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.

Companies

All 33 companies in Bülach

Widmer Treuhand und Steuerberatung Logo

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.

Fiduciary OfficesTax advisory servicesAccounting servicesCompany formations
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #1
Koller Treuhand AG Logo

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.

Fiduciary OfficesFiduciary servicesAccountingTax returns
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #2
Trediag GmbH Logo

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.

Management ConsultingAccounting and Consulting ServicesTAX ServicesAdvisory Services
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #3
Fiscon Treuhand AG Logo

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.

Fiduciary OfficesTax consultingManagement consultingAccounting and audit
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #4
AOCS GmbH Logo

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.

Management ConsultingAccounting / BookkeepingPersonnel Administration (HR)Customer Data Management (CRM)
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #5
SP Accounting GmbH Logo

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.

Fiduciary OfficesAccountingPayroll & HRTaxes
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #6
Büchi Treuhand & Immobilien AG Logo

Büchi Treuhand & Immobilien AG

Since 2014 · 1–10 empl.

Fiduciary Offices
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #7
Trevag Treuhand- und Verwaltungs-AG Bülach Logo

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.

Fiduciary OfficesAccounting / closing advisoryTax advisoryPayroll
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #8
Guyer Treuhand Logo

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.

Fiduciary OfficesBookkeeping and annual financial statementsTax advisory and tax returnsBusiness consulting and company formation advisory
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #9
Doris Graf Treuhand Logo

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.

Fiduciary OfficesFinance and accountingPayroll and personnel administrationTax returns and tax consulting
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #10
On Point Treuhand AG Logo

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.

Fiduciary OfficesBookkeepingPayroll & HR AdministrationTax Advisory
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #11
Larix Treuhand GmbH Logo

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.

Fiduciary OfficesTax advisoryFinancial accountingBusiness consulting
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #12
Ruffieux Treuhand und Revision AG Logo

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.

Fiduciary OfficesBookkeeping and annual reporting / ControllingAuditTax advice and tax returns
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #13
Roger Ruffieux Treuhand Logo

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.

Fiduciary OfficesBookkeeping and financial statements / ControllingTax advisory and tax declarationsHR and payroll administration
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #14
Erbrechtsberatung Rickli Logo

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.

Fiduciary OfficesEstate planningInheritance division and estate administrationAdvance care mandate
ranQ Trust Score 3.7 out of 5.0, rated Solid, Rank #15
Ferris Lucy Böhi Treuhand & Vorsorge GmbH Logo

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.

Management ConsultingFinancial AccountingPayroll AdministrationCorporate Tax Services
ranQ Trust Score 3.4 out of 5.0, rated Solid, Rank #16
CoreTrust Treuhand GmbH Logo

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.

Management ConsultingAccounting and payroll accountingTax returnsCompany formation
ranQ Trust Score 3.4 out of 5.0, rated Solid, Rank #17
finates GmbH Logo

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.

Fiduciary OfficesAccounting and bookkeepingPayroll administration and personnel managementRecruitment and staff placement
No score yet
Vinetas AG Logo

Vinetas AG

Since 2013 · 1–10 empl.

Fiduciary Offices
No score yet
TB

Treuhandbüro Beck

Since 1999 · 1–10 empl.

Fiduciary Offices
No score yet
CT

CR Trust Consulting GmbH

Since 2004 · 1–10 empl.

Fiduciary Offices
No score yet
GT

Günthard Treuhand & Unternehmensberatung

Since 2004 · 1–10 empl.

Fiduciary Offices
No score yet
KG

KaiMa GmbH

Since 2012 · 1–10 empl.

Fiduciary Offices
No score yet
EG

EvMir GmbH

Since 2017 · 1–10 empl.

Fiduciary Offices
No score yet
AC

AKS Consulting AG

Since 2020 · 1–10 empl.

Fiduciary Offices
No score yet
QB

Quantum Beteiligungen AG

Since 2021 · 1–10 empl.

Management Consulting
No score yet
KT

Klose Treuhand GmbH

Since 2022 · 1–10 empl.

Fiduciary Offices
No score yet
B-

Bülach - Treuhand, Susanne Uzun

Since 2023 · 1–10 empl.

Fiduciary Offices
No score yet
RT

Rüegg Treuhand + Interim Management GmbH

Since 2023 · 1–10 empl.

Management Consulting
No score yet
SS

SUNA Susanne Weber

Since 2024 · 1–10 empl.

Recruitment & HR Consulting
No score yet
TW

Treuhand WU

Since 2025 · 1–10 empl.

Fiduciary Offices
No score yet
LC

Lema Consulting GmbH

Since 2025 · 1–10 empl.

Fiduciary Offices
No score yet
WP

Widmer Partner Treuhand und Immobilien AG

Since 2025 · 1–10 empl.

Fiduciary Offices
No score yet

Fiduciary Offices in Bülach

33Fiduciary OfficesCommercial register (Zefix) · as of October 10, 2026
2014Median year of registrationCommercial register (Zefix) · as of October 10, 2026
3,244in the Canton of ZurichCommercial register (Zefix) · as of October 10, 2026
17,182in SwitzerlandCommercial register (Zefix) · as of October 10, 2026
Locations

Fiduciary Offices in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of October 10, 2026