Overview

Constructions Mécaniques de Normandie (CMN) is a shipbuilder headquartered in Cherbourg-en-Cotentin, Normandy, France. The company builds steel, aluminum and composite vessels, including military patrol vessels, research ships and luxury yachts, and also develops marine hydro turbines. It employs an estimated 200 to 500 people and is privately held. CMN serves navies, private yacht owners and the offshore energy sector. In July 2026 it launched its first fishing trawler in thirteen years, a project taken over after the liquidation of Mim.

At a glance

What CMN - Constructions Mécaniques de Normandie makes

The company holds ISO 9001 and ISO 14001 certifications and offers integrated services including crew training and technical maintenance support.

Certifications

CMN - Constructions Mécaniques de Normandie is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:

• ISO 14001 — cmn-group.com

• ISO 9001 — cmn-group.com

Latest developments

• 2026-11-03 — CMN révèle sa première corvette de plus de 100 mètres | Mer et Marine (meretmarine.com)

• 2026-11-02 — CMN présente un nouveau concept de navire de projection multifonctions | Mer et Marine (meretmarine.com)

• 2026-09-28 — Aux CMN, le programme des patrouilleurs hauturiers devrait s’étoffer d’une unité (actu.fr)

• 2026-07-07 — INDUSTRIE - Industrie navale : CMN adapte son outil industriel face à un carnet de commandes soutenu - Informations de la filière maritime en Normandie (normandie-maritime.fr)

• 2026-07-03 — Le chantier naval CMN met à l’eau son premier chalutier en treize ans, projet récupéré après la liquidation de Mim (ouest-france.fr)

• 2025-07-29 — Le groupe CMN Naval lève 85 millions d’euros de financement pour soutenir sa croissance (ouest-france.fr)

Facilities

CMN - Constructions Mécaniques de Normandie is headquartered in Cherbourg-en-Cotentin, Normandy. Public sources also reference these locations:

• France, Germany — cmn-group.com

Company details

CMN is privately held, with an estimated revenue band of $100 to 250 million, and it operates within the CMN Naval group. CMN - Constructions Mécaniques de Normandie has an estimated 200-500 employees, and is headquartered in Cherbourg-en-Cotentin, Normandy.

Frequently asked questions

What does CMN - Constructions Mécaniques de Normandie make?

Constructions Mécaniques de Normandie (CMN) is a shipbuilder headquartered in Cherbourg-en-Cotentin, Normandy, France. The company builds steel, aluminum and composite vessels, including military patrol vessels, research ships and luxury yachts, and also develops marine hydro turbines. It employs an estimated 200 to 500 people and is privately held. CMN serves navies, private yacht owners and the offshore energy sector. In July 2026 it launched its first fishing trawler in thirteen years, a project taken over after the liquidation of Mim.

Where is CMN - Constructions Mécaniques de Normandie headquartered?

CMN - Constructions Mécaniques de Normandie is headquartered in Cherbourg-en-Cotentin, Normandy (51 Rue de la Bretonniere, Cherbourg-en-Cotentin, Normandy, 50100).

How big is CMN - Constructions Mécaniques de Normandie?

CMN - Constructions Mécaniques de Normandie has an estimated 200-500 employees, with revenue in the $100-250M range (estimated).

What certifications does CMN - Constructions Mécaniques de Normandie hold?

CMN - Constructions Mécaniques de Normandie lists ISO 14001 · ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.

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Last verified Nov 2026. Is this your company? Request a correction.