Fiduciary Offices in
Rorschach
28 companies in Fiduciary Offices based in Rorschach — name and year of registration from the commercial register. The list below shows them all.
All 28 companies in Rorschach

Provida Treuhand AG
Since 2014 · 51–100 empl.5.0(2)
Die Provida Treuhand AG in Rorschach supports companies and organisations in ongoing administrative and financial tasks. Its services include accounting, bookkeeping, annual financial statements, closing advice, personnel administration, payroll accounting, and labor-law topics, consulting and sparring partner for companies, management and interim solutions. It relieves its clients in day-to-day business and assists them in preparing financial and management information.
Linth Treuhand AG
Since 1980 · 1–10 empl.
The core activity of Linth Treuhand AG is the provision of trust and audit services, including: financial consulting, accounting, accounting, and auditing. The company offers comprehensive services for companies and individuals to take over administrative tasks and ensure efficient financial management.
Leuzinger Treuhand
Since 1996 · 1–10 empl.
Leuzinger Treuhand provides accounting and fiduciary services, including preparation of tax returns for small businesses, and offers property services such as management of rental properties, establishment and administration of condominium ownership, and brokerage for the purchase and sale of real estate.
stand by - gentina
Since 2005 · 1–10 empl.
stand by - gentina provides trust and financial services, including bookkeeping, accounting, interim and annual financial statements, VAT returns, payroll administration and tax filings for businesses and private clients. The practice also prepares budgets, investment and liquidity planning and assists with negotiations with tax authorities.
Mlejnek Treuhand GmbH
Since 2006 · 1–10 empl.
Mlejnek Treuhand GmbH provides tax and fiduciary services, with an emphasis on tax planning and international tax law. Services include international tax optimisation and location consultancy, payroll, bookkeeping and preparation of company accounts and tax returns, fiscal representation, start-up and liquidation advisory, financial and investment consultancy in cooperation with international banks, project management, and organisational and tax-optimised restructuring.
stand by - gentina GmbH
Since 2006 · 1–10 empl.
stand by - gentina GmbH provides fiduciary and financial services, handling accounting, bookkeeping, payroll and tax filings for small and medium-sized enterprises, sole proprietors and private clients. Services include investment, financial and liquidity planning, budgeting, interim and annual financial statements, VAT returns and payroll settlements.
CONJURIS GmbH
Since 2009 · 1–10 empl.
CONJURIS GmbH is an independent service company offering strategic consulting and tailored support for private households, individuals and SMEs. Services include company formation and start‑up support, legal and administrative advice, trustee- and tax‑related assistance via partner networks, board secretariat mandates and family‑office services.
Artis Treuhand GmbH
Since 2009 · 1–10 empl.
The core activity of Artis Treuhand is the provision of trust services, including: financial accounting, accounts payable, accounts receivable and payroll accounting, annual financial statements, value-added tax and social insurance settlements, tax returns for legal and natural persons, and consulting and support for clients in these areas. The company positions itself as the right-hand man for its clients and supports them to the best of its ability in their financial and tax matters.
AK Treuhand & Steuerberatungs AG
Since 1997 · 1–10 empl.5.0(2)
AK Treuhand & Steuerberatungs AG provides fiduciary and tax advisory services. The firm offers accounting, tax returns, VAT reporting, company formation and tax consultancy; it also conducts statutory and limited audits (federally accredited audit experts), arranges mezzanine financing and advises on real-estate matters and project development.
AK Verwaltungs GmbH
Since 2003 · 1–10 empl.5.0(2)
AK Verwaltungs GmbH is a fiduciary and tax services firm offering bookkeeping, tax return preparation, VAT filings and support for AG/GmbH formations. Its services also include statutory and limited audits, real-estate advisory and arranging mezzanine financing.
GSP Treuhand AG
Since 1985 · 1–10 empl.3.7(3)
The core activity of GSP Treuhand AG is the provision of services in the field of trust business, in particular: accounting and financial reporting, payroll accounting and payroll administration, auditing and revision, tax consulting and tax returns, legal consulting and business consulting, administration and outsourcing. The company offers these services to both small and medium-sized enterprises (SMEs) and private individuals.
Bösch Treuhand AG
Since 2021 · 1–10 empl.4.3(7)
Bösch Treuhand AG provides fiduciary and advisory services for small businesses and private individuals. Services include tax advice, financial and payroll accounting, preparation of annual financial statements, administrative support, assistance with company formations and individual revision (audit) services.
Proxista Treuhand AG
Since 1976 · 1–10 empl.
The core activity of Proxista Treuhand AG is the provision of services in the field of finance and administration, particularly in the areas of accounting, taxes, fiduciary services and real estate management.
OK. Oehrli Kurt
Since 2014 · 1–10 empl.
The company's core activity is providing services in the field of tax consulting and planning, including the preparation of tax returns, tax concepts and savings, as well as supporting communication with tax authorities and clarifying tax-related concerns.
LÜCHINGER + PARTNER AG
Since 1994 · 1–10 empl.
F + A Treuhand GmbH
Since 2021 · 1–10 empl.
The core activity of F+A Treuhand is the provision of services in the field of finance and accounting, particularly in the areas of payroll accounting, accounting, tax optimization, and company formation. The company provides its customers with comprehensive financial guidance and supports them in managing their finances, enabling them to focus on their core processes.
Treuhandel AG
Since 1990 · 1–10 empl.
revisio treuhand gmbh
Since 2011 · 1–10 empl.
M. Leuzinger GmbH
Since 2012 · 1–10 empl.
Mobecg GmbH
Since 2015 · 1–10 empl.
Dunacon GmbH
Since 2015 · 1–10 empl.
Linth Steuerberatung AG
Since 2016 · 1–10 empl.
TE Treuhand Experten AG
Since 2020 · 1–10 empl.
Leo Betschart
Since 2022 · 1–10 empl.
FLOGA Unternehmensberatung GmbH
Since 2023 · 1–10 empl.
Aria Treuhand GmbH
Since 2025 · 1–10 empl.
Tim Greenawalt
Since 2025 · 1–10 empl.
HOFA Accounting GmbH
Since 2026 · 1–10 empl.
Fiduciary Offices in Rorschach
Fiduciary Offices in the region
Point size by number of companies per place.
Source: commercial register (Zefix) · as of October 10, 2026
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