OneCIS™ equips the Swedish Navy for NATO-ready maritime IT operations

As Sweden steps into NATO’s fully connected environment, mission success increasingly depends on digital systems that can share secure situational awareness across nations. In this new landscape, readiness is defined not only by ships and hardware, but by IT that can adapt, integrate, and deploy at the speed of modern operations. This case explores how MilDef’s OneCIS^™ platform enables the Swedish Navy to meet these demands and strengthen its role within NATO. 

1. The Challenge 

As Sweden integrates into NATO, its defense forces face the challenge of achieving full interoperability with allied nations.  

Maritime operations demand secure, real-time communication between ships, command posts, and joint task forces, while long deployment cycles and fragmented systems create bottlenecks that limit readiness and increase cyber and coordination risks. 

2. The Solution: OneCIS^™ by MilDef 

To address this need, the Swedish Defence Materiel Administration (FMV) selected MilDef’s tactical IT platform, OneCIS – a NATO FMN-compliant solution designed for rapid deployment and allied interoperability. 

Through an agreement valued at 81 MSEK (with potential to reach 127 MSEK), OneCIS will be deployed across the Swedish Navy’s ships and command posts, providing a unified and secure foundation for communication in NATO’s connected environment.  

Combining MilDef’s hardware, software, and integration expertise, the platform delivers end-to-end functionality and has already proven its reliability and scalability in other Nordic defense environments. 

3. The Value 

With its modular, plug-and-play design, OneCIS integrates efficiently into existing naval systems and remains adaptable to evolving operational requirements. 

• Rapid deployment and faster mission readiness.  
  Rollout timelines drop from months to weeks. 
• Proven NATO interoperability.  
  Seamless integration across NATO FMN frameworks and allied systems. 
• Lower cost and reduced complexity.  
  Unified software and hardware reduce management burden and integration overhead. 
• Enhanced security and reliability.  
  Built-in compliance and secure communications minimize risk of error or breach. 

With OneCIS^™, Sweden strengthens communication, resilience, and operational interoperability – turning compliance into a strategic advantage. The partnership between MilDef and FMV underscores the trust in OneCIS as a cornerstone technology for the future of joint Nordic and NATO defense operations.