About

Hikmet Ayan is a certified public accountant with 15 years’ experience in auditing, business management and accounting and tax advisory services. He assists our clients with accounting and tax issues, mainly in the Fribourg region.

Charles Berney has several decades of experience. He is regularly called upon for his knowledge of the region’s economic fabric and for his expertise and experience, particularly with regard to strategy, company transfer issues and corporate governance.

A licensed auditor, certified public accountant and HEC graduate from the University of St Gallen, Frédéric Berney acquired extensive experience in auditing, advisory, corporate finance and corporate governance in Geneva and Zurich.

Thanks to his experience and the quality of the relationships he has built over time with his clients, Laurent Berney has developed an analytical spirit which enables him to take a balanced approach to all aspects of a business and the people who manage it.

Accounting department manager

Sébastien Bron, a licensed auditor and certified public accountant, has been advising our clients for more than 20 years. He specialises in accounting and the auditing of corporate and parent-company accounts, subsidised institutions and public entities.

Legal department manager

François Chevalley has substantial experience in the areas of incorporation, real estate, contract law, company law and compulsory enforcement.

Tax department manager

Christian Duc, a qualified tax expert, has been working with our clients for many years in relation to the Swiss taxation system and tax planning and optimisation during corporate restructuring and due diligence projects.

Diplômé HES, Sébastien Germanier est expert-comptable diplômé et expert-réviseur agréé. Depuis près de 20 ans, il conseille une clientèle composée aujourd’hui majoritairement d'entrepreneurs en Valais.

Audit department manager

Gregory Grieb, a licensed auditor and certified public accountant, audits the financial statements of companies operating in the industrial and financial sectors, listed companies, pension institutions and non-profit foundations.

Lausanne branch manager

Claude Heri, who has been auditing the financial statements of industrial, service, parapublic and listed companies for more than 25 years, now oversees the audit department of our Lausanne branch.

The manager of the Expertise & Advisory department, Philippe Joerg has been working with clients for more than 20 years on tax and corporate finance assignments, particularly in the context of appraisals and company transfer issues.

With nearly 15 years’ experience in corporate finance and auditing, Raphaël Leveau mainly works in mergers and acquisitions (buying and selling), business valuation and due diligence.

With nearly 30 years’ experience in auditing and accounting, Franco Luvisotto works on auditing assignments, including for public, parapublic and subsidised institutions.

Cosimo Picci has more than 30 years’ experience in auditing. He specialises in the industrial sector, trading entities and service companies. He coordinates international assignments and is involved in due diligence and expert reports.

Roland Rueff serves as joint manager of the Expertise & Advisory department and manager of the IT department. During his 25 years of experience, he has specialised in executing complex assignments, IT systems auditing and strategy implementation.

Dominique Seydoux is a licensed auditor and certified public accountant with more than 40 years’ experience. He works in the Fribourg region on auditing and accounting and tax management assignments in the context of corporate M&A.

Ivan Sierro has been working with our clients for nearly 40 years in corporate governance. He helps them to address their challenges as entrepreneurs, advises them with regard to financial management, and finds the right solutions for their needs.

Patrick Tyrrell, a graduate of the University of London and a certified enrolled agent, has been working on taxation issues for more than 25 years with a client base mainly composed of expatriates, advising them on how to optimise their situation.

With more than eight years’ experience in human resources, including with multinationals, Diana Veiros has developed skills in personnel management, recruitment and advising on employment law.

A licensed auditor and certified public accountant with a bachelor’s degree in commercial and industrial sciences, Lucien Zanella relies on his many years of experience and his knowledge of business management, tax matters and auditing to advise our clients.