Active · per the CBE, 19 September 2026
de Do à Si logo

de Do à Si

BE0678546969

Rechtspersoon Private limited company 1 establishment

Blauwe Vogellaan 9, 1150 Sint-Pieters-Woluwe dedoasi.be

Behind the company: Katalin Thibodeaux.

Active for

9 year, 2 months

Financials

Financial year 2025

de Do à Si from Sint-Pieters-Woluwe, company number BE0678546969, closed financial year 2025 with a result of € 121 after tax. For that financial year de Do à Si recorded a gross margin of € 661 and equity of € 24,507. Compared with financial year 2024, the result moved from € 1,851 to € 121. 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 June 18, 2026.

What it is worth Growing

€ 24,507

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

Profit Healthy

€ 121

▼ 93% vs 2024

Profit after tax over the fiscal year.

Cash in the bank

€ 1,111

▲ 15% 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 € -14,243.

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

€ 23,150

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

€ 48

▲ 124% vs 2024

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

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Key figures per fiscal year Download key figures (CSV)
2022202320242025Change 2024 → 2025
Revenue € 6,583 - - -
Gross margin € -11 € 1,643 € 1,909 € 661 ▼ 65%
Profit after taxes € -234 € 219 € 1,851 € 121 ▼ 93%
Equity € 22,317 € 22,536 € 24,387 € 24,507
Total debts € 2,349 € 1,471 € 21 € 48 ▲ 124%
Cash € 1,076 € 697 € 964 € 1,111 ▲ 15%
Retained profit € -16,433 € -16,214 € -14,363 € -14,243 ▲ € 121
Balance sheet total € 24,666 € 24,007 € 24,408 € 24,555 ▲ 1%

Key figures of de Do à Si, 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 de Do à Si?

What happened at de Do à Si in recent years, according to the Belgian Official Gazette, the CBE and the National Bank:

  • New annual accounts for financial year 2025: profit of € 121 (▼ 93% vs 2024). Source: NBB ↗
  • Katalin Thibodeaux became a director. NBB
  • New establishment in Sint-Pieters-Woluwe. KBO
  • Start of the company according to the CBE. KBO

In short

From € 234 loss in 2022 to € 121 profit in 2025.

Best year ever: 2024, with € 1,851 profit.

Original PDFs at the National Bank ↗

A new publication or filing at de Do à Si? We notify you, reason included.

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My folder 3 companies
  • De Lijn 8 June 2026 New annual account 2025

    filed on 8 June 2026

    What was left

    € 20 k ▼ 91%

    Money in the bank

    € 178 k ▼ 98%

    Open the dossier →

  • NMBS 8 June 2026 New annual account 2025 What was left ▼ 80%
  • bpost 18 May 2026 New annual account 2025 What was left from loss to profit
Real filings at the National Bank

Management

Katalin Thibodeaux
de Do à Si

Behind de Do à Si is Katalin Thibodeaux.

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Directors

According to the 2025 annual accounts

Katalin Thibodeaux

Director

since 2023

Establishments

Establishment units

Physical locations of this company

Registered office

Blauwe Vogellaan 9

1150 Sint-Pieters-Woluwe

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

Website

de Do à Si website
HTTPS dedoasi.be

Technologies

ApacheVarnish

Hosting & Email

Email provider

one.com Mail

Hosting

ONECOM, DK

Website info

HTTPS Ja
Languages FR

Features

Contact page

Security

✓ HTTPS
✗ SPF
✗ DMARC

Network

✓ IPv6

Details

Company number
0678.546.969
VAT number
BE 0678.546.969
Registered office
Blauwe Vogellaan 9, 1150 Sint-Pieters-Woluwe
Names & denominations
de Do à Si
Enterprise type
Rechtspersoon
Legal form
Private limited company
Legal situation
Normale toestand
Start date
13 July 2017
Peppol
Active · Active since 29 Mar 2026
Contact
dedoasi.be
View on CBE Public ↗ Annual accounts (NBB) ↗

Frequently asked questions

What is the address of de Do à Si?
The registered office of de Do à Si is located at Blauwe Vogellaan 9, 1150 Sint-Pieters-Woluwe.
Is de Do à Si still active?
Yes. According to the CBE (19 September 2026) de Do à Si is active, legal situation “Normale toestand”, started on 13 July 2017.
Is de Do à Si registered on Peppol?
Yes, de Do à Si is registered on the Peppol network with ID 0208:0678546969.
What is the enterprise number of de Do à Si?
The enterprise number of de Do à Si is BE0678546969.
When was de Do à Si founded?
de Do à Si was founded on 13 July 2017.
Who owns de Do à Si?
Behind de Do à Si is Katalin Thibodeaux.