Sebastian Onken

Sebastian Onken is the founder and Managing Director of Onken Offshore Contractors GmbH. With over a decade of experience in offshore wind and high-voltage cable systems, he has built a company known for its technical precision and operational reliability. Sebastian began his career in the HV cable industry, gaining hands-on expertise in installation, commissioning and marine coordination. Since establishing OOC in 2014, he has led the delivery of complex infrastructure projects across Europe, consistently meeting demanding technical and logistical requirements. His leadership style combines strategic oversight with direct involvement in project execution, ensuring that quality and safety standards are upheld throughout. Sebastian is committed to advancing offshore energy through innovation, skilled personnel and responsive client service. His reputation for integrity and excellence continues to position OOC as a trusted partner in the renewable energy sector.