Over time, the seven models discussed in the first chapter have undergone modifications and hybridization processes. Each single national system can therefore be described as a patchwork that comprises different subsystems and organizational logics. The purpose of the second chapter is therefore to think about the organizational variants and criteria through which hybrid systems are designed. The fundamental concept of segmentation of healthcare systems is introduced, according to which each national system can be broken down into subsystems, to which different models are applied. To better understand the different forms of segmentation, some examples will be given. The healthcare financing systems adopted in the Netherlands, France, Germany and the United States are briefly outlined. The final section compares the twenty-seven countries covered in this analysis. For each individual national system, not only the prevailing financing model is indicated but also the“ancillary” models used.