The company Madaster develops and offers a platform that enables the improvement of the circularity of buildings and facilities by providing a digital product passport for building components and materials. The platform supports various stakeholders in the construction and real estate industry, such as contractors, architects, manufacturers, financial institutions, and demolition and disposal companies, in implementing sustainable and circular approaches. The company's core activity consists of developing and distributing this platform, as well as advising and supporting customers in implementing circular solutions.