Key takeaways on digital transformation in defence from DSEI 2025

Derek Lipscombe, Director Major Accounts, VOSS
Author: Derek Lipscombe
Director Major Accounts, VOSS

Tuesday, September 30, 2025

Earlier this month, DSEI 2025 took place at London’s ExCeL, a world-leading event that brings together government, military, and technology innovators to explore the future of security and defence. With thousands of people filling the exhibition halls, the atmosphere was one of innovation, collaboration, and urgency – reflecting the pace of change across the sector.

This year’s show placed a strong emphasis on digital transformation, with AI and quantum computing taking center stage as enablers of faster, more informed decision-making. Demonstrations showed how these technologies are already being applied in live operational scenarios.

Collaboration and partnerships – spanning public, private, and international boundaries – were highlighted as essential to accelerate innovation and build more resilient ecosystems. There was also recognition that organisations are diversifying their approach to secure collaboration tools, exploring a broader range of options in messaging and conferencing to balance security, interoperability, and user experience. And with collaboration platforms now deeply embedded into daily operations, secure and effective management of environments (like SharePoint, Microsoft Teams, and Webex) is becoming increasingly critical to information governance and mission success.

Cybersecurity dominated the conversation, underscoring the urgency of tackling ever-more sophisticated digital threats. Beyond strengthening cyber defences, access management models are also evolving, with attribute-based access control (ABAC) emerging as a more dynamic, context-aware alternative to traditional RBAC approaches.

In parallel, the importance of vendor-agnostic, self-hosted solutions that can flexibly operate across hypervisors or hyperscalers is growing, giving organisations greater sovereignty, resilience, and control over their technology landscape. Finally, immersive technologies such as AR and VR were firmly in the spotlight, showcased as powerful tools for both training and operations, and highlighting how quickly these innovations are shifting from pilot programmes to being applied in the real world.

Against this backdrop, the role of advanced technology management and optimisation becomes clear. Defence and government organisations are under pressure to integrate new digital capabilities at scale while ensuring reliability, security, and cost-effectiveness. Tools that provide automation, deep visibility, and actionable insights into incredibly complex communications environments are now mission critical. These capabilities not only reduce complexity and operational overhead but also enable organisations to embrace innovation with confidence, supporting secure, resilient, and future-ready digital transformation.

Derek Lipscombe, Major Accounts Manager at DSEI 2025
Derek Lipscombe at DSEI UK 2025

For us, attending DSEI was about more than observing these trends – it was an opportunity to connect with partners, customers, and innovators who are shaping the future of defence. The clear message from DSEI 2025 is that technology adoption isn’t enough on its own. Success will depend on how well new innovations are embedded, secured, and scaled to meet mission-critical demands.

Looking ahead, we expect future DSEI events to focus even more on how organisations can balance rapid innovation with operational resilience – a challenge that will define the next era of defence.

We have a long and proud history of working with many organisations in this sector, streamlining operations, strengthening platform resilience, and ensuring robust security with advanced features like ABAC, compliance with FedRAMP and DISA standards, proactive cybersecurity measures, and multi-layered secure access. So, if you are a defence or government organisation looking to achieve secure and scalable digital transformation by automating UC management, delivering real-time analytics, or enabling seamless migration from legacy systems, we would love to hear from you!