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Sienna Investment Managers

Sienna Investment Managers

Overview

Sienna Investment Managers is a pan-European asset manager and the alternative investment platform of the publicly traded investment holding company Groupe Bruxelles Lambert (GBL), focusing on private equity, private credit, real estate, and listed assets.

Year Founded

2013

Portfolio Companies

14

Investments

Sienna Investment Managers investments
CompanyDateStageLead
Xsight LabsJul 2026Early FundingCo-investor
AriaJul 2026DebtCo-investor
KarmenJan 2026DebtLead
Keon GroupMay 2025DebtCo-investor
GreenPodsMar 2025DebtLead

Sector & Stage Mix

Industry, funding stage, and valuation band breakdowns.

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SeedSeries ASeries BGrowth

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Investment Activity

Yearly cadence, pace, and funding raised over time.

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2021
2022
2023
2024
2025
2026

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FAQ

Firmographic Details

HeadquartersStrassen
Year Founded2013

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