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

January 24, 2023

Sienna Private Credit grants its first financing dedicated to the MaPrimeRénov plan and finances the Rénolib company

Sienna Private Credit finances Rénolib, a specialist in the energy renovation of buildings, which assists professionals in obtaining Energy [...]

January 16, 2023

Sienna Investment Managers appoints Floris Van Maanen as new CEO of Sienna Real Estate

Sienna Investment Managers ("Sienna IM"), GBL's alternative investment platform, has appointed Floris Van Maanen as the new CEO of Sienna Real [...]

January 10, 2023

Sienna Real Estate advises Amundi Asset Management on the acquisition of an iconic newly constructed office building in Madbit district, Madrid

Sienna Real Estate advises Amundi Asset Management on the acquisition of A546, a new multi-tenant office building in the Madbit office market, [...]

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