Independent think tank for a healthy, sustainable, and fair food system

Through fact-based research, progressive debate and strategic collaboration, we leverage the power of food retailers, brands, and governments to drive change. Questionmark is funded by philanthropic donations.

Who are we? Latest: Whitepaper Organic Dairy Blending Obligation

What we do

We envision a world with a liveable climate, thriving biodiversity, a fair society, and good health for all. Realising this vision requires reversing persistent negative trends rooted in today’s food system. Within this system, food retail chains are the most influential actors. We follow three pathways that lead to change:

Competition
Competition

By benchmarking Europe’s largest food retailers we spark competition

Collaboration
Collaboration

We bring together retailers, suppliers and market authorities to establish sector agreements.

Regulation
Institutionalisation

We advocate for a level playing field through legislation and for government monitoring retailers.

Our recent impact

In 2025, we worked with 35 retailers across 9 countries, sparking stronger climate targets, supporting a fair supply chain, encouraging healthy sales, and expanding government monitoring of supermarket sustainability. Take a look at our most recent impact below.

Where we create impact

We focus on the retailers with the greatest market power, since a handful of chains determine what ends up on the shelf for millions of people. We work closely with local civil society partners in Belgium, France, Germany, the Netherlands, Poland, Spain, Switzerland, Sweden and the UK, targeting the retailers that hold the majority of market share in each.

Latest work

From benchmarks to whitepapers and educational events to our advocacy work. Explore our latest research and achievements.

whitepaper
Blending organic

How a mandatory blending obligation of organic could rapidly grow the organic dairy market

publication
Superlist Social 2026

Benchmarking human rights for farmers and workers across Dutch and Belgian supermarket supply chains.

event
What's in store: retail and the future of protein

A multi-stakeholder dialogue accelerating the shift to plant-based protein in supermarkets

3 months ago
publication
Superlist Environment Europe 2026

Comparing Europe's largest retailers sustainability efforts revealing promising roadmaps, but no strong emission reductions

event
Symposium Superlist Environment Germany

Bringing together retailers with 70 food system actors to set the agenda for a more sustainable German retail sector

a year ago
publication
Food for children in supermarkets

Mapping the food products for children on supermarket shelves and revealing the share of unhealthy food

letter
Regulation of multibuys

Our letter urging the Dutch government to regulate multi-buy deals in supermarkets.

event
UK Retailer Symposium

Exploring how UK supermarkets can align climate plans with a shift toward plant-based diets

2 months ago

Partners

Our research and advice serves to substantiate campaigns and advocacy of a wide variety of civil society organisations. These collaborations play a key role in dissemination of our work.

WWF
De Gezonde Generatie
Vegetariërsbond
Réseau Action Climat
Fairtrade Belgium
Milieudefensie
Madre Brava
Proveg International
Rikolto
Solidaridad
Mighty Earth
Unión Vegetariana Española
The Food Foundation
Changing Markets Foundation
Deutsche Umwelthilfe
Oxfam België
Oxfam Novib
Albert Schweitzer Stiftung
Physicians Assocation for Nutrition
Robin Food Coalition

Independent by design

Our research runs on independent funding: donations from philanthropic funds, civil society partners, and people like you who believe the food system can change. Your support keeps us asking the right questions.

Partner with us

We collaborate with mission-driven organisations and sector partners who want to accelerate change in the food system. Interested in joining forces? We'd love to hear from you.