Our Team

Joost de Kluijver


The idea behind Closing the Loop was born during a project I did in Tanzania, 2010. My former company brought mobile phones to Africa for reuse. There I saw that mobile phones lead to huge problems at the end of their lifespan. Closing the Loop is the result of a long-term effort and strong local networks. I am proud of that.

Reinhardt Smit

Supply Chain Director

I grew up in South Africa and Ghana. After finishing my IT studies and Hotelschool in The Netherlands, I started my own company to improve communication and workflows of organisations and projects. During my work I came across the world of electronic waste and recycling. At Closing the Loop I focus on strengthening the existing networks.

Marc Staalman

Business Developer

Pollution is causing a serious threat to life on planet earth so our circularity is key to reduce this problem. Electronic waste is a fast growing part of this pollution issue and needs to be taken care of. Having worked for more than 15 years in the ICT business it is now time to share my knowledge and skills to contribute on reducing electronic waste.

Josefien de Kool

Josefien de Kool

Junior Business Developer

Circular and innovative solutions will be viable for a sustainable future. That's why I joined Closing the Loop. My international experience in the public and private sectors made me realise that companies that operate sustainably could really make a difference in the world. At CTL, I use my experience to create and maintain partnerships on all levels.

Hannah Jung

Operations & Responsible Business Coordinator

I joined Closing the Loop because I truly believe in the business model around circularity and the reduction of e-waste, combining social, environmental and economical value. With my background in business and environmental science & policy I use my knowledge to support the development of structured and standardised procedures at Closing the Loop.

Stef Kranendijk

Board Member

Stef is an entrepreneur in sustainability, highly convinced the world needs reforestation, can completely run on renewable energy and successfully implement the circular economy in all sectors. As Chairman and CEO of Desso from 2007, the transformation via a massive program of product and business innovation based on Cradle-to-Cradle principles. This move towards the implementation of the circular economy helped Desso to double its market share and tenfold its profit. At SYSTEMIQ Stef, as Affiliate Partner, supports activities that will accelerate the implementation of the circular economy in all business sectors. Stef is a regular speaker about the profit and market share building Circular Economy concept at the European Commission, EIB and before that at London Business School, IMD Lausanne, Rotterdam School of Management, The Ellen MacArthur Foundation, the WEF at Davos and other occasions.

Jan van Berne

Board Member

Jan van Berne, has over 20 years International Operational and M&A experience (Sait-radio Holland, Debitel, Versatel and Expereo) and has been active for 12 years as an International investor in bio and agri-tech, IT, media and telecom, with a strong focus on impact and sustainability. In his operational career, Jan has set up companies and operations in more than 14 countries. Jan is a hands on Investor actively helping and driving growth for Scale-ups. Jan holds board positions in various companies, amongst others Closing the Loop and Eco. Movement.