Acceptance of mandates, special functions, and tasks in leading, strategic, coordinating, or supporting roles for private companies, public authorities, and non-profit organizations both domestically and internationally. The activities may include, in particular, the assumption of leadership and governance mandates, the acceptance of demanding negotiation and mediation mandates, tasks in the areas of economic, financial, and regulatory issues, international relations, institutional questions, science and research-related issues, sustainability, security, and cooperation with state, international, and non-state actors. The sole proprietorship can collaborate with domestic and foreign clients and conduct all business that is directly or indirectly related to the purpose.