Association of Teachers and Lecturers - approximately 170,000 members.
University and College Union - trade union and professional association representing
all types of professional staff across the UK higher and further education.
National Association of Head Teachers - Approximately 40,000 members.
National Association of Schoolmasters and Union of Women Teachers.
National Association of Teachers in Further and Higher Education - approximately 70,000
National Union of Teachers - approximately 250,000 members.