GnpIS.Ephesis is a web portal dedicated to phenotype and environment experimental trials. It allows the building of phenotyping datasets based on multiple trials, on several years and places. Those dataset can be used for genotype–environment interactions (G×E) metanalysis or genetic association and GWAS studies. This national database currently stores data for all plant species studied at INRA, either annual species like wheat and barley, or perennial species like grape, oak and poplar. It is evolving to an international distributed information system to allow a broader data integration.