Sebastian began his career as a fiduciary, providing tax and accounting services for wealthy individuals and small to mid-sized companies. He later worked for UBS Card Centre, where he was in charge of consolidation, regulatory financial reporting and optimization of accounting processes. Before joining Parkview in 2012, Sebastian was the commercial manager of a retail chain in Switzerland, where he was responsible for marketing, communication, financial accounting and controlling.

Martin is a veteran of the wealth management industry, with over 30 years of experience as an advisor and leader. During his career at UBS, Martin advanced from a client advising function to General Manger, leading a team of 1600 bankers throughout the Americas.

Dr. Oussama Himani has 20 years of experience in public and private sector financial institutions. He began his career at the International Monetary Fund in 1990, where he rose to become Senior Advisor to the Executive Director and a Member of the Board. During his IMF tenure, Oussama was involved in the review and monitoring of IMF programs critical to managing the Asian and Russian crises.

Marius Holzer is Chief Operating Officer and Partner at Parkview Group. Over a three‑decade career in global finance, he has led origination and back‑office teams, guided strategic transformation projects, and coached senior executives—all with a consistent focus on investment governance, risk management, and family‑office excellence. Earlier in his career, he headed the international business division of a leading global private bank, delivering wealth‑management solutions to ultra‑high‑net‑worth families across Europe and Asia. 

Thomas began his career at Swiss Bank Corporation, predecessor to today’s UBS AG, in 1976, advancing to become Senior Advisor/Managing Director at UBS Wealth management for Latin America and the Iberian Peninsula. During his distinguished career at UBS, Thomas worked in both the Wealth Management and Investment Bank divisions in Zurich, New York, Caracas, Stamford and Geneva. His client experience includes private clients, entrepreneurs, state and central banks and government agencies across many different countries.