Visit the database called WARC. At the top in the menu, select "more" and then > Geographies. WARC groups content by regions, countries or territories. Select a country to examine business' ad campaigns in specific countries.
WARC is a top resource for analyzing country-level media consumption, and ad spending--collaborating with Nielsen Ad Intel to provide expenditure data across some product categories.
WARC helps to answer questions like, for the clothing industry in France, what are the top mediums for advertising YoY?