History
From the beginning to today

1990
Berney Conseil SA is founded by Charles Berney, a qualified chartered accountant.
First offices at 21, Rue du Clos aux Eaux-vives.

2025
Berney Associés joins forces with fiduciary Alteris Léman and sets up in Nyon to strengthen its presence in the Lake Geneva region.
The whole history of Berney Associés
1990
Creation of Berney Conseil SA by Charles Berney, chartered accountant
First offices at 21, Rue du Clos aux Eaux-vives
1993
Incorporation of Berney & Associés SA, Société Fiduciaire
Move to 8, Rue du Nant, Eaux-vives
Laurent Berney officially joins the company
1998
Acquisition of a majority stake in Gerofid SA, a company founded in 1972 by Roger Siffert
Lucien Zanella, qualified chartered accountant, joins the Group
2002
Frédéric Berney joins the company and becomes a qualified chartered accountant in 2005.
Acquisition of a majority stake in Firel & Mandaco SA, a company founded in 1962 and based in Lausanne and Geneva
Philippe Veillard (Geneva) and Mario Pasquini (Lausanne), qualified chartered accountants, join the Group
The Group expands its presence in Geneva and Lausanne
Consolidated annual sales exceed CHF 10 million for the first time
2003
Philippe Joerg, a qualified chartered accountant, joined the firm after a career with PwC and Lombard Odier. He gradually developed the corporate finance and business transfer activities and also qualified as a tax expert in 2006.
2005
The Group joins CROWE Global, the world's 9th largest network of audit and accounting firms
2006
Integration of a small team from BearingPoint, including Roland Rueff, a consultant specialising in public mandates
2009
Acquisition of CFT Compagnie Fiduciaire Temko Lausanne SA, a company founded in 1994 by Gian-Franco Locca, a qualified chartered accountant
2011
For the first time, the teams from the various Lausanne entities have been brought together on a single site at Rue Etraz.
2013
Acquisition of a majority stake in Duchosal Révision Fiscalité Fiduciaire SA, a Geneva-based company whose origins date back to 1881, and RFF Fiduciaire SA in Sion
Philippe Lathion and Jacques Perrot, qualified chartered accountants, and several other qualified chartered accountants join the Group
The threshold of 100 employees (Geneva and Lausanne) is exceeded
Consolidated annual sales exceed CHF 20 million for the first time
2015
Acquisition of a majority stake in Fribourg-based fiduciaries ECA Experts Comptables Associés SA and Sorefisa Fribourg, société de révision et de fiscalité SA
Dominique Seydoux, qualified chartered accountant, joins the Group
The Berney Group is now present in the cantons of Geneva, Vaud, Fribourg and Valais.
2017
Merger of Firel Berney and Berney Temko
The Group ranks 7th in Switzerland in terms of the number of audit mandates.
2018
Berney Conseil SA becomes Berney Associés SA
Merger of Berney & Associés and Gerofid
Spin-off of fiduciary activities into Berney Associés SA and Berney Associés Audit SA
After founding and managing the company for more than 25 years, Charles Berney is stepping down as Chairman of the Board.
2021
Merger of Duchosal Berney and Berney Associés SA
Acquisition of a majority stake in Sefirex
Acquisition of a majority stake in Ofisa
Consolidated annual sales exceed CHF 30 million for the first time
2022
Acquisition of a majority stake in OfiComptes
Lathion Berney Associés becomes Berney Associés Valais SA
Sorefisa Berney SA Société Fiduciaire becomes Berney Associés Fribourg SA
2023
Merger of Sefirex and Berney Associés SA
Relocation of Lausanne offices to Chemin de Roseneck 5
Berney Associés SA voted 2nd best tax consultancy firm in Switzerland for 2023, according to a study conducted by Statista, in collaboration with Le Temps and Bilanz
2024
Berney Associés SA has been voted the best tax consultancy firm in Switzerland with 150 to 249 employees for 2024, according to a study conducted by Statista, in collaboration with Le Journal PME and Bilanz.
2025
Berney Associés SA joins forces with fiduciary Alteris Léman and sets up in Nyon to strengthen its presence on the Lake Geneva region
Alteris Léman becomes Berney Associés Nyon SA in July