Public Strategy for Sustainable Development (PS4SD) is a think-tank and advisory network registered in 2000, based in Brussels and The Hague, with associates in Berlin, London and Oslo. PS4SD combines the expertise and experience with governance, impact assessment and stakeholder engagement of its founders Louis Meuleman and Ingeborg Niestroy and their associates.

In our work we develop new solutions for the stumbling blocks that governments, civil society, science and business are facing in their attempts to move towards sustainable societies. We focus on governance (how to organise change, with metagovernance as a modern approach); impact assessment (how to assess success or failure, how to combine environmental and sustainability assessments); stakeholder engagement (how to influence governmental decisions and how to get governments to participate in stakeholders’ sustainable innovation arrangements). 


Louis Meuleman

Founder/Director  Bio  Contact   

Sustainability (meta)governance, SDGs, public management, participation methods, strategic planning

Jan-Gustav Strandenaes

Associate  Bio  Contact 

Governance of the SDGs, UN governance, stakeholder participation

Ingeborg Niestroy

Founder/Director   Bio  Contact 

Sustainability governance, SDGs, geography of sustainability, science-policy interface, impact assessment

Roel in 't Veld

Associate  Bio  Contact 

Public governance, sustainable development, education governance, knowledge democracy, science-policy relations

Andreas Versmann

Associate  Bio Contact  

Environmental law, circular economy, participatory methods, training and  moderation, peer to peer learning

Francesca Valentini

Junior Researcher  Bio  Contact 

SDGs, environmental law, environmental psychology, water law and management, human rights, vulnerability & forced displacement

Sally Nicholson

Associate  Bio  Contact  

Environment and sustainability in development policy, Sustainable Development Goals, civil society organisations

Gaetane Charlier

Junior Researcher  Contact 

Sustainability governance, environmental law, climate and social justice movement, participatory methods