Introduction – People and society are more concerned about Corporate Social Responsibility as well as the demand of outsourcing logistics services. When buyer companies select TPL providers, the selection criteria are focused on cost and on time delivery, while issues like CSR are often placed in a low priority. Purpose – The purpose of this master thesis is to analyze how Corporate Social Responsibility (CSR) impacts as selection criteria when buying services from Third Party Logistics (TPL) providers. Design/Methodology – The research approach of this thesis is qualitative. Both primary data and secondary data collection were used; semi-structured interviews, emails, field observation and documentation. There are seven respondents from three different companies. Findings – From buyer companies’ perspective, CSR was taken into account when buying services from TPL providers. However, it had impact on a low priority since the buyer company chose leading TPL providers that have a good reputation and image. The buyer company believes that those selected TPL providers have already implemented CSR practice. Moreover, the results show that the main driving force behind the application of CSR was the customer requirement Research limitations – This master thesis has studied in a specific Swedish company when selecting TPL providers. Moreover, this research has been studied from the buyer companies’ perspective.