(L-R) Tom Engel, FMA; Frédéric Muller, Administrator of FMA; Gilles Vogel, Managing Director of Uncos Sàrl; Laurent Muller, FMA Managing Partner;; Credit: FMA

On Wednesday 29 October 2025, Fiduciaire Muller & Associés SA (FMA), a Luxembourg-based independent fiduciary and accounting firm, announced the acquisition of Uncos Sàrl, effective 1 October 2025.

According to FMA, the integration strengthens its operational presence across four sites, Strassen, Mondorf-les-Bains, Mersch and Mondercange, bringing together a team of 70 professionals providing services in accounting, taxation, payroll, corporate and consulting.

The acquisition follows a series of recent integrations by the firm, including Fiduciaire Latitudes and Panuncia Fiduciaire in 2020, Intaris in 2021, and Fiduciaire du Grand-Duché de Luxembourg in 2022.

As part of the merger, Gilles Vogel, Managing Director of Uncos Sàrl, has joined the FMA management committee, alongside Laurent Muller, Frédéric Muller and Tom Engel.

“We are pleased to welcome the Uncos teams to Fiduciaire Muller & Associés. We share the same family business culture, built on proximity, trust and a long-term vision. This integration strengthens our ability to support our clients in a rapidly changing environment. Fiduciaire Muller & Associés intends to continue its development responsibly and sustainably, placing people, innovation and service quality at the heart of its growth,” said Frédéric Muller, Administrator of FMA.