Fiduciary Offices in
Romanshorn
18 companies in Fiduciary Offices based in Romanshorn — name and year of registration from the commercial register. The list below shows them all.
All 18 companies in Romanshorn

Provida Treuhand AG
Since 1986 · 51–100 empl.5.0(1)
The Provida Trust AG in Romanshorn supports companies and organizations with their day-to-day administrative and financial tasks. Its offerings include accounting, bookkeeping, annual financial statements, closing advice, personnel administration, payroll accounting and labor-law topics, consulting and sparring partners for companies, management and interim solutions. It relieves its clients of day-to-day operations and assists them in preparing financial and management information.

PROVIDA AG
Since 1948 · 51–100 empl.5.0(1)
PROVIDA AG offers fiduciary and bookkeeping services, ordinary and limited audits, tax and legal advice as well as management consulting. The range of services includes accounting, payroll accounting, personnel administration, annual financial statements, statutory and specialized audits (including due diligence), tax advisory for companies (SMEs) and individuals, tax analyses to optimize the tax situation, tax representation, as well as guidance on company formation, succession and retirement planning.
Hugentobler & Bühler, AG für Treuhand und Unternehmensberatung
Since 1999 · 21–50 empl.4.6(10)
The core activity of Hugentobler & Bühler AG is the provision of services in the areas of trust and corporate consulting. Specifically, this includes: Financial and accounting, Tax consulting, Corporate consulting, Succession planning, Financial management, and Personnel administration. The company offers these services to small and medium-sized enterprises (SMEs) as well as to private individuals and has many years of professional experience and cross-industry expertise.

Provida Verwaltungs AG
Since 1982 · 51–100 empl.5.0(1)
PROVIDA Verwaltungs AG offers fiduciary and accounting services, ordinary and limited audits, tax and legal consulting as well as management consulting. The service portfolio includes accounting, payroll accounting, personnel administration, annual financial statements, statutory and specialized audits (including due diligence), corporate (SME) and private tax advisory, tax analyses to optimize the tax situation, tax representation, as well as advice on company formation, succession and retirement planning.
Güntzel Immobilientreuhand GmbH
Since 2012 · 1–10 empl.4.2(14)
The core activity of Güntzel Immobilientreuhand GmbH is the provision of services in the field of real estate economics, particularly: real estate sales, real estate valuation, real estate consulting, accompaniment of new construction projects, and establishment of condominium ownership. The company thus offers a comprehensive range of services for private individuals and companies dealing with the purchase, sale or management of real estate.

PROVIDA Wirtschaftsprüfung AG
Since 2004 · 11–20 empl.5.0(1)
The Provida Wirtschaftsprüfung AG in Romanshorn specializes in auditing, statutory auditing, and special auditing services. As an independent audit firm, it supports companies, organizations, and institutions in ordinary and limited audits as well as in other statutory and voluntary examinations. It assesses assets, financial, and earnings positions in a risk-based, efficient, and industry-specific manner. The offering also includes audits of pension institutions and public-law organizations, the design and auditing of internal control systems (ICS), due diligence investigations, expert opinions, and other specific audits.
Sidler Treuhand AG
Since 1991 · 1–10 empl.
The core activity of Sidler Treuhand AG is to provide comprehensive services in the following areas: * Consulting and support for companies and private individuals in business management matters * Accounting, including bookkeeping and financial and accounting services * Tax matters, including tax planning, tax returns and representation before authorities * Personnel administration, including payroll processing and personnel recruitment * Audits, including financial statement audits and reporting * Asset management, including real estate and asset management The company positions itself as a generalist and offers its customers a comprehensive range of services to meet their business management, tax and financial needs.
Bachmann H. Treuhand GmbH
Since 2013 · 1–10 empl.
Bachmann H. Treuhand GmbH provides holistic financial and fiduciary advisory services, including financial planning, tax advice, and pension and insurance consulting. Services also cover mortgage and real estate financing, marital property and inheritance matters, and support for company formation and succession.
Completoplus AG
Since 2019 · 11–20 empl.
Completoplus AG is a service package offering financial and pension planning, retirement and estate planning, tax advisory services, and support for self-employment and business succession. The services are provided in collaboration with the partners Hugentobler & Bühler (treuhand and business consultancy) and WITTWER finanzen‑vorsorge.ch.
ADMICRON GmbH
Since 2018 · 1–10 empl.
The core activity of ADMICRON GmbH is the provision of administrative services, particularly in the areas of accounting, taxes, IT support, and real estate management. The company also offers additional services such as invoicing, payroll management, liquidity planning, and web design.
UnionTax Steuerberatergesellschaft GmbH (CH)
Since 2023 · 21–50 empl.
The core activity of UnionTax is the provision of tax and legal services, particularly in the areas of income tax refunds and child benefit applications in Europe. This also includes representing clients before tax authorities, employers and family funds, as well as providing international legal advice and services.
Romag Treuhand AG
Since 1980 · 1–10 empl.4.0(4)
The core activity of Romag Treuhand AG is the provision of services in the field of trust business, particularly in the areas of: * Accounting and financial statement preparation * Auditing and revision * Tax consulting and tax planning * Payroll and personnel administration * Company formation and consulting * Real estate management The company offers its clients a comprehensive range of services to support and advise them on their financial and legal matters.
Kempter Buchhaltungen GmbH
Since 2014 · 1–10 empl.5.0(2)
The core activity of the company 'Kempter Buchhaltungen GmbH' is the provision of accounting services, including financial consulting, payroll accounting, private accounting, tax consulting and corporate accounting, for small businesses and private individuals in Romanshorn and its surroundings.
VWTI AG
Since 1983 · 1–10 empl.
VENOVEBE IMMOBILIEN AG
Since 2001 · 1–10 empl.
Heinz Brunschweiler & Co.
Since 2008 · 1–10 empl.
Merz Unternehmen Beratungs GmbH
Since 2008 · 1–10 empl.
Awico Consulting GmbH
Since 2015 · 1–10 empl.
Fiduciary Offices in Romanshorn
Fiduciary Offices in the region
Point size by number of companies per place.
Source: commercial register (Zefix) · as of October 11, 2026
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