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MAINSYS GROUP

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BE0456540594

Rechtspersoon Public limited company 1 establishment

Marsveldplein 5, 1050 Elsene Computeradviesbureaus

Active for

30 year, 9 months

Financials

Financial year 2025

Revenue

€ 4.7 million

Profit

Growing

€ 1.6 million

▲ 202% vs 2024

Debts

Low

€ 3.2 million

▼ 28% vs 2024

MAINSYS GROUP from Elsene, company number BE0456540594, closed financial year 2025 with a result of € 1.6 million after tax. For that financial year MAINSYS GROUP recorded revenue of € 4.7 million and equity of € 8.7 million. Compared with financial year 2024, the result moved from € 523,418 to € 1.6 million. Profitable, and profit is growing. The buffer is growing. A strong own buffer against the debts. The most recent annual accounts were filed with the National Bank of Belgium on May 12, 2026.

What happened at MAINSYS GROUP?

What happened at MAINSYS GROUP in recent years, according to the Belgian Official Gazette, the CBE and the National Bank:

  • Jacques FAVILLIER stepped down as director. NBB
  • MONEYSOFT SA stepped down as director. NBB
  • Jean-Marie THIBAUT stepped down as director. NBB
  • CREDIT MUTUEL ARKEA SCRL stepped down as director. NBB
  • Pierre LEMAIRE stepped down as director. NBB
  • Jean-Valéry DUVIEUSART stepped down as director. NBB
  • Bernard CLERBOIS stepped down as director. NBB
  • Alexandre DEGRIJSE stepped down as director. NBB

In short

From € 55,808 profit in 2021 to € 1.6 million profit in 2025.

Paid € 115,863 in corporate taxes since 2021.

Best year ever: 2025, with € 1.6 million profit.

Pays suppliers within 41 days on average.

A new publication or filing at MAINSYS GROUP? We notify you, reason included.

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History

Every financial year, as far back as the National Bank goes.

Buffer

How long does the company survive without income?

Credit limit

Indicative credit limit, computed from the real figures.

Alerts

New annual account: profit halved. New
Gazette: capital increase of 250k. New

News about who you follow, reason included.

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Management

MAINSYS GROUP
MAINSYS FRANCE 100%
MAINSYS LUXEMBOURG 100%

It owns 100% of MAINSYS FRANCE, 100% of MAINSYS FINANCIAL SOFTWARE, 100% of MAINSYS LUXEMBOURG and 100% of MAINSYS BELGIUM itself.

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Directors

According to the 2025 annual accounts

Jacques FAVILLIER

Director

since 2021 · until 2027

MONEYSOFT SA

Director · represented by Jacques GODET

since 2024 · until 2027

Jean-Marie THIBAUT

Managing director

Also active at: SOMOTA, THARSOS INVEST, MAINSYS FINANCIAL SOFTWARE +1 more

since 2021 · until 2027

CREDIT MUTUEL ARKEA SCRL

Director · represented by Mickael BLEUSE

since 2021 · until 2027

Pierre LEMAIRE

Managing director

Also active at: LEMAIRE CONSULTING, THARSOS INVEST, MAINSYS FINANCIAL SOFTWARE +1 more

since 2021 · until 2027

Jean-Valéry DUVIEUSART

Director

Also active at: CoRealise, MAINSYS BELGIUM

since 2021 · until 2027

Bernard CLERBOIS

Managing director

Also active at: CLERBOIS CONSULTING, MAINSYS FINANCIAL SOFTWARE, MAINSYS BELGIUM

since 2021 · until 2027

Alexandre DEGRIJSE

Director

Also active at: MAINSYS FINANCIAL SOFTWARE, AGO CONSULTING

since 2021 · until 2027

Claude LEGUAY

Director

since 2021 · until 2027

Stéphane LECHAUDE

Director

Also active at: LECHAUDE CONSULTING, MAINSYS BELGIUM

since 2021 · until 2027

Establishments

Establishment units

Physical locations of this company

Registered office

Marsveldplein 5 box 21

1050 Elsene

What is an establishment unit? An establishment unit is a geographically identifiable place where activities of the enterprise are carried out.

Details

Company number
0456.540.594
VAT number
BE 0456.540.594
Registered office
Marsveldplein 5 bus 21, 1050 Elsene
Names & denominations
MAINSYS GROUP
Enterprise type
Rechtspersoon
Legal form
Public limited company
Legal situation
Normale toestand
Start date
29 November 1995
Peppol
Active · Active since 24 Sept 2025
Activities · NACE

Computeradviesbureaus

Activiteiten op het gebied van computerconsultancy en beheer van computerfaciliteiten

Computerconsultancy-activiteiten

Computerinfrastructuur, gegevensverwerking, hosting en aanverwante activiteiten

Gegevensverwerking

Gegevensverwerking, webhosting en aanverwante activiteiten

Frequently asked questions

What is the enterprise number of MAINSYS GROUP?
The enterprise number of MAINSYS GROUP is BE0456540594.
What is the address of MAINSYS GROUP?
The registered office of MAINSYS GROUP is located at Marsveldplein 5 box 21, 1050 Elsene.
When was MAINSYS GROUP founded?
MAINSYS GROUP was founded on 29 November 1995.
What is the main activity of MAINSYS GROUP?
The main activity of MAINSYS GROUP is "Computeradviesbureaus" (NACE code 72100).
Does MAINSYS GROUP have a website?
No website is currently known for MAINSYS GROUP.
How much profit did MAINSYS GROUP make in 2025?
MAINSYS GROUP posted a profit after taxes of € 1,579,059 in financial year 2025.
What is the revenue of MAINSYS GROUP?
In its most recent annual accounts (2025), MAINSYS GROUP reported revenue of € 4,725,965.
How many employees does MAINSYS GROUP have?
According to the 2025 annual accounts, MAINSYS GROUP has 7.9 full-time equivalents (FTE).
Where can I find the annual accounts of MAINSYS GROUP?
MAINSYS GROUP files its annual accounts with the Central Balance Sheet Office of the National Bank of Belgium. The key figures for recent financial years are available for free on this page.
Who are the directors of MAINSYS GROUP?
According to the 2025 annual accounts, the directors of MAINSYS GROUP are: Jacques FAVILLIER, MONEYSOFT SA, Jean-Marie THIBAUT, CREDIT MUTUEL ARKEA SCRL, Pierre LEMAIRE, Jean-Valéry DUVIEUSART, Bernard CLERBOIS, Alexandre DEGRIJSE.
Who owns MAINSYS GROUP?
It owns 100% of MAINSYS FRANCE, 100% of MAINSYS FINANCIAL SOFTWARE, 100% of MAINSYS LUXEMBOURG and 100% of MAINSYS BELGIUM itself.