The impressive, nationwide customer list in the BBT include numerous local housing associations. “Henri Ludeke, Managing Director of OPET GmbH, which is a pretty decent deal: we know what our customers win when working with our products: the analysis possibilities are almost endless and you have ready all data at a glance.” About the CalCon group CalCon is a spin-off of the Fraunhofer Institute for building physics IBP and deals since the year 1999 epiqr the development and marketing of the process. epiqr arose from a research project of the European Community, which should enable a uniform assessment of existing buildings. After the completion of the EU project, the Fraunhofer IBP developed the process via its spin-off CalCon next. Epiqr Software GmbH, the CalCon Germany AG as well as the CalCon engineering company are integrated in the CalCon holding GmbH mbH. The company of CalCon group objective is to implement the results and findings of research and development projects for the optimisation of existing real estate with regard to economic, ecological, but also socio-cultural criteria throughout Europe practical and economically.

About BBT group BBT group, that are over 70 people who very specifically develop in interdisciplinary teams on the situation and task-related solutions and concepts to implement. Our principle is to offer solutions for all real estate economic problems from a single source. Differentiated specializations, high individuality and teamwork are the basis of our consulting and implementation expertise. Our strength is a comprehensive qualification and specialization spectrum, which is fully aligned on the focus of real estate. Our advice has a strategic goal: preserving value and optimization. It is the result many years of industry experience and detailed knowledge of the operations.