The People behind the Time is Now Foundation

Management board

Marte Visser

Founder | Project Manager

Marte has a strong network, due to her broad experience with founding and running charitable foundations, and her work as a photographer and filmmaker. Combining this with her passion for nature conservation and her management skills, she purposefully works towards making our mission a reality.

Yvonne Lang

Co-founder | Advisor

Yvonne worked for UNCTAD in New York as an international law and sustainable development specialist.
In 2016 she started her social company Vanthilly ‘The icedreammakers’, in Amsterdam. She advises the foundation on organizational development.

Yanna Hoek

Project officer

Yanna has a strong sense of justice, and feels very connected to nature. Therefore she decided to become a green criminologist. Her expertise helps her to understand the way we deal with sustainability issues like climate change. Yanna worked for ‘Follow this’ and Amnesty International. She now works on the daily management of the foundation.

Board of trustees

Carin Prins


Advisory and coaching psychologist for businesses and individuals at Prins & Partners

Anouska van Leeuwen


Head of Marketing and Communications at BPD Gebiedsontwikkeling

Don Gerritsen


Head of Benelux at The PRI, the world’s leading proponent of responsible investment

Advisory board

Henk Ovink

Special Envoy for International Water Affairs for the Netherlands. Principal at Rebuild by Design, Ministries of Infrastructure and Water Management, Foreign Affairs and Development

Bernice Notenboom

Climate journalist, film maker,
arctic-expedition leader

Robin Brouwer

Society philosopher for system change at Robin Brouwer Collective

Arjen Wals

Professor of Education and Learning for Sustainability at Wageningen University, and Research at Gothenburg University

Annick de Witt

Author, change-maker, consultant. Cultural and inner transformation for global sustainability

Ewout Zandvliet

Financial Controller at Draijer Brokerage and Real Estate Management

Henk Tameling

Publicist, researcher and advisor at Henk Tameling Coaching and communication

Jan Vos

Politician at PvdA, climate and clean energy, nature conservationist

Marcel Elsenaar

Educational advisor and partner at Kadans. Sustainability and identity development

Core group

Jelte Bosma

Partner at DAREL. Supports organizations and energy transitions by evaluating business cases and leading technically complex projects.

Lammert van Raan

Member of the Dutch parliament for de Partij voor de Dieren.

Giuseppe van der Helm

Director Coöperatie Leren voor Morgen

Guy Sommerdijk

University of Applied Sciences Biology Teacher and Teacher Training Teacher at Fontys Hogescholen

Michiel van Liere

Member Dutch party D66, alderman for sustainability and the municipal energy transition in Houten, the Netherlands

Tom Daman

Pos Pupil at Dalton Gymnasium The Hague. “Teach us, the next generation, how to build a sustainable future, and we will create one, for the prosperity of everyone”

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We are looking forward to hearing from you!