Diederik Klijn

Diederik Klijn is an experienced sales professional with a strong background in cybersecurity and technology, currently serving as the Sales Director for Benelux & Nordics at Halcyon since August 2025. Prior roles include Channel Account Manager at Qualys, Regional Sales Manager at Synack, and SASE Specialist for Northern Europe at Palo Alto Networks. Diederik has a proven track record of driving sales growth and managing channel relationships across numerous organizations, including Venafi, Avi Networks, Zscaler, and Finjan. Diederik began as a Security Consultant at Ubizen and Kender Thijssen, gaining substantial expertise in security architecture and implementation. Diederik holds a degree in Business Science from Saxion University of Applied Sciences.