The core activity of TRESO Treuhand AG is the provision of services in the fields of trust, accounting, and taxation, as well as auditing. Specifically, this includes: trust services, including merger and acquisition consulting, inheritance law and estate administration, company formation, purchase and sale, and succession planning; tax consulting, both nationally and internationally, withholding tax declarations, VAT consulting and declarations, as well as VAT representation for foreign companies; accounting services, including payroll and personnel administration, outsourcing of accounting, and consulting on financial statement preparation; and auditing, including annual financial statement audits, voluntary audits, special audits, and formation/conversion audits.