This study investigates how job insecurity and employability relate to job satisfaction and affective organizational commitment in permanent workers, fixed-term contract workers, and temporary agency workers. The authors hypothesized that (a) job insecurity relates negatively to job satisfaction and affective organizational commitment, and this relationship is strongest in permanent workers and weakest in temporary agency workers; and that (b) employability relates positively to job satisfaction and negatively to affective organizational commitment, and this relationship is strongest in temporary agency workers and weakest in permanent workers. Hypotheses were tested in workers (permanent: n = 329; fixed term; n = 160; temporary agency: n = 89) from 23 Belgian organizations. The results show that job insecurity related negatively to the outcomes for permanent workers and temporary agency workers. This relationship was not significant for fixed-term contract workers. Employability related negatively to the outcomes for fixed-term contract workers and temporary agency workers, and this relationship was not significant for permanent workers. The 3 groups had different interpretations of what constitutes a stressor and about what signals a good employment relationship.