K.L.Z. is a civil engineering contractor in Brussel. Private Limited, started on 16 March 2011, 1 establishment.

What is the address of K.L.Z.?

The registered office of K.L.Z. is located at Parkdreef 35, 1000 Brussel.

Is K.L.Z. still active?

Yes. According to the CBE (3 October 2026) K.L.Z. is active, legal situation “Normale toestand”, started on 16 March 2011.

Is K.L.Z. registered on Peppol?

Yes, K.L.Z. is registered on the Peppol network with ID 0208:0834562363.

What is the enterprise number of K.L.Z.?

The enterprise number of K.L.Z. is BE0834562363.

When was K.L.Z. founded?

K.L.Z. was founded on 16 March 2011.

Who are the directors of K.L.Z.?

According to the 2025 annual accounts, the directors of K.L.Z. are: Abdurraham KOLSUZ.

Is K.L.Z. a reliable company?

Databakkes does not pass judgement; this is what the sources say: Active according to the CBE since 16 March 2011; 5 annual accounts filed, latest fiscal year 2025; 1 directors known from the annual account.

How much profit did K.L.Z. make in 2025?

K.L.Z. recorded a loss after taxes of € 107,098 in financial year 2025.

What is the revenue of K.L.Z.?

As a small company, K.L.Z. is not required to publish revenue in its annual accounts. In financial year 2025, its added value was € 217,397.

K.L.Z. (Private Limited) - Brussel - BE0834562363

Dossier K.L.Z., printed on 3 October 2026 from databakkes.be/en/0834562363/k-l-z. Sources: CBE, National Bank of Belgium, Belgian Official Gazette.

Financials

Financial year 2025

K.L.Z. from Brussel, company number BE0834562363, closed financial year 2025 with a result of € -107,098 after tax. For that financial year K.L.Z. recorded a gross margin of € 217,397 and equity of € 61,061. Compared with financial year 2024, the result moved from € 38,187 to € -107,098. The company made a loss. The buffer shrank hard: equity is 64 % below last year. A strong own buffer against the debts. The most recent annual accounts were filed with the National Bank of Belgium on September 9, 2026.

What it is worth Shrank hard

€ 61,061

▼ 64% vs 2024

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

Loss Caution

€ -107,098

▼ still € 38,187 profit in 2024

Profit after tax over the fiscal year.

Cash in the bank

€ 549

▼ 99% vs 2024

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

Where the profit goes Caution

Loss, nothing to pay out

Reserves fell to € 42,461.

People and assets in 2025

Full-time equivalents estimate The annual accounts report no full-time equivalents. A micro company with one active director is usually run by that person; this is an assumption, not a figure from the source.

≈ 1

No payroll staff. One director, so that person most likely runs the business.

Wage cost

€ 301,769

▲ 13% vs 2024

Payroll staff only. What the director pays themselves is already netted into the gross margin and is not shown separately in the accounts.

Vehicles and equipment

€ 27,298

▼ 2% vs 2024

Book value of vehicles, furniture and equipment.

Debts at end 2025

Bank debt

€ 16,426

Loans from banks and other lenders, long and short.

Owed to suppliers

€ 11,805

▲ 75% vs 2024

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

Taxes and wages

€ 46,721

▼ 13% vs 2024

Taxes, VAT and social contributions still to pay.

Want to see how much further we take a dossier in the Pro version? Open the free De Lijn example and give feedback →

Key figures per fiscal year Download key figures (CSV)
	2022	2023	2024	2025	Change 2024 → 2025
Gross margin	€ 195,790 Gross margin 2022: € 195,790 First fiscal year in the series	€ 375,526 Gross margin 2023: € 375,526 ▲ 92% vs 2022 (€ 195,790) Favourable step	€ 330,175 Gross margin 2024: € 330,175 ▼ 12% vs 2023 (€ 375,526) Unfavourable step	€ 217,397 Gross margin 2025: € 217,397 ▼ 34% vs 2024 (€ 330,175) Unfavourable step	▼ 34%
Profit after taxes	€ -12,171 Profit after taxes 2022: € -12,171 First fiscal year in the series	€ 103,902 Profit after taxes 2023: € 103,902 ▲ € 116,072 vs 2022 (€ -12,171) Favourable step	€ 38,187 Profit after taxes 2024: € 38,187 ▼ 63% vs 2023 (€ 103,902) Unfavourable step	€ -107,098 Profit after taxes 2025: € -107,098 ▼ € 145,285 vs 2024 (€ 38,187) Unfavourable step	▼ € 145,285
Equity	€ 26,070 Equity 2022: € 26,070 First fiscal year in the series	€ 129,972 Equity 2023: € 129,972 ▲ € 103,902 vs 2022 (€ 26,070) Favourable step	€ 168,159 Equity 2024: € 168,159 ▲ 29% vs 2023 (€ 129,972) Favourable step	€ 61,061 Equity 2025: € 61,061 ▼ 64% vs 2024 (€ 168,159) Unfavourable step	▼ 64%
Total debts	€ 79,772 Total debts 2022: € 79,772 First fiscal year in the series	€ 63,639 Total debts 2023: € 63,639 ▼ 20% vs 2022 (€ 79,772) Favourable step	€ 60,721 Total debts 2024: € 60,721 ▼ 5% vs 2023 (€ 63,639) Favourable step	€ 75,920 Total debts 2025: € 75,920 ▲ 25% vs 2024 (€ 60,721) Unfavourable step	▲ 25%
Cash	€ 6 Cash 2022: € 6 First fiscal year in the series	€ 82,898 Cash 2023: € 82,898 ▲ € 82,892 vs 2022 (€ 6) Favourable step	€ 53,477 Cash 2024: € 53,477 ▼ 35% vs 2023 (€ 82,898) Unfavourable step	€ 549 Cash 2025: € 549 ▼ 99% vs 2024 (€ 53,477) Unfavourable step	▼ 99%
Retained profit	€ 7,470 Retained profit 2022: € 7,470 First fiscal year in the series	€ 111,372 Retained profit 2023: € 111,372 ▲ € 103,902 vs 2022 (€ 7,470) Favourable step	€ 149,559 Retained profit 2024: € 149,559 ▲ 34% vs 2023 (€ 111,372) Favourable step	€ 42,461 Retained profit 2025: € 42,461 ▼ 72% vs 2024 (€ 149,559) Unfavourable step	▼ 72%
Bank debt	€ 41,650 Bank debt 2022: € 41,650 First fiscal year in the series	€ 5,883 Bank debt 2023: € 5,883 ▼ 86% vs 2022 (€ 41,650) Favourable step	€ 0 Bank debt 2024: € 0 ▼ 100% vs 2023 (€ 5,883) Favourable step	€ 16,426 Bank debt 2025: € 16,426 Unchanged (€ 0) Unfavourable step
Balance sheet total	€ 105,842 Balance sheet total 2022: € 105,842 First fiscal year in the series	€ 193,610 Balance sheet total 2023: € 193,610 ▲ 83% vs 2022 (€ 105,842) Unchanged	€ 228,879 Balance sheet total 2024: € 228,879 ▲ 18% vs 2023 (€ 193,610) Unchanged	€ 136,981 Balance sheet total 2025: € 136,981 ▼ 40% vs 2024 (€ 228,879) Unchanged	▼ 40%

Key figures of K.L.Z., 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 K.L.Z.?

What happened at K.L.Z. in recent years, according to the Belgian Official Gazette, the CBE and the National Bank:

Sep 9, 2026 New annual accounts for financial year 2025: loss of € 107,098 (▼ € 145,285 vs 2024). filed late Source: NBB ↗
Apr 1, 2011 New establishment in Machelen (Brab.). KBO
Mar 16, 2011 Start of the company according to the CBE. KBO
2011 Abdurraham KOLSUZ became a director. NBB

In short

From € 12,171 loss in 2022 to € 107,098 loss in 2025.

Paid € 39,447 in corporate taxes since 2022.

Best year ever: 2023, with € 103,902 profit.

Original PDFs at the National Bank ↗

A new publication or filing at K.L.Z.? We notify you, reason included.

Follow K.L.Z.

Databakkes Pro

Know what changes at your customers, suppliers and competitors. Without reading an annual account.

Follow them in one folder Every company in your folder gets this full dossier: household book, all fiscal years, benchmark against companies of the same size.
We alert you, with the reason New annual account, Official Gazette publication or status change: you get what changed and where it says so.
In bulk too, and in ChatGPT and Claude Upload your customer list and get the warning signs back per company. Or ask in your own AI assistant, with this register as the source.

Yes, I want that

See what a followed company gets: the De Lijn dossier

Databakkes Pro is being built. Sign up now and you are first in line for an invitation, with a month to try without a credit card.

My folder 3 companies

De Lijn 8 June 2026 New annual account 2025

filed on 8 June 2026

What was left

€ 20 k ▼ 91%
Money in the bank

€ 178 k ▼ 98%

Open the dossier →
NMBS 8 June 2026 New annual account 2025 What was left ▼ 80%
bpost 18 May 2026 New annual account 2025 What was left from loss to profit

Real filings at the National Bank

Management

Abdurraham KOLSUZ

K.L.Z.

Behind K.L.Z. is Abdurraham KOLSUZ.

See the full network in the app

Directors

According to the 2025 annual accounts

Abdurraham KOLSUZ

Director

since 2011

Establishments

Establishment units

Physical locations of this company

Registered office

Parkdreef 35

1000 Brussel

2.197.458.586

Trawoollaan 2 box 5

1830 Machelen (Brab.)

Active since 1 April 2011

Who else lives here?

A building full of entrepreneurs or one very busy letterbox? Another 8 companies are registered at this address.

All companies at this address →

INVIDIA ACCOUNTANCY AND TAX SERVICES

€ 831,007 gross margin · 2025

EURO LIDER

€ 104,521 gross margin · 2026

BRO TECH

€ 620,062 gross margin · 2025

ACN CONSULT & ADVICE

€ 37,487 gross margin · 2025

MLADOST

€ 69,482 gross margin · 2025

+3 more

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

Details

Company number

0834.562.363

VAT number

BE 0834.562.363

Registered office

Parkdreef 35, 1000 Brussel

Names & denominations

K.L.Z.

Enterprise type

Rechtspersoon

Legal form

Private limited company

Legal situation

Normale toestand

Start date

16 March 2011

Peppol

Active · Active since 24 Nov 2025

Activities · NACE

Bouw van civieltechnische werken voor elektriciteit en telecommunicatie

Algemene elektrotechnische installatiewerken

View on CBE Public ↗ Annual accounts (NBB) ↗

K.L.Z.

Financials

What happened to K.L.Z.?

Know what changes at your customers, suppliers and competitors. Without reading an annual account.

Management

Directors

Establishments

Establishment units

Who else lives here?

Details

Frequently asked questions