The conference and exhibition, dedicated to undersea defence technology

Undersea Defence Technology (UDT) is a multi-faceted three-day exhibition and conference that brings together key stakeholders from across Europe and beyond - reflecting the international interest and investment in undersea security and defensive solutions to enable the community’s desire for continuous learning and development. 

Designed to equip nations to deal with an increasing diversity of threats and challenges, UDT brings together researchers, military end-users and professionals spanning the entire supply chain to evaluate, discuss and connect with like-minded peers to develop solutions, ranging from sub-sea to space.

Key Information

The Conference Programme at UDT

For 2026, our expert driven conference will explore emerging and existing threats and prospects within the underwater defence domain. This will be witnessed through technical presentations, in-depth case studies, and the sharing of proven best practices.

With over 1,500 naval professionals, across three theatres and our keynote theatre, UDT remains the global leading event dedicated to undersea defence technology, bringing together the largest gathering of professionals, industry and military experts to discuss the ongoing issues in the naval industry.  

Conference Speakers

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Exhibition & Exhibitors

Exhibiting at UDT 2026 offers limitless possibilities for industry professionals, to showcase their advanced undersea defence capabilities and connect with peers, potential clients, and industry leaders from sectors such as Artificial Intelligence (AI), underwater technologies, and defence.

Factoring in the valuable suggestions of previous participants, our committee work extensively throughout the year to compile a compelling and challenging conference programme. This, alongside a varied exhibition of relevant solution providers, is the basis upon which we continue to attract a high-quality audience of influential decision makers.

2026 Exhibitors

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Technologies To Explore at UDT

Submarines

The event's central focus is the cornerstone of modern undersea defence strategies – submarines.

UDT will explore how to harness the rapid advancement of innovative technologies such as AI-powered navigation, silent propulsion systems, and next-generation combat capabilities to ensure lethality and precision to secure mission success in the undersea battlespace.

Undersea technologies 

UDT brings together a dynamic range of undersea technologies and delves into technical challenges around their creation and implementation, which informs undersea exploration, defence strategies, and critical infrastructure protection. The event will serve as a platform to showcase the latest innovations for undersea inspection, communication, and data analysis, ensuring a comprehensive understanding of the undersea domain. 

Sonar

Undersea acoustics are the key to securing superior situational awareness and operational effectiveness through a clear picture of the undersea battle space.

The show offers a comprehensive view of the latest developments in sonar technology. Attendees can expect to learn about novel methods and solutions in Undersea detection, classification, and communication that enhance operational advantage.

Networking

UDT provides a variety of opportunities to help you maximise your networking potential over the three days of the event. You'll have the chance to connect with your target audience and engage in meaningful conversations with new contacts.

For this year, UDT brings the networking event onsite at Excel London to ensure all attendees have the opportunity to connect and enjoy their afternoon with peers.

Conference and Exhibitor attendees will have the opportunity to meet with leading industry professionals and experts to discuss potential collaborations and meet their target audience.  

UDT 2025 Post Event Report

Each year, UDT releases a comprehensive post-event report, drawing on insights from the latest edition, UDT 2025.

Before attending UDT 2026, take the opportunity to review the performance of the 2025 event. This will help you enhance your experience and effectively plan for your trip to London in 2026.

UDT Overview

Curious to see what happens at Undersea Defence Technology (UDT)?

Military, public sector and industry representation continues to reach new heights, and the exhibition continues to feature a wide variety of PRIMES and SME's.