John O'Hara

John O'Hara is a seasoned finance professional with extensive experience in leadership roles across various industries. Currently serving as Chief Financial Officer at SEALSQ since January 2024, O'Hara was previously the International Financial Controller at Wisekey International Holding AG, where key achievements included leading a subsidiary's spin-off and the implementation of enhanced financial policies. O'Hara's background includes robust financial management positions at Jesuit Worldwide Learning, Deloitte UK, Marsh & McLennan Companies, Yum! Restaurants International, Chelsea Football Club, and Grant Thornton, with a proven track record in financial operations, compliance, and team leadership. O'Hara holds a BA Hons in Economics from Durham University.