The chapter provides an overview of how policy analysis takes place in Mexican Think Tanks. It focuses on two of the few organisations of this kind that currently exist in the country: the Centro de Investigación para el Desarrollo (CIDAC, or Centre for Research for Development) and the Centro de Estudios Espinosa Yglesias (CEEY, or Centre of Studies Espinosa Yglesias). The chapter is divided into four sections. The first discusses the main features of think tanks, with a particular focus on the Mexican ones. The second presents the origins and general objectives of CIDAC and CEEY, and describes how these two organizations conduct policy analysis. The third compares both cases, paying particular attention to how they define their topics of interest, how they gather relevant information, what kind of policy products they generate, what kind of communication channels they use, and how they assess the impact that their analyses may have had. The chapter closes with some conclusions and general remarks about the future challenges of policy analysis in Mexican think tanks.