ALTHEORA, industrial equipment manufacturer, leader in the design and manufacture of complex parts and subassemblies of new generation composite materials and polymers.
Known since 1934 the Group has also developed expertise and cutting-edge technologies in such varied and demanding sectors as rail, aeronautics, or automotive industries.
ALTHEORA offers 100% integrated solutions, from R&D to production and co-develops new products with its customers in response to future major issues such as new mobility or smart cities. It also integrates an innovation laboratory: ALTHEORA shift.

The Group is built around centers of excellence:
– COMPOSITE MATERIAL APPLICATIONS: MECELEC Composites masters all the major composite processes: Thermosetting compression (SMC), Thermoplastic Injection, Contact, Infusion and RTM (resin transfer molding). It processes all existing materials, and produces technically sophisticated parts (non-standard sizes, resistant to extreme temperatures, fireproof, with strong electrical insulation properties, etc.)
– FINISHING WORK ON INDUSTRIAL PARTS: MC Coating is an industrial painting and coating specialist. It develops technological skills in liquid and powder painting. The company offers finishing work for parts up to the end product (painting, marking, insertion, cabling, surface treatments, etc.).
The Group is backed by the know-how of its employees spread over 5 plants in the Auvergne-Rhône-Alpes region (France) and one site in Romania. It currently supports more than 500 customers worldwide.

– ALSTOM
– ANSALDO
– BOMBARDIER
– BODET
– HITACHI
– KTK
– PANDROL
– SNCB
– SNCF
– SCHUNK
– SIEMENS
– RATP
– VOSSLOH

ALTHEORA has joined the United Nations Global Compact (UN Global Compact) since 2019
and thus undertakes to respect its ten principles in the field of human rights, labour law,
Environment and the fight against corruption.

ALTHEORA is part of the Coq Vert BPI France community, a community of companies involved in the ecological transition. It offers its members a set of concrete tools to promote the exchange of good practices, put them in visibility and accelerate their environmental and energy transition.
We have initiated a certification process with the BCorp label. This label reconciles the company’s financial and non-financial objectives by valuing value creation in its entire ecosystem.
We are ISO 9001 certified and committed to decarbonization, we are part of the first promotion of the industrial decarbonization accelerator of ADEME.

For over 70 years, MINILAMPE, a French manufacturer, has been designing, producing and supplying incandescent and LED lighting solutions for specific requirements. Equipped with a design office, a manufacturing lines and a laboratory for inspection and measurements, MINILAMPE can provide you with a complete solution incorporating mechanics, electronics, optics and wiring. Together, we can answer to the challenges of tomorrow with tailor-made lighting, whether LED or incandescent, based on MINILAMPE’s core expertise.

ISO 14001 standard – The adoption of this ISO14001 certification demonstrates our ongoing commitment to the environment and sustainable development within MINILAMPE. It is a reflection of the continuous improvement system implemented within the company, and translates on a daily basis into an ability to increase efficiency and provide a quality product or service that complies with customer requirements and applicable legal and regulatory requirements.
The CSR approach ensures and demonstrates that the actions, processes, products and services undertaken by the company meet the established quality requirements and contribute to the objectives of sustainable development and social responsibility, in order to constantly ensure the satisfaction of our customers and external service providers.

MINILAMPE is also engaged in the ECOVADIS since 2024 with Silver distinction.

Clayens is an international industrial group specializing in the design, development and manufacturing of high value-added parts and sub-assemblies. The group supports its customers from concept to mass production, relying on strong expertise in polymers, composites and metal processing. 

As a true industrial partner, Clayens is involved early in projects to co-design innovative, reliable and cost-effective solutions. Its wide range of know-how includes plastic injection molding, compression and overmolding, thermoset and thermoplastic composites, machining, assembly and functional integration, enabling the group to meet complex and demanding requirements. 

Clayens serves a broad range of industrial markets such as railway, automotive, aerospace, healthcare, energy, building, electronics and industrial equipment. This multi-market positioning fosters innovation and the transfer of best practices across sectors. 

With industrial sites in Europe, North America and North Africa, Clayens operates close to its customers and their markets, ensuring agility, competitiveness and supply chain security. Innovation, industrial performance and responsibility are at the core of the group’s strategy, with continuous investments in technology, digitalization and people development. 

 Clayens is committed to responsible and sustainable industrial development across all its activities, integrating environmental, social and ethical principles into its strategy. 

These commitments are recognized through leading international frameworks. Clayens is assessed by EcoVadis and, in 2025, achieved a score of 78/100 (silver medal), ranking the group in the top 15% of all rated companies and the top 3% in the “Plastics article manufacturing” sector. Several Clayens sites are ISO 14001 certified, demonstrating a structured approach to environmental management and continuous improvement. The group is also a member of the Coq Vert community, reflecting its active role in the ecological transition. 

Through energy efficiency initiatives, responsible sourcing and the development of more sustainable solutions, Clayens works to reduce its environmental footprint while ensuring long-term industrial performance.