Active · per the CBE, 29 October 2026

ISB BUILDING TECHNICS

BE0402940869

Rechtspersoon Public limited company 2 establishments

ISB BUILDING TECHNICS is a heating and ventilation installer in Sint-Joost-ten-Node. Public Limited, started on 10 October 1950, 2 establishments.

Koning Albert II-laan 19, 1210 Sint-Joost-ten-Node

Active for

76 year

Warning lights

Signals from the annual accounts, the CBE and the Official Gazette, each with its threshold and source. No score, no verdict.

  • Shrinking team NBB

    FTE fell two years in a row, from 108 to 87.8.

  • Busy address KBO

    52 other companies have their registered office at the same address; threshold 10.

Financials

Financial year 2025

ISB BUILDING TECHNICS from Sint-Joost-ten-Node, company number BE0402940869, closed financial year 2025 with a result of € 866,631 after tax. For that financial year ISB BUILDING TECHNICS recorded revenue of € 25.3 million and equity of € 2.7 million. Compared with financial year 2024, the result moved from € 998,444 to € 866,631. The company is profitable. The buffer is growing. Debts are under control. The most recent annual accounts were filed with the National Bank of Belgium on May 27, 2026.

What it is worth Growing

€ 2.7 million

▲ 7% vs 2024

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

Profit Healthy

€ 866,631

▼ 13% vs 2024

Profit after tax over the fiscal year.

Cash in the bank

€ 299

▼ 90% vs 2024

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

Where the profit goes Pays out

€ 693,000 paid out

80 % of the profit went to the shareholders, the rest stayed in the company.

People and assets in 2025

Full-time equivalents

87.8

▼ 15.4 vs 2024

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

Wage cost

€ 7.1 million

▼ 5% vs 2024

€ 80,900 per full-time equivalent. Payroll staff only. What the director pays themselves is already netted into the gross margin and is not shown separately in the accounts.

Debts at end 2025

Bank debt

None

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

Owed to suppliers

€ 4 million

▲ 30% vs 2024

Supplier invoices still open on the last day of the fiscal year. Pays suppliers within 86 days on average.

Taxes and wages

€ 1.2 million

▲ 12% vs 2024

Taxes, VAT and social contributions still to pay.

Key figures per fiscal year Download key figures (CSV)
2022202320242025Change 2024 → 2025
Revenue € 22,008,216 € 24,248,792 € 25,221,946 € 25,268,000
Profit after taxes € 457,058 € -49,512 € 998,444 € 866,631 ▼ 13%
Equity € 2,047,669 € 1,998,158 € 2,557,320 € 2,730,952 ▲ 7%
Total debts € 6,278,056 € 8,014,866 € 8,929,804 € 9,940,229 ▲ 11%
Cash € 31,272 € 4,270 € 2,939 € 299 ▼ 90%
Land & buildings - € 42,394 € 41,198 € 61,737 ▲ 50%
Retained profit € -177,331 € -226,842 € 332,320 € 505,952 ▲ 52%
Dividend € 0 € 0 € 439,281 € 693,000 ▲ 58%
Bank debt € 0 € 1,453,038 € 0 € 0
Balance sheet total € 8,909,607 € 10,779,584 € 12,008,094 € 13,164,914 ▲ 10%
Employees (FTE) 115.1 108 103.2 87.8 ▼ 15.4

Key figures of ISB BUILDING TECHNICS, 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 ISB BUILDING TECHNICS?

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

  • Nicolas ROGEZ stepped down as director. NBB
  • Iris TRUYEN stepped down as director. NBB
  • New annual accounts for financial year 2025: profit of € 866,631 (▼ 13% vs 2024). Source: NBB ↗
  • Xavier ALLARD stepped down as director. NBB
  • Antoine LOHEST stepped down as director. NBB
  • Nicolas ROGEZ became a director. NBB
  • Iris TRUYEN became a director. NBB
  • Natalie DEWULF stepped down as director. NBB

In short

From € 457,058 profit in 2022 to € 866,631 profit in 2025.

Paid € 1.2 million in corporate taxes since 2022.

Best year ever: 2024, with € 998,444 profit.

Paid out € 1.1 million in dividends to the owners in total.

Management

ISB BUILDING TECHNICS

The shares are held by EQUANS Services SA (40%), T.E.M - TECHNILIFT (30%) and EQUANS SA (30%).

Directors

According to the 2025 annual accounts

Antoine LOHEST

Managing director

since 2024 · until 2025

since 2025 · until 2028

Iris TRUYEN

Managing director

since 2025 · until 2028

Natalie DEWULF

Chairman of the board

since 2024 · until 2025

Participations

No participations in other companies reported.

Establishments

Establishment units

Physical locations of this company

Registered office

Koning Albert II-laan 19

1210 Sint-Joost-ten-Node

2.278.165.655

Humaniteitslaan 231

1620 Drogenbos

Active since 1 June 2018

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

Details

Company number
0402.940.869
VAT number
BE 0402.940.869
Registered office
Koning Albert II-laan 19, 1210 Sint-Joost-ten-Node
Names & denominations
ISB BUILDING TECHNICS
Enterprise type
Rechtspersoon
Legal form
Public limited company
Legal situation
Normale toestand
Start date
10 October 1950
Peppol
Active · Active since 8 Jan 2026
Activities · NACE

Installatie van verwarming, klimaatregeling, koeling en ventilatie aangedreven door elektriciteit

Installatie van verwarming, klimaatregeling en ventilatie

Algemene elektrotechnische installatiewerken

Frequently asked questions

What does ISB BUILDING TECHNICS do?
ISB BUILDING TECHNICS is a heating and ventilation installer in Sint-Joost-ten-Node. Public Limited, started on 10 October 1950, 2 establishments.
What is the address of ISB BUILDING TECHNICS?
The registered office of ISB BUILDING TECHNICS is located at Koning Albert II-laan 19, 1210 Sint-Joost-ten-Node.
Is ISB BUILDING TECHNICS still active?
Yes. According to the CBE (29 October 2026) ISB BUILDING TECHNICS is active, legal situation “Normale toestand”, started on 10 October 1950.
Is ISB BUILDING TECHNICS registered on Peppol?
Yes, ISB BUILDING TECHNICS is registered on the Peppol network with ID 0208:0402940869.
What is the enterprise number of ISB BUILDING TECHNICS?
The enterprise number of ISB BUILDING TECHNICS is BE0402940869.
When was ISB BUILDING TECHNICS founded?
ISB BUILDING TECHNICS was founded on 10 October 1950.