What does Dr. Sarien Mertens do?

Dr. Sarien Mertens is a specialist medical practice in Tremelo. Private Limited, started on 8 June 2023, 1 establishment.

What is the address of Dr. Sarien Mertens?

The registered office of Dr. Sarien Mertens is located at Boterstraat 22, 3120 Tremelo.

Is Dr. Sarien Mertens still active?

Yes. According to the CBE (15 November 2026) Dr. Sarien Mertens is active, legal situation “Normale toestand”, started on 8 June 2023.

Is Dr. Sarien Mertens registered on Peppol?

Yes, Dr. Sarien Mertens is registered on the Peppol network with ID 0208:0802531082.

What is the enterprise number of Dr. Sarien Mertens?

The enterprise number of Dr. Sarien Mertens is BE0802531082.

When was Dr. Sarien Mertens founded?

Dr. Sarien Mertens was founded on 8 June 2023.

Who are the directors of Dr. Sarien Mertens?

According to the 2025 annual accounts, the directors of Dr. Sarien Mertens are: SARIEN MERTENS.

Is Dr. Sarien Mertens a reliable company?

Databakkes does not pass judgement; this is what the sources say: Active according to the CBE since 8 June 2023; 3 annual accounts filed, latest fiscal year 2025; 1 directors known from the annual account; 1 events from the Belgian Official Gazette processed.

How much profit did Dr. Sarien Mertens make in 2025?

Dr. Sarien Mertens posted a profit after taxes of € 76,377 in financial year 2025.

What is the revenue of Dr. Sarien Mertens?

As a small company, Dr. Sarien Mertens is not required to publish revenue in its annual accounts. In financial year 2025, its added value was € 108,434.

Dr. Sarien Mertens (Private Limited) - Tremelo

Dossier Dr. Sarien Mertens, printed on 15 November 2026 from databakkes.be/en/0802531082/dr-sarien-mertens. Sources: CBE, National Bank of Belgium, Belgian Official Gazette.

Financials

Financial year 2025

Dr. Sarien Mertens from Tremelo, company number BE0802531082, closed financial year 2025 with a result of € 76,377 after tax. For that financial year Dr. Sarien Mertens recorded a gross margin of € 108,434 and equity of € 198,186. Compared with financial year 2024, the result moved from € 63,032 to € 76,377. 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 May 29, 2026.

What it is worth Growing

€ 198,186

▲ 63% vs 2024

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

Profit Growing

€ 76,377

▲ 21% vs 2024

Profit after tax over the fiscal year.

Cash in the bank

€ 144,673

▲ 149% 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 € 195,186.

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

€ 31,589

▼ 29% 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

€ 1,506

▼ 47% vs 2024

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

Taxes

€ 19,350

▲ 21% vs 2024

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

Key figures per fiscal year
	2023	2024	2025	Change 2024 → 2025
Gross margin	€ 78,222 Gross margin 2023: € 78,222 First fiscal year in the series	€ 93,701 Gross margin 2024: € 93,701 ▲ 20% vs 2023 (€ 78,222) Favourable step	€ 108,434 Gross margin 2025: € 108,434 ▲ 16% vs 2024 (€ 93,701) Favourable step	▲ 16%
Profit after taxes	€ 55,778 Profit after taxes 2023: € 55,778 First fiscal year in the series	€ 63,032 Profit after taxes 2024: € 63,032 ▲ 13% vs 2023 (€ 55,778) Favourable step	€ 76,377 Profit after taxes 2025: € 76,377 ▲ 21% vs 2024 (€ 63,032) Favourable step	▲ 21%
Equity	€ 58,778 Equity 2023: € 58,778 First fiscal year in the series	€ 121,809 Equity 2024: € 121,809 ▲ 107% vs 2023 (€ 58,778) Favourable step	€ 198,186 Equity 2025: € 198,186 ▲ 63% vs 2024 (€ 121,809) Favourable step	▲ 63%
Total debts	€ 39,906 Total debts 2023: € 39,906 First fiscal year in the series	€ 18,872 Total debts 2024: € 18,872 ▼ 53% vs 2023 (€ 39,906) Favourable step	€ 20,856 Total debts 2025: € 20,856 ▲ 11% vs 2024 (€ 18,872) Unfavourable step	▲ 11%
Cash	€ 33,699 Cash 2023: € 33,699 First fiscal year in the series	€ 58,058 Cash 2024: € 58,058 ▲ 72% vs 2023 (€ 33,699) Favourable step	€ 144,673 Cash 2025: € 144,673 ▲ 149% vs 2024 (€ 58,058) Favourable step	▲ 149%
Retained profit	€ 55,778 Retained profit 2023: € 55,778 First fiscal year in the series	€ 118,809 Retained profit 2024: € 118,809 ▲ 113% vs 2023 (€ 55,778) Favourable step	€ 195,186 Retained profit 2025: € 195,186 ▲ 64% vs 2024 (€ 118,809) Favourable step	▲ 64%
Balance sheet total	€ 98,684 Balance sheet total 2023: € 98,684 First fiscal year in the series	€ 140,682 Balance sheet total 2024: € 140,682 ▲ 43% vs 2023 (€ 98,684) Unchanged	€ 219,042 Balance sheet total 2025: € 219,042 ▲ 56% vs 2024 (€ 140,682) Unchanged	▲ 56%

By gross margin, Dr. Sarien Mertens ranks 5th of 5 companies with main activity “Activiteiten van medisch specialisten” in Tremelo that publish figures (fiscal year 2025).

Key figures of Dr. Sarien Mertens, fiscal years 2023 to 2025, from the annual accounts filed with the National Bank of Belgium.Next annual account (fiscal year 2026) expected before 31 July 2027.

Ask about Dr. Sarien Mertens the way you would ask their accountant.

Answers from the filed annual accounts, the Belgian Official Gazette and the CBE register.

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What happened to Dr. Sarien Mertens?

What happened at Dr. Sarien Mertens in recent years, according to the Belgian Official Gazette, the CBE and the National Bank:

May 29, 2026 New annual accounts for financial year 2025: profit of € 76,377 (▲ 21% vs 2024). Source: NBB ↗
Jun 12, 2023 Incorporation, published in the Gazette. Source: Staatsblad ↗
Jun 8, 2023 New establishment in Tremelo. KBO
2023 SARIEN MERTENS became a director. NBB

In short

From € 55,778 profit in 2023 to € 76,377 profit in 2025.

Paid € 49,555 in corporate taxes since 2023.

Best year ever: 2025, with € 76,377 profit.

Original PDFs at the National Bank ↗

Management

SARIEN MERTENS

Dr. Sarien Mertens

Behind Dr. Sarien Mertens is SARIEN MERTENS.

Directors

According to the 2025 annual accounts

SARIEN MERTENS

Director

since 2023

Establishments

Establishment units

Physical locations of this company

Registered office

Boterstraat 22

3120 Tremelo

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

Similar companies in Tremelo

Same main activity (Activiteiten van medisch specialisten), 4 active companies in Tremelo, largest first.

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DEBRUYNE FREDERIK

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All companies with this activity → Largest companies in Tremelo →

Shareholders according to the Official Gazette deeds

Who contributed at incorporation and at capital increases, with the deed as source. Later share transfers are not published in the Gazette.

Incorporation

12 June 2023 Source: Deed ↗

MERTENS Sarien Marleen Karel(oprichter) 100%

Details

Company number: 0802.531.082
VAT number: BE 0802.531.082
Registered office: Boterstraat 22, 3120 Tremelo
Names & denominations: Dr. Sarien Mertens
Enterprise type: Rechtspersoon
Legal form: Private limited company
Legal situation: Normale toestand
Start date: 8 June 2023
Peppol: Active · Active since 21 Oct 2026
Activities · NACE: Activiteiten van medisch specialisten

View on CBE Public ↗ Annual accounts (NBB) ↗