GTT Marine

GTT Marine is the maritime digital division of France's GTT Group, formed by bringing together Danelec, Ascenz Marorka, Vessel Performance Solutions, and Kyma. Its software portfolio covers the ship-shore loop: Voyage Insights for voyage planning and optimization, Vesper Insights for vessel performance, Fleet Insights for fleet monitoring, and Safety Insights built on Danelec's voyage data recorders.

The division also sells the hardware that feeds those platforms, including voyage data recorders, shaft power meters, and electronic fuel monitoring systems, plus LNG cargo and sloshing monitoring that reflects GTT's membrane containment heritage. Danelec's acquisition of the Nautilus Labs AI platform brought machine-learning voyage optimization into the group, and a 2026 partnership with BetterSea adds FuelEU pooling through the Vesper Insights platform.

GTT Marine positions itself as an agnostic platform that integrates with the systems owners already run. Its voyage and performance products compete with ZeroNorth, StormGeo, and DeepSea Technologies; the VDR installed base, reported at 17,000 units worldwide, gives it an unusually large hardware footprint to build software on.