This a quiz, in the domain of general knowledge and culture, based upon the above photo. To help you answer, I'll give you a few hints. Last weekend, when Natacha and Alain came to visit me at Gamone, the weather was mainly wet, but the three of us were equipped with umbrellas. Two of us do their shopping systematically in a chain of international stores of Scandinavian origins, whose name starts with I. The colors of the flag of the home country of that celebrated commercial organization, largely present in the stores themselves, are well known. The third umbrella owner is less organized, purchasing goods in any old boutique at all.
Question: Who are the respective owners of the umbrellas?