The core activity of Hauser Treuhand AG encompasses the provision of services in the following areas: Trust and accounting (financial and payroll accounting, interim and annual financial statements), Tax consulting and optimization (handling of tax matters, representation before cantonal and federal tax authorities), Legal consulting and mediation (mediation and questions in all areas of law), Business and corporate consulting (foundations, succession solutions, restructuring and valuations), Auditing and financial auditing (organization of legally required or voluntary audits), Real estate (support in the sale of properties, organization of expert opinions and property valuations), Banking and insurance (representation of interests vis-à-vis banks and insurance companies). The company positions itself as a reliable partner for companies and private individuals, representing their interests vis-à-vis administrations, authorities and other contractual partners.