Sienna Investment Managers

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 IM operates in Paris, Luxembourg, London, Hamburg, Frankfurt, Madrid, Amsterdam and Seoul.

Spanning listed and private assets, Sienna IM builds bespoke and innovative solutions for its clients, with purpose. As of end of December 2023, the Group oversees €34 billion under management, of which over 80% (AuM eligible under SFDR perimeter) are classified article 8 or 9.

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