CERT

Active

SIREN 531543643 VAT number FR23531543643

CERT is a company registered under SIREN number 531543643, with its registered office in WITTENHEIM. Its main activity falls under the sector: Specialised construction activities. It has 2 establishments. 2 serving directors are recorded in the national business register. Its reported revenue for the financial year ended in 2019 is 0 euros.

Sources: INSEE Sirene, INPI RNE, INPI, annual accounts.

Identity

Legal form: SARL (no further detail)
Activity: Installation works of thermic and air conditioning equipment (43.22B)
Sector: Specialised construction activities
Headcount: 3 to 5 employees
Created: 1 Apr 2011
Share capital: 1,000.00 EUR
Registered with the trade register: 26 Apr 2011
Financial year end: 31/12
Establishments: 2

Directors

LUDOVIC HENRI WINLING 41 years old, 02/1985 Gerant
LUDOVIC WINLING 41 years old, 02/1985 Gerant

Related companies

Companies run by the same people. Statutory auditors and liquidators are excluded: they serve in dozens of unrelated companies, and including them would draw groups that do not exist.

LGLB via LUDOVIC HENRI WINLING

Other companies at the same address

2 other company head offices are registered at this address.

LGLB
ALSACOM

Establishments

53154364300021 registered office 68270 WITTENHEIM
53154364300013 68120 RICHWILLER

Financial strength

Financial score

52 / 100 C

Confidence: low · computed on the financial year ended 31 Dec 2019

Equity to assets (31.9 %): 12.8 out of 30
EBITDA margin: data missing, component not taken into account
Liquidity (143.0 %): 5.7 out of 20
Debt (0.5 %): 15.0 out of 15
Revenue trend: data missing, component not taken into account

formula fin-1.0

Legal score

80 / 100 A

Confidence: high

No insolvency proceedings: 40.0 out of 40
Currently trading: 20.0 out of 20
Age (15.6 years): 20.0 out of 20
Accounts filed recently: 0.0 out of 20

formula leg-1.0

These scores are computed by us from public data, using a published formula. They are not advice, not a guarantee, not a credit decision, and they do not replace a review of the accounts. See how it is calculated

Revenue and earnings

Detailed accounts for this company are not reproduced here, but its main aggregates are public.

Revenue Net income

Financial year	Revenue	Change	EBITDA	Net income
31 Dec 2019	0 €	—	0 €	32,601 €
31 Dec 2018	0 €	-100.0 %	0 €	3,486 €
31 Dec 2017	626,771 €	first year on record	1,796 €	1,934 €

Aggregates published by the French Directorate General for Enterprise, computed from accounts filed with the commercial court.

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Collective agreements

Agreements declared by the employer in its payroll filings.

Convention collective nationale des ouvriers employés par les entreprises du bâtiment visées par le décret du 1er mars 1962 (c'est-à-dire occupant jusqu'à 10 salariés) du 8 octobre 1990.

IDCC 1596 · in force, extended · 1 establishment · declared in July 2026
Convention collective nationale des employés, techniciens et agents de maîtrise du bâtiment du 12 juillet 2006

IDCC 2609 · in force, extended · 1 establishment · declared in July 2026

Labels and certifications

Recognised environmental guarantor (RGE)

Installation de VMC en habitat individuel, collectif ou autre bâtiment inférieur à 1000 m² (5311D108)

issued by qualibat · valid until 6 Feb 2028
Remplacement de chaudière gaz/fuel en logement individuel (5211D107)

issued by qualibat · valid until 6 Feb 2028
Remplacement de chaudière gaz/fuel en logement individuel (5211D101)

issued by qualibat · valid until 6 Feb 2028

Legal notices

Filing of accounts 24 Feb 2026

Court :

Greffe du Tribunal Judiciaire de mulhouse

Type of filing :

Comptes annuels et rapports

Closing date :

31/12/2023

BODACC C n 20260037, annonce n 4980 · Proof of publication (PDF)
Filing of accounts 2 Feb 2026

Court :

Greffe du Tribunal Judiciaire de mulhouse

Type of filing :

Comptes annuels et rapports

Closing date :

31/12/2024

BODACC C n 20260022, annonce n 4534 · Proof of publication (PDF)
Filing of accounts 19 Oct 2023

Court :

Greffe du Tribunal Judiciaire de mulhouse

Type of filing :

Comptes annuels et rapports

Closing date :

31/12/2022

BODACC C n 20230202, annonce n 6225 · Proof of publication (PDF)
Amendment 5 Feb 2023

Court :

Greffe du Tribunal Judiciaire de Mulhouse

Amendment :

transfert du siège social.

BODACC B n 20230025, annonce n 3178 · Proof of publication (PDF)
Filing of accounts 9 Oct 2022

Court :

Greffe du Tribunal de Grande Instance de mulhouse

Type of filing :

Comptes annuels et rapports

Closing date :

31/12/2021

BODACC C n 20220196, annonce n 4473 · Proof of publication (PDF)
Filing of accounts 3 Sep 2020

Court :

GREFFE DU TRIBUNAL D'INSTANCE DE MULHOUSE

Type of filing :

Comptes annuels et rapports

Closing date :

31/12/2019

BODACC C n 20200171, annonce n 2346 · Proof of publication (PDF)
Filing of accounts 31 May 2020

Court :

GREFFE DU TRIBUNAL D'INSTANCE DE MULHOUSE

Type of filing :

Comptes annuels et rapports

Closing date :

31/12/2018

BODACC C n 20200104, annonce n 1442 · Proof of publication (PDF)

Public contracts won

6 current contracts

COMMUNE DE KINGERSHEIM (MAIRIE) 26,050 € · 10 Jun 2021

Travaux de rénovation complète de la Maison Bleue située à Kingersheim: Lot 6: Chauffage sanitaire
COMMUNE DE KINGERSHEIM (MAIRIE) 3,250 € · 12 Apr 2021

Construction d’un périscolaire maternel sur le site de l’école Louise Michel: Lot 17: INFILTROMETRIE
COMMUNE DE KINGERSHEIM (MAIRIE) 77,044 € · 12 Apr 2021

Construction d’un périscolaire maternel sur le site de l’école Louise Michel: Lot 16: ELECTRICITE
COMMUNE DE KINGERSHEIM (MAIRIE) 32,629 € · 12 Apr 2021

Construction d’un périscolaire maternel sur le site de l’école Louise Michel: Lot 15: EQUIPEMENT OFFICE
COMMUNE DE KINGERSHEIM (MAIRIE) 5,657 € · 30 Jul 2020

Construction d’un périscolaire en bâtiments modulaires pour l’école VDE de Kingersheim: Lot 2: Réseaux eau et électricité
COMMUNE DE KINGERSHEIM (MAIRIE) 30,735 € · 30 Jul 2020

Construction d’un périscolaire en bâtiments modulaires pour l’école VDE de Kingersheim: Lot 1: Voirie et Réseaux Divers

Source: essential public procurement data (DECP), Open Licence 2.0. Only the current version of each contract is shown.

Annual accounts as PDF →

Change history

officer_appointed (empty) → Gerant 9 Oct 2026
officer_appointed (empty) → Gerant 9 Oct 2026
registered_address (empty) → 12 Rue de la Hardt 68270 Wittenheim 2 Oct 2026

Frequently asked questions about CERT

What is the SIREN number of CERT?: The SIREN number of CERT is 531543643. Its intra-community VAT number is FR23531543643.
Where is the head office of CERT?: Head office address: 12 RUE DE LA HARDT, 68270 WITTENHEIM.
When was CERT founded?: CERT was founded on 1 Apr 2011.
What does CERT do?: Its declared main activity is: Installation works of thermic and air conditioning equipment (NAF code 43.22B).
Who runs CERT?: The officers listed in the register are LUDOVIC HENRI WINLING (Gerant), LUDOVIC WINLING (Gerant).
What is the revenue of CERT?: The latest published revenue is 0 €, for the 2019 financial year.
How many employees does CERT have?: The declared headcount is 3 to 5 employees. Insee data for 2024.
Is CERT subject to insolvency proceedings?: No ongoing insolvency proceedings are published in the BODACC for this company.