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12 - 15 September 2023

Excel - London

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Why Visit?


Why Visit?

Access the Global Market

The defence industry was re-united in full force for the first time in 18 months at DSEI in September 2021 - and nothing beats meeting face-to-face, making connections and talking through business projects.

DSEI and DSEI Connect 21 showcased over 1,000 defence and security suppliers – including all the major prime manufacturers plus more than 100 new exhibitors. The event also hosted daily showcases and demos plus an unparalleled content programme featuring keynote addresses from top defence officials and military figureheads and eight seminar theatres featuring MOD-led content.

MOD Keynote Speakers


Our keynote programme features the top Defence officials from the UK Government and Forces, alongside some of their key international partners.


See the keynotes

Defence Engagement Forums


Each of the eight forum theatres (Aerospace, Land, Naval, Security & Joint) features keynotes, case studies, panel discussions and interviews covering timely and relevant sector-focused content.


View the full agenda

World Class International Exhibitors  


Meet exhibitors from the entire defence and security supply chain, including all the major Primes/OEMs through to Tier 3 manufacturers and innovative SMEs. Plus visit the 19 international pavilions.


Browse our exhibitor list

DSEI 2021 is different. It’s both a live event in London AND a virtual event

We are delighted that DSEI was once again able to host the world’s largest gathering of the defence and security community.

For those who were unable to join us in person, the DSEI Connect virtual event platform will enable you to fully participate remotely.

DSEI Connect provides all registered participants (whether attending in person or virtually) access to live-streamed and on-demand content. It also allows you to identify and arrange virtual or in person meetings with potential business partners, bringing DSEI to you wherever you are.

Register today to get access to DSEI Connect.

Networking and Doing Business

DSEI brings together the defence community and supply chain to network and build business relationships.

The DSEI Connect platform enables you to find the suppliers you want to meet from the exhibitors and SMEs represented at the event. It recommends relevant suppliers based on the product interests you provide during registration - and you can also do your own searches.

To make best use of your time you can use MeetMe (part of DSEI Connect) to pre-arrange in-person or secure online meetings with the people and organisations you want to start conversations with.

Event at a glance

Content Themes

Industry Engagement & Acquisition

Future Operational Requirements

Obtaining & Retaining Skills

Information Exploitation

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