The High Field NMR Research Infrastructure groups together the highest field NMR spectrometers at the national level (from 750 to 1000 MHz), into a single entry point integrated infrastructure, that provides a combination of unique, cutting-edge instruments and state-of-the-art expertise in NMR, together with the associated human resources, for a wide variety of advanced experiments in many fields of application. The infrastructure comprises 7 nodes spread over the country. These nodes are flagship national NMR laboratories and are all specialized in developing the NMR technique itself.Much of IR RMN THC work is related to providing the technical and methodological development at the heart of NMR that allow for breakthroughs in application problems. The areas of application are diverse, from structural biology, chemistry, physics, medicine, geology, or materials sciences. Thus, the network provides services to users in many areas ranging from medical science to physics.Each site provides one third of its available high-field experimental time to the community through a constantly open online call for proposals.