Ian Gallienne is a French entrepreneur and businessperson who founded Ergon Capital Advisors SA, Ergon Capital Partners SA and Sienna Capital SARL and who has been at the helm of 7 different companies.

He occupies the position of Chairman for Sienna Capital SARL, Managing Director at Groupe Bruxelles Lambert SA (Investment Company) and Chief Executive Officer & Director at Groupe Bruxelles Lambert SA. Ian Gallienne is also Manager for Serena 2017 Sc and on the board of 9 other companies.

In his past career he was Manager for Rhone Group LLP, Chief Executive Officer for Ergon Capital Partners SA, Managing Director at Ergon Capital Advisors SA, Managing Director at Ergon Capital II SARL, Managing Director at Egerton SARL and Manager at Rhône Capital LLC.

He received an MBA from INSEAD and an undergraduate degree from Ecole Supérieure des Dirigeant d'Entreprise.