DSEI
Excel - London
September 9, 2025 - September 12, 2025
Defence and Security Equipment International or DSEI is the world’s largest land, sea and air biennial defence and security exhibition, bringing together senior international trade and military experts from across the entire supply chain. L3Harris has been proudly serving customers in the UK for over 100 years, delivering unique capabilities across land, air, sea, space and cyber. From our 15 U.K. sites we deliver airborne systems, commercial pilot training, tactical cyber and electronic warfare, secure communications, expanded autonomous EOD systems, air surveillance and defence, warship monitoring and control systems, cyber intelligence operations and autonomous surface vehicle technology.
39.5K
Exhibition Space (Sq. M)
1700+
Exhibitors
77K+
Total Attendees
130+
Official Delegations
400+
Speakers
3000+
Global VIPs
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