Fiduciary Offices in
Aarau
56 companies in Fiduciary Offices based in Aarau — name and year of registration from the commercial register.
50 of 56 companies
Avadis Finanzpartner AG
Since 2002 · 1–10 empl.4.7(12)
The core activity of Dörig & Partner AG is the provision of financial services, particularly in the areas of financial planning, pension planning, tax planning and succession planning for small and medium-sized enterprises (SMEs) and their owners. The company offers consulting, planning and implementation of financial strategies, pension concepts and tax solutions to enable customers to achieve an optimal financial situation.
Welte Treuhand AG
Since 1987 · 1–10 empl.4.7(7)
The core activity of Welte Treuhand is the provision of services in the areas of accounting, tax consulting, financial accounting, payroll accounting, administration and auditing for companies and private individuals.
thv AG
Since 1958 · 21–50 empl.5.0(2)
thv AG provides fiduciary services, statutory and voluntary audits, business consulting, legal advice and tax consultancy, serving mainly small and medium-sized enterprises and non-profit organisations.
Knaus Treuhand AG
Since 2012 · 11–20 empl.5.0(5)
The company offers comprehensive services for small and medium-sized enterprises (SMEs), including: accounting and financial consulting, tax formalities and consulting, personnel administration, corporate consulting, founding and startup support, succession planning, insurance and pension issues, debt collection procedures, IT and digitalization, inheritance law, controlling and general administrative tasks. The core activity of the company is the comprehensive care and consulting of SMEs in all financial, legal and administrative matters.
Suter Treuhand- und Beratungs AG
Since 1960 · 1–10 empl.
The core activity of Suter Treuhand- und Beratungs AG is the provision of services in the areas of trust, tax consulting, business management and debt collection. The company offers a comprehensive range of services tailored to the individual needs of its clients.
Rudolf Fasler Aarau AG
Since 1990 · 11–20 empl.
The core activity of Rudolf Fasler Aarau AG encompasses three main areas: 1. **Trust Services**: The company provides trust services, including financial accounting, payroll accounting, preparation of annual accounts, payroll administration, VAT declarations, and tax returns. 2. **Estate Liquidations and Consulting**: The company supports the liquidation of estates, including the settlement of estate debts, the distribution of legacies, and the division of the estate according to the instructions of the deceased or as prescribed by law. 3. **Executor Services**: The company offers executor services, including the settlement of estate debts, the distribution of legacies, and the division of the estate according to the instructions of the deceased or as prescribed by law. Overall, the core activity of the company can be described as comprehensive services in the field of estate administration and liquidation, including trust and consulting services.
Steiner plus AG
Since 1992 · 21–50 empl.
The company Steiner+ primarily focuses on architecture, real estate, and trust services. They offer services in these areas and have developed their own process aimed at increasing customer satisfaction.
Ernst & Young AG
Since 1998 · 51–100 empl.
Ernst & Young AG provides assurance (audit), tax, consulting and transaction advisory services, as well as legal, technology, sustainability and managed services to organisations across various industries.
ITERA AG
Since 1999 · 11–20 empl.
ITERA AG is an independent fiduciary firm that provides interdisciplinary services in accounting and financial reporting, controlling, IT, human resources, finance, legal, tax, fiduciary services and auditing.
KSG Kompetenzzentrum für Städte und Gemeinden AG
Since 2001 · 11–20 empl.
KSG Kompetenzzentrum für Städte und Gemeinden AG provides services to the public sector, focusing on advisory work, auditing and temporary staffing. Its offerings include financial and investment planning, cash management, budgeting, cost–performance analyses, organisational reviews, moderation, department leadership and coaching, as well as specialised audits and competence-centre support for specific dossiers.
Acklin & Keusch AG
Since 2002 · 1–10 empl.
The core activity of Acklin & Keusch AG is the provision of services in the areas of auditing, tax consulting, accounting and business consulting for companies. Specifically, this includes: Accounting and administration, Tax consulting, Auditing, Business consulting. The company thus offers comprehensive services for companies in the areas of finance, taxes and corporate management.
EVU Treuhand AG
Since 2011 · 1–10 empl.
The core activity of EVU Treuhand AG is the provision of trust services, particularly in the areas of: accounting and financial reporting, controlling, tax consulting for private and legal entities, audit and financial statement preparation, management and board of directors consulting, support for companies in restructuring, mergers and acquisitions, and financing and investment consulting. The company specializes in meeting the needs of Swiss energy and utility companies as well as small and medium-sized enterprises (SMEs).
SaLü Treuhand AG
Since 2011 · 1–10 empl.
The core activity of Salü Treuhand AG is the provision of trust services, including accounting, tax consulting and other related services.
Atufina AG
Since 2013 · 1–10 empl.
The core activity of Atufina AG encompasses services in the areas of trust, accounting, payroll and social insurance, family office, taxes, as well as project management and interim management. The company also offers specific services such as the implementation of ERP systems, reorganization, restructuring, and business closure.
Rizzo Treuhand GmbH
Since 2014 · 1–10 empl.
The core activity of Rizzo Treuhand GmbH is the provision of services in the areas of financial consulting, tax consulting and trust services. This includes in particular: Trust consulting and support, Tax consulting and planning for private households and companies, Financial consulting and planning, including financial management, Accounting and digital archiving of documents, Co-address service for companies, Support in the founding of companies. The company thus offers comprehensive services in the areas of financial and tax consulting and supports customers in managing their finances and meeting their tax obligations.
hilfiker & partner ag
Since 2015 · 1–10 empl.
The company provides interdisciplinary consulting services in the areas of insurance, pension planning, law, trust and succession planning.
aaretax Treuhand AG
Since 2016 · 1–10 empl.
aaretax Treuhand AG is a fiduciary services firm providing accounting, payroll, tax advisory and audit services. Its services include company formation and restructuring advice, tax planning and VAT support, preparation of financial statements and payroll processing, and conducting limited and voluntary audits.
Treuhandvereinigung AG
Since 1958 · 1–10 empl.5.0(2)
Treuhandvereinigung AG provides services in fiduciary administration, auditing, business consulting, legal advice and tax advisory. The company focuses on supporting SMEs and non-profit organizations.
Realit Treuhand AG
Since 1974 · 11–20 empl.3.5(169)
Realit Treuhand AG provides real estate and fiduciary services, including property management, brokerage, property valuation, project development and construction trust services. Its fiduciary services include tax advice, audit, legal advice, corporate finance and management- and restructuring consulting.
invicto ag
Since 2021 · 1–10 empl.
Presida Treuhand AG Aarau
Since 1975 · 1–10 empl.4.0(4)
Presida Treuhand AG Aarau is an independent fiduciary and information technology company. It provides fiduciary and IT services, operates a data processing centre for handling client mandates and offers payroll outsourcing including the cloud payroll solution E‑Salär with automated employee payments via a cooperation with Raiffeisen.
Wege Consulting GmbH
Since 2021 · 1–10 empl.
The core activity of Wege Consulting GmbH is the consulting of companies in various areas, including project management, succession planning, start-up consulting and digital transformation. The company also offers training and further education opportunities for business leaders to prepare them for the challenges of digitization.
Gruber Partner AG
Since 1986 · 11–20 empl.5.0(1)
The company's core activity is the provision of services in the areas of auditing, fiduciary, tax consulting and planning, business consulting, and legal consulting, particularly for companies, entrepreneurs, public institutions, non-profit organizations, and pension funds.
bilanz&erfolg ag
Since 2004 · 1–10 empl.4.0(1)
bilanz&erfolg ag provides fiduciary and accounting services, including bookkeeping, business plans, financial planning, tax advisory and company valuations. The firm performs efficiency checks, supports ERP implementations and offers property brokerage and property management services.
Leisa Fügli Treuhand
Since 2018 · 1–10 empl.
The core activity of Leisa Fügli Treuhand is the provision of fiduciary services, particularly in the areas of tax returns, accounting and office organization.
kalkor.ch treuhand werner beck
Since 1987 · 1–10 empl.5.0(1)
The core activity of kalkor.ch is the provision of trust services.
RVW Revisions AG
Since 1989 · 1–10 empl.5.0(2)
The core activity of RVW Revisions AG is auditing, in particular conducting special audits, valuations of small and medium-sized enterprises, audits of incorporations, capital increases, capital reductions and liquidations, as well as audits in the context of company takeovers (Due Diligence).
BCO Treuhand AG
Since 2015 · 11–20 empl.5.0(1)
BCO Treuhand AG provides fiduciary and financial services, including accounting, annual financial statements and audits, tax advice, payroll and HR administration, pension and insurance consulting, and asset management and mortgage advice.
Savoy Treuhand AG
Since 2007 · 11–20 empl.5.0(1)
Savoy Treuhand AG provides audit, tax and fiduciary services along with business advisory services for self-employed individuals, small and medium-sized enterprises, and private clients. Services include limited and statutory audits, special audits (e.g., formation, restructurings, mergers, liquidations), accounting, payroll, tax return preparation, VAT filings and financial advisory. The firm is a member of EXPERTsuisse and is a licensed audit expert.
PricewaterhouseCoopers AG
Since 1998 · 51–100 empl.1.0(1)
PricewaterhouseCoopers AG provides audit and assurance services as well as tax, legal and advisory services across areas such as consulting, deals, technology and transformation, sustainability and trust services.
REIST PARTNER AG
Since 1991 · 1–10 empl.5.0(1)
REIST PARTNER AG is a fiduciary services firm offering audit, tax and trust services to small and medium-sized enterprises and private clients. Its services include accounting and WebAccounting, payroll and personnel administration, tax advisory, corporate consulting, board mandates, statutory audits and real estate services.
SRC Christen AG
Since 2011 · 1–10 empl.5.0(1)
SRC Christen AG provides fiduciary and audit services, including limited and statutory audits as well as special examinations. Services include tax consulting and planning, VAT advice, bookkeeping, payroll administration, financial and business consulting, and support for company formation, restructuring, mergers and succession planning.
Unidiversum GmbH
Since 2025 · 1–10 empl.
Unidiversum GmbH offers fiduciary services and digital office services. The website also refers to support for digital workflows and improving a company’s online presence.
Aarekanzlei GmbH
Since 2016 · 1–10 empl.3.7(3)
The core activity of Aarekanzlei GmbH encompasses the provision of services in the areas of trust, real estate, and law. Specifically, the company offers the following services: Trust: Accompanying company formations, supporting the purchase and sale of companies, restructuring companies, company valuations, and succession planning. Real Estate: Sale of properties, management of properties, and administration of condominium owner associations. Law: Legal advice and representation, particularly in the areas of corporate law, real estate law, and inheritance law. The company positions itself as a generalist, offering comprehensive consulting and services, and collaborating with external specialists as needed.
KENDRIS International AG
Since 2025 · 1–10 empl.
KENDRIS International AG is an international consulting and fiduciary firm serving private clients, family offices, entrepreneurs, companies and institutional clients. Its services include trusts, foundations and wealth structuring, corporate services, fiduciary services, legal advice, tax advice, family office services, art management, aviation and yachting, and philanthropy.
KENDRIS Schweiz AG
Since 2025 · 1–10 empl.
KENDRIS Schweiz AG is an international advisory and fiduciary services firm for private individuals, family offices, entrepreneurs, companies, and institutional clients. Its services include fiduciary support, tax advisory, legal advisory, corporate services, family office services, fund solutions, and wealth structuring.
Hanspeter Frischknecht und Partner AG
Since 2001 · 1–10 empl.
ESAG Escrow Services AG
Since 2003 · 1–10 empl.
The core activity of ESAG Escrow Services AG is the provision of escrow services, particularly in the areas of software applications and trust services. This includes the secure deposit of source codes, the management of software licenses, and the provision of trust services for companies and institutions from various industries, such as finance and insurance, healthcare, transportation, and logistics.
elm GmbH
Since 2022 · 1–10 empl.
elm GmbH is a digital fiduciary/accounting office providing bookkeeping, annual financial statements, payroll and personnel administration, and tax advice. The practice focuses on startups, SMEs and non-profit organisations and includes support for digitalisation, automation and business formation advice.
Tewo-Treuhand AG
Since 1991 · 1–10 empl.
Eutag Eugster Treuhand AG
Since 1981 · 1–10 empl.
B & S Treuhand AG
Since 1997 · 1–10 empl.
IT Inter-Trust AG
Since 1997 · 1–10 empl.
KENDRIS Services AG
Since 1999 · 11–20 empl.
Kunath.GmbH
Since 2000 · 1–10 empl.
AWB Revisionen AG
Since 2003 · 1–10 empl.
Erismann Treuhand
Since 2006 · 1–10 empl.
Albatros Treuhand AG
Since 2010 · 1–10 empl.
g+t käser ag
Since 2015 · 1–10 empl.
REFO Trust & Advisory GmbH
Since 2017 · 1–10 empl.
Fiduciary Offices in Aarau
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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