The core activity of Fiduciaire Thierry Tièche is the provision of services in the field of financial and tax consulting, including: tax consulting and planning, preparation of tax returns for individuals in the Romance cantons and the canton of Bern, advice on real estate transactions and mortgages, accounting and financial planning, advice on inheritance and gift taxes, and advice on optimizing taxes and finances. The company also offers services in the field of real estate sales.