Warning lights
Signals from the annual accounts, the CBE and the Official Gazette, each with its threshold and source. No score, no verdict.
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Negative equity NBB
More debt than assets in 2 of the last 4 fiscal years.
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Two loss years in a row NBB
Negative result in 2024 and 2025.
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Tight liquidity NBB
Cash and receivables cover 0 % of short-term debt in 2025; threshold 65 %.
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Busy address KBO
21 other companies have their registered office at the same address; threshold 10.
Financials
Financial year 2025
THONISSENLAAN 20 from Alken, company number BE0778619394, closed financial year 2025 with a result of € -263,354 after tax. For that financial year THONISSENLAAN 20 recorded a gross margin of € 280,087 and equity of € -381,778. Compared with financial year 2024, the result moved from € -358,633 to € -263,354. 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 June 5, 2026.
€ -381,778
▼ € 263,354 vs 2024
Assets minus debts, by the books. What is left if everything were sold and paid today.
€ -263,354
▲ 27 % less loss than in 2024
Profit after tax over the fiscal year.
€ 7,218
▲ 130% vs 2024
Cash and bank balances on the last day of the fiscal year.
Loss, nothing to pay out
Reserves fell to € -881,778.
Debts at end 2025
€ 6 million
▼ 3% vs 2024
€ 260,794 is repaid this year. At this pace the long-term loan is gone in ≈ 23 years.
€ 3.8 million
▼ 1% vs 2024
Supplier invoices still open on the last day of the fiscal year.
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| 2022 | 2023 | 2024 | 2025 | Change 2024 → 2025 | |
|---|---|---|---|---|---|
| Gross margin | € 69,471 | € 18,324 | € -23,381 | € 280,087 | ▲ € 303,468 |
| Profit after taxes | € -128,942 | € -130,849 | € -358,633 | € -263,354 | ▲ € 95,279 |
| Equity | € 371,058 | € 240,208 | € -118,425 | € -381,778 | ▼ € 263,354 |
| Total debts | € 4,317,108 | € 4,859,768 | € 10,930,161 | € 10,970,577 | |
| Cash | € 49,397 | € 60,344 | € 3,142 | € 7,218 | ▲ 130% |
| Land & buildings | € 4,636,097 | € 4,568,338 | € 10,807,741 | € 10,559,722 | ▼ 2% |
| Retained profit | € -128,942 | € -259,792 | € -618,425 | € -881,778 | ▼ € 263,354 |
| Bank debt | € 3,232,402 | € 3,380,288 | € 6,200,000 | € 6,009,220 | ▼ 3% |
| Balance sheet total | € 4,688,165 | € 5,099,977 | € 10,811,737 | € 10,588,799 | ▼ 2% |
Key figures of THONISSENLAAN 20, 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 THONISSENLAAN 20?
What happened at THONISSENLAAN 20 in recent years, according to the Belgian Official Gazette, the CBE and the National Bank:
- Siedeco BV stepped down as director. NBB
- Dekco BV stepped down as director. NBB
- Vicco BV stepped down as director. NBB
- Dethier Dries Consulting - vkt DEDRICO BV stepped down as director. NBB
- New annual accounts for financial year 2025: loss of € 263,354. Source: NBB ↗
- New establishment in Alken. KBO
- Siedeco BV became a director. NBB
- Dekco BV became a director. NBB
In short
From € 128,942 loss in 2022 to € 263,354 loss in 2025.
A new publication or filing at THONISSENLAAN 20? 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
The stake of IMMO DETHIER comes from that shareholder’s own annual accounts; small companies do not report their shareholders themselves.
THONISSENLAAN 20The shares are held by IMMO DETHIER (100%).
Directors
According to the 2025 annual accounts
Director · represented by Siemen Dethier
Also active at: BOUWBEDRIJF DETHIER, IMMO DETHIER, EDEVA, IMMO KOLMEN, DETHIER ONTWIKKELING, SARCHINIUM, Rosmolen, EENDRACHT29 +1 more
since 2021 · until 2027
Managing director · represented by Kevin Dethier
Also active at: IMMO DETHIER, ROB DETHIER CONSULTING, LEOPOLD, IMMO KOLMEN, DETHIER ONTWIKKELING, SARCHINIUM, Rosmolen, EENDRACHT29 +1 more
since 2021 · until 2027
Managing director · represented by Vicky Dethier
Also active at: BOUWBEDRIJF DETHIER, IMMO DETHIER, ROB DETHIER CONSULTING, LEOPOLD, IMMO KOLMEN, DETHIER ONTWIKKELING, SARCHINIUM, Conneqtr +3 more
since 2021 · until 2027
Dethier Dries Consulting - vkt DEDRICO BV
Director · represented by Dries Dethier
Also active at: IMMO DETHIER, EDEVA, IMMO KOLMEN, DETHIER ONTWIKKELING, SARCHINIUM, EENDRACHT29, CURINGE INVEST
since 2021 · until 2027
Shareholders
100%
Participations
No participations in other companies reported.
Establishments
Establishment units
Physical locations of this company
Industrieterrein Kolmen 1107
3570 Alken
Who else lives here?
A building full of entrepreneurs or one very busy letterbox? Another 21 companies are registered at this address.
All companies at this address →BOUWBEDRIJF DETHIER same network
€ 66.8 million revenue · 2025
IMMO DETHIER same network
€ 4.8 million gross margin · 2025
ROB DETHIER CONSULTING same network
€ 198,850 revenue · 2025
IMMO KOLMEN same network
€ 1 million gross margin · 2025
DETHIER ONTWIKKELING same network
€ 1.2 million gross margin · 2025
+16 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
- 0778.619.394
- VAT number
- BE 0778.619.394
- Registered office
- Industrieterrein Kolmen 1107, 3570 Alken
- Names & denominations
- THONISSENLAAN 20
- Enterprise type
- Rechtspersoon
- Legal form
- Public limited company
- Legal situation
- Normale toestand
- Start date
- 14 December 2021
- Peppol
- Active · Active since 26 May 2026
- Activities · NACE
Verhuur en exploitatie van eigen of geleased residentieel onroerend goed, exclusief sociale woningen
Verhuur en exploitatie van eigen of geleased niet-residentieel onroerend goed, exclusief terreinen