This CIRCALGAE report gathers all information as to algae production and uses in Europe, pointing out volumes, species, regions, uses and biomass streams generated. It is divided in several sections according to algae types and production technologies (macroalgae, microalgae cyanobacteria and Labyrinthulomycetes), as well as downstream uses for ingredient production and algae-based products. Recent evolutions will also be evaluated (sourcing constraints, new players, emerging processes) to anticipate future shifts in raw materials availability and quality. This photography of the European algae landscape will help identify gaps and possible synergies and mark potential opportunities for new biorefineries.