Overview
DSEI 2025 is the UK’s flagship defence event and a pivotal platform for the global defence industry. Hosted at Excel London, DSEI convenes the world’s leading defence organisations, senior military and government officials, financial institutions, and leading technology players.
The event showcases cutting-edge capabilities across key domains including air, land, naval, security, space, and cyber — bringing together buyers, suppliers, policymakers, and innovators to shape the future of defence and security. The 2025 edition is expected to draw more than 35,000 attendees and 1,500 exhibitors from over 50 countries.
Oliver Wyman’s delegation will be on the ground throughout DSEI, meeting clients, participating in key discussions, and hosting an invitation-only Defence Investment Summit to help catalyse collaboration across industry, finance, and government.
Learn more about the event, here.
Session
September 10, 1:00 p.m.—5:30 p.m. BST
Defence Investment Summit
This invitation-only summit convenes senior executives from defence, finance, and government. Delivered in partnership with CBI, ADS, and PA Consulting, and supported by the UK Government, the summit will be staged within the DSEI trade show at Excel London.
The agenda will feature high‑profile panels exploring how to accelerate capability, unlock private capital, and strengthen the UK and allied defence industrial base. Core themes include mobilising investment across priority programmes, building resilient supply chains, advancing procurement and commercial models, and deepening collaboration between government, industry, and investors.
The summit builds on the momentum of the Defence and Economic Growth Taskforce, with a focus on practical pathways to scale innovation, and deliver faster, more secure outcomes for national security and economic growth.
Note: Invitation-only for senior leaders in defence, finance, government. To request an invitation, or to arrange a meeting during DSEI, contact our team.
Meet The Team
