Jeffrey Antoni

Jeffrey Antoni is an experienced professional currently serving as a Territory Manager at Tenable since November 2025. Prior to this role, Jeffrey held various positions in the cybersecurity sector, including Portfolio Manager Cyber Security at IBM from May 2019 to September 2021, where responsibilities included advising enterprise customers on IBM's cybersecurity solutions. As an Enterprise Customer Development Manager at Mimecast from September 2021 to November 2025, Jeffrey managed relationships with enterprise clients in Northern Europe, focusing on email security SaaS services. Earlier roles included Portfolio Sales Security at Sogeti Nederland, and a Security Consultant position at Arrows Group Global. Jeffrey began the career as a trainee at Ahold and worked as a 2Contact Agent. Jeffrey holds a Bachelor of Business Administration (B.B.A.) degree from The Hague University of Applied Sciences.