Active · per the CBE, 2 October 2026

Altosim

BE0780714396

Rechtspersoon Private limited company 1 establishment

Altosim is registered with the CBE as active in: Activiteiten van adviesbureaus op het gebied van bedrijfsvoering en overig managementadvies. Private Limited, started on 20 January 2022, 1 establishment.

Nieuwe Prinsstraat 17, 3012 Leuven

Behind the company: MARTIN DIEUSSAERT.

Active for

4 year, 8 months

Financials

Financial year 2026

Altosim from Leuven, company number BE0780714396, closed financial year 2026 with a result of € 198,105 after tax. For that financial year Altosim recorded a gross margin of € 249,506 and equity of € 9,875. Compared with financial year 2025, the result moved from € 195,938 to € 198,105. Profitable, and profit is growing. The buffer shrank hard: equity is 63 % below last year. High debts against a small own buffer. The most recent annual accounts were filed with the National Bank of Belgium on June 30, 2026.

What it is worth Shrank hard

€ 9,875

▼ 63% vs 2025

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

Profit Growing

€ 198,105

▲ 1% vs 2025

Profit after tax over the fiscal year.

Cash in the bank

€ 165,748

▲ 100% vs 2025

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

Where the profit goes Pays out

€ 215,000 paid out

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

People and assets in 2026

Full-time equivalents

0

Average over the fiscal year, from the social balance sheet.

Vehicles and equipment

€ 4,764

▲ 18% vs 2025

Book value of vehicles, furniture and equipment.

Debts at end 2026

Bank debt

None

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

Owed to suppliers

€ 23,419

▲ 121% vs 2025

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

Taxes

€ 9,485

▼ 76% vs 2025

Corporate tax and VAT still to pay. No wage debt: nothing outstanding to staff or social security.

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Key figures per fiscal year Download key figures (CSV)
2023202420252026Change 2025 → 2026
Gross margin € 271,378 € 369,236 € 249,079 € 249,506
Profit after taxes € 208,002 € 285,250 € 195,938 € 198,105 ▲ 1%
Equity € 241,482 € 526,733 € 26,770 € 9,875 ▼ 63%
Total debts € 84,755 € 122,853 € 652,349 € 805,075 ▲ 23%
Cash € 212,286 € 231,180 € 83,027 € 165,748 ▲ 100%
Retained profit € 236,482 € 521,733 € 21,770 € 4,875 ▼ 78%
Dividend € 0 € 0 € 695,900 € 215,000 ▼ 69%
Balance sheet total € 326,238 € 649,586 € 679,120 € 814,950 ▲ 20%

Key figures of Altosim, 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 December 2027.

What happened to Altosim?

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

  • New annual accounts for financial year 2026: profit of € 198,105 (▲ 1% vs 2025). Source: NBB ↗
  • New establishment in Leuven. KBO
  • Start of the company according to the CBE. KBO

In short

From € 208,002 profit in 2023 to € 198,105 profit in 2026.

Paid € 276,854 in corporate taxes since 2023.

Best year ever: 2024, with € 285,250 profit.

Paid out € 910,900 in dividends to the owners in total.

Management

MARTIN DIEUSSAERT

Behind Altosim is MARTIN DIEUSSAERT. MARTIN DIEUSSAERT is also behind ERNST & YOUNG CONSULTING.

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Directors

According to the 2026 annual accounts

MARTIN DIEUSSAERT

Director

Also active at: ERNST & YOUNG CONSULTING

Establishments

Establishment units

Physical locations of this company

Registered office

Nieuwe Prinsstraat 17

3012 Leuven

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

Details

Company number
0780.714.396
VAT number
BE 0780.714.396
Registered office
Nieuwe Prinsstraat 17, 3012 Leuven
Names & denominations
Altosim
Enterprise type
Rechtspersoon
Legal form
Private limited company
Legal situation
Normale toestand
Start date
20 January 2022
Peppol
Active · Active since 27 Mar 2026
Activities · NACE

Activiteiten van adviesbureaus op het gebied van bedrijfsvoering en overig managementadvies

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

Frequently asked questions

What does Altosim do?
Altosim is registered with the CBE as active in: Activiteiten van adviesbureaus op het gebied van bedrijfsvoering en overig managementadvies. Private Limited, started on 20 January 2022, 1 establishment.
What is the address of Altosim?
The registered office of Altosim is located at Nieuwe Prinsstraat 17, 3012 Leuven.
Is Altosim still active?
Yes. According to the CBE (2 October 2026) Altosim is active, legal situation “Normale toestand”, started on 20 January 2022.
Is Altosim registered on Peppol?
Yes, Altosim is registered on the Peppol network with ID 0208:0780714396.
What is the enterprise number of Altosim?
The enterprise number of Altosim is BE0780714396.
When was Altosim founded?
Altosim was founded on 20 January 2022.