Active · per the CBE, 25 September 2026

J4 Construction

BE0801689459

Rechtspersoon Private limited company 1 establishment

J4 Construction is an engineering firm in Rumst. Private Limited, started on 11 May 2023, 1 establishment.

Clemenshoek 115, 2840 Rumst

Behind the company: JIMMY DE GROOF.

Active for

3 year, 4 months

Financials

Financial year 2025

J4 Construction from Rumst, company number BE0801689459, closed financial year 2025 with a result of € 23,401 after tax. For that financial year J4 Construction recorded a gross margin of € 33,079 and equity of € 51,343. Compared with financial year 2024, the result moved from € 25,942 to € 23,401. The company is profitable. 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 December 24, 2025.

What it is worth Growing

€ 51,343

▲ 84% vs 2024

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

Profit Healthy

€ 23,401

▼ 10% vs 2024

Profit after tax over the fiscal year.

Cash in the bank

€ 44,966

▲ 45% 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 € 49,343.

People and assets in 2025

Full-time equivalents estimate

≈ 1

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

Vehicles and equipment

€ 3,996

Book value of vehicles, furniture and equipment.

Debts at end 2025

Bank debt

None

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

Owed to suppliers

€ 7,677

▲ 2% vs 2024

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

Taxes

€ 14,306

▼ 30% vs 2024

Corporate tax and VAT still to pay. No wage debt: nothing outstanding to staff or social security.

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Key figures per fiscal year Download key figures (CSV)
20242025Change 2024 → 2025
Gross margin € 40,902 € 33,079 ▼ 19%
Profit after taxes € 25,942 € 23,401 ▼ 10%
Equity € 27,942 € 51,343 ▲ 84%
Total debts € 28,593 € 22,160 ▼ 22%
Cash € 30,946 € 44,966 ▲ 45%
Retained profit € 25,942 € 49,343 ▲ 90%
Balance sheet total € 56,536 € 73,503 ▲ 30%

Key figures of J4 Construction, fiscal years 2024 to 2025, from the annual accounts filed with the National Bank of Belgium.Next annual account (fiscal year 2026) expected before 30 January 2027.

What happened to J4 Construction?

What happened at J4 Construction in recent years, according to the Belgian Official Gazette, the CBE and the National Bank:

  • New annual accounts for financial year 2025: profit of € 23,401 (▼ 10% vs 2024). Source: NBB ↗
  • New establishment in Rumst. KBO
  • Start of the company according to the CBE. KBO

In short

From € 25,942 profit in 2024 to € 23,401 profit in 2025.

Paid € 20,856 in corporate taxes since 2024.

Best year ever: 2024, with € 25,942 profit.

Management

JIMMY DE GROOF
J4 Construction

Behind J4 Construction is JIMMY DE GROOF.

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Directors

According to the 2025 annual accounts

JIMMY DE GROOF

Director

Establishments

Establishment units

Physical locations of this company

Registered office

Clemenshoek 115

2840 Rumst

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

Details

Company number
0801.689.459
VAT number
BE 0801.689.459
Registered office
Clemenshoek 115, 2840 Rumst
Names & denominations
J4 Construction
Enterprise type
Rechtspersoon
Legal form
Private limited company
Legal situation
Normale toestand
Start date
11 May 2023
Peppol
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Frequently asked questions

What does J4 Construction do?
J4 Construction is an engineering firm in Rumst. Private Limited, started on 11 May 2023, 1 establishment.
What is the address of J4 Construction?
The registered office of J4 Construction is located at Clemenshoek 115, 2840 Rumst.
Is J4 Construction still active?
Yes. According to the CBE (25 September 2026) J4 Construction is active, legal situation “Normale toestand”, started on 11 May 2023.
Is J4 Construction registered on Peppol?
Yes, J4 Construction is registered on the Peppol network with ID 0208:0801689459.
What is the enterprise number of J4 Construction?
The enterprise number of J4 Construction is BE0801689459.
When was J4 Construction founded?
J4 Construction was founded on 11 May 2023.