Defence & Security Equipment International (DSEI) London

09. - 12. September 2025 | Trade Fair for Military and Security Technology

The Defence & Security Equipment International, commonly referred to as "DSEI", is a prestigious trade fair specialising in defence and security. Established in London in 1999, DSEI has become an essential gathering for industry experts and decision-makers from around the globe. Held biennially in September, the fair draws visitors and exhibitors from a diverse range of sectors. It is organised by Clarion Events Ltd, a company renowned for its expertise in managing large-scale events.

Central to DSEI is the focus on contemporary military capabilities and the dynamic between providers and stakeholders within this niche sector. The event addresses a broad spectrum of issues, spanning from border controls, organised crime, and illicit trade, to terrorism. Exhibitors present cutting-edge products and services tailored to the evolving needs of the defence and security industries. A notable feature of the fair is the chance for industry professionals to stay abreast of current and emerging trends and to interact directly with manufacturers. Participating exhibitors hail from varied sectors, including defence firms and security technology providers. DSEI attendees comprise decision-makers, strategic investors, and specialists from the defence and security arenas. Hosted at the striking ExCeL London, this modern exhibition and conference centre is situated in the heart of London. Owing to its prime location, ExCeL London is conveniently accessible both by public transport and by car, making it an optimal venue for business interactions and networking.

The Defence & Security Equipment International (DSEI) will take place on 4 days from Tuesday, 09. September to Friday, 12. September 2025 in London.

In 554 days
Date:
09.09.2025 - 12.09.2025*
Tuesday - Friday, 4 days
Trade Show Contact
Display e-mail address
www.dsei.co.uk

Audience:
professional visitors only

Cycle:
biennially

Year of foundation:
1999

Local time:
21:23 h (UTC +00:00)

Fair location:

ExCeL London,
One Western Gateway, E16 1XL London, Greater London, England, United Kingdom of Great Britain and Northern Ireland

Hotels

for trade fair date in London


Fair organizer
Clarion Events Ltd.
69-79 Fulham High Street
SW6 3JW London, United Kingdom of Great Britain and Northern Ireland
Tel: +44 (0)20 73847700
Fax: +44 (0)20 73847701
Display e-mail address
www.clarionevents.com
Past editions:
  • 12. - 15. September 2023
  • 14. - 17. September 2021
  • 10. - 13. September 2019
  • 12. - 15. September 2017
  • 15. - 18. September 2015

Fair location:

ExCeL London,
One Western Gateway, E16 1XL London, Greater London, England, United Kingdom of Great Britain and Northern Ireland

Hotels

for trade fair date in London


Product groups: ammunition, control systems, electronic warfare, emergency equipment, first aid equipment, infrared systems, radar systems, rescue equipment, simulation systems, surveillance cameras, tactical equipment, telecommunication systems, weapons, …

Disclaimer: No responsibility is taken for the correctness of this information. Errors and alterations excepted! Fair dates and exhibition sites are subject to change by the respective trade fair organiser.

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FAQ

Where does the Defence & Security Equipment International (DSEI) taking place?
The Defence & Security Equipment International (DSEI) fair takes place in London, at the ExCeL London.

When is the Defence & Security Equipment International (DSEI) taking place?
Visit the Defence & Security Equipment International (DSEI) from 09. - 12. September 2025.

How often does the Defence & Security Equipment International (DSEI) take place?
The Defence & Security Equipment International (DSEI) takes place biennially.

What kind of fair is the Defence & Security Equipment International (DSEI)?
The Defence & Security Equipment International (DSEI) is an exhibition for Military Technology, Safety Technology and Defense Technology.