Sienna Investment Managers
Investor profile
Investment firm
Sienna Investment Managers has backed 2 European tech companies across 2 funding rounds between 2021 and 2025, joining rounds totalling €55M. Most active in Fintech and Cleantech. Data as of 4 Nov 2026.
Deals
2
distinct rounds
Companies
2
backed
Active span
2021–2025
5 yrs
Total round €
€55M
sum of rounds joined
Deals by year
distinct rounds / yearSienna Investment Managers — deals by year — interactive chart.
Data table
| Sienna Investment Managers — deals by year | |
|---|---|
| 2021 | 1 |
| 2025 | 1 |
Top sectors
by dealsSienna Investment Managers — top sectors — interactive chart.
Data table
| Sienna Investment Managers — top sectors | |
|---|---|
| Fintech | 2 |
| Cleantech | 1 |
Stages
by dealsSienna Investment Managers — stages — interactive chart.
Data table
| Sienna Investment Managers — stages | |
|---|---|
| Debt | 1 |
| Series A | 1 |
Countries
by dealsSienna Investment Managers — countries — interactive chart.
Data table
| Sienna Investment Managers — countries | |
|---|---|
| France | 2 |
Co-investment network
shared roundsCo-investment network — interactive chart.
Hover a node for shared-deal counts; click a co-investor to open its profile.
Best viewed on a larger screen.
Frequent co-investors
shared roundsPortfolio
top 30 by total round €| Company | Country | Rounds | Total € |
|---|---|---|---|
| Hero | France | 1 | €50M |
| Iceberg Data Lab | France | 1 | €5.0M |
Biggest deals
top 10 by amount| Company | Stage | Amount | Date |
|---|---|---|---|
| Hero | Debt | €50M | 2025-02 |
| Iceberg Data Lab | Series A | €5.0M | 2021-09 |