The purpose of this study is to investigate whether organizational factors can influence the success of social movements. This is accomplished through a qualitative comparative case study where the women's suffrage movements, Women's Social and Political Union and Landsföreningen för Kvinnans Politiska Rösträtt are compared. The study also aims to increase the understanding and knowledge of the two movements' organization and exercise to answer the question, why both movements succeeded. The study provides an in-depth picture of how the female suffrage movements worked and the similarities and differences between the movements. Finally, the study finds that the organization of the movements did impact the outcome of the movements and can thus explain the success of WSPU and LKPR.