Sonnen
Intelligent lithium based batteries
Total raised
€68M
€67,500,000
Funding rounds
4
Investors
5
distinct backers
Active since
2014-11
latest 2018-01
Funding by year
EUR raised per yearSignals
Medium confidenceRaise-next likelihood24
base rate 53% for Series D+
- ▼ Dormant (no round in 3+ cohort gaps)
- ▲ Up-round momentum
Exit likelihood22
base rate 12% (2+ rounds)
- ▲ 4 rounds raised
- ▲ €30M+ raised
- ▲ 16y since founding
Timing: dormant vs cohort gap · momentum up. Funding-only estimates, not predictions and not investment advice — see signals.
Funding rounds
4 rounds| Date | Stage | Amount | Investors | |
|---|---|---|---|---|
| 2018-02-01 | Series D+ | €60M | — | View deal → |
| 2016-06-01 | Growth/Late | €0 | GE Ventures | View deal → |
| 2015-09-01 | Growth/Late | €0 | Inven Capital | View deal → |
| 2014-12-01 | Series C | €7.5M | Capital Invest,Chrysalix SET,Munich Venture Partners | View deal → |
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