The Institute of Building Biology + Sustainability or IBN (Institut für Baubiologie + Nachhaltigkeit) was founded in 1983 to provide consumers with objective information and to offer educational programs with a holistic, sustainable, and building biology-ecological approach to building. The training of Building Biology Consultants IBN is one of its main areas of focus.
The website targets the English-speaking audience to provide informations about the institute, promoting the Building Biology Online Course that is available in German and in English.