Governance and Supervision
De Regenboog Groep operates under a Supervisory Board model and is managed on a day-to-day basis by a one-man Board of Directors (BoD), which also forms the management board and is ultimately responsible for the organization as a whole.
Hans Wijnands
Current additional positions:
- Board member Cooperative Social Firms Amsterdam
- Board member Friends of De Regenboog
- Board member De Derde Schinkel Foundation
- Member of the board of the Building and Development Fund Foundation
- Member of the board of Deutscher Hilfsverein Board member Parentshouses Foundation.
Karen Blanken
Joined October 4, 2021 | working as:
- Human Resources Manager Akvo Foundation .
- Project Manager BCorp Implementation .
Current additional positions:
- Chairman Building and Development Fund Foundation Board
- Chairman Supervisory Board Friends of De Regenboog
- Chairman Supervisory Board of De Derde Schinkel Foundation
- Chairman Supervisory Board Z!
- Chairman Supervisory Board Parentshouses Foundation .
Mostapha Nazih
Acted July 11, 2019 │working as Police Leadership Trainer within North Holland Unit
Current ancillary positions:
- Member of the Supervisory Board of Friends of De Regenboog .
- Member of the Supervisory Board of De Derde Schinkel Foundation .
- Supervisory Board member of the Z!
- Supervisory Board Member Parentshouses Foundation .
Jeroen Steenbrink
Acted February 15, 2024 | working as deputy chief public prosecutor, Amsterdam Public Prosecutor's Office
Current additional positions:
- Member of the Supervisory Board of Friends of De Regenboog .
- Member of the Supervisory Board of De Derde Schinkel Foundation .
- Supervisory Board member of the Z!
- Supervisory Board Member Parentshouses .
Anneke Ensink
Acted Oct. 4, 2021 | serving as director Foundation Implementation Maatwerk
Current additional positions:
- Member of the Supervisory Board of Friends of De Regenboog .
- Member of the Supervisory Board of De Derde Schinkel Foundation .
- Supervisory Board member of the Z!
- Supervisory Board Member Parentshouses .
Erik Swelheim
Accession effective July 11, 2019
Current additional positions:
- Member of the OLVG Supervisory Board (and chairman of the Audit Committee)
- Board member of the Carré Fund .
- Member of the Board of Foundation Building and Development Fund
- Member of the Supervisory Board of Friends of De Regenboog
- Supervisory Board member De Derde Schinkel Foundation
- Supervisory Board member Z!
- Supervisory Board Member Parentshouses Foundation .
- Chairman of the Audit Committee De Regenboog Groep
Ragna Louman
Attained December 11, 2025 │Director of Business Operations GGZ NHN Division Social and Specialized
Other positions:
- Member of the Supervisory Board of Friends of De Regenboog .
- Member of the Supervisory Board of De Derde Schinkel Foundation .
- Supervisory Board member of the Z!
- Supervisory Board Member Parentshouses Foundation .
Jan-Peter Broek
Attached Dec. 11, 2025 │Working as Financial Director, Stichting IEA Secretariaat Nederland & International Association for the Evaluation of Educational Achievement (IEA) AISBL
.Other positions:
- member decision-making committee D66 Amsterdam .
- member of the board of the Andreas Ensemble Management Association .
- Treasurer Association of Owners Andreas Ensemble Block A
- Member of the board of the Building and Development Foundation .
- Member of the Supervisory Board of Friends of De Regenboog
- Supervisory Board member De Derde Schinkel Foundation
- Supervisory Board member Z!
- Supervisory Board Member Parentshouses Foundation .
Niels Bartels
Attained December 11, 2025 |
Current additional positions:
- Director-shareholder of Eternal Power B.V. (holding company) and Power Creations B.V. (renewable energy, financial advice, exploitation of musical works)
- Member of the Supervisory Board of Friends of De Regenboog .
- Supervisory Board member De Derde Schinkel Foundation .
- Supervisory Board member of the Z!
- Supervisory Board Member Parentshouses Foundation .