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Grégoire Pennone

From Alfawiki
Adapted from the English Wikipedia article Grégoire Pennone, available under CC BY-SA 4.0Updated 11 August 2025
Grégoire Pennone
Born1975
Switzerland
Occupation(s)Executive, private banking professional
Known forPrincipal shareholder and CEO of ONE Swiss Bank

Grégoire Pennone (born 1975) is a Swiss executive and private banking professional, holding the positions of principal shareholder and Chief Executive Officer at ONE Swiss Bank.

Education

Pennone obtained a Bachelor of Laws degree from the University of Geneva in 1998. He pursued further studies at the NYU School of Continuing Education in 1999 and later earned an MBA from the University of Geneva in 2007.

Business career

In 2015, Pennone took over as CEO from his father Robert, who co-founded One Swiss Bank. Before assuming this role, he worked as an executive at Banque Bénédict Hentsch & Cie. Subsequently, he returned to GS Banque—now known as ONE Swiss Bank—to oversee day-to-day management.

During his tenure, ONE Swiss Bank embraced a more entrepreneurial strategy within private banking wealth management. Pennone led significant mergers, including those with Banca Arner and Banque Profil de Gestion, thereby strengthening the bank’s market position and defining its current organizational framework.

Other Roles

Beyond his responsibilities at ONE Swiss Bank, Grégoire holds board memberships and provides financial advisory services to multiple companies. He previously served on the board of Laclinic Montreux and presently acts as Director at Oxial as well as Corporate Governance Advisor at M&BD Consulting.

Additionally, he has substantial experience in event management, having established the Geneva Marathon in 2003. The first marathon occurred in 2005, with Pennone presiding over the organizing committee until 2010.

Recognition

In 2019, the Swiss finance publication Bilan referred to Grégoire and his father Robert as "The Expert and The Manager," emphasizing their contributions to GS Banque's swift development and expansion.

Grégoire was honored in 2022 with the CEO of the Year Switzerland award by CEO Today Magazine, acknowledging his visionary leadership and entrepreneurial spirit. This distinction celebrates innovative CEOs and business leaders throughout Europe.