Vocational teachers (VTs) have been seen as the key individuals executing changes, solving problems and achieving goals in vocational education and training (VET). Therefore, the work of VTs is fragmented between different types of tasks which influence their professionalism and professionality (individual views, experiences and professional practices of teachers). Despite this, their professionality has been studied remarkably little, and previous studies have focused on different narrow aspects of professionalism. However, it is not clear how various factors, including changes in VET, can shape VTs' perception of their professionality. Based on a meta-analysis, this study aims to create comprehensive knowledge through an empirical model of vocational teacher professionality in the context of VET changes based on the example of Estonian VET. The results show that VTs have expressed different perceptions, evaluations and experiences of change in VET, and therefore different forms of collaboration and learning activities have been used to adapt to changes, which together shape the professionality of VTs. Therefore, three profiles of VT professionality have emerged and the wider scope of the collaboration of VTs fosters more positive attitudes, satisfaction and commitment to their work and profession, while also relating to their higher self-efficacy, which supports coping in demanding pedagogical situations and when faced with new tasks and roles in a changing context.