Money-laundering is a major issue in today's financial environment. As the criminals get more resourceful the financial sector needs to get cleverer and develop at the same pace. This study aims to find out how different financial companies actively work with the prevention of moneylaundering and financing of terrorism. The study specifically aims to get the reader an understanding and knowledge about the routines and work methods that Swedish financial companies use in their active work against money laundering. The study also reflects upon how financial companies can link their work and responsibility with money laundering and their legitimacy against society and stakeholders. The study is a qualitative study which contains information from interviews with four different Swedish financial companies and a perspective of how they actively work to prevent money laundering. From the results of these interviews, some thematical subjects have been brought out and analyzed to get the reader a better perspective and understanding of the relevance of these subjects in correlation to the work against money laundering. The study also aims to identify similarities and differences between different financial companies and potential differences in how they work with preventing money laundering.