DEMGY
French plastics group molding high-performance thermoplastics and composites for aerospace, defense, medical, and automotive, with ten sites across Europe and the US.
What they do
DEMGY manufactures and industrializes complex plastic and composite solutions that are lighter than metal, for sectors including aerospace, defense, medical, automotive, energy and sports and leisure. Its head office is in Saint-Aubin-sur-Gaillon, France, and the group operates ten sites across Europe and the US.
The group describes a circular Multiplasturgy concept covering 15 areas of expertise, including injection molding, machining and 3D printing. Its Atlantique site states EN 9100, IATF 16949 and ISO 13485 certification, and its Frasne site states ISO 9001, IATF 16949 and ISO 13485, where microinjection of technical thermoplastics is a specialty.
Other processes stated on their site
Capabilities
Injection molding
Injection molding of high performance thermoplastics and composites, including bi-material injection, overmolding, gas-assist molding and microinjection at group sites.
CNC machining
Machining of technical and high temperature polymers as part of the group Multiplasturgy offer, alongside molding and finishing.
3D printing
3D printing listed among the group expertises, including its Atelier3D activity for high performance polymer parts.
Commercial terms
Minimum order
Not stated
Lead time
Not stated
Quoting
By request
Cost tier $$$$ of $$$$, ProductFlo classification
DEMGY is a French high performance plastics group serving aerospace, defense, medical and automotive with AS9100, IATF 16949 and ISO 13485 stated, which matches the high-reliability tier.
Alternatives
Compare side by side- PROTIQ
German provider in Blomberg offering 3D printing, CNC machining and injection molding through an online marketplace model, in tier 3.
- Phillips Medisize
US molder in Hudson, Wisconsin focused on medical injection molding at group scale, in the same high-reliability tier.
- FIT Additive Manufacturing Group
German additive group making prototypes, tools and series parts with CNC milling and injection molding in house, in tier 3.
- C&J Industries
Employee owned Pennsylvania molder specializing in medical and pharmaceutical molding with cleanroom molding and in-house tooling.
Sources
Not verified
- ITAR status
- MOQ
- lead time
Last verified November 11, 2026. Listings are informational and are not endorsements. Cost tiers are ProductFlo's classification, not quotes: confirm pricing, lead time and capability with the vendor.