1s1 Energy is catalyzing the adoption of renewable hydrogen within this decade.
1s1 Energy has raised €3.4M across 2 funding rounds from 11 investors, most recently a Seed round in Oct 2024. Based in Lisbon, Portugal; active in Energy. Data as of 7 Aug 2026.
Timing: in window vs cohort gap · momentum down. Funding-only estimates, not predictions and not investment advice — see signals.
| Date | Stage |
|---|
| Amount |
|---|
| Investors |
|---|
| 2024-10-15 | Seed | €1.3M | Asiri LLC,City Light,Faber Ventures,Gibson Lane GmbH,Rumbo Ventures | View deal → |
| 2022-11-10 | Other | €2.2M | Aquarius Capital,Asiri,CSN Inova,Ecoa Capital,Faber,Gibson Lane | View deal → |
