This study explores stages of professional development among Israeli school counsellors by investigating their attitudes toward evolving professional identity and professional patterns across the career span. We interviewed 15 school counsellors from different age groups, seniority levels, and school types (elementary, middle, high). A consensual qualitative research strategy enabled classification of counsellors' rich descriptions into various developmental stages. We classified four distinct stages according to counsellors' perceptions of counselling, professional identity, work patterns, and resources and barriers in their work: exploration, establishment, maintenance, and specialisation. Findings enriched the knowledge of counsellors' professional development and its application with counsellors in the field. We discuss implications for further research and practical applications, mainly for supervision and career planning.