The aim of this master’s thesis is to study how competency is seen in information service management related work assignments. Information service management (ITSM) is seen as an ability support organization and benefits its resources for different business processes or help organization to develop its already exist-ing information technology work assignments. Competency, within organization, enables organization to acquire a key position in competing markets. Competency means combination of knowledge, skills and abilities. IT-competency can be divided in four different categories: Personal traits, professional skills, business knowledge and technical knowledge. In this study, a framework is developed from previous academic literature. With the help of the framework, this study aims to define how competency is seen in the information service management related work assignments. According this study, competency in ITSM related work is heavily concentrated in interpersonal skills, specialty in ITSM, organizational skills, knowledge in application software, problem-solving skills, ITSM related development methods and analytical skills. However the study emphasize that following studies should be conducted related the topic because of the context of the material used in the empirical part of the study.