Spliethoff Group operates a large and modern fleet of around 145 vessels, including multipurpose, geared tween-deckers, heavy lift vessels, shortsea vessels, Ro-Ro vessels, semi-submersible vessels, and module carriers. The group consists of several companies: Spliethoff, Sevenstar Yacht Transport - DYT, BigLift Shipping, Bore, Wijnne Barends, Transfennica / Transfennica Logistics, and ForestWave. The company is known for its in-house engineering and logistics capacities, and its vessels are equipped for challenging areas, with most having Swedish/Finnish Ice Class 1A or 1A Super.

