Active · per the CBE, 30 October 2026

Wisewave

BE0524997256

Rechtspersoon Private limited company 1 establishment

Wisewave is a cleaning company in Leuven. Private Limited, started on 26 March 2013, 1 establishment.

Bergstraat 125, 3010 Leuven

Behind the company: Sylvie Nelissen, Joachim Adriaensens.

Active for

13 year, 7 months

Financials

Financial year 2025

Wisewave from Leuven, company number BE0524997256, closed financial year 2025 with a result of € 111,229 after tax. For that financial year Wisewave recorded a gross margin of € 133,469 and equity of € 94,800. Compared with financial year 2024, the result moved from € 1,508 to € 111,229. Profitable, and profit is growing. The company holds a healthy buffer. A strong own buffer against the debts. The most recent annual accounts were filed with the National Bank of Belgium on December 28, 2025.

What it is worth Healthy

€ 94,800

▼ 9% vs 2024

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

Profit Growing

€ 111,229

▲ € 109,721 vs 2024

Profit after tax over the fiscal year.

Cash in the bank

€ 93,415

▲ € 90,878 vs 2024

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

Where the profit goes Pays out

€ 120,550 paid out

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

People and assets in 2025

Vehicles and equipment

€ 8,363

▲ 299% 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

€ 2,630

▲ 265% vs 2024

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

Taxes

€ 23,909

▲ € 23,895 vs 2024

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

Key figures per fiscal year Download key figures (CSV)
2022202320242025Change 2024 → 2025
Gross margin € 1,000 € -13,170 € 867 € 133,469 ▲ € 132,602
Profit after taxes € -287 € -13,778 € 1,508 € 111,229 ▲ € 109,721
Equity € 116,391 € 102,613 € 104,121 € 94,800 ▼ 9%
Total debts € 17,645 € 9,454 € 12,840 € 167,285 ▲ € 154,445
Cash € 16,326 € 152 € 2,537 € 93,415 ▲ € 90,878
Land & buildings € 27,758 € 27,152 € 26,545 € 25,939 ▼ 2%
Retained profit € 97,791 € 84,013 € 85,521 € 76,200 ▼ 11%
Dividend € 0 € 0 € 0 € 120,550
Balance sheet total € 134,035 € 112,067 € 116,961 € 262,085 ▲ 124%

Key figures of Wisewave, fiscal years 2022 to 2025, from the annual accounts filed with the National Bank of Belgium.Next annual account (fiscal year 2026) expected before 30 January 2027.

What happened to Wisewave?

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

  • New annual accounts for financial year 2025: profit of € 111,229 (▲ € 109,721 vs 2024). Source: NBB ↗
  • New establishment in Leuven. KBO
  • Start of the company according to the CBE. KBO

In short

From € 287 loss in 2022 to € 111,229 profit in 2025.

Paid € 20,042 in corporate taxes since 2022.

Best year ever: 2025, with € 111,229 profit.

Paid out € 120,550 in dividends to the owners in total.

Management

Sylvie Nelissen Joachim Adriaensens

Behind Wisewave are Sylvie Nelissen and Joachim Adriaensens. Sylvie Nelissen is also behind IMMO DILLENHOF, MICHAEL PAGE INTERNATIONAL (BELGIUM) and PAGE INTERIM (BELGIUM).

Directors

According to the 2025 annual accounts

Joachim Adriaensens

Director

Establishments

Establishment units

Physical locations of this company

Registered office

Bergstraat 125

3010 Leuven

Who else lives here?

A building full of entrepreneurs or one very busy letterbox? Another 1 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
0524.997.256
VAT number
BE 0524.997.256
Registered office
Bergstraat 125, 3010 Leuven
Names & denominations
Wisewave
Enterprise type
Rechtspersoon
Legal form
Private limited company
Legal situation
Normale toestand
Start date
26 March 2013
Peppol
Active · Active since 10 Nov 2025
Activities · NACE

Overige reiniging van gebouwen; industriële reiniging

Frequently asked questions

What does Wisewave do?
Wisewave is a cleaning company in Leuven. Private Limited, started on 26 March 2013, 1 establishment.
What is the address of Wisewave?
The registered office of Wisewave is located at Bergstraat 125, 3010 Leuven.
Is Wisewave still active?
Yes. According to the CBE (30 October 2026) Wisewave is active, legal situation “Normale toestand”, started on 26 March 2013.
Is Wisewave registered on Peppol?
Yes, Wisewave is registered on the Peppol network with ID 0208:0524997256.
What is the enterprise number of Wisewave?
The enterprise number of Wisewave is BE0524997256.
When was Wisewave founded?
Wisewave was founded on 26 March 2013.