Skeleton Technologies

Curved Graphene supercapacitors and high-power systems for AI data centres, grid and transport

skeletontech.com

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About

Skeleton Technologies makes supercapacitors, SuperBattery cells and complete high-power systems built on its proprietary Curved Graphene material, serving AI data centres, grid, automotive, heavy transport, rail, marine and defence customers. For AI data centres its systems smooth the millisecond power swings of GPU clusters close to the workload. Founded in 2009 in Tartu, Estonia, it runs module and system development in Tallinn, material and cell production in Germany (including its Leipzig SuperFactory) and a SuperBattery factory in Varkaus, Finland, and says it has raised almost €400M. In October 2026 it announced a strategic investment led by Siemens that took its valuation above $1B, to expand US manufacturing and Silicon Valley R&D. CEO: Taavi Madiberk.

Stage
growth
Founded
2009
Location
Estonia
Added via
web
Ownership
unclaimed

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Products

  • GrapheneGPU — Plug-and-play peak power shaving for AI data centres that removes GPU dummy loads · Hardware
  • SkelCap Supercapacitors — Large D60-format supercapacitor cells with very low internal resistance and high power · Hardware
  • Skeleton SuperBattery — Graphene-based battery that charges in under 90 seconds with 50,000 cycles and no thermal runaway · Hardware

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