Fiduciary Offices in the
Canton of Solothurn
364 companies in Fiduciary Offices based in the Canton of Solothurn — name and year of registration from the commercial register.
50 of 364 companies
Kneubühler Finanz GmbH
Since 2005 · 1–10 empl.4.9(82)
The core activity of Kneubühler Finanz GmbH is holistic and independent financial consulting, including tax returns, insurance management, trust, financial planning, mortgage financing, asset management, savings, taxes, health insurance, insurance, real estate and capital investment advice.
Gerhard & Partner GmbH
Since 2023 · 1–10 empl.5.0(158)
The core activity of Gerhard & Partner is the provision of trust services, particularly in the areas of accounting, personnel management, company formations and process optimization. The company offers its customers individual solutions and consulting in these areas to optimize their financial situation and provide them with financial security and freedom.
Schöni Treuhand GmbH
Since 2017 · 1–10 empl.5.0(33)
The core activity of Schöni Treuhand GmbH is the provision of trust services, in particular: tax returns and tax consulting, financial and accounting services, including accounting and VAT, as well as consulting and support for small and medium-sized enterprises in all trust-related matters. The company offers individual solutions tailored to the needs of its clients, relying on expertise, long-standing experience, and modern software technology.
Lemag Treuhand+Partner AG
Since 1998 · 1–10 empl.5.0(7)
Lemag Treuhand+Partner AG is a fiduciary and advisory firm offering bookkeeping and payroll services, statutory audit, tax consulting, corporate advisory, software support and outsourcing. The firm is registered with the Swiss Federal Audit Oversight Authority as an audit firm and is a recommended partner of FMH Services Genossenschaft.
Bussmann & Frey AG
Since 1999 · 11–20 empl.4.9(9)
The core activity of Bussmann & Frey AG encompasses two main areas: 1. **Trust Services**: The company provides trust services, including accounting, financial statement consulting, tax consulting, and general business consulting. 2. **Real Estate**: Bussmann & Frey AG is also active in the real estate sector, offering services such as brokerage and sale of properties, traffic value appraisals, management of rental properties, renting and buying of properties.
KMU Treuhandpartner AG Luterbach
Since 1988 · 11–20 empl.5.0(5)
KMU Treuhandpartner AG Luterbach provides fiduciary and tax services as well as digital accounting (Abacus), audit services, business consulting, IT solutions and insurance brokering.
Finsafe AG
Since 2018 · 1–10 empl.5.0(24)
The core activity of FINSAFE is the provision of services in the field of corporate consulting, particularly in the areas of: * Accounting and trust services * Company valuation * Due diligence * Controlling and monitoring * Budgeting and scenario planning * Support for company acquisitions and sales (M&A consulting) The company offers tailored solutions for small and medium-sized enterprises (SMEs) and supports them in optimizing their business processes, increasing their company value, and successfully acquiring or selling companies.
Gribi & Partner AG
Since 1990 · 11–20 empl.4.3(6)
The core activity of Gribi & Partner AG is the provision of consulting services for companies and private individuals in the areas of tax consulting, auditing, trust and corporate consulting, international succession planning, company valuation and value-added tax consulting as well as fiscal representation.
sol-tax treuhand GmbH
Since 2002 · 11–20 empl.4.1(10)
The core activity of sol-tax treuhand gmbh is the provision of services in the areas of trust, taxes, consulting, accounting, and real estate. Specifically, this includes: accounting and financial accounting, tax consulting and planning, trust services, including bookkeeping and financial reporting, consulting in business and legal matters, real estate management, and the application of specific software solutions such as BusPro. The company positions itself as a competent and personal partner for its clients, cultivating long-term relationships and offering individual solutions.
Berntor Beratung GmbH
Since 2005 · 11–20 empl.4.4(8)
The core activity of the company 'Berntor Beratung GmbH' is independent financial consulting and planning for private individuals and companies. The services include, among others: tax declaration and tax planning, financial planning and asset consulting, insurance consulting and brokerage, trust and accounting, pension planning and provision dossier, health insurance and social security consulting. The company provides comprehensive care and consulting in all financial matters and supports customers in planning and implementing their financial goals.
Legatax Bertschi AG
Since 2000 · 1–10 empl.4.6(12)
The core activity of Legatax Bertschi AG is the provision of trust services, including accounting, annual financial statements, audits, tax returns and consulting. The company also offers digital solutions such as online accounting software and performs digital audits.
bonainvest Management AG
Since 1993 · 21–50 empl.5.0(3)
The core activity of Bracher and Partner AG encompasses the areas of real estate marketing and brokerage, trust services, business consulting, and accounting. Specifically, the company offers services such as real estate sales and rentals, financial and payroll accounting, tax consulting, company formation and consulting, as well as project management and construction planning.
Bally Finance GmbH
Since 2019 · 1–10 empl.5.0(10)
The core activity of Bally Finance is the provision of trust services, in particular accounting, financial analysis, incorporation, transformation and liquidation of companies, as well as administrative support and personnel placement.
emas Treuhand GmbH
Since 2021 · 1–10 empl.5.0(11)
The core activity of emas Treuhand GmbH is the provision of services in the field of trust services, particularly in the areas of: * Accounting: assumption of accounting tasks for companies and private individuals * Taxes: handling of tax matters, including the preparation of tax returns * Auditing: conducting audits and examinations of companies * Consulting: advising companies and private individuals in all areas of trust services and finance The company thus offers comprehensive services in the field of financial management and consulting.

vitreva ag
Since 2022 · 1–10 empl.
Die vitreva ag is your reliable trustee partner in Solothurn for individuals, SMEs and medical practices. We combine personal advice with AI-assisted bookkeeping: documents are captured automatically and reviewed by our experts – efficient, precise and always up to date. Trustee: accounting, taxes and business consulting Personnel: payroll accounting and social insurances Medical practice: medical controlling and practice administration for solo, group and joint practices Trustee, taxes and HR from one source – with specialized knowledge for the health care sector. More time for your core business, we take care of the rest.
Villiger Treuhand AG
Since 1972 · 11–20 empl.
The core activity of Villiger Treuhand AG is the provision of trust services, particularly in the areas of: * Accounting * Auditing * Tax consulting * Business consulting * Real estate management and sales Thus, the company offers comprehensive consulting and services for companies and private individuals in the areas of finance, taxes, and real estate.
HTO Treuhand AG
Since 1980 · 11–20 empl.
The core activity of HTO Treuhand AG is the provision of services in the field of trust services, particularly in the areas of corporate consulting, tax consulting, accounting, auditing, and administrative tasks. The company offers these services to both small and medium-sized enterprises (SMEs) and private individuals. The core activity thus encompasses comprehensive support and consulting for clients in all matters related to trust services, business economics, and tax law.
watermarks group ag
Since 1983 · 1–10 empl.
watermarks group ag provides financial planning, SME advisory, trust and accounting services, and real estate services. Offerings include bookkeeping and payroll administration, pension and succession advice, and property management.
FISTRA AG
Since 1984 · 21–50 empl.
The core activity of FISTRA AG is the provision of services in the following areas: accounting/bookkeeping, payroll accounting, auditing, tax consulting, business consulting, and general legal advice. The company positions itself as a trust company, offering a wide range of services for companies and private individuals specializing in finance, accounting, and legal consulting.
Biber Treuhand AG
Since 1989 · 1–10 empl.
The core activity of Biber Treuhand AG encompasses the provision of trust services, particularly in the areas of: * Tax and legal consulting, including company formation and restructuring * Corporate consulting and controlling * Inheritance law and succession planning * Pension and financial planning * Domiciliary and secretarial services for companies Thus, the company offers a comprehensive range of services for companies and private individuals focused on the management and planning of assets, companies, and estates.
TRESO Treuhand AG
Since 1990 · 11–20 empl.
The core activity of TRESO Treuhand AG is the provision of services in the fields of trust, accounting, and taxation, as well as auditing. Specifically, this includes: trust services, including merger and acquisition consulting, inheritance law and estate administration, company formation, purchase and sale, and succession planning; tax consulting, both nationally and internationally, withholding tax declarations, VAT consulting and declarations, as well as VAT representation for foreign companies; accounting services, including payroll and personnel administration, outsourcing of accounting, and consulting on financial statement preparation; and auditing, including annual financial statement audits, voluntary audits, special audits, and formation/conversion audits.
Areta Revisions AG
Since 1992 · 1–10 empl.
The core activity of Areta Revisions AG is the provision of services in the fields of accounting, taxes, auditing and consulting, particularly for small and medium-sized enterprises as well as private individuals in the cantons of Solothurn and Aargau.
Emmenegger Fides AG
Since 1992 · 11–20 empl.
The core activity of Emmenegger Fides AG is the provision of services in the following areas: accounting and financial reporting, auditing, tax consulting, and business consulting. The company acts as a trust specialist and provides its clients with individual advice and support in these areas, helping them to achieve their entrepreneurial and economic goals.
FM-Treuhand Ferdinand Müller
Since 1994 · 1–10 empl.
FM-Treuhand Ferdinand Müller provides fiduciary services including bookkeeping, annual financial statements, and tax advisory. The firm also advises on company formation, payroll administration, VAT filings and bookkeeping software.
Schmid Immobilientreuhand
Since 1996 · 1–10 empl.
The core activity of Schmid Immobilentreuhand is the provision of services in the field of real estate, including property management, brokerage and consulting.
Sofista Treuhand & Partner AG
Since 1996 · 1–10 empl.
Sofista Treuhand & Partner AG provides fiduciary, tax and audit services as well as property management and real estate sales. Services include tax advice and tax return preparation, limited statutory audits as audit experts authorised by the Swiss Federal Audit Oversight Authority, CFO replacement and financial management, business valuations and succession advice; all services are reviewed by the company’s CEO and the firm is a member of EXPERTSuisse and TREUHANDSuisse.
Canonica Treuhand GmbH
Since 1996 · 1–10 empl.
The core activity of Canonica Treuhand GmbH encompasses the provision of services in the following areas: accounting, tax consulting, personnel administration, and real estate management. The company offers comprehensive and high-quality services to small businesses, sole proprietorships, and private individuals, with the goal of providing personalized, reliable, and individualized support to its clients.
FM-TREUHAND GMBH
Since 1998 · 1–10 empl.
FM-TREUHAND GMBH provides fiduciary services including bookkeeping, preparation of interim and annual financial statements, and tax consulting including VAT reporting. Services also include advice on company formation, payroll administration, accounting software and social insurance matters.
Schenker & Partner AG
Since 1999 · 11–20 empl.
The company's core activity is the provision of services in the fields of auditing, tax consulting, business consulting, financial consulting and accounting, particularly for small and medium-sized enterprises (SMEs). This also includes specialized services such as auditing, annual financial statement reviews, tax planning, financial solutions and ERP solutions.
Sofista Treuhand & Partner AG, Zweigniederlassung Oberbuchsiten
Since 1999 · 1–10 empl.
Sofista Treuhand & Partner AG, Zweigniederlassung Oberbuchsiten provides fiduciary, tax and audit services as well as property management and real estate sales. Services listed on the website include bookkeeping, VAT handling, tax returns, pension advice, valuations and financial management coaching.
von büren treuhand gmbh
Since 2000 · 1–10 empl.
The core activity of the company "Büren Treuhand" encompasses services in the field of financial and corporate consulting, including accounting, financial statements, tax consulting, administration and corporate consulting.
Veledes Treuhand Däniken AG
Since 2000 · 1–10 empl.
The core activity of Veledes Treuhand Däniken AG is the provision of services in the areas of finance and accounting, payroll accounting, taxes and corporate consulting, as well as the administration of condominium ownership and real estate for small and medium-sized enterprises (SMEs), self-employed individuals, condominium owner associations and private individuals.
Forensis Treuhand AG
Since 2001 · 11–20 empl.
The core activity of Forensis Treuhand AG encompasses the provision of services in the areas of tax consulting, trust services, business consulting, and auditing. Specifically, the company offers the following services: tax consulting for companies and individuals, including tax planning, tax deductions, and representation before tax authorities; trust services, such as accounting, personnel and payroll management, as well as representation; business consulting, including succession planning, mergers and acquisitions, and real estate consulting; and auditing, including the review and examination of companies. The company offers its services both nationally and internationally and has branches in Olten and Zurich.
Fazit Beratung & Treuhand AG
Since 2002 · 1–10 empl.
The core activity of Fazit AG is the provision of trust services, particularly in the areas of accounting, taxes, administrative mandates and corporate consulting. The company positions itself as a full-service partner for companies, institutions, organizations and municipalities, offering professional support in the handling of trust matters.
Finanz-Treuhand A-Z GmbH
Since 2002 · 1–10 empl.
The core activity of Finanz-Treuhand A-Z GmbH is the provision of trust services, coaching, interim management and change management.
Nova Treuhand & Consulting GmbH
Since 2002 · 1–10 empl.
Nova Treuhand & Consulting GmbH provides services in fiduciary accounting, property management and real estate sales. Its activities include bookkeeping, financial and payroll accounting, administrative and technical property administration, as well as the marketing and sale of properties.
WÜTHRICH Büro für Verwaltung GmbH
Since 2003 · 1–10 empl.
The core activity of Wüthrich, Büro für Verwaltung GmbH, encompasses three main areas: 1. **Accounting**: Preparation of annual financial statements, balance sheet and profit analyses, as well as management of financial and operational accounting. 2. **Property Management**: Competent and professional management of properties, as well as brokerage and sale of real estate. 3. **Taxes**: Tax consulting, planning and optimization, including correct and timely tax declarations.
leonis Treuhand GmbH
Since 2003 · 1–10 empl.
leonis Treuhand GmbH provides fiduciary and advisory services to SMEs and private clients, including accounting and bookkeeping, outsourcing, payroll administration, tax and legal advice, auditing and property management. Owner Jürg Krebs serves as the main contact and handles client inquiries personally.
Fidutax Treuhand GmbH
Since 2004 · 1–10 empl.
Fidutax Treuhand GmbH is a fiduciary and business advisory firm. It provides accounting, payroll administration, audits, tax and business consulting, company formation, personal tax returns, and succession planning.
Hess Treuhand & Revisions GmbH
Since 2004 · 1–10 empl.
The core activity of Hess Treuhand & Revisions GmbH is the provision of services in the areas of trust, auditing, accounting, and taxation. Specifically, this includes: Trust: assumption of administrative tasks for companies and private individuals Auditing: conducting audits and monitoring of companies and organizations Accounting: management of financial and accounting systems for companies and private individuals Taxation: consulting and representation in tax matters. The company thus offers comprehensive services in the field of finance and accounting to support companies and private individuals in their financial and tax matters.
atrevi GmbH
Since 2005 · 1–10 empl.
The core activity of atrevi GmbH is the provision of tax and corporate consulting services, general trust services, management of customer accounting, incorporation of companies and assumption of audit mandates.
powerTrust gmbh
Since 2005 · 1–10 empl.
The company's core activity is the provision of tax consulting and trust services, including payroll administration and financial consulting, particularly in the institutional sector.
JSP Treuhand GmbH
Since 2005 · 1–10 empl.
JSP Treuhand GmbH provides fiduciary, tax and advisory services. Offerings include bookkeeping and payroll, annual and interim financial statements, tax planning and appeals, as well as property management and brokerage support.
Kissling Treuhand GmbH
Since 2005 · 1–10 empl.
Kissling Treuhand GmbH provides fiduciary, audit and advisory services, including statutory audits, bookkeeping and preparation of financial statements, and tax consultancy. The firm’s offerings also include business consulting and company valuation, financial accounting and controlling, budgeting, outsourcing/temporary replacements and representation before tax authorities.
SCHAFER Dienste GmbH
Since 2006 · 1–10 empl.
SCHAFER Dienste GmbH is not described on the website as a separate company. The website presents the Arbeitskontrollstelle Kanton Solothurn and its activities in labour-market inspections, monitoring wage and working conditions, and reporting suspected violations such as undeclared work.
SPIEGEL TREUHAND AG
Since 2006 · 1–10 empl.
The company's core activity is the provision of trust services, including auditing, business consulting, accounting and tax consulting, particularly for small and medium-sized enterprises (SMEs).
adlatus
Since 2007 · 11–20 empl.
The company adlatus offers business consulting services, particularly for small and medium-sized enterprises (SMEs). The core activities include: Interim Management: adlatus provides experienced managers who can support companies on a temporary basis to fill personnel gaps or overcome specific challenges. Business Consulting: The company offers consulting services in various areas such as finance, taxes, marketing, sales, and succession planning. Coaching: adlatus provides coaching services to support companies in developing and implementing strategies. Startup Consulting: The company offers specific consulting services for startups to support them in overcoming challenges and developing strategies. Overall, adlatus focuses on providing experienced consultants and managers who can support companies in solving challenges and achieving their goals.
PKO Treuhand GmbH
Since 2008 · 1–10 empl.
PKO Treuhand GmbH provides auditing, fiduciary and advisory services for SMEs, municipalities, utilities and non-profit organisations. Offerings include statutory and review audits, bookkeeping and preparation of financial statements, VAT and tax consulting, payroll administration and corporate advisory such as restructurings, conversions and succession planning.
Unico Treuhand Solothurn AG
Since 2009 · 1–10 empl.
The core activity of Unico Treuhand Solothurn AG encompasses the provision of services in the following areas: trust services, tax consulting, corporate consulting, payroll administration, and auditing. The company thus offers comprehensive consulting and services for companies and private individuals in the areas of finance, taxes, and accounting.
Jorns Partner Treuhand AG
Since 2009 · 1–10 empl.
The core activity of CSB-System SE is the development and implementation of industry-specific ERP systems (Enterprise Resource Planning) for the process industries food, beverages, chemicals, pharmaceuticals and cosmetics as well as trade. The company offers software, hardware, services and business consulting from a single source to optimize its customers' business processes and create competitive advantages.
Fiduciary Offices in the Canton of Solothurn
Fiduciary Offices in the region
Point size by number of companies per place.
Source: commercial register (Zefix) · as of October 12, 2026
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