Cadeler A/S is an offshore wind installation vessel contractor operating in Denmark, the UK, Germany, Poland, the rest of Europe, the US, and Taiwan. It transports and installs offshore wind turbine generators, foundations, topsides, and substations, and provides maintenance for offshore wind turbines and structures. The company also engages in offshore decommissioning, salvage assistance, heavy lift and project cargo, and hydraulic pile driving. It owns and operates ten offshore jack-up windfarm installation vessels. Incorporated in 2008, it is headquartered in Copenhagen, Denmark.