DSEI 2027
DSEI 2027 — Defence and Security Equipment International
Major international defense and security exhibition, held at ExCeL London.
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About DSEI 2027
DSEI 2027, Defence and Security Equipment International, runs September 7–10, 2027 at ExCeL London. The exhibition draws roughly 45,000 attendees from defense ministries, prime contractors and systems integrators.
Who should attend
Attendees include European and allied defense ministries, defense primes, and C4ISR and defense AI integrators.
Why it matters
Defense AI and ISR programs across NATO countries are driving sovereign and air-gapped infrastructure buildouts with strict data residency and disconnected-operation requirements. The exhibition is a primary point of contact between those programs and the technology suppliers serving them.