ACTIVE

INSIDE MANAGEMENT

Financial year 2025 · Closed on 31/12/2025

Net result44,1 k €-98,8 %over 1 year

Gross margin163,1 k €-57,7 %over 1 year

Equity4,4 M €+1,0 %over 1 year

Identity

Source · BCE/KBO

INSIDE MANAGEMENT is a Private limited company incorporated in 2003. Its main activity is: Management consultancy activities. Its registered office is in Lasne.

Legal situation: Normal situation
BCE/KBO no. / VAT: BE 0479.277.889
Incorporation: 14/01/2003
Legal form: Private limited company
Registered office: Vieux Chemin de Wavre 12
1380 Lasne · WallonieSee on map
Contributed capital: 10 000,00 €
Latest accounts: 31/12/2025

Activities (NACE)

70200Management consultancy activities· main 70220Business and other management consultancy activities 74142Specialised design activities

Contacts

1 public detail availableLog in to view

Signals

ProfitableSolid equityLow riskGood liquidityPositive cashflowPositive EBITDA

Financials

Source · NBB, 20 filings

Trend over 20 financial years

	2025		2024		2023		2022		2021
Income statement
Gross margin	163,1 k €	-57.7%	385,1 k €	-11.7%	436,2 k €	+11.5%	391 k €	+1442%	25,4 k €
EBITDA	160,1 k €	-58.2%	383,1 k €	-12.0%	435,3 k €	+11.8%	389,4 k €	+1466%	24,9 k €
Operating result	152,6 k €	-59.1%	373,1 k €	-12.8%	427,8 k €	+11.7%	383 k €	+1488%	24,1 k €
Net result	44,1 k €	-98.8%	3,5 M €	+1398%	236,6 k €	+17.7%	201,1 k €	+1.5%	198,1 k €
Balance sheet
Equity	4,4 M €	+1.0%	4,4 M €	+269%	1,2 M €	+24.8%	953,7 k €	+26.7%	752,6 k €
Total assets	4,7 M €	-7.2%	5,1 M €	+300%	1,3 M €	+11.6%	1,1 M €	+28.6%	890,8 k €
Cash	1,1 M €	-21.6%	1,4 M €	+396%	277,1 k €	-30.0%	395,6 k €	+119%	180,6 k €
Debts	299,9 k €	-57.8%	711,1 k €	+706%	88,3 k €	-54.1%	192,2 k €	+39.1%	138,2 k €

Valuation

Indicative valuation

As an indication, this company is worth

between 2,5 M€ and 5 M€

See the valuation

Board of directors

Source · NBB, accounts to 31/12/2025

1 active · 1 ended

Active mandates

Director	Mandates in this company	Period	Other mandatescurrentendedstruck offbankruptcies
Sidler Jean-François	Directorsince 09/01/2003Manager09/01/2003 → 2018 accountsended

Ended mandates

Director	Mandates in this company	Period	Other mandatescurrentendedstruck offbankruptcies
Sidler Jeans-François	Directorlisted until the 2022 accounts

Full financial information

Source · NBB

	2025	2024	2023	2022	2021	2020
Type of account	Micro model	Micro model	Micro model	Micro model	Abridged model	Abridged model
Start of the financial year	01/01/2025	01/01/2024	01/01/2023	01/01/2022	01/01/2021	01/01/2020
Closing of the financial year	31/12/2025	31/12/2024	31/12/2023	31/12/2022	31/12/2021	31/12/2020
Length of the financial year	12 months	12 months	12 months	12 months	12 months	12 months
Filing date	08/10/2026	30/09/2025	30/08/2024	31/08/2023	07/10/2022	18/08/2021
General meeting	30/09/2026	25/09/2025	30/08/2024	30/08/2023	06/05/2022	07/05/2021
Currency of the financial year	EUR	EUR	EUR	EUR	EUR	EUR
NBB quality label	Satisfying controls	Satisfying controls	Satisfying controls	Satisfying controls	Satisfying controls	Satisfying controls

Financial ratios

Source · NBB

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Annual accounts filings

Source · NBB, 20 filings

Model	Closing	General meeting	Filed	Language	Document
Micro model	31/12/2025	30/09/2026	08/10/2026	French	PDF
Micro model	31/12/2024	25/09/2025	30/09/2025	French	PDF
Micro model	31/12/2023	30/08/2024	30/08/2024	French	PDF
Micro model	31/12/2022	30/08/2023	31/08/2023	French	PDF
Abridged model	31/12/2021	06/05/2022	07/10/2022	French	PDF
Abridged model	31/12/2020	07/05/2021	18/08/2021	French	PDF
Abridged model	31/12/2019	01/05/2020	22/10/2020	French	PDF
Abridged model	31/12/2018	03/05/2019	07/10/2019	French	PDF
Abridged model	31/12/2017	04/05/2018	28/09/2018	French	PDF
Abridged model	31/12/2016	05/05/2017	27/09/2017	French	PDF
Abridged model	31/12/2015	06/05/2016	24/08/2016	French	PDF
Abridged model	31/12/2014	01/05/2015	31/08/2015	French	PDF
Abridged model	31/12/2013	02/05/2014	13/06/2014	French	PDF
Abridged model	31/12/2012	03/05/2013	29/07/2013	French	PDF
Abridged model	31/12/2011	04/05/2012	06/07/2012	French	PDF
Abridged model	31/12/2010	06/05/2011	05/07/2011	French	PDF
Abridged model	31/12/2009	07/05/2010	18/06/2010	French	PDF
Abridged model	31/12/2008	01/05/2009	15/06/2009	French	PDF
Abridged model	31/12/2007	02/05/2008	26/06/2008	French	PDF
Abridged model	31/12/2006	04/05/2007	17/07/2007	French	PDF

Indicative valuation

Order of magnitude

As an indication, this company is worth

between 2,5 M€ and 5 M€

The detail comes with the Business plan: low and high bounds, the valuation bridge for each financial year, transaction multiples by sector and size, group valuation and exports.

Discover the Business plan

Disclaimer

Indicative estimate based on public sector multiples and the filed annual accounts. It is neither a certified valuation nor financial or investment advice.

Board of directors

Source · NBB, accounts to 31/12/2025

1 active · 1 ended

Active mandates

Director	Mandates in this company	Period	Other mandatescurrentendedstruck offbankruptcies
Sidler Jean-François	Directorsince 09/01/2003Manager09/01/2003 → 2018 accountsended

Ended mandates

Director	Mandates in this company	Period	Other mandatescurrentendedstruck offbankruptcies
Sidler Jeans-François	Directorlisted until the 2022 accounts

Ownership and network

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Belgian Official Gazette publications

Source · Belgian Official Gazette

Mandates28/08/2023
STATUTS (TRADUCTION, COORDINATION, AUTRES MODIFICATIONS, ) - MODIFICATION FORME JURIDIQUE - DEMISSIONS, NOMINATIONS
PDF
Registered office09/04/2019
SIEGE SOCIAL
PDF
Other22/01/2003
RUBRIQUE CONSTITUTION (NOUVELLE PERSONNE MORALE, OUVERTURE SUCCURSALE, ETC...)
PDF

Similar companies

A company's peers, by sector and size, are included in the Business plan.

See the Business plan

Timeline

Source · CBE, NBB annual accounts

Year

Identity

Incorporation

Name

Registered office

Annual accounts

Filings20 filings

Mandates

Jean-François Sidler

Sidler Jeans-François

200320042005200620072008200920102011201220132014201520162017201820192020202120222023202420252026

INSIDE MANAGEMENT

Vieux Chemin de Wavre 12, 1380 Lasne

DirectorManager

CurrentPlanned, not yet servedEndedAccounts filedToday

Registered offices

Source · NBB annual accounts, CBE

Registered address	Period	Source
Vieux Chemin de Wavre 12, 1380 LasneCurrent	accounts 2021 → 2025	Accounts 2025 · 2026-00554450

Company names

Source · NBB annual accounts, CBE

Name	Period	Source
INSIDE MANAGEMENTCurrent	accounts 2021 → 2025	Accounts 2025 · 2026-00554450

Events

2025
Annual accounts 202544,1 k €↓
2024
Annual accounts 20243,5 M €↑
2023
Annual accounts 2023236,6 k €↑
2022
Annual accounts 2022201,1 k €↑
2021
Annual accounts 2021198,1 k €↑
2020
Annual accounts 202064,2 k €↑
2019
Annual accounts 201948,7 k €↓
2018
Annual accounts 201857,1 k €↑
2017
Annual accounts 201726,8 k €↓
2016
Annual accounts 201646,2 k €↓
2015
Annual accounts 201546,6 k €↓
2014
Annual accounts 201499,3 k €↑
2013
Annual accounts 201367,1 k €↓
2012
Annual accounts 201283,1 k €↑
2011
Annual accounts 201174,2 k €↓
2010
Annual accounts 201079,3 k €↑
2009
Annual accounts 200932,1 k €↑
2008
Annual accounts 2008822,4 €↑
2007
Annual accounts 2007-1,9 k €↓
2006
Annual accounts 2006-1,6 k €
14/01/2003
IncorporationPrivate limited company

INSIDE MANAGEMENT

Overview

Identity

Financials

Valuation

Indicative valuation

Board of directors

Financials

Full financial information

Financial ratios

Annual accounts filings

Valuation

Indicative valuation

Directors & structure

Board of directors

Ownership and network

Publications

Belgian Official Gazette publications

Similar companies

Similar companies

Timeline

Timeline

Registered offices

Company names

Events