The production of agricultural commodities requires a massive use of freshwater resources. However, given the worldwide trade of these commodities, water resources available and used in the production sites are virtually displaced to the importing countries, by means of trading companies, addressed as Transnational Corporations (TNCs). It is therefore pivotal to uncover the role played by companies in the international redistribution of water to enhance water stewardship, a concept related to social, environmental and economic sustainability in water use. Recent research started to emphasise the importance of tracking food commodities flows at the sub-national level, where the environmental and climatic heterogeneities of producing regions are directly related to variations in the unit water footprint (uWF, [m3/ton]) of cultivated crops.