Primary focus on circularity and sustainability in the build environment and infrastructure sector. How can we supply sufficient affordable and sustainable homes/buildings? The infra sector also faces huge challenges in replacement- and renovation works. Mark has a broad experience in materials, construction and project development. Before joining TNO in 2020 he worked for CRH, PontMeyer and was also for 10 years self-employed. He holds an Engineering degree in construction and a Master degree in Business Administration (Nyenrode Business University and University of Rochester, New York). Member of the Program board of the Dutch Green Building Council.