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Rens accountants

We are an ambitious consultancy firm with a staff of 35 and offices in Mechelen, Putte, Rotselaar and Vilvoorde.  Our clients’ trust results from high quality advice and support in the field of accountancy, taxes, VAT, fiscal advice, consultancy as well as mediation assignments.


We offer an integrated service fully in line with your organisational requirements, irrespective of your size, your business or your objectives.  Large companies come to us to supplement their internal know-how with specialised advice in specific fields.  Small and medium-sized businesses and associations see our generalists as reliable consultants who are well-versed in a wide range of professional services with access to a network of specialists.

Your case manager looks after your assignment and guarantees a personal approach and continuity.  Your confidential representative is responsible for the administrative processing of your case, representation in the tax authorities, as well as strategic and fiscal advice.  Depending on the complexity and extent of your case, a number of staff members can be used to guarantee permanent follow-up.

Our approach aims at partners actively participating in discussions with the management and owners. This includes a high level of involvement of both the partners and employees in ensuring optimal efficiency and a high added value.

Business is in our DNA, we stand for quality and always strive for excellence.

Our partners

Johan Hellinckx

After my education as licentiate in Commercial Sciences, I started my career as an audit staff member at BDO in Brussels. In 1998 I achieved the title of company auditor. Besides audits, I have also been able to build up extensive experience in consolidation, due diligence, valuation of companies, cash flow planning, budgeting, cost price calculation, etc.

From 2004 to 2013 was I CFO at the quoted Keyware Technologies. During this period I gained experience in IFRS reporting, drawing up KPIs, the take-over and sale of companies, setting up reporting systems and finding financing.

Filip Diez


My operational career started at Electrolux. Afterwards I was employed as a senior manager at EY and BDO.  After 20 years of experience you can count on my thorough expertise in just about all practical fields associated with the accountancy profession.  Besides being a certified IAB Accountant and Tax Consultant I also obtained certification to take up the mandate of independent director.  The Commercial Court and the magistrates’ court also regularly appeal to me as legal expert.  My education included the study of Fiscal Sciences at Brussels Tax College. 

Marjolijn Himpens

I have 20 years of experience in advising Belgian and multinational companies on all aspects of accounting, reporting, GAAP conversions, tax compliance, VAT, annual accounts, etc. I am also an expert in assessing ERP systems for local legislation, while advising multinationals on local requirements abroad. I previously worked for five years at EY, one year at a production plant where great importance was devoted to budgeting and reporting, and around 10 years at PwC. Besides being a certified IAB Accountant and Tax Consultant, I also have a Master’s in Tax Management.

our staff

Our staff are the driving force behind Rens Accountants.  Teamwork, creativity and open communication go hand in hand with a result-driven approach.  

Our consultants combine thorough knowledge in their fields of study with a full commitment to quality, trust and personal service.  

Inspired to join our dynamic and ambitious team? 

our clients

We are proud of our varied client portfolio:

  • starters

  • sole traders

  • Belgian SMEs

  • subsidiaries of international groups

  • quoted companies

Curious about what we could do for you?  


André Vandenberk

General Manager - Electro Rent Europe NV

"Rens Accountants has been a reliable business partner for many years in offering us the necessary support based on professionalism and competence, while working with us on taking the company forward."

Rudy Saerens

Managing Director - Bühler Belgium Branch

"With Rens Accountants I feel more understood and challenged.  That is not only my feeling, I get the same feedback from my staff."

Stefan Engels

Managing Director - Commsquare BVBA

"Rens Accountants not only looks at the fiscal and legal aspects of our company, they also consider the operational side.  This has resulted in a substantial increase in the value of our company..."

Dirk Paelinck

CEO - Interoffices BVBA & Workero

"We were in search of accountants who could combine a personal approach and the regional proximity of a local office with the necessary international expertise of the large offices."

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