To move beyond making territories competitive, the sharing of territorialised knowledge offers a specific alternative for living together. In this paradigm, cooperation seems necessary to enable a multi-scalar approach (from a spatial, sensitive and social point of view). These new practices question the relaying of territorialised knowledge, which is itself the result of local concerns and experiments. From sunken paths in central Brittany to dispensaries in northern Cameroon, the authors describe processes of action-research in which territorialised knowledge responds to precarious situations. This reconfiguration of the dissemination of territorialised knowledge opens up new perspectives, both in the researcher’s relationships to his subject of study (the territory), to decision-makers (elected representatives) and to the populations encountered (local residents). This overall rise in global competences allows to target needs in local territorial engineering, which in turn questions the range of training courses available in the field of spatial planning.