Active · per the CBE, 29 October 2026

INSIDE MANAGEMENT

BE0479277889

Rechtspersoon Private limited company 1 establishment

INSIDE MANAGEMENT is registered with the CBE as active in: Activiteiten van adviesbureaus op het gebied van bedrijfsvoering en overig managementadvies. Private Limited, started on 14 January 2003, 1 establishment.

Vieux Chemin de Wavre 12, 1380 Lasne [email protected]

Behind the company: Jean-François Sidler.

Active for

23 year, 9 months

Financials

Financial year 2025

INSIDE MANAGEMENT from Lasne, company number BE0479277889, closed financial year 2025 with a result of € 44,142 after tax. For that financial year INSIDE MANAGEMENT recorded a gross margin of € 163,079 and equity of € 4.4 million. Compared with financial year 2024, the result moved from € 3.5 million to € 44,142. The company is profitable. The buffer is growing. A strong own buffer against the debts. The most recent annual accounts were filed with the National Bank of Belgium on October 8, 2026.

What it is worth Growing

€ 4.4 million

▲ 1% vs 2024

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

Profit Healthy

€ 44,142

▼ 99% vs 2024

Profit after tax over the fiscal year.

Cash in the bank

€ 1.1 million

▼ 22% vs 2024

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

Where the profit goes Growing

Stays in the company

No dividend for 2025. Retained profit grew to € 4.4 million.

People and assets in 2025

Vehicles and equipment

€ 11,203

▼ 56% vs 2024

Book value of vehicles, furniture and equipment.

Debts at end 2025

Bank debt

€ 5,439

▼ 52% vs 2024

Loans from banks and other lenders, long and short.

Owed to suppliers

€ 290,032

▲ € 285,904 vs 2024

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

Taxes

€ 4,414

▼ 99% 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 € 391,025 € 436,154 € 385,110 € 163,079 ▼ 58%
Profit after taxes € 201,095 € 236,628 € 3,544,721 € 44,142 ▼ 99%
Equity € 953,706 € 1,190,334 € 4,397,283 € 4,441,425 ▲ 1%
Total debts € 192,195 € 88,273 € 711,139 € 301,266 ▼ 58%
Cash € 395,624 € 277,109 € 1,374,485 € 1,077,881 ▼ 22%
Land & buildings - - € 129,261 € 255,882 ▲ 98%
Retained profit € 943,706 € 1,180,334 € 4,387,283 € 4,431,425 ▲ 1%
Dividend € 0 € 0 € 337,772 € 0 ▼ 100%
Bank debt € 53,769 € 17,043 € 11,286 € 5,439 ▼ 52%
Balance sheet total € 1,145,902 € 1,278,607 € 5,108,422 € 4,742,691 ▼ 7%

Key figures of INSIDE MANAGEMENT, 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 INSIDE MANAGEMENT?

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

  • New annual accounts for financial year 2025: profit of € 44,142 (▼ 99% vs 2024). filed late Source: NBB ↗
  • New establishment in Genappe. KBO
  • Start of the company according to the CBE. KBO

In short

From € 201,095 profit in 2022 to € 44,142 profit in 2025.

Paid € 652,924 in corporate taxes since 2022.

Best year ever: 2024, with € 3.5 million profit.

Paid out € 337,772 in dividends to the owners in total.

Original PDFs at the National Bank ↗

Management

Jean-François Sidler
INSIDE MANAGEMENT
CONCEPT & FORME DEVELOPPEMENTS 11.4%

Behind INSIDE MANAGEMENT is Jean-François Sidler. It owns 11.4% of CONCEPT & FORME DEVELOPPEMENTS itself.

Directors

According to the 2025 annual accounts

Jean-François Sidler

Director

Also active at: Stûv, NAMUR INVEST, NAMUR INVEST PREFACE, NAMUR INVEST INNOVATION ET CROISSANCE, ULIS 4.0., Namur invest immo lease, NAMUR INVEST CAPITAL RISQUE, NAMUR INVEST CAPITAL RISQUE +1 more

Establishments

Establishment units

Physical locations of this company

Registered office

Vieux Chemin de Wavre 12

1380 Lasne

2.123.458.771

Drève Angevine 14

1470 Genappe

Active since 25 February 2003

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

Details

Company number
0479.277.889
VAT number
BE 0479.277.889
Registered office
Vieux Chemin de Wavre 12, 1380 Lasne
Names & denominations
INSIDE MANAGEMENT
Enterprise type
Rechtspersoon
Legal form
Private limited company
Legal situation
Normale toestand
Start date
14 January 2003
Peppol
Active · Active since 31 Jan 2025
Contact
[email protected]
Activities · NACE

Activiteiten van adviesbureaus op het gebied van bedrijfsvoering en overig managementadvies

Overige adviesbureaus op het gebied van bedrijfsvoering en beheer

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

View on CBE Public ↗ Annual accounts (NBB) ↗

Frequently asked questions

What does INSIDE MANAGEMENT do?
INSIDE MANAGEMENT is registered with the CBE as active in: Activiteiten van adviesbureaus op het gebied van bedrijfsvoering en overig managementadvies. Private Limited, started on 14 January 2003, 1 establishment.
What is the address of INSIDE MANAGEMENT?
The registered office of INSIDE MANAGEMENT is located at Vieux Chemin de Wavre 12, 1380 Lasne.
Is INSIDE MANAGEMENT still active?
Yes. According to the CBE (29 October 2026) INSIDE MANAGEMENT is active, legal situation “Normale toestand”, started on 14 January 2003.
Is INSIDE MANAGEMENT registered on Peppol?
Yes, INSIDE MANAGEMENT is registered on the Peppol network with ID 0208:0479277889.
What is the enterprise number of INSIDE MANAGEMENT?
The enterprise number of INSIDE MANAGEMENT is BE0479277889.
When was INSIDE MANAGEMENT founded?
INSIDE MANAGEMENT was founded on 14 January 2003.