Adrie - " I am very excited that by now Questionmark assessed 35 supermarkets in 9 European countries, for example on climate action and protein transition. We campaign with so many civil society organisations for public accountability. Stimulate supermarkets to take collective actions and lobby governments to create level playing fields through regulations - the Dutch government's monitor sustainable supermarkets is up and running. A big thank you to our donors, especially those supporting us with critical dialogue and core funding. Go Questionmark, go! "

Miriam - “It has been a real pleasure to be part of the Questionmark Board for over the past 5 years. I’m grateful that I could contribute my expertise in food policy and public affairs to the board’s discussions. What I’ll remember most is seeing the impact of Questionmark’s work, especially how its supermarket benchmarking has been embraced by the Dutch government to monitor how supermarkets promote healthier and more sustainable choices. It’s wonderful to see pioneering ideas become part of the norm. Thank you for the inspiring collaboration, and I wish Questionmark every success in the years ahead.”

Yvan - “ It’s been a real pleasure (and honestly a privilege) to serve on the Questionmark board—as something of a double minority: the only non-Dutch member and the only male. More importantly, I’ve had a front-row seat to see Questionmark’s impact grow across food systems in several European countries.

What makes Questionmark stand out to me is its ability to truly move the needle. The Superlist benchmarking cuts through well-polished claims by food retailers and brings real, data-driven transparency—pushing them to follow through on their promises.

I’ve been consistently impressed by the team: thoughtful, committed, and genuinely focused on impact. That impact feels stronger than ever today. There’s still a long road ahead—and it will require continued support from society and foundations—but I’m convinced the best is still to come.

I’m also very glad to see Sietze Haringa step into a board role and take on audit. Questionmark’s financial oversight is in very good hands.”

Peter - "Throughout my career I’ve seen how decisive food retailers are in shaping a food system that is healthier, environmentally sustainable, and fair. Real change happens when ambition is matched with transparency: clear goals, honest measurement, and visible progress. Questionmark stands for exactly that approach. What gets measured, gets done—and what’s done together, goes further. That’s why I support the Questionmark Foundation and look forward to teaming up to turn insight into impact.”

Sietse - ”For nearly 25 years, I was a partner at KPMG as an auditor and consultant and also had various internal roles.
A significant part of my portfolio involved the broad Public Sector, including (large) national and international NGOs. I also had several larger clients and assignments in the fashion wholesale and retail industry. In recent years, I have been primarily active as a supervisory board member and director at various organizations. I study Philosophy and Art one day a week. In my dealings with Greenpeace at the time, I noticed the founding of the Questionmark Foundation. At that time Charlotte Linnenbank as a KPMG consultant was developing its first business plan. I found this to be a remarkably fresh and very useful initiative with a clear mission and a young, enthusiastic and dedicated team. I continued to follow QM with interest and have been impressed by the high level of engagement and the growing influence and impact. In my opinion, high-quality and convincingly thorough factual research aimed at sharp communication through ‘Naming and Framing’ is of essential importance for influencing the industry, politics and society itself to do more for health, the environment and social values. I consider the invitation by the board to join and play a more active role as an honor. Obviously my background means that I will focus on finance and risk management. But be sure my involvement will first of all regard our strategic mission in society and the cooperation with management and staff. I am happy to dedicate myself to the continuity and success of the Foundation and all its internal and external stakeholders.”