Sienna Investment Managers

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Sienna Investment Managers — overview

Type

Fund Manager

Location

Paris France

Alternative Asset Class

INFNRPDRE

Established

1990

Firm Ownership

Independent Firm

Investment Team Staff

Total Staff

150

About

Sienna Investment Managers is a multi-expertise pan-European asset manager of the publicly traded investment holding company Groupe Bruxelles Lambert (GBL). With a team of around 300 professionals, Sienna Investment Managers operates in Paris, Luxembourg, Milan, London, Hamburg, Frankfurt, Madrid, Amsterdam and Seoul. Spanning listed and private assets, Sienna Investment Managers builds bespoke and innovative solutions for its clients, with purpose. As of end of September 2025, the Group oversees more than €40 billion under management, of which over 80% (AuM eligible under SFDR perimeter) are classified article 8 or 9. As of February 2026, ATLAND announced that it has entered into an agreement with the shareholder of Sienna Real Estate, Groupe Bruxelles Lambert (GBL), for the acquisition of 100% of its share capital.
Asset ClassNo. of Funds Currently ManagedFunds Raised in the last 10 yearsEst. Dry PowderStrategies
Private Equity-Buyout,Early Stage,Early Stage: Seed,Expansion / Late Stage,Growth,Venture (General)
Private Debt23Direct Lending,Infrastructure Debt,Real Estate Debt
Real Estate5Core,Core-Plus,Debt,Opportunistic,Value Added
Infrastructure7Infrastructure Debt,Buyout,Co-Investment,Complex Situation,Early Stage,Early Stage: Seed,Early Stage: Start-up,Expansion / Late Stage,Fund of Funds,Hybrid,Infrastructure,Natural Resources,Special Situations,Venture (General)
Natural Resources3Energy
Asset ClassNo. of Funds Currently ManagedAuMDate of AuMStrategies
Hedge Funds--

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Sienna Investment Managers - known decision makers (39)

Contact NamePositionLocationEmailTelephoneAsset Class
Deputy Managing Director, Chief Revenue Officer & Chief Operating Officer, Private CreditParis, FrancePE
Chief Investment Officer - Private CreditParis, FrancePE
Chief Investment Officer, Listed AssetsParis, FrancePD
Chief Operating OfficerParis, FrancePE
Chief Operating Officer, Private Credit, Director of OperationsParis, FrancePE

Showing 5 of 39 known decision makers Sienna Investment Managers

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Sienna Investment Managers - private capital funds managed (28)

Fund NameVintageStrategyStatusFund StructureClosed Size (MN)Target Size (MN)Primary Region Focus
Direct LendingRaisingCommingledEurope
Direct LendingFirst CloseCommingledEurope
Direct LendingFirst CloseCommingledEurope
Infrastructure DebtFirst CloseCommingledEurope
Direct LendingClosedCommingledEurope

Showing 5 of 28 private capital fund managed by Sienna Investment Managers

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Sienna Investment Managers - known investors (4)

InvestorNumber of FundsTypeCityCountryAsset Class
1Insurance CompanyStrasbourgFrancePD
1BankLuxembourgLuxembourgINFPDNR
1Insurance CompanyNiortFrancePD
1Insurance CompanyParisFrancePD

Showing 4 of 4 known investors Sienna Investment Managers

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