This chapter discusses whether the prevalent representation of education as an equaliser of opportunity and social improvement is still relevant in Argentina or whether it has been transformed by thirty years of private education development. Argentina prohibits for-profit higher education, while the country has neither very low-quality private institutions nor institutions owned by multinational consortia. After contextualising inequality in the Argentinean social structure, the authors propose a quantitative analysis of the typologies of private higher education institutions before analysing the role played by the institution and the family in the academic trajectories of students in a private higher education institution for upper-class students in Buenos Aires. Based on empirical research and quantitative analysis, this chapter highlights the social construction of private higher education in Argentina and the differentiation mechanisms at work in this sector. Students' personal experiences at one of the most prestigious private universities based on their decisions, expectations, and perceptions reveal 'circuits of inequality' linked to their social origin. The different mechanisms of social distinction work through the underlying structure of private higher education circuits and mechanisms, which contribute to the (re)production of social inequalities.