Digital outdoor advertising operator MAER GROUP has been operating in the Russian advertising market since 2003. The company is the leader in terms of the area of media facades in the country, and also has a large network of digital billboards in Moscow. MAER GROUP operates in 12 cities of Russia and advertises for the world's largest brands. The company's founder and CEO is Konstantin Mayor. MAER GROUP is the developer of O2O (offline-to-online) technology, which allows the audience to see advertising content first in outdoor advertising and then on their mobile devices. It does this by collecting and analyzing MAC addresses of phones, tablets and laptops. Also MAER GROUP has developed and patented its own programmatic platform.