In this article, we consider the functions of students' unions (SUs) through a UK case study. First, a functional classification of educational representation; wider representation; delivery of commercial services and faciliating a student community is outlined. Second, we specify a theoretical framework in terms of neo-liberalism and therapeutic ideas of education. Third, we discuss recent SU functional changes. Fourth, we interpret those changes through the theories outlined above. Our contribution to scholarship is threefold; first we study the evolution of UK SUs. Second, we apply theory to interpret these changes. Third, we generate findings that could be applied to develop a comparative international literature.