What does FORTSIOR do?

FORTSIOR is a civil engineering contractor in Oostende. Private Limited, started on 17 October 2016, 1 establishment.

What is the address of FORTSIOR?

The registered office of FORTSIOR is located at Jacobsenstraat 7, 8400 Oostende.

Is FORTSIOR still active?

Yes. According to the CBE (29 October 2026) FORTSIOR is active, legal situation “Normale toestand”, started on 17 October 2016.

Is FORTSIOR registered on Peppol?

Yes, FORTSIOR is registered on the Peppol network with ID 0208:0664686164.

What is the enterprise number of FORTSIOR?

The enterprise number of FORTSIOR is BE0664686164.

When was FORTSIOR founded?

FORTSIOR was founded on 17 October 2016.

Who are the directors of FORTSIOR?

According to the 2025 annual accounts, the directors of FORTSIOR are: Corbeau Development Services BV, Bruno PIERS.

Is FORTSIOR a reliable company?

Databakkes does not pass judgement; this is what the sources say: Active according to the CBE since 17 October 2016; 5 annual accounts filed, latest fiscal year 2025; 2 directors known from the annual account.

How much profit did FORTSIOR make in 2025?

FORTSIOR posted a profit after taxes of € 3,587 in financial year 2025.

What is the revenue of FORTSIOR?

As a small company, FORTSIOR is not required to publish revenue in its annual accounts. In financial year 2025, its added value was € -2,466.

FORTSIOR (Private Limited) - Oostende - BE0664686164

Dossier FORTSIOR, printed on 29 October 2026 from databakkes.be/en/0664686164/fortsior. Sources: CBE, National Bank of Belgium, Belgian Official Gazette.

Financials

Financial year 2025

FORTSIOR from Oostende, company number BE0664686164, closed financial year 2025 with a result of € 3,587 after tax. For that financial year FORTSIOR recorded a gross margin of € -2,466 and equity of € 355,518. Compared with financial year 2024, the result moved from € 133,282 to € 3,587. 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 August 27, 2026.

What it is worth Growing

€ 355,518

▲ 1% vs 2024

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

Profit Healthy

€ 3,587

▼ 97% vs 2024

Profit after tax over the fiscal year.

Cash in the bank

€ 63,116

▼ 1% 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 € 305,518.

Debts at end 2025

Bank debt

None

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

Owed to suppliers

€ 5,513

▼ 1% vs 2024

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

Taxes

€ 825

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)
	2022	2023	2024	2025	Change 2024 → 2025
Gross margin	€ 146,062 Gross margin 2022: € 146,062 First fiscal year in the series	€ -12,704 Gross margin 2023: € -12,704 ▼ € 158,766 vs 2022 (€ 146,062) Unfavourable step	€ 2,805 Gross margin 2024: € 2,805 ▲ € 15,509 vs 2023 (€ -12,704) Favourable step	€ -2,466 Gross margin 2025: € -2,466 ▼ € 5,271 vs 2024 (€ 2,805) Unfavourable step	▼ € 5,271
Profit after taxes	€ 106,528 Profit after taxes 2022: € 106,528 First fiscal year in the series	€ -9,320 Profit after taxes 2023: € -9,320 ▼ € 115,848 vs 2022 (€ 106,528) Unfavourable step	€ 133,282 Profit after taxes 2024: € 133,282 ▲ € 142,602 vs 2023 (€ -9,320) Favourable step	€ 3,587 Profit after taxes 2025: € 3,587 ▼ 97% vs 2024 (€ 133,282) Unfavourable step	▼ 97%
Equity	€ 227,968 Equity 2022: € 227,968 First fiscal year in the series	€ 218,648 Equity 2023: € 218,648 ▼ 4% vs 2022 (€ 227,968) Unfavourable step	€ 351,931 Equity 2024: € 351,931 ▲ 61% vs 2023 (€ 218,648) Favourable step	€ 355,518 Equity 2025: € 355,518 ▲ 1% vs 2024 (€ 351,931) Favourable step	▲ 1%
Total debts	€ 66,628 Total debts 2022: € 66,628 First fiscal year in the series	€ 48,343 Total debts 2023: € 48,343 ▼ 27% vs 2022 (€ 66,628) Favourable step	€ 5,596 Total debts 2024: € 5,596 ▼ 88% vs 2023 (€ 48,343) Favourable step	€ 6,338 Total debts 2025: € 6,338 ▲ 13% vs 2024 (€ 5,596) Unfavourable step	▲ 13%
Cash	€ 206,878 Cash 2022: € 206,878 First fiscal year in the series	€ 103,411 Cash 2023: € 103,411 ▼ 50% vs 2022 (€ 206,878) Unfavourable step	€ 63,546 Cash 2024: € 63,546 ▼ 39% vs 2023 (€ 103,411) Unfavourable step	€ 63,116 Cash 2025: € 63,116 ▼ 1% vs 2024 (€ 63,546) Unfavourable step	▼ 1%
Retained profit	€ 177,968 Retained profit 2022: € 177,968 First fiscal year in the series	€ 168,648 Retained profit 2023: € 168,648 ▼ 5% vs 2022 (€ 177,968) Unfavourable step	€ 301,931 Retained profit 2024: € 301,931 ▲ 79% vs 2023 (€ 168,648) Favourable step	€ 305,518 Retained profit 2025: € 305,518 ▲ 1% vs 2024 (€ 301,931) Favourable step	▲ 1%
Balance sheet total	€ 296,722 Balance sheet total 2022: € 296,722 First fiscal year in the series	€ 269,117 Balance sheet total 2023: € 269,117 ▼ 9% vs 2022 (€ 296,722) Unchanged	€ 359,652 Balance sheet total 2024: € 359,652 ▲ 34% vs 2023 (€ 269,117) Unchanged	€ 363,981 Balance sheet total 2025: € 363,981 ▲ 1% vs 2024 (€ 359,652) Unchanged	▲ 1%

Key figures of FORTSIOR, 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 FORTSIOR?

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

Aug 27, 2026 New annual accounts for financial year 2025: profit of € 3,587 (▼ 97% vs 2024). filed late Source: NBB ↗
2024 Corbeau Development Services BV became a director. NBB
2023 Bruno PIERS became a director. NBB
Oct 17, 2016 New establishment in Oostende. KBO
Oct 17, 2016 Start of the company according to the CBE. KBO

In short

From € 106,528 profit in 2022 to € 3,587 profit in 2025.

Paid € 36,816 in corporate taxes since 2022.

Best year ever: 2024, with € 133,282 profit.

Original PDFs at the National Bank ↗

Management

Corbeau Development Services BV

Bruno PIERS

FORTSIOR

Alivonne 25%

Behind FORTSIOR are Corbeau Development Services BV and Bruno PIERS. It owns 25% of Alivonne itself.

Directors

According to the 2025 annual accounts

Corbeau Development Services BV

Director · represented by Nicolas van Ravels

Also active at: Alivonne

since 2024

Bruno PIERS

Director

Also active at: PREMIERS, SIBL-INC, PIERS

since 2023

Establishments

Establishment units

Physical locations of this company

Registered office

Jacobsenstraat 7

8400 Oostende

Who else lives here?

A building full of entrepreneurs or one very busy letterbox? Another 8 companies are registered at this address.

All companies at this address →

Alivonne same network

€ -108,179 gross margin · 2025

VISTA POINT GROUP

€ 834 gross margin · 2025

CORBEAU TERRA FORM I

€ -656 gross margin · 2025

CORBEAU TERRA FORM II

€ 311,577 gross margin · 2025

CORBEAU TERRA NOVA I

€ 694,941 gross margin · 2025

+3 more

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

Details

Company number

0664.686.164

VAT number

BE 0664.686.164

Registered office

Jacobsenstraat 7, 8400 Oostende

Names & denominations

FORTSIOR

Enterprise type

Rechtspersoon

Legal form

Private limited company

Legal situation

Normale toestand

Start date

17 October 2016

Peppol

Active · Active since 30 Dec 2025

Activities · NACE

Bouw van andere civieltechnische werken, neg

Handel in eigen onroerend goed

View on CBE Public ↗ Annual accounts (NBB) ↗

FORTSIOR

Financials

What happened to FORTSIOR?

Management

Directors

Establishments

Establishment units

Who else lives here?

Details

Frequently asked questions