Biogas is one of the most important biofuels that can be produced by biomass owing to its simple and consolidated process. Until the past decade it was used for power production, but because of the direction of European Union policy issues that have drawn attention to the possibilities offered by upgrading biogas to biomethane, currently there are the important conditions for the dynamic growth of this industry. The aim of this chapter is to underline the end uses of biogas compared with its upgrade, with a focus on the gains and limitations of using polymeric membranes for biomethane purification. © 2016 Elsevier Ltd. All rights reserved.