What does WILLIAM do?

WILLIAM is a specialised building contractor in Mechelen. Private Limited, started on 19 June 1981, 1 establishment.

What is the address of WILLIAM?

The registered office of WILLIAM is located at Lange Heistraat 56-58, 2800 Mechelen.

Is WILLIAM still active?

Yes. According to the CBE (30 October 2026) WILLIAM is active, legal situation “Normale toestand”, started on 19 June 1981.

Is WILLIAM registered on Peppol?

Yes, WILLIAM is registered on the Peppol network with ID 0208:0421679091.

What is the enterprise number of WILLIAM?

The enterprise number of WILLIAM is BE0421679091.

When was WILLIAM founded?

WILLIAM was founded on 19 June 1981.

Who are the directors of WILLIAM?

According to the 2025 annual accounts, the directors of WILLIAM are: Willy Leysen.

Is WILLIAM a reliable company?

Databakkes does not pass judgement; this is what the sources say: Active according to the CBE since 19 June 1981; 5 annual accounts filed, latest fiscal year 2025; 1 directors known from the annual account.

How much profit did WILLIAM make in 2025?

WILLIAM posted a profit after taxes of € 4,073 in financial year 2025.

What is the revenue of WILLIAM?

As a small company, WILLIAM is not required to publish revenue in its annual accounts. In financial year 2025, its added value was € 7,977.

WILLIAM (Private Limited) - Mechelen - BE0421679091

Dossier WILLIAM, printed on 30 October 2026 from databakkes.be/en/0421679091/william. Sources: CBE, National Bank of Belgium, Belgian Official Gazette.

Financials

Financial year 2025

WILLIAM from Mechelen, company number BE0421679091, closed financial year 2025 with a result of € 4,073 after tax. For that financial year WILLIAM recorded a gross margin of € 7,977 and equity of € 33,648. Compared with financial year 2024, the result moved from € -5,384 to € 4,073. 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 July 8, 2026.

What it is worth Growing

€ 33,648

▲ 14% vs 2024

Assets minus debts, by the books. What is left if everything were sold and paid today.

Profit Growing

€ 4,073

▲ still € 5,384 loss in 2024

Profit after tax over the fiscal year.

Cash in the bank

€ 10,139

▲ 85% vs 2024

Cash and bank balances on the last day of the fiscal year.

Where the profit goes Growing

Stays in the company

No dividend for 2025. Retained profit grew to € -20,393.

People and assets in 2025

Full-time equivalents estimate The annual accounts report no full-time equivalents. A micro company with one active director is usually run by that person; this is an assumption, not a figure from the source.

≈ 1

No payroll staff. One director, so that person most likely runs the business.

Debts at end 2025

Bank debt

None

No bank loans on the last day of the fiscal year.

Owed to suppliers

€ 2,310

▲ 23% vs 2024

Supplier invoices still open on the last day of the fiscal year.

Key figures per fiscal year Download key figures (CSV)
	2022	2023	2024	2025	Change 2024 → 2025
Gross margin	€ -1,999 Gross margin 2022: € -1,999 First fiscal year in the series	€ -2,638 Gross margin 2023: € -2,638 ▼ € 639 vs 2022 (€ -1,999) Unfavourable step	€ -1,426 Gross margin 2024: € -1,426 ▲ € 1,212 vs 2023 (€ -2,638) Favourable step	€ 7,977 Gross margin 2025: € 7,977 ▲ € 9,403 vs 2024 (€ -1,426) Favourable step	▲ € 9,403
Profit after taxes	€ -7,992 Profit after taxes 2022: € -7,992 First fiscal year in the series	€ -8,651 Profit after taxes 2023: € -8,651 ▼ € 659 vs 2022 (€ -7,992) Unfavourable step	€ -5,384 Profit after taxes 2024: € -5,384 ▲ € 3,267 vs 2023 (€ -8,651) Favourable step	€ 4,073 Profit after taxes 2025: € 4,073 ▲ € 9,457 vs 2024 (€ -5,384) Favourable step	▲ € 9,457
Equity	€ 43,609 Equity 2022: € 43,609 First fiscal year in the series	€ 34,959 Equity 2023: € 34,959 ▼ 20% vs 2022 (€ 43,609) Unfavourable step	€ 29,575 Equity 2024: € 29,575 ▼ 15% vs 2023 (€ 34,959) Unfavourable step	€ 33,648 Equity 2025: € 33,648 ▲ 14% vs 2024 (€ 29,575) Favourable step	▲ 14%
Total debts	€ 2,146 Total debts 2022: € 2,146 First fiscal year in the series	€ 4,638 Total debts 2023: € 4,638 ▲ 116% vs 2022 (€ 2,146) Unfavourable step	€ 11,352 Total debts 2024: € 11,352 ▲ 145% vs 2023 (€ 4,638) Unfavourable step	€ 11,731 Total debts 2025: € 11,731 ▲ 3% vs 2024 (€ 11,352) Unfavourable step	▲ 3%
Cash	€ 12,226 Cash 2022: € 12,226 First fiscal year in the series	€ 3,707 Cash 2023: € 3,707 ▼ 70% vs 2022 (€ 12,226) Unfavourable step	€ 5,481 Cash 2024: € 5,481 ▲ 48% vs 2023 (€ 3,707) Favourable step	€ 10,139 Cash 2025: € 10,139 ▲ 85% vs 2024 (€ 5,481) Favourable step	▲ 85%
Land & buildings	€ 6,404 Land & buildings 2022: € 6,404 First fiscal year in the series	€ 5,123 Land & buildings 2023: € 5,123 ▼ 20% vs 2022 (€ 6,404) Unchanged	€ 3,842 Land & buildings 2024: € 3,842 ▼ 25% vs 2023 (€ 5,123) Unchanged	€ 2,562 Land & buildings 2025: € 2,562 ▼ 33% vs 2024 (€ 3,842) Unchanged	▼ 33%
Retained profit	€ -10,432 Retained profit 2022: € -10,432 First fiscal year in the series	€ -19,082 Retained profit 2023: € -19,082 ▼ € 8,651 vs 2022 (€ -10,432) Unfavourable step	€ -24,466 Retained profit 2024: € -24,466 ▼ € 5,384 vs 2023 (€ -19,082) Unfavourable step	€ -20,393 Retained profit 2025: € -20,393 ▲ € 4,073 vs 2024 (€ -24,466) Favourable step	▲ € 4,073
Balance sheet total	€ 45,755 Balance sheet total 2022: € 45,755 First fiscal year in the series	€ 39,597 Balance sheet total 2023: € 39,597 ▼ 13% vs 2022 (€ 45,755) Unchanged	€ 40,927 Balance sheet total 2024: € 40,927 ▲ 3% vs 2023 (€ 39,597) Unchanged	€ 45,379 Balance sheet total 2025: € 45,379 ▲ 11% vs 2024 (€ 40,927) Unchanged	▲ 11%

Key figures of WILLIAM, fiscal years 2022 to 2025, from the annual accounts filed with the National Bank of Belgium.Next annual account (fiscal year 2026) expected before 31 July 2027.

What happened to WILLIAM?

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

Jul 8, 2026 New annual accounts for financial year 2025: profit of € 4,073. Source: NBB ↗
1991 Willy Leysen became a director. NBB
Jul 1, 1981 New establishment in Mechelen. KBO
Jun 19, 1981 Start of the company according to the CBE. KBO

In short

From € 7,992 loss in 2022 to € 4,073 profit in 2025.

Best year ever: 2025, with € 4,073 profit.

Original PDFs at the National Bank ↗

Management

Willy Leysen

WILLIAM

Behind WILLIAM is Willy Leysen.

Directors

According to the 2025 annual accounts

Willy Leysen

Director

since 1991

Establishments

Establishment units

Physical locations of this company

Registered office

Lange Heistraat 56-58

2800 Mechelen

2.019.072.816

Lange Heistraat 56

2800 Mechelen

Active since 1 July 1981

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

Details

Company number

0421.679.091

VAT number

BE 0421.679.091

Registered office

Lange Heistraat 56-58, 2800 Mechelen

Names & denominations

WILLIAM

Enterprise type

Rechtspersoon

Legal form

Private limited company

Legal situation

Normale toestand

Start date

19 June 1981

Peppol

Active · Active since 29 Oct 2025

Activities · NACE

Overige bouwinstallatie

Overige bouwinstallatie, n.e.g.

View on CBE Public ↗ Annual accounts (NBB) ↗

WILLIAM

Financials

What happened to WILLIAM?

Management

Directors

Establishments

Establishment units

Details

Frequently asked questions