During the last two decades, scholars have pointed to a process of “denationalization,” or the delegation of competencies away from the center of the nation‐state—upward, downward, and sideward. At the same time, scholars have observed a transformation of the central state aimed at strengthening its steering capacity by means of integrating sectoral public policies and coordinating administrative units. Little systematic comparative evidence is available regarding this second phenomenon and its relationship with denationalization. The authors contribute to this line of research by presenting a comparative analysis of cross‐sectoral reforms concerning public policies and public sector organizations, covering four policy fields in 13 countries, from 1980 to 2014. Using descriptive statistics and Bayesian change point estimation, this article shows that policy integration and administrative coordination reforms configure a powerful trend, which displays considerable variation across time, policy fields, and countries.