Developer and manufacturer of high energy and power density ultracapacitators
Skeleton Technologies has raised €384M across 14 funding rounds from 20 investors, most recently a round in May 2026. Based in Tartu, Estonia; founded 2009; active in Cleantech and Energy. Data as of 6 Aug 2026.
Timing: too soon vs cohort gap · momentum down. Funding-only estimates, not predictions and not investment advice — see signals.
| Date | Stage | Amount | Investors | |
|---|---|---|---|---|
| 2026-05-07 | Other | €33M | Axon Partners Group,SmartCap,Taiwania Capital | View deal → |
| 2023-11-29 | Other | — | Siena Secondary Fund | View deal → |
| 2023-10-13 | Debt | €108M | Marubeni Corporation,Other investors,Siemens Financial Services (SFS) | View deal → |
| 2023-07-12 | Other | — | Marubeni Corporation | View deal → |
| 2023-03-06 | Other | €51M | German Government,the state of Saxony | View deal → |
| 2022-01-28 | Series D+ | €38M | Bengt Wahlqvist,EIT InnoEnergy,Nidoco AB,Taavet Hinrikus | View deal → |
| 2021-07-01 | Series D+ | €29M | Harju Elekter,Marubeni Corporation,MM Grupp | View deal → |
| 2021-03-12 | Other | €51M | — | View deal → |
| 2020-11-03 | Series D+ | €41M | — | View deal → |
| 2016-08-01 | Series C | €13M | Firstfloor Capital,Harju Elekter Group | View deal → |
| 2016-01-01 | Other | €4.0M | KIC InnoEnergy | View deal → |
| 2015-06-01 | Series B | €9.8M | Harju Elekter,KIC InnoEnergy,UP Invest | View deal → |
| 2014-07-01 | Series A | €3.9M | Upi.ee | View deal → |
| 2013-04-01 | Early VC | €2.2M | — | View deal → |
