critical. This funding round brings additional strategic partners to the table and strengthens our ability to deliver the next generation of power solutions that cut AI data centre energy consumption by 40%, increase computing power by 40%, and enable faster power grid connection.”

“We are pleased to strengthen our investor base with new partners such as Axon, whose technology investment and growth-stage expertise will support Skeleton’s IPO preparations. Through Taiwania Capital, we are also deepening our relationship with the Taiwanese chip industry, creating more strategic opportunities as demand from AI data centres continues to grow.”