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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Busy address KBO
11 other companies have their registered office at the same address; threshold 10.
Financials
Financial year 2026
Mattax Seco & Partner'S from Chaumont-Gistoux, company number BE0427549868, closed financial year 2026 with a result of € 92,808 after tax. For that financial year Mattax Seco & Partner'S recorded a gross margin of € 164,712 and equity of € 35,569. Compared with financial year 2025, the result moved from € 70,752 to € 92,808. Profitable, and profit is growing. The buffer shrank hard: equity is 72 % below last year. High debts against a small own buffer. The most recent annual accounts were filed with the National Bank of Belgium on May 27, 2026.
€ 35,569
▼ 72% vs 2025
Assets minus debts, by the books. What is left if everything were sold and paid today.
€ 92,808
▲ 31% vs 2025
Profit after tax over the fiscal year.
€ 94,122
▲ 50% vs 2025
Cash and bank balances on the last day of the fiscal year.
€ 182,500 paid out
More than the year’s profit went to the shareholders; reserves fell.
People and assets in 2026
≈ 1
No payroll staff. One director, so that person most likely runs the business.
€ 35,207
▲ 1% vs 2025
Payroll staff only. What the director pays themselves is already netted into the gross margin and is not shown separately in the accounts.
€ 36,857
▼ 23% vs 2025
Book value of vehicles, furniture and equipment.
Debts at end 2026
None
No bank loans on the last day of the fiscal year.
€ 59,712
▼ 25% vs 2025
Supplier invoices still open on the last day of the fiscal year.
€ 27,242
▲ 51% vs 2025
Taxes, VAT and social contributions still to pay.
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| 2023 | 2024 | 2025 | 2026 | Change 2025 → 2026 | |
|---|---|---|---|---|---|
| Gross margin | € 114,499 | € 214,467 | € 129,641 | € 164,712 | ▲ 27% |
| Profit after taxes | € 55,962 | € 126,228 | € 70,752 | € 92,808 | ▲ 31% |
| Equity | € 68,280 | € 154,509 | € 125,261 | € 35,569 | ▼ 72% |
| Total debts | € 238,028 | € 160,736 | € 255,470 | € 279,383 | ▲ 9% |
| Cash | € 82,261 | € 45,109 | € 62,922 | € 94,122 | ▲ 50% |
| Retained profit | € 48,280 | € 134,509 | € 105,261 | € 15,569 | ▼ 85% |
| Dividend | € 60,000 | € 40,000 | € 100,000 | € 182,500 | ▲ 83% |
| Balance sheet total | € 306,308 | € 315,245 | € 380,731 | € 314,952 | ▼ 17% |
| Employees (FTE) | - | 0.6 | 0.6 | 0.6 |
Key figures of Mattax Seco & Partner'S, fiscal years 2023 to 2026, from the annual accounts filed with the National Bank of Belgium.Next annual account (fiscal year 2027) expected before 31 October 2027.
What happened to Mattax Seco & Partner'S?
What happened at Mattax Seco & Partner'S in recent years, according to the Belgian Official Gazette, the CBE and the National Bank:
- New annual accounts for financial year 2026: profit of € 92,808 (▲ 31% vs 2025). Source: NBB ↗
- New establishment in Chaumont-Gistoux. KBO
- Luc JANSSEN became a director. NBB
- New establishment in Wavre. KBO
- Start of the company according to the CBE. KBO
In short
From € 55,962 profit in 2023 to € 92,808 profit in 2026.
Paid € 124,438 in corporate taxes since 2023.
Best year ever: 2024, with € 126,228 profit.
Paid out € 382,500 in dividends to the owners in total.
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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 Seco Holding & Management comes from that shareholder’s own annual accounts; small companies do not report their shareholders themselves.
Mattax Seco & Partner'SBehind Mattax Seco & Partner'S is Luc JANSSEN. The shares are held by Seco Holding & Management (100%).
Directors
According to the 2026 annual accounts
Luc JANSSEN
Director
Also active at: SECO - INVEST, belgian consultancy & partnership in business, Seco Holding & Management
since 2011
Shareholders
Participations
No participations in other companies reported.
Establishments
Establishment units
Physical locations of this company
Rue du Moulin,Dion-V. 31
1325 Chaumont-Gistoux
Rue de Genval 20
1301 Wavre
Active since 17 April 2002
Who else lives here?
A building full of entrepreneurs or one very busy letterbox? Another 11 companies are registered at this address.
All companies at this address →Big4 & Partners
€ 150,357 gross margin · 2025
Mattax Bruxelles Sud
€ 380,771 gross margin · 2024
Mattax Accounting
€ 475,808 gross margin · 2025
Mattax Real Estate
€ 84,458 gross margin · 2025
Mattax LLN
€ 526,592 gross margin · 2025
+6 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
- 0427.549.868
- VAT number
- BE 0427.549.868
- Registered office
- Rue du Moulin,Dion-V. 31, 1325 Chaumont-Gistoux
- Names & denominations
- Mattax Seco & Partner'S
- Enterprise type
- Rechtspersoon
- Legal form
- Private limited company
- Legal situation
- Normale toestand
- Start date
- 1 July 1985
- Peppol
- Active · Active since 2 Jun 2026
- Contact
- 02/8886428
- Activities · NACE
Activiteiten van (gecertificeerde) (fiscaal) accountants
Boekhouders en boekhouders-fiscalisten