The ICT Card (Intra-Corporate Transfer Card) is a residence permit for third-country nationals who are being transferred to a German branch of their company as part of an intra-corporate transfer. However, they may only work at that company. These individuals are also subject to easier mobility conditions within the EU. For example, they can stay in Germany without a German residence title and also work if they already have a residence title in accordance with the ICT Directive of another EU state.
Further information, including the duration of the stay and the requirements, can be found in the flyer of the BAMF.