The lists drawn up here contain in fact not all projects that have been carried out by the company PSP (or by one of their partners) since 1995, however the significant ones. They are classified into the same three categories as the engineering services offered by PSP:

In order to facilitate the view, every category has been further sub-divided into two sub-groups. The different numbers and frequencies of projects in the six groups reflect certain temporary focal areas which followed from the history of the company and their respective clients. They are not an expression of a more or less distinctive ability in the particular subject.