The aim with this essay is to analyse the co-operation between syndicalists and the other trade unions in Karlstad between 1928-1931. The essays secondary aim is to analyse what kind of actions the syndicalists used against the companies in Karlstad. An important issue was if the syndicalists could maintain its position against the reformist trade unions in Karlstad. My results showed that the syndicalists could maintain its position against the other trade unions in Karlstad. They co-operated with the reformists on all levels, local, regional and nation-wide. The co-operation was most successful on the local level. The essay can also show that the local syndicalist-organisation used following actions against the employers: registration-activity, blockade and strike.