Abstract: Since the nineties, when substantial changes took place in the management and financing model of the Port Authorities, these have been operating in a highly competitive environment. Against this background, and considering that the Spanish Port System may be oversized, it seems worthwhile verifying the position of each Port Authority by analyzing its strengths and weaknesses. The objective of this study is to conduct a comparative analysis of two competing Port Authorities, potentially in competition with each other, according to the variable "innovative effort". First we analyze their strengths and weaknesses compared to the national situation and then we carry out a comparative analysis or benchmarking between the two authorities.