Of what nationality are both Dentsply Sirona and Omnicom Group?
Omnicom Group Omnicom Group, Inc. is an American global marketing and corporate communications holding company, headquartered in New York City.
Sanoma Sanoma Corporation (Finnish: Sanoma Oyj, formerly SanomaWSOY) is a leading media group in the Nordic countries with operations in over 10 European countries, based in Helsinki. The group is also among the top five European magazine publishers and has a strong position in Finland as well as in Belgium, Croatia, the Czech Republic, Denmark, Estonia, Hungary, Latvia, Lithuania, the Netherlands, Russia, Serbia, Slovakia, and until 2015 in Ukraine.