Skeleton Technologies, a Tallinn-based AI infrastructure and grid power systems provider, today announced the first close of a larger funding round at €33 million. This brings its total venture capital funding to €392 million in preparation for its planned initial public offering (IPO) in the United States in 2027.
The new round expands Skeleton’s investor base with the addition of Axon Partners Group, SmartCap, and Taiwania Capital. More investors will be announced as part of a larger round ahead of the IPO.
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.”
Founded in 2009, Skeleton Technologies claims to be the world’s largest manufacturer of supercapacitors for mission-critical infrastructure and industry. The company’s energy storage systems are built on Skeleton’s patented Curved Graphene and supercapacitor technology, supporting AI and grid stability, frontline defence, space exploration, and more. The company’s core technology is protected through 70 patent families
“Taiwan acts as the global hub for the AI data centre supply chain, while Europe is a powerhouse of deep-tech innovation. We view Skeleton’s technology as a critical solution for enabling the next generation of AI infrastructure. By backing Skeleton Technologies, we are connecting their breakthrough energy solutions with Taiwan’s robust AI data centre supply chain. Together, we are building the resilient energy backbone needed to unlock the full potential of the AI era,” said David Weng, CEO at Taiwania Capital.
According to the company, the new funding will further enable Skeleton to meet the demand for its high-power energy storage solutions that address power constraints within AI data centres. In addition to its mass-scale supercapacitor manufacturing in Germany and one-gigawatt SuperBattery factory in Finland, Skeleton is preparing to expand production to the United States.
“While the US, with its large hyperscalers, is the leader in AI globally, our solutions are being delivered to AI data centre customers in Europe and Asia, as well. The power bottleneck is limiting growth across the entire AI market, driving the accelerated demand for our solutions, and the backing of our strong investor base is essential in supporting our fast growth,” Madiberk says.
According to Skeleton, its solutions enable AI data centres to operate with higher reliability, improved energy efficiency, and greater independence from grid constraints.
As AI workloads become more power-intensive, infrastructure efficiency is emerging as the key competitive factor in AI deployment. Skeleton’s flagship solution, GrapheneGPU, was designed for high-density AI computing environments and reduces energy consumption by 40% while increasing computing power by 40%.
Skeleton’s solutions are built on trusted European and transatlantic supply chains and do not rely on lithium, cobalt, nickel, or other scarce critical raw materials, limiting strategic dependency risks, says the company.
Skeleton claims that it now has the largest engineering team and the largest R&D team in the high-power energy storage sector.
Read the orginal article: https://www.eu-startups.com/2026/05/tallinns-skeleton-technologies-announces-e33-million-first-close-of-pre-ipo-round-ahead-of-planned-2027-us-ipo/
