Sri Lanka Universities Clerical, Management Assistant & Technical Services Union (CUCTAA) is the unique and exclusive registered trade union in Sri Lanka. All non-academic staff members of the university system hold the membership of this union. Current membership exceeds 7000. There are 15 branch networks. CUCTAA membership expanded in a wide range from labour grade to executive grade.

Union mainly act on employment problems, common and individual problems of membership and legal issues pertaining to the job. It works towards maintaining cordial relationship between university administration including top management and employees. The union always and continuing for using on enhancing productivity of its members while working on their welfare activities by introducing funeral fund and retirement payment benefits.