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Composition of the boards

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Composition of the boards

Composition of the Management Board

Chief Executive Officer and Statutory Director

Mark Siezen  

Mark Siezen was appointed Chief Executive Officer and chair of the Management Board on 1 September 2022. Mark previously worked as Chief Client Officer at Bouwinvest. Prior to that, he was Executive Director and member of the board at CBRE and held various positions at Multi Corporation, NSI and COFRA Holding (including Redevco and C&A). Mark has been a member of the Supervisory Board of Northwest Clinics (Noordwest Ziekenhuis Groep) since December 2021.

Chief Financial & Risk Officer and Statutory Director

Rianne Vedder  

Rianne Vedder was appointed Chief Financial and Risk Officer on 15 October 2019. She was formerly a Partner at EY Financial Services Advisory and jointly responsible for the growth and continued development of the consultancy practice of the EY organisation. She previously held positions within EY Financial Services and Capgemini. Rianne studied Business Economics at Maastricht University and holds a postgraduate Chartered Controller degree. She is an INSEAD-certified Independent Non-Executive Director. 

Chief Client Officer

Marleen Bosma

Marleen Bosma-Verhaegh was appointed Chief Client Officer on 1 November 2022. Marleen has worked at Bouwinvest since 2016. She was Head of Research & Strategic Advisory until early 2022, when she was made responsible for business development within the Client Management department. Before joining Bouwinvest, Marleen was jointly responsible for international listed and real estate investments at Blue Sky Group. Prior to that, she worked in various positions at Syntrus Achmea Real Estate & Finance, Philips Pension Fund and FGH Bank.

Chief Investment Officer Dutch Investments

Allard van Spaandonk

Allard van Spaandonk has been CIO Dutch Investments since 2013. He was formerly director Asset Management at Bouwinvest, director Retail Investments at Syntrus Achmea Vastgoed as well as Head of Residential Mortgages at Achmea Vastgoed. Allard is a member of the Advisory Board of the Amsterdam School of Real Estate (ASRE) and was member of the Management Board of NEPROM (Dutch association of project development companies) until 31 December 2021.

Chief Investment Officer International Investments

Stephen Tross  

Stephen Tross has been CIO International Investments since 2010. Stephen previously worked in the real estate audit practices at KPMG Accountants NV and PricewaterhouseCoopers in the Netherlands, New York and London. He studied Business Economics at the Hogeschool Utrecht and accountancy at NIvRA- Nyenrode. Stephen is a professional member of the British Institution of Chartered Surveyors and a chair of the management board of ANREV.

Composition of the Supervisory Board

The Supervisory Board consists of four members with Dutch nationality. All the members are independent. 

From left to right: Gabriëlle Reijnen, Jos Nijhuis, Wendy Verschoor and Jos van Lange.

Jos Nijhuis 
Supervisory Board chair Jos Nijhuis (1957) was CEO of the Royal Schiphol Group in the period 2009 to 2018. From 2009 to 2017, he held Supervisory director positions in the financial services sector at AON Group Nederland and SNS Reaal NV/Volksbank. Prior to joining Schiphol Group, Jos held various positions at PwC, for the last seven year as CEO of PwC in the Netherlands. Jos holds a number of Supervisory Board positions, including  member of the Supervisory Board of Hotel Okura Amsterdam, non-executive Board member of Vision Box (Portugal), chair of the investment committee at Quadrum Capital.In 2021, he was appointed as temporary Supervisory Director at Flynth Holding by the Enterprise Chamber for a part of the year. And in 2022 he was appointed as chair of the Supervisory Board of Enexis Holding N.V.

Wendy Verschoor
Wendy Verschoor (1974) is a real estate specialist and an executive with almost 25 years of experience in advising clients on real estate and asset management. Within the Supervisory Board, she is a member of the Audit, Risk & Compliance committee. Since April 2018, Wendy runs her own consultancy practice in the fields of strategy, leadership and governance. Prior to this, she was Head of Client Care at CBRE Netherlands and Buildings director at Arcadis Netherlands. Wendy is chair of the Supervisory Board of Ascert and Woonstad Rotterdam, a member of the Advisory Board of Borghese Real Estate, and a lecturer at the Amsterdam School of Real Estate and the TIAS School of Business and Society. 

Jos van Lange 
Jos van Lange (1956)’s expertise is in the fields of finance, risk, control and compliance in combination with real estate and retail banking. Within the Supervisory Board, he is the vice chair of the Supervisory Committee and chair of the Audit Risk & Compliance committee. From 1980 to 2017, Jos held various positions at Rabobank Nederland and the Rabo Real Estate Group and was CFRO from 2006 to 2013, and CEO from 2013 to 2017. Jos holds a number of Supervisory Board positions. He is chair of the Supervisory Board at the Zuyderland Medical Centre Foundation, vice chair of the Supervisory Board of De Volksbank, a member of the Board of the Tilburg University foundation and member of the DELA Investment advice committee.

Gabriëlle Reijnen 
Gabriëlle Reijnen (1967) has more than 25 years’ experience as an executive, having held a number of senior positions in international finance, risk, and client and portfolio management. Within the Supervisory Board, she is chair of the HR committee. Gabriëlle Reijnen is currently CFO at Beter Bed Holding. In addition to this, she is a Board member of Stichting Continuiteit Merus. Prior to joining Beter Bed Holding she held various positions at ABN AMRO and Alvarez & Marsals, and was Head of Corporate Coverage and member of the Management Team with RBS in the Netherlands.