Ever since the governments began to meet for the Conferences of the Parties (COP) to try to come to agreement over an international climate agreement, civil society organizations involved in the climate issue have also gathered for their own conferences in relation to the COP. Still the role of these re-occurring “COP counter summits” in global climate governance have not been researched in depth. In order to contribute to a better understanding of the role the COP counter summit in climate governance in general, the aim of this study is to conduct a qualitative single-case study of one of these meetings. This is carried out by a field study to the COP counter summit in Paris 2015 with methods of participatory observation and semi-structured interviews with informants. An analytical framework was developed based on theory within related research fields, like parallel summits, social movements and globalization studies. The study contributes with research about what functions of the COP counter summit in Paris had for civil society and how these functions were performed.