"Achieve your milestones due to connected financial data."

Our Accounting Practice (Fiduciaire Muller & Associés SA)

4 Business lines

  • Chartered accountants
  • Tax compliance and advisory (direct & indirect taxation)
  • Payroll
  • Corporate


Staff within the accounting practice incl. 9 chartered accountants, 7 tax consultants, 6 economists, 25 accountants and 6 payroll specialists.

2 Offices

  • Strassen
  • Mersch

3 Strengths

  • Well defined methodology
  • Experienced team
  • Proprietary and connected IT tools (, salary pro, …).

3 Types of clients

  • Large SMEs and Luxembourg based family businesses
  • Public sector (Ministries, Administrations, Municipalities)
  • Since 2020 extension to small companies, self-employed and private individuals

1 Mission

Financial transparency for our clients

Two professions under one roof

Accounting expertise

  • Accounting
  • Cost accounting
  • Consolidation
  • Payroll
  • Tax
  • Corporate
  • Individuals

Financial advisory

  • Business valuation
  • Reporting
  • Financial projections
  • Cashflow forcasting
  • Financial and tax due diligence

" We are a fiduciary that serves businesses and public stakeholders of all sizes. "


We do have a specific expertise and know-how in business valuations based on a well-defined methodology.

Link to video

Get your copy of the “Valorisation” book now

Family business

Muller & Associés is owned and managed by the two brothers Frédéric and Laurent Muller.


Muller & Associés in the press.


Our key words

  • Luxembourgish
  • Real economy
  • Digitalization
  • Member of the OEC (Ordre des Experts-Comptables)
  • Consulting and assistance in the decisions making process for our clients

Corporate finance

As looking backwards at the rear view mirror is not sufficient to run a company, we have a dedicated team in corporate finance (forward looking, i.e. business plans, cash-flow planning, …).


2 pro bono mandates for 2 Luxembourgish Foundations and implication in a couple of Associations.



A single chartered accountant can no longer meet all your needs

Muller&Associés is organised like a business in order to meet the most complex requirements

Contact person


Shareholding and Management

management photo


Managing Partner

Frédéric is a graduate of the Institut Supérieur de Gestion (ISG) in Paris and a certified accountant in Luxembourg. Prior to this, he spent 4 years in audit at Deloitte, serves on the boards of companies and associations, and was a trainer at the Luxembourg School for Commerce (LSC). He is also a member of the FJD (Federation of Young Leaders of Luxembourg) and serves as the president of the Enner Dach association.

Frédéric is proficient in English, French, German, and Luxembourgish.


Managing Partner

Laurent holds a Ph.D. in Economics and is a certified accountant. Between 2003 and 2006, Laurent worked as a project manager at Paul Wurth. He also serves as an Adjunct Faculty at HEC Liège. He was the president of the Federation of Young Business Leaders (FJD), a board member of the Luxembourg Business Angel Network (LBAN), and a board member of commercial companies such as Grosbusch and Systemat Belux, among others.

Laurent is proficient in German, English, French, and Luxembourgish.


E-mail :
Office in Strassen

153 – 155 rue du Kiem (Entrée A) L-8030 Strassen

Tel: +352 40 48 21

Office in Mersch

à partir du 1er juillet 2022
12, avenue Grande Duchesse Charlotte L-7520 Mersch

Tel: +352 32 68 46

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2024 - All rights reserved by Muller & Associés