This paper aims to analyze the characteristics of the leadership of the Argentine Industrial Union (UIA) in post-convertibility focusing on the corporate trajectories of its leaders, that is, investigating their industrial activity, their trade union affiliations, forms of Access and permanence in these positions. The reconstruction of corporate trajectories makes it possible to analyze how they influence internal dynamics, in their forms f organization, representation of interests, and in the relations they establish with state agents. In these years, the main industrial sectors recovered dynamism and preeminence, recovering investment, production and Jobs and imposing a new type of state intervention which implied an increase in the economic intervention of the state seeking to favour workers and small and medium-sized entrepreneurs while it sought greater control over the concentrated sectors of the economy that enabled a new type of relationship between the state and the business sectors. In this new context, the UIA regained a leading role that also exposed the internal heterogeneities in their declarations and political positions by characteristics and affiliations of those who occupied the highest leadership positions of the entity. This paper analyze the corporate trajectories of industrial leaders to account for of the constitution of the corporate business action (ACE) that then it explains its collective positions in the public sphere, through its links with private and public agents.