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SDSC-UK

SDSC-UK

NEXT SHOW DATES - 3 & 4 February 2026

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The UK’s most diverse and forward-thinking security expo

SDSC troops with Chinook in desert

Welcome to Specialist Defence & Security Convention UK (SDSC-UK), formerly the Three Counties Defence and Security Expo (3CDSE),  the UK’s most diverse and forward-thinking defence and security expo. 

SDSC-UK is an active touchpoint for leading-edge technology and strategic thinking, bringing together the UK's leading innovators to create a forum for mutually beneficial commercial discussions between industry, armed forces, government, law enforcement and emergency services. 

SDSC-UK is proud to work closely with MOD,
in particular, Specialist Operations Command (CSOC) and NAD Group Delivery Teams.

It engages both UK and foreign intelligence,
Government and Law enforcement agencies

Why Visit

SDSC-UK is a unique showcase for this hub of innovation to share new ideas and host those involved in the industry nationally and internationally on their “home turf”. The show brings together senior military leading forces development and procurement, senior police engaged in the fight against cyber-crime, the intelligence and security agencies, and the industry innovators who supply them, to identify future strategies and needs.

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SDSC-UK always has its targets set on the new threat landscape – how air, sea, land, cyber and space capabilities are evolving to become fit for purpose today and prepared for the new challenges and capability requirements of tomorrow.

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Event & Media Partners

We wish to thank our sponsors, media and event partners for their support and contribution to the tremendous success of SDSC-UK 2024 and we look forward to welcoming new and returning sponsors and partners to our next Show. We welcome you and thank you.

1300+ in 2024

1300+ decision-makers from the Military, Law enforcement, Government, Private sector, Security Agencies and Emergency services and 120+ exhibitors attended in 2024.

Look back at 2024

2023

2022

2021

1300+

Decision-makers

30

Speakers

120+

Exhibitors

Countdown

 

  • I found the event to be nothing short of outstanding. In my view 3CDSE has very quickly become a ‘must exhibit’ show for 2020.
    David Lever
    UK Sales & Marketing Manager, Qioptiq
  • One of the best events I have ever been to in over 20 years - highly targeted, the stand was stacked with people, an excellent event in terms of the level of interest, discussion and post-event follow up.
    Paul Donoughue
    Exsel Group
  • A niche event that provides MOD, DE&S and Industry SME engagement for specialist communities that is not replicated elsewhere.
    MOD
  • A great event that is getting bigger and better every year. A really useful opportunity for those in the Defence and Security Sector to exhibit, network and do business.
    IC, Senior Defence Advisor
    Axiom International
  • Fortinet were delighted to be sponsors at the successful 3CDSE 2021 which sets a new industry event standard for combining technology innovation, industry collaboration and MOD staff engagement.
    Chris Parker, MBE
    Director, Fortinet
  • We had a brilliant day and made some fantastic contacts. We were really pleased with how many of the exhibitors and attendees wanted to speak with us and take away some of our Cyber Protect messaging.
    DC7034 Adrian Bacon, Regional Cyber Crime Unit
    WM Regional Cyber Crime Unit
  • "....had a good show, really impressed with the quality of several leads I picked up....we would like to book the same stand for 2022, the spot is perfect!"
    Amit Singala
    Business Development, Workspace Technology Ltd

Event Partner

Event Partner

2026 Military Charity Partner

PR & Communications Partner

Media Partners


 

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GDPR

Please note: SDSC-UK and its trading company 3CDS (Trading) Ltd do not sell or pass on any SDSC-UK contact details to third parties other than those that are expressly authorised to have access to that data for the proper functioning of their roles.

We work with Cyber Quarter, the Midlands Centre for Cyber Security/Univ of Wolverhampton, to ensure that our systems are safe, secure and robust. We are pleased to be rated in the top 10% of organisations for cyber security in the Aerospace and Defence & Security Industry. 

On occasion we are made aware of unscrupulous external actors who claim to hold data from exhibitions such as SDSC-UK. Please be advised that any person offering such data and purporting to be acting on behalf SDSC-UK is fraudulent. Any such perpetrators will be pursued by our sister company, Harrison Clark Rickerbys (hcr), a Top 100 law firm.

Our Security and IT experts advise that it is best not to respond to such emails as by doing so, you may be unwittingly verifying your own email address. If you have any concerns in this regard, please contact Anna Roby-Welford, Director, SDSC-UK anna@3cdse.co.uk