In order to show various technical possibilities how companies can take time-, resource- and cost-saving steps towards digitization, Ostfalia’s "GrowIn 4.0" project team has compiled a catalog of demonstrators of several Industry 4.0 technologies, which is being continuously expanded. The "Ostfalia I4.0 Catalog" is intended to illustrate the potential of digitization measures and also to encourage interested companies to have a look at the technologies in use and to talk about cooperation opportunities for their development.