C3RRO® offers technology for issues related to temperature and moisture transport in buildings and building components. The company was founded in 2021 as a spin-off of the Fraunhofer Institute for Building Physics IBP, based on the Fraunhofer IBP product family WUFI®. C3RRO® will convert the Fraunhofer computational kernels into modern web-based software tools, thus expanding the offering to include “software as a service”.