Marios is heading the Geneva, Switzerland office of a multinational consulting company that he established back in 2015. He is advising HNWI in the domain of citizenship and residence planning, while in the past has held various financial positions in multinational firms in the US, UK, China and Greece. During his career, Marios has assisted a number of start-up companies in enhancing their balance sheet and fine-tuned their growth strategy. He holds a master's degree from Brandeis University in the US in International Finance and Accounting, and speaks seven languages.