ERMESYS is conveniently located between the major ports of Le Havre and Rouen, from where we help our clients on projects worldwide.
Our team of dedicated engineers and qualified workers can design and manufacture complex metal structures, to the most stringent custom requirements.



Design and conception

according to :

  • ASME, AISC, API, AWS, Codap,
    Codeti, Eurocode, etc.
  • Client specifications & industry
    best practices

Computer modelling :

  • Overview and detailed designs
  • 2D, 3D and cinematic views 

Procurement :

  • Steel & stainless steel products (plates, pipes, fittings, etc…)
  • Equipment and accessories such as valves, hydraulic and electric parts, etc.

Project Management :

  • French/English bilingual teams
  • Experience in projects up to €3m in value 


Engineering team integrated with the workshop for complete in-house, end-to-end projects


4000 m2 production facility

7m Available Hook Height 

Up to 30T lifting capability with gantry cranes

Welding workshop

  • MIG, TIG, ARC and submerged ARC welding capabilites

  • Qualifications : ASME IX, AWS D1.1, EN 15614

Steel forming workshop :

Bending, Rolling and Cutting Capabilities

Mechanical workshop :  Lathe and milling capabilities

Fully equipped sandblasting cabin (15x4m)

Fully equipped painting cabin (30x4m)

Integrated test workshop 

  • High pressure test bench (up to 1000 bar)

  • Hyperbaric test chamber (up to 250 bar)

  • Traction test facility (up to 500T)



French / English

ISO 9001:2008

ISO 3834-2


+33 (0)2 32 42 47 83

1, Chemin des Palettes
27290 Glos Sur Risle
Normandy, France

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