Sienna IM to acquire a minority interest in Eight Advisory

Sienna Investment Managers (“Sienna IM”), through its newly-created subsidiary dedicated to private equity (“Sienna Private Equity”), and Eight Advisory, a leading independent financial and operations consulting firm, are pleased to announce the acquisition of a minority interest of Sienna IM in Eight Advisory.

Eight Advisory is a leading independent financial and operations consulting firm specialized in transaction, restructuring, transformation and financial engineering. Since its founding in 2009, Eight Advisory has experienced continuous growth of +21% per annum on average. The quality, seniority and commitment of its teams together with its clients have forged the firm’s solid reputation, which is now indisputable in the European financial advisory market. The company has 650 employees including 76 partners who operate in more than 30 countries. Its leading position in France in financial due diligence and restructuring consulting and as a major player in business transformation make it the European leader of independent consulting firms, and its objective is to double in size within five years.

Sienna IM will rely on its vast European and global network to support Eight Advisory’s growth plan and the strengthening of its organizational structure. Eight Advisory will also be able to rely on the intimate knowledge Sienna IM has forged on its various businesses to lead the extension of its range of services, in particular toward strategy consulting.

Eight Advisory, majority owned by its partners, will retain the structure and independence that made its success. The operational governance of the group, led by Pascal Raidron and Eric Demuyt, will remain unchanged.

Pascal Raidron, President of Eight Advisory: “Eight Advisory’s new shareholder Sienna will allow us to accelerate our international expansion by providing us with significant financial resources while maintaining our independence.”
Ian Gallienne, CEO of GBL and Chairman of Sienna: “We are pleased that the investment of Sienna Private Equity, which is hereby closing its first transaction, will help accelerate the ambitious growth plan designed by Eight Advisory management team.”

Philippe Renauld, COO of Sienna IM: “Since its founding, Eight Advisory has become a European reference in financial consulting. The robustness of Eight Advisory’s business model makes it possible to confidently envision its future and the internationalization of its business.”

Vincent Catherine and Hugo d’Avout, founding partners of Sienna Private Equity: “We look forward to partnering with a recognized and talented team that we have known for a long time to support them in their multiple avenues of development for the years to come.”


About Eight Advisory
Eight Advisory is an independent financial and operations consulting firm specialized in Transaction, Restructuring, Transformation and Financial Engineering.
The firm provides decision-making support to senior management, shareholders, banks and potential investors. Eight Advisory works with business entities of all sizes: family-owned firms, medium-sized companies, CAC 40 groups and multinationals, etc. With more than 650 employees, including over 76 partners, and an extensive international network, Eight Advisory is a leading firm recognized for the full-on commitment of its partners, the seniority and competence of its teams and the high standard of its work.

About Sienna
Sienna is the alternative investment platform of the publicly traded investment company GBL (“Groupe Bruxelles Lambert”). With 260 professionals, Sienna is present in Luxembourg, London, Paris, Hamburg, Madrid, Amsterdam, and Seoul. With extensive experience in asset management, Sienna now invests on behalf of third parties. Sienna now oversees over €30.2 billion as of March 31, 2022 on behalf of its shareholder GBL as well as institutional clients, mainly through real estate assets (Sienna Real Estate), private debt (Sienna Private Credit), investments in private and public market funds (Sienna Gestion) as well as through direct equity investments in unlisted companies (Sienna Private Equity and Sienna Venture Capital).

About Sienna Private Equity
Sienna Private Equity is the subsidiary of Sienna Investment Managers dedicated to private equity investments, founded by Vincent Catherine and Hugo d’Avout. The Sienna Private Equity team is composed of six investment professionals. Today based in Paris, Sienna Private Equity has the ambition to open offices in key European markets, notably in Germany and Italy. Sienna Private Equity aims to invest between €30 million and €75 million per operation, and up to €150 million in co-investment opportunities. Sienna Private Equity will target mid-sized European businesses, focusing on media, real estate, healthcare and business services.

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