Kadi4Mat (Karlsruhe Data Infrastructure for Materials Science) is a virtual research environment (VRE) that was developed at KIT. It is used for the administration and analysis of research data from the research areas of materials science and macromolecular chemistry, but can also be used for other disciplines. Kadi4Mat is based on open source software. The modular and generic architecture with many interfaces makes it possible to meet the specific needs of different scientists from different research disciplines. Kadi4Mat is one of the tools of the NFDI4Ing.