KONGSBERG Launches Aegir Subsea Situational Awareness Sonars

KONGSBERG Launches Aegir Subsea Situational Awareness Sonars

The Aegir solution is scalable and can be deployed on several platforms. © KONGSBERG

KONGSBERG announced the launch of Aegir SSA (Subsea Situational Awareness), a new family of sonars designed to improve maritime security, safety, and navigation through continuous underwater awareness.

Unveiled at ONS 2026 in Stavanger, the Aegir range represents a new generation of commercial sonar solutions developed to meet the growing need for situational awareness around ports, critical infrastructure, coastal areas and offshore assets.

Based on more than 80 years of sonar experience, Aegir combines acoustic technology with compact form factors, simplified integration, and scalable deployment options ranging from small uncrewed surface vessels (USVs) and buoys to fixed installations and larger maritime platforms.

As part of the Aegir SSA concept, KONGSBERG offers an AI-powered virtual sonar operator service that enables operation without continuous human involvement. The AI can be configured for specific missions and trained by customers’ own operators to retain and apply their operational knowledge.

As maritime infrastructure becomes increasingly important to energy security, transportation, offshore operations, and national resilience, operators require better visibility below the waterline. Ports, harbors and coastal environments present unique challenges. High traffic density, shallow waters, drifting objects and potential unauthorized activity create risks that often remain hidden from conventional monitoring systems.

The Aegir family is designed to provide operators with actionable underwater awareness, enabling detection, classification and tracking of objects and activities beneath the surface while supporting safer navigation and more informed decision-making.

Ahead of the commercial launch, KONGSBERG collaborated with Fugro to deploy Aegir SSA on a SEAWATCH buoy connected to the Oslofjord Testbed, demonstrating how fixed monitoring infrastructure can support continuous protection of critical maritime assets.

Earlier this year, KONGSBERG announced two major contracts reflecting growing demand for integrated monitoring and protection of critical maritime infrastructure. One contract covers surveillance of Princess Elisabeth Island in the North Sea, where KONGSBERG will deliver technologies including drone detection radar and vessel traffic services. The other, for an unnamed international customer, focuses on underwater surveillance and protection.

As part of the launch, visitors to ONS will be able to view a live data feed from an operational Aegir SSA sonar installation located in the Oslofjord. The system is integrated on Fugro's SEAWATCH buoy platform connected to the Oslofjord Testbed, combining persistent offshore monitoring, real-time data delivery and advanced subsea sensing to enhance protection of critical maritime infrastructure.