This chapter focuses on the Sais area in Morocco, where drip irrigation use has boomed over the last 20 years. It describes how the extension of drip irrigation in the region was made possible by the emergence of a dynamic network of local irrigation equipment retailers who act as innovation intermediaries. It highlights how the place and role of these intermediaries has evolved with time, notably through changing patterns of relationships with other actors (farmers, public agencies, equipment importers) in the drip irrigation innovation system.