In this study we examine how employment insecurity affects social exclusion using data from the German panel study PASS. Assuming that secure employment is an important condition for the subjective feeling of social affiliation, we compare unemployed individuals and those in fixed-term, temporary agency or permanent employment. Applying hybrid random effects regression models we find that temporary workers feel less affiliated to society than permanent workers. This finding cannot be fully explained by economic and social resources or job status. We discuss alternative mechanisms, such as reduced life-course predictability and processes of social exclusion at the workplace.