ACTIVE

SIENA

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Financial year 2025 · closed on 30/09/2025

Net result

12,4 k €

+138.7% YoY

Gross margin

153,4 k €

+187.2% YoY

Equity

503,2 k €

+2.5% YoY

Workforce

0,0 ETP

What does SIENA do?

SIENA is a Private limited company incorporated in 2006. Its main activity is: Management consultancy activities. Its registered office is in Koksijde.

Legal situation

● Normal situation

BCE/KBO no. / VAT

BE 0880.958.750

Incorporation

10/04/2006

Legal form

Private limited company

Registered office

Willem Elsschotlaan(Kok) 1 box 105
8670 Koksijde · FlandreSee on map

Contributed capital

18 600,00 €

Latest accounts

30/09/2025

Average workforce

0,0 ETP

Activities (NACE)

70200Management consultancy activities· main 70220Business and other management consultancy activities 74142Specialised design activities 68203Rental and operating of own or leased real estate 68203Rental and operating of own or leased real estate

Signals

ProfitableSolid equityPositive cashflowPositive EBITDA

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Health score

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✦ Verdict · Analyst summary

Financials

Trend over 19 financial years

	2025		2024		2023		2022		2021		2020		2019		2018		2017		2016		2015		2014		2013		2012		2011		2010		2009		2008		2007
Income statement
Gross margin	153,4 k €	+187%	53,4 k €	+21.3%	44 k €	-8.0%	47,8 k €	-10.3%	53,3 k €	-83.3%	318,3 k €	+138%	133,7 k €	+8.5%	123,3 k €	+30.3%	94,6 k €	+15.9%	81,6 k €	-5.0%	85,9 k €	-10.9%	96,4 k €	-21.6%	122,9 k €	+24.7%	98,6 k €	-4.3%	103,1 k €	+12.8%	91,3 k €	+12.7%	81,1 k €	-6.8%	87 k €	+13.6%	76,6 k €
EBITDA	126,5 k €	+172%	46,5 k €	+21.4%	38,3 k €	-11.4%	43,2 k €	-2.8%	44,5 k €	-85.9%	315,4 k €	+149%	126,6 k €	+8.6%	116,6 k €	+30.6%	89,2 k €	+3.0%	86,6 k €	+6.9%	81 k €	-9.8%	89,8 k €	-15.4%	106,1 k €	+8.9%	97,4 k €	+25.8%	77,4 k €	+4.9%	73,8 k €	-2.8%	75,9 k €	-9.3%	83,7 k €	+106%	40,7 k €
Operating result	90,7 k €	+4639%	-2 k €	-142%	4,7 k €	-77.2%	20,8 k €	-7.7%	22,5 k €	-91.9%	278,6 k €	+784%	31,5 k €	-64.4%	88,6 k €	+69.3%	52,3 k €	-16.9%	63 k €	+13.7%	55,4 k €	-16.8%	66,6 k €	-19.0%	82,2 k €	+12.8%	72,9 k €	+25.0%	58,3 k €	+9.8%	53,1 k €	+57.2%	33,8 k €	-14.4%	39,5 k €	+690%	-6,7 k €
Net result	12,4 k €	+139%	-32,1 k €	-163%	50,8 k €	+2750%	1,8 k €	-81.4%	9,6 k €	-95.4%	206,2 k €	+8195%	-2,5 k €	-106%	45,3 k €	+122%	20,4 k €	-20.1%	25,5 k €	+22.9%	20,8 k €	-22.7%	26,9 k €	-26.1%	36,4 k €	+33.9%	27,2 k €	+50.4%	18,1 k €	+28.2%	14,1 k €	+372%	3 k €	-82.0%	16,5 k €	+206%	-15,7 k €
Balance sheet
Equity	503,2 k €	+2.5%	490,8 k €	-6.1%	522,9 k €	+10.8%	472,1 k €	+0.4%	470,3 k €	+2.1%	460,7 k €	+81.0%	254,5 k €	-1.0%	257,1 k €	+21.4%	211,8 k €	+10.7%	191,4 k €	+15.4%	165,8 k €	+14.3%	145 k €	+22.8%	118,2 k €	+44.5%	81,8 k €	+49.8%	54,6 k €	+49.4%	36,5 k €	+62.7%	22,5 k €	+15.3%	19,5 k €	+564%	2,9 k €
Total assets	811,9 k €	-39.9%	1,4 M €	-3.2%	1,4 M €	+9.6%	1,3 M €	+63.8%	777,5 k €	-5.3%	821 k €	-23.4%	1,1 M €	+72.1%	622,9 k €	-5.4%	658,4 k €	+0.7%	654 k €	+2.2%	640 k €	+3.4%	618,8 k €	-4.8%	649,9 k €	-1.5%	659,5 k €	+3.9%	634,5 k €	-3.8%	659,6 k €	+3.8%	635,3 k €	+15.5%	550,3 k €	+27.7%	431,1 k €
Cash	4,1 k €	+79.0%	2,3 k €	-67.0%	6,9 k €	+1.2%	6,8 k €	-21.5%	8,7 k €	+166%	3,3 k €	-80.3%	16,6 k €	-5.5%	17,5 k €	+519%	2,8 k €	-90.3%	29,1 k €	+101%	14,5 k €	+2.0%	14,2 k €	+200%	4,7 k €	-73.5%	17,9 k €	-0.3%	17,9 k €	+361%	3,9 k €	-48.2%	7,5 k €	-70.4%	25,4 k €	+40.4%	18,1 k €
Debts	300,5 k €	-63.2%	817,2 k €	-1.3%	828,2 k €	+9.7%	755,2 k €	+191%	259,3 k €	-16.4%	310,2 k €	-61.1%	797,3 k €	+132%	343,8 k €	-19.0%	424,6 k €	-3.6%	440,3 k €	-0.9%	444,2 k €	+0.1%	443,7 k €	-11.6%	501,8 k €	-10.0%	557,7 k €	+0.4%	555,4 k €	-9.7%	615,2 k €	+0.4%	612,9 k €	+15.5%	530,7 k €	+24.0%	428 k €
Other
Workforce	0,0 ETP		0,0 ETP		0,0 ETP		–		–		–		–		–		–		–		–		–		–		–		–		–		–		–		–

Estimate

Indicative valuation

As an indication, this company is worth

between 250 k€ and 500 k€

See the valuation

Governance

Board of directors

Seen on filing of 30/09/2025 · 2 active · 2 ended

Active mandates

Nathalie Hillaert

Director · since 18 avril 2007

Active

Werner Nies

Director · since 10 avril 2006

Active

Ended mandates

Nathalie Hillaert

Manager · since 18 avril 2007

Ended

Werner Nies

Manager · since 10 avril 2006

Ended

At this address

Other companies at this address

Company	CBE no.
PACHIM● Active	0454.084.912

Annual accounts

Full financial information

	2025	2024	2023	2022	2021	2020
Type of account	Abridged model	Abridged model	Abridged model	Abridged model	Abridged model	Abridged model
Start of the financial year	01/10/2024	01/10/2023	01/10/2022	01/10/2021	01/10/2020	01/10/2019
Closing of the financial year	30/09/2025	30/09/2024	30/09/2023	30/09/2022	30/09/2021	30/09/2020
Length of the financial year	12 months	12 months	12 months	12 months	12 months	12 months
Filing date	31/03/2026	15/04/2025	11/04/2024	08/05/2023	21/03/2022	28/04/2021
General meeting	20/03/2026	21/03/2025	15/03/2024	17/03/2023	18/03/2022	19/03/2021
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

Ratios

Financial ratios

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Filings

Annual accounts filings

21 filings with the NBB

Model	Closing	General meeting	Filed	Language	Document
Abridged model	30/09/2025	20/03/2026	31/03/2026	Dutch	PDF
Abridged model	30/09/2024	21/03/2025	15/04/2025	Dutch	PDF
Abridged model	30/09/2023	15/03/2024	11/04/2024	Dutch	PDF
Abridged modelCorrection	30/09/2022	17/03/2023	08/05/2023	Dutch	PDF
Abridged model	30/09/2022	17/03/2023	20/03/2023	Dutch	PDF
Abridged model	30/09/2021	18/03/2022	21/03/2022	Dutch	PDF
Abridged model	30/09/2020	19/03/2021	28/04/2021	Dutch	PDF
Micro model	30/09/2019	20/03/2020	30/04/2020	Dutch	PDF
Micro model	30/09/2018	15/03/2019	18/03/2019	Dutch	PDF
Micro model	30/09/2017	16/03/2018	10/04/2018	Dutch	PDF
Abridged model	30/09/2016	17/03/2017	29/03/2017	Dutch	PDF
Abridged model	30/09/2015	18/03/2016	31/03/2016	Dutch	PDF
Abridged model	30/09/2014	20/03/2015	31/03/2015	Dutch	PDF
Abridged model	30/09/2013	21/03/2014	31/03/2014	Dutch	PDF
Abridged modelCorrection	30/09/2012	15/03/2013	11/06/2013	Dutch	PDF
Abridged model	30/09/2012	15/03/2013	19/04/2013	Dutch	PDF
Abridged model	30/09/2011	16/03/2012	05/04/2012	Dutch	PDF
Abridged model	30/09/2010	18/03/2011	28/04/2011	Dutch	PDF
Abridged model	30/09/2009	19/03/2010	24/03/2010	Dutch	PDF
Abridged model	30/09/2008	20/03/2009	23/03/2009	Dutch	PDF
Abridged model	30/09/2007	21/03/2008	27/03/2008	Dutch	PDF

Estimate

Indicative valuation

Order of magnitude

As an indication, this company is worth

between 250 k€ and 500 k€

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.

Governance

Board of directors

Seen on filing of 30/09/2025 · 2 active · 2 ended

Active mandates

Nathalie Hillaert

Director · since 18 avril 2007

Active

Werner Nies

Director · since 10 avril 2006

Active

Ended mandates

Nathalie Hillaert

Manager · since 18 avril 2007

Ended

Werner Nies

Manager · since 10 avril 2006

Ended

Shareholders

Ownership and network

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Try for 7 days

Belgian Official Gazette

Belgian Official Gazette publications

Registered office24/09/2025
MAATSCHAPPELIJKE ZETEL
PDF
Mandates21/10/2021
STATUTEN (VERTALING, COÖRDINATIE, OVERIGE WIJZIGINGEN, ) - WIJZIGING RECHTSVORM - ONTSLAGEN - BENOEMINGEN
PDF
Registered office05/08/2020
MAATSCHAPPELIJKE ZETEL - WIJZIGING RECHTSVORM
PDF
Mandates31/05/2007
ONTSLAGEN - BENOEMINGEN - MAATSCHAPPELIJKE ZETEL - ALGEMENE VERGADERING - KAPITAAL - AANDELEN - STATUTEN (VERTALING, COÖRDINATIE, OVERIGE WIJZIGINGEN, )
PDF
Other08/05/2006
RUBRIEK OPRICHTING (NIEUWE RECHTSPERSOON, OPENING BIJKANTOOR, ENZ...)
PDF

Source: Belgian Official Gazette

Competition

Similar companies

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

See the Business plan

2025
Annual accounts 202512,4 k €↑
2024
Annual accounts 2024-32,1 k €↓
2023
Annual accounts 202350,8 k €↑
2022
Annual accounts 20221,8 k €↓
2021
Annual accounts 20219,6 k €↓
2020
Annual accounts 2020206,2 k €↑
2019
Annual accounts 2019-2,5 k €↓
2018
Annual accounts 201845,3 k €↑
2017
Annual accounts 201720,4 k €↓
2016
Annual accounts 201625,5 k €↑
2015
Annual accounts 201520,8 k €↓
2014
Annual accounts 201426,9 k €↓
2013
Annual accounts 201336,4 k €↑
2012
Annual accounts 201227,2 k €↑
2011
Annual accounts 201118,1 k €↑
2010
Annual accounts 201014,1 k €↑
2009
Annual accounts 20093 k €↓
2008
Annual accounts 200816,5 k €↑
2007
Annual accounts 2007-15,7 k €
10/04/2006
IncorporationPrivate limited company

10/15	1 240 000	1 180 000	1 050 000
70	8 630 000	8 120 000	7 940 000
9904	412 000	388 000	301 000
17/49	2 970 000	3 140 000	3 380 000
9087	24,3	23,1	21,8

SIENA

Overview

What does SIENA do?

Trend over 19 financial years

Indicative valuation

Board of directors

Other companies at this address

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