Active · per the CBE, 2 October 2026

Lambda Wave

BE0775251219

Rechtspersoon Private limited company 1 establishment

Lambda Wave is an IT company in Leuven. Private Limited, started on 4 October 2021, 1 establishment.

Bleydenberglaan 41, 3012 Leuven

Behind the company: Aertgeerts Ruben.

Active for

4 year, 11 months

Financials

Financial year 2025

Lambda Wave from Leuven, company number BE0775251219, closed financial year 2025 with a result of € 30,323 after tax. For that financial year Lambda Wave recorded a gross margin of € 45,830 and equity of € 2,323. Compared with financial year 2024, the result moved from € 22,519 to € 30,323. Profitable, and profit is growing. The buffer is growing. High debts against a small own buffer. The most recent annual accounts were filed with the National Bank of Belgium on March 2, 2026.

What it is worth Growing

€ 2,323

▲ 16% vs 2024

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

Profit Growing

€ 30,323

▲ 35% vs 2024

Profit after tax over the fiscal year.

Cash in the bank

€ 17,312

▼ 8% vs 2024

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

Where the profit goes Pays out

€ 30,000 paid out

99 % of the profit went to the shareholders, the rest stayed in the company.

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

€ 2,572

▼ 31% 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

€ 404

▲ 44% vs 2024

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

Taxes

€ 8,590

▲ 43% vs 2024

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)
2022202320242025Change 2024 → 2025
Gross margin € 38,877 € 28,298 € 33,344 € 45,830 ▲ 37%
Profit after taxes € 30,621 € 20,274 € 22,519 € 30,323 ▲ 35%
Equity € 35,137 € 55,411 € 2,000 € 2,323 ▲ 16%
Total debts € 15,736 € 12,670 € 23,331 € 20,325 ▼ 13%
Cash € 37,672 € 54,399 € 18,786 € 17,312 ▼ 8%
Retained profit € 33,137 € 53,411 € 0 € 323
Dividend € 0 € 0 € 75,930 € 30,000 ▼ 60%
Balance sheet total € 50,873 € 68,081 € 25,331 € 22,648 ▼ 11%

Key figures of Lambda Wave, 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 Lambda Wave?

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

  • New annual accounts for financial year 2025: profit of € 30,323 (▲ 35% vs 2024). Source: NBB ↗
  • New establishment in Leuven. KBO
  • Aertgeerts Ruben became a director. NBB
  • Start of the company according to the CBE. KBO

In short

From € 30,621 profit in 2022 to € 30,323 profit in 2025.

Paid € 31,318 in corporate taxes since 2022.

Best year ever: 2022, with € 30,621 profit.

Paid out € 105,930 in dividends to the owners in total.

Management

Aertgeerts Ruben
Lambda Wave

Behind Lambda Wave is Aertgeerts Ruben.

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Directors

According to the 2025 annual accounts

Aertgeerts Ruben

Director

since 2021

Establishments

Establishment units

Physical locations of this company

Registered office

Bleydenberglaan 41

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
0775.251.219
VAT number
BE 0775.251.219
Registered office
Bleydenberglaan 41, 3012 Leuven
Names & denominations
Lambda Wave
Enterprise type
Rechtspersoon
Legal form
Private limited company
Legal situation
Normale toestand
Start date
4 October 2021
Peppol
Active · Active since 1 Jan 2001
Activities · NACE

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Frequently asked questions

What does Lambda Wave do?
Lambda Wave is an IT company in Leuven. Private Limited, started on 4 October 2021, 1 establishment.
What is the address of Lambda Wave?
The registered office of Lambda Wave is located at Bleydenberglaan 41, 3012 Leuven.
Is Lambda Wave still active?
Yes. According to the CBE (2 October 2026) Lambda Wave is active, legal situation “Normale toestand”, started on 4 October 2021.
Is Lambda Wave registered on Peppol?
Yes, Lambda Wave is registered on the Peppol network with ID 0208:0775251219.
What is the enterprise number of Lambda Wave?
The enterprise number of Lambda Wave is BE0775251219.
When was Lambda Wave founded?
Lambda Wave was founded on 4 October 2021.