Fraunhofer-Iwes participated in the Floatgen floating offshore wind (FOW) demonstrator as a consortium partner, providing technical advisory services focused on benchmarking. Within the EU-funded Floatgen programme, Fraunhofer-Iwes’ stated task was to benchmark the Floatgen demonstrator relative to other floating wind solutions, supporting an evidence-based comparison of the platform concept and its performance characteristics against alternative FOW technologies. This benchmarking scope formed part of the broader demonstrator validation effort associated with Floatgen’s deployment at the SEM-REV offshore test site off Le Croisic, where the project aimed to validate design concepts, technologies and operational performance under real-sea conditions. By contributing comparative analysis, Fraunhofer-Iwes’ work supported technical learning objectives for the demonstrator, including understanding how Floatgen’s floating system behaviour and results positioned the concept within the wider floating offshore wind technology landscape. The role was advisory in nature rather than supply or installation, and it was described as an allocated responsibility within the consortium partner structure for the project, alongside other partners’ defined work packages (e.g., simulations, environmental impact analysis, and consortium management).