William Lüthi is a strategic advisor specializing in international business development, reputation and stakeholder management, and high-level strategic advisory for family offices, ultra-high-net-worth individuals, multinational corporations, and international organizations.

He advises clients on international expansion, strategic positioning, cross-border partnerships, executive visibility, and institutional engagement, helping organizations navigate complex commercial, geopolitical, and reputational environments across EMEA, and APAC.

William began his career in crisis communications and reputation advisory before serving in senior advisory roles with the Automobile Club de France and later as Chief of Staff to a GCC multi-family office, where he supported international expansion, strategic coordination, governance initiatives, and cross-border investment structures.

He also contributed to the international commercial development of MLW Air LLC, the aviation company owned by Mark Cuban.

Today, William advises multiple family offices and private organizations on long-term strategic development, international relations, corporate intelligence, logistics, and security coordination. His work increasingly spans cybersecurity, artificial intelligence, digital resilience, and geopolitical risk, supporting decision-makers in addressing the growing intersection of technology, security, and international affairs.

His advisory work focuses on aligning business strategy with reputation, resilience, and influence, enabling principals and organizations to strengthen their long-term positioning in an increasingly interconnected and rapidly evolving global environment.

William has been invited to speak as a guest speaker at the Saïd Business School, University of Oxford, where he discussed the strategic role of the Chief of Staff in modern organizations.