About Us
Christoph Kronhagel studied architecture at the TH Aachen and founded
1991 in Cologne the ag4, an interdisciplinary team at the interface between architecture and media. Corporations such as adidas, BMW and Festo have had their brand essence staged in their rooms by ag4. In this context, among other things, the technology for the transparent media façade was developed. In 2010, Christoph Kronhagel sold ag4.
Since then, Christoph Kronhagel has developed and implemented many new projects and business models in the field of mediatecture.