A specialist

in creating complex plastic parts


Delta Plasturgy group has specialised know-how in technical parts with a demand for high performance in:

  • Injection of thermoplastic materials with or without inserts.
  • Compression or transfer of thermosetting materials with or without inserts.
  • Mastery of welding techniques using ultrasound, plastic marking and other processes allowing the assembly and delivery of finished products.

Delta Plasturgy has 60 staff at its manufacturing site Joly Plastics SAS, located in Ezy sur Eure (Normandy, France) which generates a turnover of over €7 million.

Delta Plasturgy group contains the brands Joly Plastics et Girau-Guyard.

Our philosophy

Our ambition is to be a recognised and innovative specialist working on very small and medium-sized series of complex plastic parts.


The company was formed following the acquisition of two now merged SMEs, Joly Plastics SAS and Girau-Guyard SAS, which have historic and recognized know-how in engineering plastic materials and associated transformation technologies, as well as in-depth knowledge of their markets and fields of application.

Our teams are a small size to maintain responsiveness and proximity with our customers, but with a large enough size to allow international development of our business and transmission of our know-how.

Our history

The Delta Plasturgy group was founded in 2010 after the acquisition of two companies, Joly Plastics SAS and Girau-Guyard SAS.


Since its origins, Joly Plastics has favored PPE sectors that are demanding in terms of quality, production organization and product traceability. It then developed in the equipment industry sectors such as industrial valves, equipment intended for the manufacture of optics or even industrial lifting systems. Joly Plastics has recently diversified into the fields of aeronautical, railway, electrotechnical and medical applications.

Since its inception, Girau-Guyard has favored and developed the Aeronautics, Defense, Communication, Electrotechnical and Medical sectors for equipment manufacturers and large aeronautical groups.

2023 : Change of Presidency, Julien Fillot succeeds Jean Jacques Fillot.

2021 : Change of company name, Joly Plastics becomes Delta Plasturgy JP.

2020 : Cap of 5% of the export turnover.

2019 : Acquisition of HEXAFLEX and a 3D printer « POLLEN ».

2018 : Development of the sales department.

2017 : Launch of our international focus strategy.

2016 : Creation of a design office and acquisition of CAD software.

2016 : Absorption of Girau-Guyard SAS by Joly Plastics SAS through universal asset transfer.

2013 : Transfer of Girau-Guyard activity to the Joly Plastics Ézy-sur-Eure site.

2012 : The Delta Plasturgy group launches a voluntary ISO 26000 (CSR) initiative with the help of BPI France.

2011 : The Delta Plasturgy group invests in new injection machines.

2010 : Acquisition of Joly Plastics SAS and its subsidiary Girau-Guyard by the company Delta Plasturgy, managed by Jean-Jacques FILLOT.

2008 : Giraud-Guyard moves to Kremlin Bicêtre in Thiais (94, Val-de-Marne).

2007 : Company Giraud-Guyard acquired by Mr. Alain HENRY and Mr. Philippe BERLAND.

2000 : Joly Plastics SA is transferred to Mr. Alain HENRY and Philippe BERLAND; Joly Plastics SAS is created.

1985 : Daniel HERAUD takes the reins of Giraud-Guyard.

1982 : Joly Plastics becomes Joly Plastics SA under the management of Claude JOLY, son of Marcel JOLY.

1973 : Manufacture of the first hard hat by the company Joly Plastics.

1965 : Creation of SNC Marcel Joly & Fils which marks the start of the diversification of Joly Plastics.

1956 : Creation of the company Girau-Guyard by Mr. GIRAU-GUYARD in Kremlin-Bicêtre (94, Val-de-Marne).

1945 : Marcel JOLY takes the reins of Joly Plastics, which at the time was specialised in the manufacture of “handmade combs”.

1925 : Creation of the company Joly Plastics in Ézy-sur-Eure (27, Eure) by the JOLY family.

Our commitments

Delta plasturgy works hard every day to provide the best possible quality of service to its customers. Each year, we endeavour to modernise and adapt our equipment to changes to our markets and our customers’ needs.
Our actions are part of a committed human resources policy and sustainable development values.


Our hr policy

La is a priority for Delta Plasturgy. We ensure the development of our know-how through regular training which is appropriate for our teams. We train students through work-study contracts in various plasturgy roles such as assemblers, equipment maintenance technicians and plasturgy engineers.

We also encourage working groups on ongoing improvement of occupational safety, the costs of product performance, processes and know-how, using methods such as 5s, amdec and 8d.

Our sustainable development commitments

The group is focused on a voluntary application of the iso 26000 standard – societal and environmental responsibility.

To do this, we agree to:

  • Place our employees, their conditions and their working environments at the core of our concerns.
  • Develop work with esat (vocational rehabilitation centres), where our production requirements allow.
  • Implement the appropriate resources to limit emissions and improve our electricity consumption.

Our partnerships