Fiduciary Offices in
Bad Zurzach

M. Attenhofer, Aktiengesellschaft Zurzach

Since 1921 · 1–10 empl.

M. Attenhofer, Aktiengesellschaft Zurzach provides fiduciary services, including company formation support, accounting, tax advice, auditing and business consultancy.

ZIHLMANN VERWALTUNGEN AG

Since 1985 · 1–10 empl.

ZIHLMANN VERWALTUNGEN AG provides administrative and infrastructure services to its subsidiary companies, including office and IT support and central business-process services. The company develops and manages affordable housing and performs ongoing property administration and maintenance.

AS & T Attenhofer Steuerberatung & Treuhand

Since 1990 · 1–10 empl.

AS & T Attenhofer Steuerberatung & Treuhand provides fiduciary and advisory services, including accounting, tax advice, audit services, company formation support and financial planning for businesses and self‑employed clients. The firm also offers specialised services for medical practices and assistance with cross‑border matters between Switzerland and Germany.

AS & T Treuhand, Attenhofer & Co

Since 1994 · 1–10 empl.

AS & T Treuhand, Attenhofer & Co provides fiduciary services including accounting, tax advisory, audit/revision, company formation support and business consulting. Offerings include payroll accounting, VAT and withholding tax handling, practice-oriented support for medical practices, and assistance with cross-border and succession matters.

ZIHLMANN TREUHAND AG

Since 2009 · 11–20 empl.

The core activity of Zihlmann is the provision of services in the fields of accounting, taxes, and trust. This includes, among other things: accounting and tax returns, payroll accounting and settlements, tax planning and optimization, company formations and administrations, inheritance and gift taxes, pension fund and asset management, real estate management and brokerage. The company thus offers a comprehensive range of services for companies and private individuals in the fields of finance and administration.

AS & T AG Attenhofer Treuhand

Since 2014 · 1–10 empl.

AS & T AG Attenhofer Treuhand is a fiduciary firm providing services in accounting, tax, audit, company formation and business advisory. Its offerings include bookkeeping, payroll, tax filings, statutory and limited audits, financial planning and specialised support for medical practices and cross‑border Switzerland–Germany matters.

Pfauen Treuhand AG

Since 2022 · 1–10 empl.·5.0(1)

Pfauen Treuhand AG is a fiduciary firm providing accounting, tax consultancy and trust services. Its offerings include bookkeeping and financial statement preparation, VAT and payroll accounting, tax planning, company formation, marriage and inheritance contracts, succession planning and fiscal representation.

Studenland Beratung Martin Fricker

Since 2003 · 1–10 empl.

Studenland Beratung Martin Fricker provides fiduciary and tax consulting services, including bookkeeping, financial statements and AHV, SUVA and VAT accounting. Other services include tax return preparation, representation before authorities, IT training (Windows, MS Office), assistance with transfers to senior and care homes including apartment clearances, and the organisation of advance directives, powers of attorney and wills.

audax ag

Since 2007 · 21–50 empl.

The core activity of audax AG is auditing and revision, in particular the performance of limited and ordinary audits, reviews, auditor's reviews, special and extraordinary audits for companies, foundations and associations.

Intermédiaire-Eco AG

Since 2016 · 1–10 empl.

1 A Unternehmungen AG

Since 2016 · 1–10 empl.

DMD Treuhand & Immobilien GmbH

Since 2023 · 1–10 empl.