Denis O'Sullivan

Denis O'Sullivan is an accomplished financial professional with extensive experience in various leadership roles within the finance sector. Currently serving as Group Financial & Treasury Controller and Group Head of Finance at Keywords Studios since September 2018, Denis has played a significant role in supporting the growth of the leading international technical services provider for the video games industry. Previously, Denis held the position of Group Financial Controller at Digiweb & Viatel Group, contributing to the success of Ireland’s leading independent telecommunications company. Other notable positions include Managing Director and Group CFO at Populis, CFO at Brinks Inc., and European Finance Director at National Instruments, where significant achievements included business turnaround and strategic planning. Denis began the career at Ernst & Young as an Audit Senior, backed by a strong educational foundation with a Bachelor of Commerce from University of Galway and a Diploma in International Financial Reporting Standards from Chartered Accountants Ireland.