Active · per the CBE, 30 September 2026

KASTELLUM

BE0773701197

Rechtspersoon Private limited company 1 establishment

KASTELLUM is a management company in Deinze. Private Limited, started on 9 September 2021, 1 establishment.

Lostraat 70, 9850 Deinze

Behind the company: Dimitri Martens.

Active for

5 year

Financials

Financial year 2025

KASTELLUM from Deinze, company number BE0773701197, closed financial year 2025 with a result of € 74,723 after tax. For that financial year KASTELLUM recorded a gross margin of € 99,772 and equity of € 41,723. Compared with financial year 2024, the result moved from € 54,428 to € 74,723. Profitable, and profit is growing. The buffer shrank hard: equity is 75 % below last year. Debts are under control. The most recent annual accounts were filed with the National Bank of Belgium on June 29, 2026.

What it is worth Shrank hard

€ 41,723

▼ 75% vs 2024

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

Profit Growing

€ 74,723

▲ 37% vs 2024

Profit after tax over the fiscal year.

Cash in the bank

€ 65,128

▼ 50% vs 2024

Cash and bank balances on the last day of the fiscal year.

Where the profit goes Pays out

€ 202,391 paid out

More than the year’s profit went to the shareholders; reserves fell.

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

€ 2,246

▲ 13% 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

€ 14,879

▼ 6% vs 2024

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

Taxes and wages

€ 14,255

▲ 32% vs 2024

Taxes, VAT and social contributions still to pay.

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Key figures per fiscal year Download key figures (CSV)
2022202320242025Change 2024 → 2025
Gross margin € 39,392 € 90,764 € 69,164 € 99,772 ▲ 44%
Profit after taxes € 28,467 € 64,487 € 54,428 € 74,723 ▲ 37%
Equity € 50,477 € 114,963 € 169,391 € 41,723 ▼ 75%
Total debts € 29,247 € 47,238 € 26,603 € 125,228 ▲ € 98,625
Cash € 76,416 € 78,232 € 131,514 € 65,128 ▼ 50%
Retained profit € 48,477 € 112,963 € 167,391 € 39,723 ▼ 76%
Dividend € 0 € 0 € 0 € 202,391
Balance sheet total € 79,723 € 162,201 € 195,994 € 166,951 ▼ 15%

Key figures of KASTELLUM, 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 KASTELLUM?

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

  • New annual accounts for financial year 2025: profit of € 74,723 (▲ 37% vs 2024). Source: NBB ↗
  • New establishment in Deinze. KBO
  • Dimitri Martens became a director. NBB
  • Start of the company according to the CBE. KBO

In short

From € 28,467 profit in 2022 to € 74,723 profit in 2025.

Paid € 67,262 in corporate taxes since 2022.

Best year ever: 2025, with € 74,723 profit.

Paid out € 202,391 in dividends to the owners in total.

Management

Dimitri Martens

Behind KASTELLUM is Dimitri Martens. Dimitri Martens is also behind WALDER DEVELOPMENT, CINE RIALTO, SEHO INVEST, VLAAMS ONAFHANKELIJK ZORGNETWERK and UMANIS.

See the full network in the app

Directors

According to the 2025 annual accounts

Establishments

Establishment units

Physical locations of this company

Registered office

Lostraat 70

9850 Deinze

Who else lives here?

A building full of entrepreneurs or one very busy letterbox? Another 2 companies are registered at this address.

All companies at this address →

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

Details

Company number
0773.701.197
VAT number
BE 0773.701.197
Registered office
Lostraat 70, 9850 Deinze
Names & denominations
KASTELLUM
Enterprise type
Rechtspersoon
Legal form
Private limited company
Legal situation
Normale toestand
Start date
9 September 2021
Peppol
Active · Active since 11 Dec 2025
Activities · NACE

Activiteiten van hoofdkantoren

Activiteiten van holdings

Activiteiten van adviesbureaus op het gebied van bedrijfsvoering en overig managementadvies

Overige zakelijke dienstverlening, neg

Holdings

Overige adviesbureaus op het gebied van bedrijfsbeheer; adviesbureaus op het gebied van bedrijfsvoering

Frequently asked questions

What does KASTELLUM do?
KASTELLUM is a management company in Deinze. Private Limited, started on 9 September 2021, 1 establishment.
What is the address of KASTELLUM?
The registered office of KASTELLUM is located at Lostraat 70, 9850 Deinze.
Is KASTELLUM still active?
Yes. According to the CBE (30 September 2026) KASTELLUM is active, legal situation “Normale toestand”, started on 9 September 2021.
Is KASTELLUM registered on Peppol?
Yes, KASTELLUM is registered on the Peppol network with ID 0208:0773701197.
What is the enterprise number of KASTELLUM?
The enterprise number of KASTELLUM is BE0773701197.
When was KASTELLUM founded?
KASTELLUM was founded on 9 September 2021.