Active · per the CBE, 31 October 2026

SEI

BE0875021459

Rechtspersoon Private limited company 1 establishment

SEI is an architecture firm in Kapelle-op-den-Bos. Private Limited, started on 12 July 2005, 1 establishment.

Oxdonkstraat 160, 1880 Kapelle-op-den-Bos

Behind the company: Wannes Thienpont.

Active for

21 year, 3 months

Warning lights

Signals from the annual accounts, the CBE and the Official Gazette, each with its threshold and source. No score, no verdict.

  • Two loss years in a row NBB

    Negative result in 2024 and 2025.

Financials

Financial year 2025

SEI from Kapelle-op-den-Bos, company number BE0875021459, closed financial year 2025 with a result of € -4,962 after tax. For that financial year SEI recorded a gross margin of € 895 and equity of € 140,015. Compared with financial year 2024, the result moved from € -2,621 to € -4,962. The company made a loss. The company holds a healthy buffer. A strong own buffer against the debts. The most recent annual accounts were filed with the National Bank of Belgium on September 30, 2026.

What it is worth Healthy

€ 140,015

▼ 9% vs 2024

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

Loss Caution

€ -4,962

▼ 89 % more loss than in 2024

Profit after tax over the fiscal year.

Cash in the bank

€ 39,492

▼ 46% vs 2024

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

Where the profit goes Caution

Loss, nothing to pay out

Reserves fell to € 55,207.

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

€ 4,051

▼ 80% vs 2024

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

€ 1,976

▼ 6% vs 2024

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

Taxes

€ 6,434

▲ 299% vs 2024

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

Key figures per fiscal year Download key figures (CSV)
2022202320242025Change 2024 → 2025
Gross margin € 42,195 € -9,330 € 7,305 € 895 ▼ 88%
Profit after taxes € 25,075 € -15,892 € -2,621 € -4,962 ▼ € 2,341
Equity € 176,552 € 155,660 € 153,038 € 140,015 ▼ 9%
Total debts € 77,735 € 39,365 € 24,455 € 37,219 ▲ 52%
Cash € 172,823 € 57,723 € 73,076 € 39,492 ▼ 46%
Retained profit € 91,744 € 70,852 € 68,230 € 55,207 ▼ 19%
Dividend € 16,036 € 5,000 € 0 € 8,061
Balance sheet total € 254,287 € 195,024 € 177,493 € 177,235

Key figures of SEI, 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 SEI?

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

  • New annual accounts for financial year 2025: loss of € 4,962. filed late Source: NBB ↗
  • New establishment in Kapelle-op-den-Bos. KBO
  • Start of the company according to the CBE. KBO
  • Wannes Thienpont became a director. NBB

In short

From € 25,075 profit in 2022 to € 4,962 loss in 2025.

Paid € 12,025 in corporate taxes since 2022.

Best year ever: 2022, with € 25,075 profit.

Paid out € 29,097 in dividends to the owners in total.

Management

Wannes Thienpont
SEI

Behind SEI is Wannes Thienpont.

Directors

According to the 2025 annual accounts

Wannes Thienpont

Director

since 2005

Establishments

Establishment units

Physical locations of this company

Registered office

Oxdonkstraat 160

1880 Kapelle-op-den-Bos

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

Details

Company number
0875.021.459
VAT number
BE 0875.021.459
Registered office
Oxdonkstraat 160, 1880 Kapelle-op-den-Bos
Names & denominations
SEI
Enterprise type
Rechtspersoon
Legal form
Private limited company
Legal situation
Normale toestand
Start date
12 July 2005
Peppol
Active · Active since 20 Oct 2025
Activities · NACE

Activiteiten van interieurarchitecten

Installatie van isolatie

Beoefening van uitvoerende kunsten door zelfstandig werkende artiesten

Isolatiewerkzaamheden

Zelfstandig werkende kunstenaars en artiesten

Frequently asked questions

What does SEI do?
SEI is an architecture firm in Kapelle-op-den-Bos. Private Limited, started on 12 July 2005, 1 establishment.
What is the address of SEI?
The registered office of SEI is located at Oxdonkstraat 160, 1880 Kapelle-op-den-Bos.
Is SEI still active?
Yes. According to the CBE (31 October 2026) SEI is active, legal situation “Normale toestand”, started on 12 July 2005.
Is SEI registered on Peppol?
Yes, SEI is registered on the Peppol network with ID 0208:0875021459.
What is the enterprise number of SEI?
The enterprise number of SEI is BE0875021459.
When was SEI founded?
SEI was founded on 12 July 2005.