Fiduciary Offices in
Bülach
33 companies in Fiduciary Offices based in Bülach — name and year of registration from the commercial register. The list below shows them all.
All 33 companies in Bülach
Widmer Treuhand und Steuerberatung
Since 1993 · 11–20 empl.4.1(34)
Widmer Treuhand und Steuerberatung provides fiduciary, tax advisory and real-estate services. The firm serves homeowners, families, private clients, company founders and managing directors, and supports purchase, sale, rental and management of residential and commercial properties.
Koller Treuhand AG
Since 1994 · 11–20 empl.5.0(6)
The core activity of Koller Treuhand AG is the provision of trust services, particularly in the areas of tax consulting, inheritance law, company formation and succession, estate administration, and accounting. The company offers individually tailored solutions for private individuals, companies, and foundations, and has a team of experts with many years of experience in the trust sector.
Trediag GmbH
Since 2006 · 1–10 empl.5.0(12)
The core activity of Trediag GmbH is the provision of trust services, particularly in the areas of: * Accounting * Taxes * Financial accounting * Cash management * Consulting * Pension planning * Financial planning (pension and retirement planning). The company offers these services to support businesses and individuals in managing their finances and fulfilling their tax obligations.
Fiscon Treuhand AG
Since 1988 · 11–20 empl.
The core activity of Fiscon Treuhand AG encompasses the areas of taxes, auditing, business consulting and inheritance law. The company provides advisory and services in these areas to support customers in preserving and protecting their values in a rapidly changing legal and financial landscape.
AOCS GmbH
Since 2003 · 1–10 empl.
The core activity of AOCS GmbH is to provide services to small and medium-sized enterprises (SMEs) in the following areas: accounting (controlling), human resources administration (HR), customer data management (CRM), software solutions for SMEs and private individuals (EDP, IT), and process and change management. The company thus offers a wide range of services aimed at supporting SMEs in managing and optimizing their business processes.
SP Accounting GmbH
Since 2016 · 1–10 empl.
The core activity of SP Accounting GmbH is to provide financial management and accounting services to small and medium-sized enterprises in Switzerland. This includes in particular: accounting, value-added tax, payroll, property management, and taxes. The company offers individual solutions to relieve customers in these areas and enable them to focus on their core business.
Büchi Treuhand & Immobilien AG
Since 2014 · 1–10 empl.
Trevag Treuhand- und Verwaltungs-AG Bülach
Since 1972 · 11–20 empl.3.7(10)
The core activity of TREVAG Treuhand- und Verwaltungs AG is the provision of services in the field of trust and administration, particularly in the areas of: accounting, payroll, tax consulting, financial management, company formation, succession planning, inheritance, administration, sales, and valuation. In addition, the company also offers specialized services in the field of real estate management, including: condominium ownership, rental properties, commercial properties, real estate valuation, and real estate sales. The company positions itself as a reliable and expert partner for companies and individuals who require comprehensive and professional advice and support in the aforementioned areas.
Guyer Treuhand
Since 2017 · 1–10 empl.
Guyer Treuhand provides fiduciary and advisory services for private clients, self-employed persons and legal entities. The company focuses in particular on tax matters and on support for agricultural businesses.
Doris Graf Treuhand
Since 2013 · 1–10 empl.4.3(11)
The core activity of Doris Graf Treuhand is the provision of services in the field of finance and accounting, particularly in the areas of: accounting, payroll and personnel management, tax returns and tax consulting, corporate consulting, auditing and revision. The company also offers additional services such as value-added tax accounting, start-up consulting and matrimonial and inheritance law.
On Point Treuhand AG
Since 1991 · 1–10 empl.5.0(2)
The core activity of OnPoint Treuhand AG is the provision of services in the areas of accounting, financial reporting, taxes, corporate consulting, payroll administration and corporate valuation for companies and private clients.
Larix Treuhand GmbH
Since 2023 · 1–10 empl.
Larix Treuhand GmbH provides tax advisory, financial accounting, business consulting and payroll/social‑insurance services for companies and private clients. Services include tax declarations and representation before tax authorities, VAT advice, bookkeeping, interim and annual accounts, payroll processing and support for company formations and liquidations.
Ruffieux Treuhand und Revision AG
Since 1973 · 1–10 empl.5.0(1)
Ruffieux Treuhand und Revision AG provides fiduciary and audit services, performing bookkeeping, preparation of financial statements and controlling tasks. The firm also offers tax advice and tax filings (including VAT), payroll and personnel administration, and general business consulting such as company formation, business plans, restructuring, property accounting and debt collection.
Roger Ruffieux Treuhand
Since 1998 · 1–10 empl.5.0(1)
Roger Ruffieux Treuhand provides fiduciary and accounting services, including bookkeeping, preparation of financial statements and controlling, and payroll administration. The firm also offers audit services (statutory and special examinations), tax consulting and general business advisory such as company formation, business plans, restructuring and property accounting.
Erbrechtsberatung Rickli
Since 2024 · 1–10 empl.5.0(4)
The company's core activity is inheritance law consulting, in particular advising and supporting clients with inheritance division, estate planning, advance directives and living wills.
Ferris Lucy Böhi Treuhand & Vorsorge GmbH
Since 2026 · 1–10 empl.
Ferris Lucy Böhi Treuhand & Vorsorge GmbH provides fiduciary and pension advisory services for private individuals, self-employed clients and SMEs. Its services include financial accounting, payroll administration, tax support, financial matters and pension analysis.
CoreTrust Treuhand GmbH
Since 2026 · 1–10 empl.
CoreTrust Treuhand GmbH provides fiduciary services for startups, SMEs, growing businesses and private individuals. Its services include accounting and payroll, tax returns, company formation, business consulting, and financial and retirement planning.
finates GmbH
Since 2005 · 1–10 empl.
finates GmbH provides office services for small and medium-sized enterprises, including finance and payroll accounting, VAT and tax filings, HR administration and insurance portfolio management. The company also delivers consulting services such as business process optimization, business process outsourcing, IT digitization, project management, RFPs/benchmarking and support for market entry and sourcing in Asian markets.
Vinetas AG
Since 2013 · 1–10 empl.
Treuhandbüro Beck
Since 1999 · 1–10 empl.
CR Trust Consulting GmbH
Since 2004 · 1–10 empl.
Günthard Treuhand & Unternehmensberatung
Since 2004 · 1–10 empl.
KaiMa GmbH
Since 2012 · 1–10 empl.
EvMir GmbH
Since 2017 · 1–10 empl.
AKS Consulting AG
Since 2020 · 1–10 empl.
Quantum Beteiligungen AG
Since 2021 · 1–10 empl.
Klose Treuhand GmbH
Since 2022 · 1–10 empl.
Bülach - Treuhand, Susanne Uzun
Since 2023 · 1–10 empl.
Rüegg Treuhand + Interim Management GmbH
Since 2023 · 1–10 empl.
SUNA Susanne Weber
Since 2024 · 1–10 empl.
Treuhand WU
Since 2025 · 1–10 empl.
Lema Consulting GmbH
Since 2025 · 1–10 empl.
Widmer Partner Treuhand und Immobilien AG
Since 2025 · 1–10 empl.
Fiduciary Offices in Bülach
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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