What is the address of DR. KLAUS DE CLEYN, GYNAECOLOGIE?

The registered office of DR. KLAUS DE CLEYN, GYNAECOLOGIE is located at Heidebaan 55, 9100 Sint-Niklaas.

Is DR. KLAUS DE CLEYN, GYNAECOLOGIE still active?

Yes. According to the CBE (18 September 2026) DR. KLAUS DE CLEYN, GYNAECOLOGIE is active, legal situation “Normale toestand”, started on 2 March 1996.

Is DR. KLAUS DE CLEYN, GYNAECOLOGIE registered on Peppol?

No, DR. KLAUS DE CLEYN, GYNAECOLOGIE is currently not registered on the Peppol network.

What is the enterprise number of DR. KLAUS DE CLEYN, GYNAECOLOGIE?

The enterprise number of DR. KLAUS DE CLEYN, GYNAECOLOGIE is BE0457393897.

When was DR. KLAUS DE CLEYN, GYNAECOLOGIE founded?

DR. KLAUS DE CLEYN, GYNAECOLOGIE was founded on 2 March 1996.

Who are the directors of DR. KLAUS DE CLEYN, GYNAECOLOGIE?

According to the 2025 annual accounts, the directors of DR. KLAUS DE CLEYN, GYNAECOLOGIE are: Klaus De Cleyn.

Is DR. KLAUS DE CLEYN, GYNAECOLOGIE a reliable company?

Databakkes does not pass judgement; this is what the sources say: Active according to the CBE since 2 March 1996; 4 annual accounts filed, latest fiscal year 2025; 1 directors known from the annual account.

How much profit did DR. KLAUS DE CLEYN, GYNAECOLOGIE make in 2025?

DR. KLAUS DE CLEYN, GYNAECOLOGIE posted a profit after taxes of € 221,605 in financial year 2025.

What is the revenue of DR. KLAUS DE CLEYN, GYNAECOLOGIE?

As a small company, DR. KLAUS DE CLEYN, GYNAECOLOGIE is not required to publish revenue in its annual accounts. In financial year 2025, its added value was € 449,656.

DR. KLAUS DE CLEYN, GYNAECOLOGIE (Private Limited)

Dossier DR. KLAUS DE CLEYN, GYNAECOLOGIE, printed on 18 September 2026 from databakkes.be/en/0457393897/dr-klaus-de-cleyn-gynaecologie. Sources: CBE, National Bank of Belgium, Belgian Official Gazette.

Warning lights

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

Not on Peppol Peppol

Not registered in the Peppol network, mandatory for VAT-liable companies since 1 January 2026.

Financials

Financial year 2025

DR. KLAUS DE CLEYN, GYNAECOLOGIE from Sint-Niklaas, company number BE0457393897, closed financial year 2025 with a result of € 221,605 after tax. For that financial year DR. KLAUS DE CLEYN, GYNAECOLOGIE recorded a gross margin of € 449,656 and equity of € 2.4 million. Compared with financial year 2024, the result moved from € 221,342 to € 221,605. 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 January 12, 2026.

What it is worth Growing

€ 2.4 million

▲ 10% vs 2024

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

Profit Growing

€ 221,605

Profit after tax over the fiscal year.

Cash in the bank

€ 426,170

▲ 86% 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 € 1.8 million.

People and assets in 2025

Vehicles and equipment

€ 107,861

▼ 20% vs 2024

Of which on lease € 100,890.

Debts at end 2025

Bank debt

None

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

Owed to suppliers

€ 56

▲ 92% vs 2024

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

Taxes

€ 37,740

▲ 45% 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)
	2022	2023	2024	2025	Change 2024 → 2025
Gross margin	€ 375,439 Gross margin 2022: € 375,439 First fiscal year in the series	€ 382,751 Gross margin 2023: € 382,751 ▲ 2% vs 2022 (€ 375,439) Favourable step	€ 425,995 Gross margin 2024: € 425,995 ▲ 11% vs 2023 (€ 382,751) Favourable step	€ 449,656 Gross margin 2025: € 449,656 ▲ 6% vs 2024 (€ 425,995) Favourable step	▲ 6%
Profit after taxes	€ 135,945 Profit after taxes 2022: € 135,945 First fiscal year in the series	€ 174,022 Profit after taxes 2023: € 174,022 ▲ 28% vs 2022 (€ 135,945) Favourable step	€ 221,342 Profit after taxes 2024: € 221,342 ▲ 27% vs 2023 (€ 174,022) Favourable step	€ 221,605 Profit after taxes 2025: € 221,605 Unchanged (€ 221,342) Favourable step
Equity	€ 1,762,843 Equity 2022: € 1,762,843 First fiscal year in the series	€ 1,936,864 Equity 2023: € 1,936,864 ▲ 10% vs 2022 (€ 1,762,843) Favourable step	€ 2,158,207 Equity 2024: € 2,158,207 ▲ 11% vs 2023 (€ 1,936,864) Favourable step	€ 2,379,812 Equity 2025: € 2,379,812 ▲ 10% vs 2024 (€ 2,158,207) Favourable step	▲ 10%
Total debts	€ 283,308 Total debts 2022: € 283,308 First fiscal year in the series	€ 294,619 Total debts 2023: € 294,619 ▲ 4% vs 2022 (€ 283,308) Unfavourable step	€ 268,624 Total debts 2024: € 268,624 ▼ 9% vs 2023 (€ 294,619) Favourable step	€ 177,162 Total debts 2025: € 177,162 ▼ 34% vs 2024 (€ 268,624) Favourable step	▼ 34%
Cash	€ 170,735 Cash 2022: € 170,735 First fiscal year in the series	€ 227,875 Cash 2023: € 227,875 ▲ 33% vs 2022 (€ 170,735) Favourable step	€ 229,070 Cash 2024: € 229,070 ▲ 1% vs 2023 (€ 227,875) Favourable step	€ 426,170 Cash 2025: € 426,170 ▲ 86% vs 2024 (€ 229,070) Favourable step	▲ 86%
Land & buildings	€ 766,260 Land & buildings 2022: € 766,260 First fiscal year in the series	€ 732,002 Land & buildings 2023: € 732,002 ▼ 4% vs 2022 (€ 766,260) Unchanged	€ 744,963 Land & buildings 2024: € 744,963 ▲ 2% vs 2023 (€ 732,002) Unchanged	€ 711,728 Land & buildings 2025: € 711,728 ▼ 4% vs 2024 (€ 744,963) Unchanged	▼ 4%
Retained profit	€ 1,148,418 Retained profit 2022: € 1,148,418 First fiscal year in the series	€ 1,322,439 Retained profit 2023: € 1,322,439 ▲ 15% vs 2022 (€ 1,148,418) Favourable step	€ 1,543,782 Retained profit 2024: € 1,543,782 ▲ 17% vs 2023 (€ 1,322,439) Favourable step	€ 1,765,387 Retained profit 2025: € 1,765,387 ▲ 14% vs 2024 (€ 1,543,782) Favourable step	▲ 14%
Balance sheet total	€ 2,088,605 Balance sheet total 2022: € 2,088,605 First fiscal year in the series	€ 2,270,536 Balance sheet total 2023: € 2,270,536 ▲ 9% vs 2022 (€ 2,088,605) Unchanged	€ 2,462,481 Balance sheet total 2024: € 2,462,481 ▲ 8% vs 2023 (€ 2,270,536) Unchanged	€ 2,589,222 Balance sheet total 2025: € 2,589,222 ▲ 5% vs 2024 (€ 2,462,481) Unchanged	▲ 5%

Key figures of DR. KLAUS DE CLEYN, GYNAECOLOGIE, fiscal years 2022 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 DR. KLAUS DE CLEYN, GYNAECOLOGIE?

What happened at DR. KLAUS DE CLEYN, GYNAECOLOGIE in recent years, according to the Belgian Official Gazette, the CBE and the National Bank:

Jan 12, 2026 New annual accounts for financial year 2025: profit of € 221,605. Source: NBB ↗
Mar 2, 1996 New establishment in Sint-Niklaas. KBO
Mar 2, 1996 Start of the company according to the CBE. KBO

In short

From € 135,945 profit in 2022 to € 221,605 profit in 2025.

Paid € 360,951 in corporate taxes since 2022.

Best year ever: 2025, with € 221,605 profit.

Original PDFs at the National Bank ↗

A new publication or filing at DR. KLAUS DE CLEYN, GYNAECOLOGIE? 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

Klaus De Cleyn

DR. KLAUS DE CLEYN, GYNAECOLOGIE

Behind DR. KLAUS DE CLEYN, GYNAECOLOGIE is Klaus De Cleyn.

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Directors

According to the 2025 annual accounts

Klaus De Cleyn

Director

Establishments

Establishment units

Physical locations of this company

Registered office

Heidebaan 55

9100 Sint-Niklaas

Who else lives here?

A building full of entrepreneurs or one very busy letterbox? Another 3 companies are registered at this address.

All companies at this address →

Gynaecologie VITAZ

TANDARTS FARIDA PROVOST

€ 138,314 gross margin · 2025

TANDARTS JUSTINE HAESEVOETS BV

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

Details

Company number: 0457.393.897
VAT number: BE 0457.393.897
Registered office: Heidebaan 55, 9100 Sint-Niklaas
Names & denominations: DR. KLAUS DE CLEYN, GYNAECOLOGIE
Enterprise type: Rechtspersoon
Legal form: Private limited company
Legal situation: Normale toestand
Start date: 2 March 1996
Peppol: Not registered

View on CBE Public ↗ Annual accounts (NBB) ↗