Historical player at your service for offices

Since its inception, we have held unique expertise in the design, installation, and distribution of modular partitions and autonomous pods, both in France and abroad.

Cerenn, a company within the SAPHYR group, brings together the proven experiences of Someta, founded in 1898, and Matfor, founded in 1954.

Launch of the first transformable metal partition

1950 - 1960

Filing of the first fireproof patents

1960 - 1970

Completion of iconic projects, including the 55,000 m2 of partitions for the Montparnasse Tower

1970 - 1980

Formation of the SAPHYR group, composed of Matfor, a manufacturer of removable partitions with aluminum framework, and AUGAGNEUR, a specialist in the design and installation of suspended and acoustic ceilings


Someta joins Matfor within the partitions division of the SAPHYR Group.


Majority acquisition of the SAPHYR group by the ARYES group


Matfor and Someta become Cerenn. Invention of ATOL, a self-contained bubble, as an office pods with controlled atmosphere


Creation of the Design & Build division within the Rhône-Alpes agency


Throughout our history, we demonstrate that it is possible to reconcile innovation, economic dynamism, and ethical commitment through Made in France production, environmentally friendly, like the Emergence collection.

We pay a very special attention to the environment

In designing our products, we multiply initiatives to preserve the environment and combat its degradation. The materials we use preferably consist of recycled products. Each door, each panel is ordered and produced to exact dimensions to minimize waste on our sites. Our factories have long banned any organic solvents. The recovery of powder coating allows the use of the entire raw material, and our surface treatment and powder application processes are classified as “zero waste” installations.

We have thought every detail so that the end-of-life of our products has no environmental impact. The components of our partitions are sorted and valorized for re-use.

Our areas of expertise


From confidential projects to 60-storey towers, our Project teams are organized to handle all types of modular partitioning and installation projects. Once approved, your sales representative ensures the transfer of your project to our construction teams.

Your single point of contact, the Project Manager/Quality Manager, then coordinates the implementation of your project. Acting as a true conductor, they oversee the entire construction process, from conception to delivery, accompanied by their teams.

Regular checkpoints are conducted at crucial stages of your project to ensure the quality of our implementation rules and adherence to your schedule.

Our commitment: Create the spaces you have envisioned for your complete satisfaction !


With Cerenn Service, we offer a range of services to facilitate the creation and evolution of your layouts. Whether dealing with constrained work, a personalized approach, our sense of service knows no bounds.

From simply moving your partitions to a complete overhaul of your spaces, we envision a variety of solutions to intervene while respecting the serenity of your teams.


Do you have a tertiary development project regionally or internationally ?

Cerenn ensures a national presence through its Distribution Sales Managers across France and abroad. In close collaboration with our office of study technicians, our sales representatives assess your technical, acoustic, and aesthetic needs.

Our Engineering office then creates the plans for your layout and initiates the production of your order. Simultaneously, your dedicated sales representative connects you with a member of our network of Distributor Partners, trained in our products. They will oversee the implementation of your project with their installation teams.

Visit our contact page to find the contact information for your Sales Manager in the region!

Contact Us

A know-how
Made in France

Devoted to our original territories: Rimaucourt (Champagne-Ardenne) and Sarre-Union (Alsace), we cultivate the loyalty of our teams and ensure the transmission of unique “trade” expertise in our territory. In this regard, we bring together talents of all generations to ensure our actions continue in a legacy while prioritizing innovation.

Our collections meet the most stringent requirements, and we assert rigorous control over our productions. This is the price we pay to guarantee everyday use for over 20 years.

CSR at the heart of our professions

Discover our commitments

A societal approach

We make the deliberate choice of “Made in France”: wood, steel, joinery have been traditions always present in Champagne and Alsace, the birthplaces of our factories.

Our agencies in Ile-de-France and Rhône-Alpes, in the heart of dynamic economic basins, offer us the opportunity to be close to apprenticeship schools and the academic world to promote training and integration.

An environmental approach

We constantly prefer eco-sourced products and undertake numerous actions to reduce our waste and emissions, or even the use of transportation through local purchases.

With Cerenn Service, 20% of our activity is based on the re-use of existing partitions.

An ethical economic approach

We have chosen “Made in France” permanently, not only out of conviction but also as a guarantee of quality and responsiveness for our clients.

Present for decades in our locations, we therefore claim a major role in our circular economies as employers, clients of our local suppliers, and qualified subcontractors nearby.

What if you were the next to join our team ?

Being part of the Cerenn team means…

  • Joining a company with strong values

  • Becoming a member of a dynamic and innovative group

  • Working alongside passionate individuals, eager to tackle new challenges daily

Join us !