Cambium System were looking for a simple and unique logo that represents: something that regenerates itself, The social and solidarity economy, The collaborative economy, Blockchain technologies, Meshing & interconnection, Decentralization. They also underlined the need of mathematical suggestion.

The solutions were found in layered circle that immideately speaks for brand name, Cambium. The fibonacci sequence were utilized to bring a "natural" beauty created with the utilizations of mathematics element into the logo.