Investor profile
Altor has backed 4 European tech companies across 7 funding rounds between 2022 and 2025, joining rounds totalling €1.9B. Most active in Energy and Cleantech. Data as of 6 Aug 2026.
Also recorded as: Altor Partner
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| Company | Country | Rounds | Total € |
|---|---|---|---|
| Stegra (H2 Green Steel) | Sweden | 2 | €1.6B |
| Aira | Sweden | 3 | €299M |
| Atobi | Denmark | 1 | €3.8M |
| Silo.AI | Finland | 1 | €0 |
| Company | Stage | Amount | Date |
|---|---|---|---|
| Stegra (H2 Green Steel) | Other | €1.5B | 2023-09 |
| Aira | Other | €150M | 2025-08 |
| Aira | Other | €86M | 2023-10 |
| Stegra (H2 Green Steel) |
| Series B |
| €70M |
| 2022-10 |
| Aira | Other | €63M | 2024-10 |
| Atobi | Other | €3.8M | 2023-07 |
