About us



  • 1983
    The office of DRT & Partners was founded in 1983 in Tielt-Winge under the name of Timmermans & co cv.
  • 1985
    In 1985 the first office opened in Diest in the Leuvensestraat. Because of its consistent growth the office moved to a larger location at the Henri Verstappenplein. At the same time, smaller offices were opened in Aarschot and in Blanden for a number of larger and middle-sized clients.
  • 1996
    It was only in 1996 that the name DRT & Partners was first used following the take-over of the office Defoort & co in Brussels.
  • 1999
    In 1999 this office moved to its current address at the Romeinsesteenweg in Wemmel.
  • 2001
    After the take-over of the office Peeters-Debie in Aarschot in 2001 and merging with the existing offices in Aarschot and Blanden the current establishment at the Grote Markt in Aarschot was formed.
  • 2006
    In order to create the necessary synergies and increase the availability for the clients, the office in Diest was integrated in the office in Aarschot in 2006.
  • 2019
    In 2019 Evelyne Fagnard became partner of the association of Accountantskantoor DRT & Partners BV.
  • 2020
    Anno 2020 – a year filled with challenges on all levels – we are still a dynamic, growing team focused on innovation and quality in an ever changing business environment.


Best possible service

Our mission is to provide the best possible service to our clients by listening to their questions and wishes so that we can optimise their results.

Lasting and personal relationships

To achieve this, we work on the basis of trust, expertise, integrity, mutual respect and close involvement so that we can make a significant contribution to the success of our clients’ organisations. 


Our aim is to strive for a standard of quality in the advice we provide that is a match for the larger firms in the sector. Good value for money is a top priority for us.

Our Partners

Peter Robrechts

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Paul Bergen

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Evelyne Fagnard

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Willy Timmermans

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Peter Robrechts

Peter Robrechts is a graduate of Applied Economic Sciences (UFSIA 1987), Commercial Engineer (UFSIA 1988) and Master of Business Administration (VUB 1992). After his studies and his military service, in 1989-1990 he spent a year working for the ING bank (formerly BBL) as part of the university work placement team and in the branch network.

In September 1990, he joined the ranks of Deloitte Company Auditors (formerly Deloitte & Touche), where he was employed for six years in the audit department specialising in auditing banks and insurance institutions, listed companies and organisations in the non-profit sector, such as hospitals and mutual insurance companies.

In September 1996 he became a partner with DRT & Partners accountants, with offices in Wemmel and Aarschot.

In June 1999 he established the firm Robrechts & Partners Company Auditors, which in 2012 changed its name to Robrechts Lenaerts Company Auditors.

Peter Robrechts has been a member of the Institute of Company Auditors (IBR) since 1996 and a member of the Institute of Accountants and Tax Consultants (IAB) since the year 2000.

Paul Bergen is an accountant and tax consultant.

Having completed his studies in bookkeeping and IT and finished his military service, he learned the tricks of the trade as a bookkeeper with a group of companies (a holding company with various operating companies).

After a work placement and completing exams at the Institute of accountants and tax consultants, he gained the degree of accountant in 1993.

Around that time, he became a partner and business manager at the accountancy firm Timmermans en Partners, later to become DRT & Partners.

In 2000, he obtained the degree of tax consultant.

His main areas of interest are companies and real-estate structures.

Evelyne Fagnard graduated as Bachelor Accountancy and Finance at the UCLL (formerly known as Groep T) in Leuven. She combined the studies with a professional experience at EY (Ernst & Young) but also with a first professional experience as file manager at DRT & Partners BV. She joined the team of DRT & Partners BV again in February 2007 as Account Manager and became Partner in July 2019.

After an internship and completing the exams at the Beroepsinstituut van Erkende Boekhouders en Fiscalisten (l’Institut Professionnel des Comptables et Fiscalistes Agréés) she obtained the title of Accountant-Tax Adviser in 2020.

Automation and digital processing are a must for accounting firms these days. Evelyne is the contact person both internally and towards clients for a smooth working with the Cloud software Octopus and Silverfin.

Willy Timmermans is an IAB tax consultant and accountant.

He studied at HUB, Brussels University College, and at the Tax College (1973-1978). After his studies, he worked at the Ministry of Finance as a corporate tax inspector.

From 1982 to 1985, he was a tax consultant and accountant at the tax consultancy firm Defoort & Co in Brussels.

Since 1985, he has worked as a partner-business manager at Timmermans & Partners and DRT & Partners, with offices in Aarschot and Wemmel.

He advises Belgian and international clients and has a great interest in tax procedures and tax planning.

Willy Timmermans has been a member of the Institute of Accountants and Tax Consultants since 1983 and of PrimeGlobal, an international association of accountants and tax consultants, since 1995.