Posted on June 16, 2026
The Advisory Board of N-Sea Group announces that Martin Adler has stepped down as Chief Executive Officer, effective 15 June 2026. He is succeeded by Pim Nelemans, formerly Chief Operating Officer, who has been appointed Chief Executive Officer of N-Sea.
Over the past five years, Martin Adler has successfully led N-Sea through a period of strong growth and strategic advancement, further reinforcing the company’s position as a leading provider of integrated subsea solutions. Under his leadership, N-Sea has strengthened its operational capabilities, expanded its service portfolio and consistently delivered safe, reliable and value-driven solutions to its customers across the offshore energy sector.
The Advisory Board extends its sincere appreciation to Martin for his leadership, vision and dedication, which have been instrumental in positioning N-Sea for continued success. We are pleased that he will remain connected with the company as shareholder and Chairman of the Advisory Board.
The day-to-day management will be carried out by the Management Board, consisting of Pim Nelemans (CEO) and Ann Porte (current CFO).
Martin Adler commented:
“After more than five years leading N-Sea following its acquisition by CapitalChange in 2021, we have achieved the key objectives set out to accomplish, and I believe that it is the right moment to hand over leadership.
Together, we have transformed N-Sea into a stronger, more professional, and more resilient organisation. We have expanded our capabilities across survey, UXO ID & clearance, cable repair & installation and IRM, construction & decommissioning, strengthened our position in key international markets, and rebuilt N-Sea as a recognised and trusted integrated subsea services provider.
After many years in senior leadership roles at Dockwise and Boskalis, Pim brings extensive operational expertise, deep sector knowledge, and a strong understanding of both our customers’ needs and the subsea environment. His collaborative leadership approach, combined with his ability to build strong relationships across all levels of the organisation, from shareholders and the Executive Committee to our offshore and onshore teams, makes him ideally suited to lead N-Sea into its next chapter of growth and to further reinforce our reputation as a trusted subsea partner.”
Pim Nelemans commented:
“I would like to sincerely thank Martin Adler for his outstanding leadership and the strong foundation he has built over the past years. Under his guidance, N-Sea has evolved into a high-performing, ambitious and forward-looking subsea services provider, with a clear strategic direction and strong market positioning.
I am honoured to accept the role of Chief Executive Officer. Building on this solid foundation, I will continue to accelerate our growth, strengthen our integrated service offering and further position N-Sea as a trusted partner in the evolving offshore and subsea landscape.
Together with the management team and our talented people, we will focus on international expansion, delivering innovative and smart solutions, maintaining operational excellence and creating long-term value for our customers, partners and shareholders.”
Prior to his appointment as CEO, Pim served as Chief Operating Officer at N-Sea, where he was instrumental in strengthening the company’s market position and driving its international expansion. Before joining N-Sea, he built an extensive track record in the maritime and offshore sectors through senior leadership roles at Dockwise and Boskalis, including Managing Director of Heavy Marine Transport and Director of Estimating and Engineering Offshore.
Pim holds a Master’s degree in Business Administration from the Rotterdam School of Management, Erasmus University, and has completed executive education programmes at the London Business School.
About N-Sea
N-Sea is an end-to-end subsea services provider. With a fleet of 14 multipurpose vessels and a range of in-house systems and equipment, N-Sea delivers smart, fit-for-purpose solutions for subsea infrastructure projects in every stage of the offshore asset life cycle for customers in the international offshore energy industry. Our bespoke solutions focus on specific subsea capabilities, such as survey, UXO ID & clearance, cable repair & installation, or IRM, construction & decommissioning.
With the support of an experienced, multidiscipline offshore operations team, we integrate these bespoke capabilities into a single project, delivering a smart, fit-for-purpose, safe and sustainable solution that improves the efficiency of subsea projects and reduces projects risks for our customers.
N-Sea Group is a privately owned company headquartered in the Netherlands, with more than 500 people working offshore and onshore, onboard vessels and in facilities across Europe and the Middle East, and a revenue of more than €200M in 2025.
