Managing Partner of the Viennese advertising agency Demner, Merlicek & Bergmann.
Grew up in Vienna and Geneva. Studied law, journalism and art. Speaks five languages. Is married with one child. At the age 23 he started his own advertising agency with the goal of becoming the country’s foremost creative authority.
Mariusz Jan Demner is a lifetime member of the ADC (The One Club) New York, the ADC Germany and of the IAA (International Advertising Association). Demner was co-founder and long-time President of the Creative Club Austria (CCA).