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.

Scroll

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.

Business Meeting

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

November 23, 2022

Henry Timmis and Chris Rees appointed co‐Managing Directors of Sienna Real Estate UK

Henry recently joined following 11 years in the Savills Central London Investment team and has advised on over 70 transactions totaling in [...]

November 10, 2022

Sienna Private Credit provides junior financing to Italian renewables player

The junior financing is backed by photovoltaic assets developed, operated and owned by Infastrutture, a solar and wind Italian developer. This [...]

October 28, 2022

The appointment of Viktor Speckinger as Head of Sienna Multi-Manager Private Equity

Sienna Investment Managers ("Sienna IM"), GBL's alternative investment platform, announces the appointment of Viktor Speckinger as managing [...]

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