Skeleton Technologies

Energy Storage · AI Infrastructure · Data Centers

Funding

Skeleton Technologies tops $1B valuation after Siemens-led investment

Its graphene supercapacitors aim to smooth GPU power swings that waste up to 40% of data-center energy.

• Skeleton Technologies secured a strategic investment led by Siemens that pushed its valuation above $1 billion, closing in October as a nine-figure round.
• The Tallinn-based company makes proprietary curved-graphene supercapacitors paired with power electronics that smooth rapid electricity swings for AI server clusters.
• In return, Siemens gets exclusive rights to sell Skeleton's high-power energy-storage systems to data-center customers, according to Siemens tech chief Peter Koerte.
• Skeleton plans to spend more than $200 million scaling US operations, including building a domestic cell-manufacturing plant and R&D in Silicon Valley.
• The partnership builds on an existing tie: Siemens Digital Industries designed and automated Skeleton's €220 million SuperFactory near Leipzig, Germany.
• Bloomberg reported in March that Skeleton is aiming for a US stock market listing next year.
• As AI data centers strain power grids with millisecond-scale load swings, energy-storage hardware is becoming as critical to compute performance as the chips themselves.