Investing in change

Sienna Investment Managers aims to challenge the status quo by developing innovative investment solutions designed to have a positive impact on the major social and environmental challenges we face.

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With more than €30 billion under management (as of March 2022), Sienna Investment Managers provides support to companies and individuals that want to see a sustainable and inclusive economy.

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About us

Sienna Investment Managers is the alternative investment platform of the publicly traded investment holding company GBL (Groupe Bruxelles Lambert), with offices in Luxembourg, London, Paris, Hamburg, Madrid, Amsterdam, Zurich and Seoul.

Our teams have a proven track record in impact investment and offer a broad spectrum of products. Sienna Investment Managers has five expertise: private credit, private equity, venture capital, listed and thematic asset management and real estate.

Expertise

ESG

At Sienna Investment Managers, ESG issues are incorporated across our investment solutions and we are proud to promote projects that have a positive impact.

Solar Panel Park

News

March 7, 2023

Sienna Private Credit reaches 2 GW milestone financing renewable energy power plants across Europe

Through 2022, Sienna Private Credit cemented its position in the European renewable energy market, having successfully provided financing for [...]

February 22, 2023

Sienna Investment Managers accelerates its digitalization strategy and integrates blockchain by listing its first funds on the IZNES platform

Sienna Investment Managers has referenced its Sienna Gestion funds, Sienna Monétaire ISR and Sienna Court Terme ISR , on the IZNES platform and [...]

February 20, 2023

Private debt: the ideal complement to bonds in times of stagflation

Structurally composed of mostly unsecured fixed-rate securities, the bond markets do not offer the same protection as secured private debt, [...]

Contact us

Paris

18, rue de Courcelles

75008 Paris

+33 1 83 75 72 42

Luxembourg

Immeuble SERENITY

19-21 route d’Arlon

L-8009 Strassen

+352 27 21 22

London

Sienna Capital London Limited is an Appointed Representative of Mirabella Advisors LLP, which is authorised and regulated by the Financial Conduct Authority number 606792

7th Floor, Berkeley Square House

W1J 6BE London

+44 2 07 92 74 060