AMTEC

Directors

• SEBASTIEN DANIEL FRANCOIS MACE 51 years old, 04/1975 Gerant et associe indefiniment responsable
• SEBASTIEN MACE 51 years old, 04/1975 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.

• SCI KADISHA via SEBASTIEN MACE
• LCJ via SEBASTIEN DANIEL FRANCOIS MACE

Court decisions

Decisions published by the French Court of Cassation (Judilibre) that cite this company by its SIREN number. Individuals are pseudonymised.

• Interim order, Tribunal judiciaire de Saint-Nazaire 26 May 2026 · no. 26/00209
• Interim order, Tribunal judiciaire de Saint-Nazaire 10 Mar 2026 · no. 25/00367

Other companies at the same address

3 other company head offices are registered at this address.

• LCJ
• GROUPE SEBASTIEN MACE

Establishments

• 43335837100022 registered office 44119 GRANDCHAMP-DES-FONTAINES
• 43335837100030 44240 LA CHAPELLE-SUR-ERDRE
• 43335837100014 44300 NANTES
• 43335837100048 44240 SUCE-SUR-ERDRE

Financial strength

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.

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

Explore similar companies

• CHRISTIAN LONGE
• F.I.R.M.A
• MICHEL COQUEREAU
• OMER TEMIZKAN
• RAPHAEL THEBAUD
• TECHNO WOODS 44

• Activities of head offices; management consultancy activities in Grandchamp-Des-Fontaines (44) 140
• New companies in department 44 12,078

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

Legal notices

• Filing of accounts 7 May 2026

  Court :

  Greffe du Tribunal de Commerce de nantes

  Type of filing :

  Comptes annuels et rapports

  Closing date :

  31/12/2025

  BODACC C n 20260087, annonce n 3309 · Proof of publication (PDF)

• Filing of accounts 8 Aug 2025

  Court :

  Greffe du Tribunal de Commerce de nantes

  Type of filing :

  Comptes annuels et rapports

  Closing date :

  31/12/2024

  BODACC C n 20250151, annonce n 5276 · Proof of publication (PDF)

• Filing of accounts 31 Aug 2024

  Court :

  Greffe du Tribunal de Commerce de nantes

  Type of filing :

  Comptes annuels et rapports

  Closing date :

  31/12/2022

  BODACC C n 20240169, annonce n 2075 · Proof of publication (PDF)

• Filing of accounts 28 May 2024

  Court :

  Greffe du Tribunal de Commerce de nantes

  Type of filing :

  Comptes annuels et rapports

  Closing date :

  31/12/2023

  BODACC C n 20240101, annonce n 2500 · Proof of publication (PDF)

• Filing of accounts 4 Sep 2020

  Court :

  GREFFE DU TRIBUNAL DE COMMERCE DE NANTES

  Type of filing :

  Comptes annuels et rapports

  Closing date :

  31/12/2019

  BODACC C n 20200172, annonce n 3156 · Proof of publication (PDF)

• Filing of accounts 4 Aug 2019

  Court :

  GREFFE DU TRIBUNAL DE COMMERCE DE NANTES

  Type of filing :

  Comptes annuels et rapports

  Closing date :

  31/12/2018

  BODACC C n 20190149, annonce n 5415 · Proof of publication (PDF)

Change history

• employee_range 11 → 03 4 Nov 2026
• employee_range 11 → 03 3 Nov 2026
• officer_appointed (empty) → Gerant 9 Oct 2026
• officer_appointed (empty) → Gerant et associe indefiniment responsable 9 Oct 2026

Frequently asked questions about AMTEC

What is the SIREN number of AMTEC?

The SIREN number of AMTEC is 433358371. Its intra-community VAT number is FR33433358371.

Where is the head office of AMTEC?

Head office address: 2 RUE DES VALLONS, 44119 GRANDCHAMP-DES-FONTAINES.

When was AMTEC founded?

AMTEC was founded on 3 Nov 2000.

What does AMTEC do?

Its declared main activity is: Installation works of electrical wiring and fittings in all kind of buildings (NAF code 43.21A).

Who runs AMTEC?

The officers listed in the register are SEBASTIEN DANIEL FRANCOIS MACE (Gerant et associe indefiniment responsable), SEBASTIEN MACE (Gerant).

What is the revenue of AMTEC?

The latest published revenue is 0 €, for the 2025 financial year.

How many employees does AMTEC have?

The declared headcount is 6 to 9 employees. Insee data for 2024.

Is AMTEC subject to insolvency proceedings?

No ongoing insolvency proceedings are published in the BODACC for this company.

In the official registers

• French government company directory (data.gouv.fr)
• National business register (INPI)

Further reading

• Business insolvencies in Pays de la Loire, October 2026 edition
• New companies, insolvency proceedings and capital changes published this week
• How we compute the scores, and where this data comes from
• Query this data through the API or from an assistant (MCP)