Nikolas has founded ADVENGERS along with his partner, George Gritzalas. ADVENGERS’ vision is to break new grounds every day, with data-informed creative thinking, in order to offer an innovative, full-blown, results-oriented marketing & communications offering to our clients. The last 15 years he has gained hands-on experience with some of the biggest companies in the Media and Advertising industry. ADVENGERS’ clientele includes companies like: Papadopoulou Biscuits, AUDI Kosmocar Greece, NOVA, Notos, National Opera of Greece, Volkswagen Bank, Harley Davidson, MASTERCHEF / Star Channel, Praktiker Hellas, ACTION AID, La Redoute, JAGUAR.He is the co-founder of Hangover Media, the most popular youth media agency in Greece. In 2019, Hangover Media was awarded “Media Agency of the Year”.