FELIX. WHO'S A CLEVER CAT ?, created in 2011 (Switzerland), from 1702 sister brands and 6071 competing brands. FELIX. WHO'S A CLEVER CAT ?'s notoriety arose from exemplary management which optimizes product quality and client satisfaction, which in turn generate financial performance, and therefore, stock performance. Being a Popular brand online is assessed based on the evolution of worldwide Web searches over the last five years.