Etablissement Coupery et Masson SA is a precision machining company specializing in the manufacture of gears. The company produces all types of gears for complete supply or custom orders and serves a range of industries including aerospace, printing, civil engineering, automotive and robotics. It operates certified quality systems for regulated sectors.

Provides machining and welding services to both professional and private clients. Handles work from prototypes through small- and medium-volume production runs. Capabilities include turning, milling, welding, bending and plasma cutting, supported by an on-site production workshop.

P.M.C. is a specialist in electro-erosion (electrical discharge machining) and the design and manufacture of tooling from drawings or model parts. Its engineering office manages projects from feasibility studies through to press testing and prototype validation. The family-run company, led since 2000 by M. Humbert (40 years' machining experience), is based in Gretz-Armainvilliers (Seine-et-Marne) and serves aerospace, automotive equipment, medical, defense and electronics customers across France, reporting a 98% service rate in 2013.

Located in Noisy-le-Grand on the eastern edge of Paris, this company has been operating since 1947. It provides precision machining services for prototypes and series production, working from models, technical drawings or simple sketches. The company serves industries including medical devices, aerospace and automotive, offering turnkey manufacture from prototype to production runs.

Nébo is a precision machining company based in La Queue-en-Brie (Val-de-Marne), serving high-tech industries since 1961. The firm performs turning, bar-turning (décolletage), milling, engraving, and the manufacture of prototypes and mechanical sub-assemblies. A large CNC machine park enables flexible production of small and medium series and rapid response to customer requests; parts up to 760 × 420 × 420 mm can be machined.