Solarstone
Solarstone is a Solar energy services.
Solarstone has raised €10M across 2 funding rounds from 2 investors, most recently a Series A round in Jul 2022. Based in Viljandi, Estonia; founded 2015; active in Cleantech. Data as of 4 Nov 2026.
Total raised
€10M
€10,000,000
Funding rounds
2
Investors
2
distinct backers
Active since
2019-10
latest 2022-07
Funding by year
EUR raised per yearSolarstone — funding by year — interactive chart.
Data table
| Solarstone — funding by year | |
|---|---|
| 2019 | €0 |
| 2022 | €10M |
Signals
Medium confidenceRaise-next likelihood8
base rate 44% for Series A
- ▼ Past typical raise window
- ▼ Low backer re-investment
Exit likelihood8
base rate 11% (2+ rounds)
- ▲ 11y since founding (typical exit age)
- ▼ No recent equity round (debt-only or quiet)
Timing: overdue vs cohort gap · momentum unknown. Funding-only estimates, not predictions and not investment advice — see signals.
Funding rounds
2 rounds| Date | Stage | Amount | Investors | |
|---|---|---|---|---|
| 2022-07-20 | Series A | €10M | Biofuel OÜ | View deal → |
| 2019-10-01 | Other | — | Sunly | View deal → |
Investors
2Related news
- Estonian roofing startup Solarstone grabs €10 milliontech.eu · 2022-07
- eu-startups.com
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