
Executive Board
The Executive Board of the Port of Rotterdam Authority consists of Boudewijn Siemons, Vivienne de Leeuw and Berte Simons. The members of the Executive Board are jointly responsible for the management of the company, the general state of affairs of the company and the state of affairs of the group companies affiliated with the company. The Executive Board is accountable to the Supervisory Board and the General Meeting of Shareholders of the company.
An enlightened structure regime applies to the Port of Rotterdam Authority, which means among other things that the General Meeting of Shareholders is authorized to appoint and dismiss directors. The Executive Board is in charge of day-to-day management of the Port of Rotterdam Authority.
Appointment and composition
The members of the Executive Board are appointed by the Supervisory Board for a period of four years in the position of director. The Supervisory Board may also suspend or dismiss the members of the Executive Board. The Supervisory Board regularly assesses the performance of the Executive Board.

CEO
Boudewijn Siemons is Chief Executive Officer (CEO) at the Port of Rotterdam Authority.
Ir. B. (Boudewijn) Siemons
Boudewijn Siemons has been CEO of the Port of Rotterdam Authority since 1 February 2024. In the organisational structure, the commercial and staff departments are below Siemons in his role as CEO.
Experience
Mechanical engineer Siemons became interim CEO at the Port of Rotterdam Authority in July 2023. At the time, he was already COO at the Port Authority (since October 2020). Before joining the Port Authority board, Siemons worked at Royal Vopak as President of the North and Latin America division. He was previously a member of Vopak’s management and worked in that capacity in Europe, the Middle East and the US. Before that (from 1998 to 2006), Siemons held various management positions at Royal VolkerWessels. Boudewijn Siemons began his career in 1987 in the Netherlands Royal Navy, where he served until 1998. He studied at the Netherlands Royal Naval Institute and TU Delft.
Appointed:(CEO) from 01-02-2024
End of present term: 01-02-2028
Former position: President Vopak Americas
Additional positions:
- Board member of VNO-NCW
- Chairman of the Seaports Trade Organisation (BOZ)
- Supervisory board member of the Rotterdam Maritime Museum
- Board member of the Zuid-Holland Economic Board (EBZ)
- Board member of the German-Dutch Chamber of Commerce (DNHK)
- Supervisory board member of Rotterdam Partners
- Advisory board member of the DeltaPORT Community Fund
CFO
Vivienne de Leeuw is Chief Financial Officer (CFO) at the Port of Rotterdam Authority.

Drs. V.D.I.V. (Vivienne) de Leeuw
Vivienne de Leeuw is the Chief Financial Officer (CFO) and responsible for finance, funding, procurement, facilities management, innovation and digital & IT.
Appointed: Chief Financial Officer (CFO) from 01-07-2019
Ens of present term: 30-06-2027
Former position: CFO RTL Nederland
Additional position:
- Chairman of the Supervisory Board of Portbase
- Chairman Supervisory Board Rotterdam Festivals
- Chairman of the board of SmartPort
- Chairman of PortXL Foundation Board

COO
Berte Simons is Chief Operating Officer (COO) at the Port of Rotterdam Authority.
B.G. (Berte) Simons
Berte Simons is COO. The departments responsible for expansion and maintenance of the port and industrial complex and the Harbour Master division report to Simons. These are the Asset Management, Environmental Management, Port Development, (State) Harbour Master and Safety divisions.
Appointed: Chief Operating Officer (COO) from 01-01-2025
End of present term: 30-06-2029
Former position: Business Unit Director EBN B.V.
The responsibilities of the Executive Board include:
- Development, construction, management and exploitation of the port and industrial area of Rotterdam and promoting the effective, safe and efficient handling of shipping in the port of Rotterdam
- Strategy and policy planning in order to realise objectives
- General state of affairs of the company and results of the company
- Assessment and management of risks connected with the business operations
- Ensuring efficient internal risk management and control systems which are reported on in the annual report
- Organising and preparing the financial reporting process
- Compliance with and enforcement of legislation and regulations
- Observance of the company’s Corporate Governance structure
- Publication of the company’s Corporate Governance structure and any other information of which the Code requires publication via the annual report and on the company’s website
- Preparation of the annual accounts and drawing up the annual and important capital investments of the company
Risk management
The Executive Board of the Port Authority bears final responsibility for the risk management and control system with which risks are identified, controlled and reported. This system is based on the internationally accepted standards of the Committee of Sponsoring Organizations of the Treadway Commission (COSO). More up-to-date information about risk management at the Port Authority is available in our annual report.