Warning lights
Signals from the annual accounts, the CBE and the Official Gazette, each with its threshold and source. No score, no verdict.
-
Negative equity NBB
More debt than assets in 1 of the last 2 fiscal years.
-
Tight liquidity NBB
Cash and receivables cover 20 % of short-term debt in 2025; threshold 65 %.
Financials
Financial year 2025
SIAU from Dendermonde, company number BE0805326563, closed financial year 2025 with a result of € -12,505 after tax. For that financial year SIAU recorded a gross margin of € 3,330 and equity of € -8,212. Compared with financial year 2024, the result moved from € 2,293 to € -12,505. The company made a loss. More debts than assets. High debts against a small own buffer. The most recent annual accounts were filed with the National Bank of Belgium on April 8, 2026.
€ -8,212
▼ € 12,505 vs 2024
Assets minus debts, by the books. What is left if everything were sold and paid today.
€ -12,505
▼ still € 2,293 profit in 2024
Profit after tax over the fiscal year.
€ 579
▼ 93% vs 2024
Cash and bank balances on the last day of the fiscal year.
Loss, nothing to pay out
Reserves fell to € -10,212.
People and assets in 2025
≈ 1
No payroll staff. One director, so that person most likely runs the business.
€ 20,826
Book value of vehicles, furniture and equipment.
Debts at end 2025
€ 203,135
€ 15,245 is repaid this year. At this pace the long-term loan is gone in ≈ 13 years.
€ 35,182
▲ 65% vs 2024
Supplier invoices still open on the last day of the fiscal year.
€ 4,732
▲ 131% vs 2024
Corporate tax and VAT still to pay. No wage debt: nothing outstanding to staff or social security.
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| 2024 | 2025 | Change 2024 → 2025 | |
|---|---|---|---|
| Gross margin | € 4,318 | € 3,330 | ▼ 23% |
| Profit after taxes | € 2,293 | € -12,505 | ▼ € 14,798 |
| Equity | € 4,293 | € -8,212 | ▼ € 12,505 |
| Total debts | € 45,754 | € 259,805 | ▲ € 214,050 |
| Cash | € 8,788 | € 579 | ▼ 93% |
| Land & buildings | - | € 201,142 | |
| Retained profit | € 2,293 | € -10,212 | ▼ € 12,505 |
| Bank debt | € 0 | € 203,135 | |
| Balance sheet total | € 50,047 | € 251,592 | ▲ € 201,545 |
Key figures of SIAU, fiscal years 2024 to 2025, from the annual accounts filed with the National Bank of Belgium.Next annual account (fiscal year 2026) expected before 30 April 2027.
What happened to SIAU?
What happened at SIAU in recent years, according to the Belgian Official Gazette, the CBE and the National Bank:
- New annual accounts for financial year 2025: loss of € 12,505 (▼ € 14,798 vs 2024). Source: NBB ↗
- New establishment in Dendermonde. KBO
- JULIE SIAU became a director. NBB
- Start of the company according to the CBE. KBO
In short
From € 2,293 profit in 2024 to € 12,505 loss in 2025.
Paid € 1,603 in corporate taxes since 2024.
Best year ever: 2024, with € 2,293 profit.
A new publication or filing at SIAU? We notify you, reason included.
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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
Management
Behind SIAU is JULIE SIAU. JULIE SIAU is also behind De Graeve - Siau.
Directors
According to the 2025 annual accounts
since 2023
Establishments
Establishment units
Physical locations of this company
Kazernestraat (DEN) 20
9200 Dendermonde
What is an establishment unit? An establishment unit is a geographically identifiable place where activities of the enterprise are carried out.
Details
- Company number
- 0805.326.563
- VAT number
- BE 0805.326.563
- Registered office
- Kazernestraat (DEN) 20, 9200 Dendermonde
- Names & denominations
- SIAU
- Enterprise type
- Rechtspersoon
- Legal form
- Private limited company
- Legal situation
- Normale toestand
- Start date
- 31 August 2023
- Peppol
- Active · Active since 16 Jul 2025
- Activities · NACE
Installatie van verwarming, klimaatregeling, koeling en ventilatie aangedreven door elektriciteit