Fiduciary Offices

Office Consultant Société Fiduciaire SA 

Geneva · Since 2003

Office Consultant Société Fiduciaire SA provides fiduciary, accounting and tax services to small and medium-sized enterprises and private clients, including payroll and HR administration, VAT and tax filings, domiciliation and support for company formation and succession.

Office for you GmbH 

Zollikofen · Since 2023

The core activity of the company "Office for you GmbH" is the provision of virtual assistance services, particularly in the areas of: * Office tasks (e.g. research, data entry, scheduling, calendar management) * Accounting (e.g. preparatory accounting, accounts receivable, accounts payable, collection) * Events (e.g. organization of events, sending invitations, maintenance of participant lists) * E-commerce (e.g. product research, contacting manufacturers, sample requests, product orders) * Customer service (e.g. answering e-mails, handling complaints and returns) The company thus offers a wide range of services aimed at supporting businesses in managing and organizing their daily tasks.

OFFIGEST Associés SARL 

Geneva · Since 2007

The company's core activity is the provision of services in the field of finance and accounting, in particular: accounting and financial reporting (including balance sheets and income statements), tax consulting and declarations for individuals and companies, budgeting and financial planning, payroll management and salary accounting, and support in company formation and financing. The company positions itself as a fiduciary for trading companies, craftsmen, and SMEs.

Révi-Neuch SA, société de révision 

Cortaillod · Since 1989

Révi-Neuch SA, société de révision is an accredited expert auditor offering statutory and limited‑scope financial audits and account reviews for companies, municipalities and other institutions.

OGH expertises comptables et fiscales SA 

Geneva · Since 1993

The core activity of OGH Expertise Comptable et Fiscales SA is the provision of services in the field of accounting and taxation, particularly in expertise and consulting for companies and individuals in these areas.

Ogi Treuhand AG 

Bern · Since 2024

Ogi Treuhand AG provides fiduciary and advisory services to businesses and private clients, including financial accounting, payroll, tax consulting, company formation, succession planning and restructuring. The firm also offers management accounting and financial planning services, retirement provision advice and a registered office/address service.

Ogisa SA 

Châtel-St-Denis · Since 1985

Ogisa SA is a fiduciary firm providing accounting, payroll, tax and business management services. Its offerings include bookkeeping, payroll administration, VAT and tax filings, corporate advisory and support for software such as Winbiz, Crésus and Megasoftware.

OK. Oehrli Kurt 

Rorschach · Since 2014

The company's core activity is providing services in the field of tax consulting and planning, including the preparation of tax returns, tax concepts and savings, as well as supporting communication with tax authorities and clarifying tax-related concerns.

OLEXCO SA 

Geneva · Since 2004

The core activity of Olexco SA is the provision of financial, legal and tax advisory services, including company formation, trust administration, accounting, tax planning and declaration, as well as escrow management and family office services.

Oltreu GmbH 

Olten · Since 2019

The core activity of Oltreu GmbH is the provision of services in the areas of auditing, corporate consulting, accounting, financial reporting and taxation.

OMEFID TREUHAND AG 

Kilchberg Zh · Since 1987

The core activity of Omefid Treuhand AG is the provision of trust services, particularly in the areas of accounting and taxation, auditing and legal advice, succession and estate administration, and secretarial work. The company offers its clients a comprehensive range of services to support and relieve them in administrative and legal matters.

Omiron Treuhand & Consulting GmbH 

Baar · Since 2019

The core activity of Omiron is the provision of trust and consulting services for small and medium-sized enterprises, private individuals, foundations and associations. This includes in particular: accounting and annual financial statements, tax returns for natural and legal persons, payroll and HR administration, financial planning and consulting, property management and sales, restructuring, insurance issues and IT support. The company offers tailored solutions and places great emphasis on the continuous training and further education of its employees.

Omnitax AG Wirtschafts- und Steuerrecht 

Biel/Bienne · Since 1958

The company's core activity is tax and legal consulting for companies and individuals, including taxation, VAT consulting and legal advice.

Ondora SARL 

Belmont-Sur-Lausanne · Since 2010

Ondora SARL provides accounting services for small and medium-sized companies, covering tasks from invoice processing and general bookkeeping to controlling, management reporting and tax return preparation. The firm processes data remotely via cloud systems or client-server connections and its teams in Great Britain and Switzerland are supported by a team in India.

OneFid Sàrl 

St-Prex · Since 2018

Onestra AG 

Hünenberg · Since 1999

Onestra AG provides fiduciary, tax advisory and audit services to companies and private clients. Its services include accounting and payroll administration, administrative support and shared-office solutions, web-based bookkeeping via AbaWeb, tax and social insurance advice, and corporate and legal consulting. The firm is a registered audit expert (RAB) and conducts audit and special review engagements for capital companies.

Oneweek & Co. Sàrl 

Lausanne · Since 2009

The core activity of oneweek.ch encompasses services in the areas of accounting, taxation and human resources.

Ongresso Consulting GmbH 

Appenzell · Since 2010

Ongresso Consulting GmbH provides HR, corporate and advisory services to support international companies expanding into Latin America. Services include PEO/EOR, recruiting and payroll, company formation, accounting, tax and compliance support, and market-entry advisory.

OPEKTUM AG 

Zurich · Since 2023

The core activity of OPEKTUM is to support and develop small to medium-sized service companies in German-speaking Switzerland by structuring, digitalizing and building them up as part of corporate groups. Specifically, this includes the takeover and further development of companies, the founding of corporate groups (such as the PEKTOPROP group in facility management) and the provision of management services as a management company.

OPES AG 

Emmenbrücke · Since 2012

OPES AG provides advisory, audit and support services for families and businesses, offering expertise in corporate consulting, tax, accounting and financial reporting, auditing, legal matters, family business services and HR services.