Develops graphene-enhanced supercapacitor energy storage systems for AI data centres and grid infrastructure.
| Date | Round | Amount |
|---|---|---|
| May 2026 | Incoming IPO Skeleton Technologies (Estonia/Germany) closed the first tranche of its pre-IPO round at 33M euros, with new investors including Axon Partners and Taiwania, ahead of a US IPO in 2027. | $38.3M |
| Oct 2023 | Funding round Estonian energy-tech Skeleton Technologies raised EUR108M led by Siemens Financial Services, Marubeni and CBMM for its supercapacitor factory. | $115M |
| Oct 2023 | Growth Tallinn-based Skeleton Technologies raised 108M EUR with Siemens Financial Services and Marubeni to scale supercapacitor and SuperBattery production. | $116.6M |
| Jun 2023 | Funding round Estonian ultracapacitor maker Skeleton Technologies secured undisclosed fresh funding from strategic partner Marubeni Corporation to build a SuperBattery mass-production factory. | — |
| Jan 2022 | Series D Plus Tallinn supercapacitor company Skeleton Technologies raised a EUR37.6M Round D3 led by Taavet Hinrikus. | $37.6M |
| Jul 2021 | Series D Plus Estonian/German ultracapacitor maker Skeleton Technologies closed a further EUR29M in its Series D, taking the round to EUR70.4M. | $29M |
| Nov 2020 | Series D Plus Estonian ultracapacitor maker Skeleton Technologies raised a EUR41.3M Series D round led by new and existing investors including EIT InnoEnergy. | $41.3M |