Investment Managers
FRAUD ALERT - VIGILANCE REQUESTED
The Sienna Investment Managers Group would like to draw your attention to the risk of identity usurpation by fraudsters inciting individual investors to invest in fraudulent financial investments. The companies of the Sienna Investment Managers Group do not approach individual investors directly and therefore we ask you to exercise the utmost vigilance by not responding to any investment solicitations via e-mail, telephone calls or social networking/instant messaging. If you have made a payment to a scammer, contact your bank immediately to block the transfer or request the return of the funds paid. You can report these practices via the government website: www.internet-signalement.gouv.fr
Sienna Investment Managers is a multiple-expertise pan-European asset manager of the publicly traded investment holding company GBL. Spanning listed and private assets, Sienna IM builds bespoke and innovative solutions for its clients, with purpose.
Sienna Investment Managers seeks to challenge the status quo and change mindsets with the firm belief that today’s investments shape the communities of tomorrow. While we naturally strive for performance, we are also committed to priviledge investments that have a positive impact. In the current environment, investors are looking for more than results: their asset managers must commit to making a difference, while anticipating, analysing, and managing risk in a judicious and agile manner.
Our clients benefit from all of the experience and knowledge of the private markets that Sienna Investment Managers’ investment professionals have accumulated over many years within the GBL group.
Sienna Investment Managers is recognized for its expertise and commitment to responsible investment. As a signatory of the PRI, we have received several awars for our capacity for innovation : Innovation Award at the Pyramides de la Gestion de Patrimoine 2025, AGEFI Innovation Award, inclusion in the list of “50 management companies that matter“, “High Profile” ranking in the Senior Debt category by Décideurs Magazine, and the Silver Trophy for Employee Savings. All if these are proof of the quality and performance of our investment solutions.
Starting with a project initiated in 2013, Sienna Investment Managers is currently managing over €40 billion of asset value.
The group counts around 300 employees, with men and women in almost equal numbers and over 20 nationalities being represented.
Thanks to the track record it has built and with the backing of the GBL group, Sienna Investment Managers’ ambition is to become a European leader in third-party asset management.
Sienna Investment Managers employs around 300 people organised into specialised investment teams and corporate functions.
Discover our brochure by clicking here.