Although it is always difficult to establish a clear causal link between the economic context and the mobilizations processes, in the past few years Portugal has experienced its strongest cycle of mobilization since the revolutionary period (1974-1975). However, in contrast to other southern European countries, these social mobilisations did not result in the emergence of strong new political actors, or a sustained threat to the consolidated party system. Nevertheless, there were significant changes to the political landscape, particularly with the creation of an unprecedented strategic alliance between left-wing parties following the October 2015 elections. Seeking to explain these developments, this chapter complements our earlier work by tracing the evolution of the ‘dynamics of contention’ in Portugal since 2011, paying particular attention to facets of embeddeness and institutionalisation of Portuguese civil society and party systems.