Sascha Reiche develops a multi-modal commodity class specific freight model at the level of firms for the area of Germany that allows integration of macroscopic as well as disaggregate input data. Three modes of transport and 30 types of goods at the spatial level of 403 national and 29 international regions are considered, taking into account supply chain specifications of 88 different German business branches. The goal of this model is to provide fundamental insights into domestic freight transport organisations which should prove useful to decision makers with reference to the subject.