Fiduciary Offices in
Rheinfelden

Renus Treuhand & Immobilien GmbH

Since 2010 · 1–10 empl.

The core activity of Renus Treuhand & Immobilien GmbH encompasses services in the areas of real estate and trust. Specifically, the company offers the following services: property management, condominium ownership, real estate sales, trust services, and initial and re-rental. Thus, the company provides a comprehensive range of services for property owners, buyers, and tenants, from the administration and management of properties to the brokerage and sale of properties.

THEMIS Versicherungen AG

Since 2012 · 1–10 empl.

The company's core activity is the provision of services in the areas of trust, insurance and personnel administration. This includes in particular: Trust: accounting, annual financial statements, tax consulting, financial planning and value-added tax settlements Insurance: company liability, pension fund and other insurance services Personnel administration: personnel leasing, payroll and salary administration The company thus offers comprehensive services for companies and private individuals in the areas of finance, insurance and personnel.

Rinaudo & Kiss Immobilien GmbH

Since 2016 · 1–10 empl.

Rinaudo & Kiss Immobilien GmbH is a real estate company that provides brokerage and advisory services for the purchase, sale and valuation of residential and commercial properties.

THEMIS Treuhand AG

Since 2015 · 1–10 empl.·4.2(10)

The core activity of THEMIS Treuhand AG is the provision of services in the areas of accounting, tax consulting, financial planning, insurance and personnel leasing. Specifically, this includes: accounting and annual financial statements, tax returns and tax consulting, financial planning and value-added tax returns, support for company formations and succession planning, personnel leasing and personnel administration. The company positions itself as a trust company and offers its customers comprehensive services in these areas.

thv AG

Since 1978 · 1–10 empl.·5.0(2)

thv AG is a fiduciary and advisory firm providing fiduciary services, auditing, business consulting, legal advice and tax consultancy. The firm primarily serves SMEs and non-profit organisations.

AIT Services GmbH

Since 2014 · 1–10 empl.·4.1(8)

The core activity of AIT Services GmbH is the preparation of US tax returns and the consulting of individuals living in Switzerland, Germany or France, but who are taxable in the USA, particularly expats, business owners and investors.

STREMA Treuhand AG

Since 2000 · 1–10 empl.·5.0(1)

Zumstein Treuhand

Since 1978 · 1–10 empl.·5.0(1)

The core activity of "Zumstein Treuhand" is the provision of services in the areas of corporate consulting, accounting, and administration. Specifically, this includes: accounting with EDV for SMEs, company valuations, corporate restructuring, creation of business plans, contract management (creation of contracts such as loan and credit agreements, franchise agreements, etc.), personnel administration (payroll and salary calculations), and corporate consulting (advice on company formations, liquidations, changes in the board of directors, etc.). The company thus offers a comprehensive range of services for businesses to support them in their administration, accounting, and strategic decision-making.

Lisa Mathiesen, Buchhaltungen f. KMU und Handwerksbetriebe

Since 2014 · 1–10 empl.

Treuhand Stratz GmbH

Since 2018 · 1–10 empl.

Hatalla Tax

Since 2024 · 1–10 empl.