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Leadership Team

Robin van Poelje

van Poelje

Chairman and CEO

Robin van Poelje is Chairman and CEO of, Chairman of the Investment Committee of Strikwerda Investments, Member of the BoD of Constellation Software Inc., and Member of the BoD of Lumine. Robin has been with CSI since January 2014 when CSI acquired TSS (now From January 2010 to now, Robin has been the Chief Executive Officer of, based in the Netherlands. Robin holds an MSc. in Economics from the University of Groningen, the Netherlands, and is a postgraduate in Marketing and Strategy from École Supérieure de Commerce de Montpellier, France.

Abe Bakker



Abe Bakker is Chief Executive Officer at Your.Online, Investment Director at Strikwerda Investments and former Head of M&A at Your.Cloud. Before joining Strikwerda Investments in 2014, he gained extensive M&A experience in the ICT sector since the start of his career at KPMG in 2011. Abe obtained a Master’s degree in Econometrics from the University of Amsterdam.

John Reynders



John Reynders is Chief Executive Officer at Your.Cloud and has extensive international management experience in leading IT companies and a proven track record in scaling a buy-and-build platform. Previously John has led the growth in the Benelux of Visma. Under his leadership, Visma has grown from €20 million in revenue to €600 million in the Benelux through a combination of organic growth and 50 acquisitions. Before his role at Visma, John held several local and international senior management positions at Microsoft, including Area Director Microsoft Dynamics Western Europe. John holds a degree in geophysics from Utrecht University.

Tjitske Strikwerda



Tjitske is CEO/owner at Strikwerda Investments and Member of the Investment Committee of Strikwerda Investments. Tjitske has a background in business economics and has been managing the family office since its founding in 2000. She has various advisory and supervisory board roles, including at Your.Online, Your.Cloud, Reconi, ABN AMRO and several Dutch charity foundations.

Jean-Pierre Buijtels



Jean-Pierre Buijtels is Chief Investment Officer at Strikwerda Investments, Member of the Investment Committee of Strikwerda Investments, Member of the Supervisory Board of Your.Online and former member of the BoD of Before starting at Strikwerda Investments in 2011, he worked in private equity at Gimv and 3i. Jean-Pierre started his career at PwC Transaction Services after graduating from Maastricht University (Msc. International Business).

Gerdjan Warnars



Gerdjan Warnars is Investment Director at Strikwerda Investments and former Head of M&A at Your.Cloud and former Head of M&A at Your.Online. Gerdjan has been working at Strikwerda Investments since 2014. He started his career at KPMG after completing his financial management studies and worked at a corporate finance boutique.

Dorinda van Oosten

van Oosten


Dorinda van Oosten is a General Manager at TSS for PharmaPartners (NL) and the French-speaking businesses (FR) and Member of the Supervisory Board of Your.Cloud. Dorinda has been working for TSS since 2018 and is involved with acquiring and growing software companies in the Benelux, Switzerland and France, and coaching of Managing Directors of Vertical Market Software companies within TSS. Dorinda has a Master’s degree in Business Administration from Erasmus University Rotterdam.