CMSA operates as an industrial group built around complementary centres of expertise. We bring together specialized sites, distinct know-how, and shared standards to act as one partner for complex, high-precision manufacturing projects.
Organisation of the CMSA group
One industrial partner, structured around complementary expertise
CMSA is organised as a coordinated industrial group. Strategic direction, quality frameworks, and industrial standards are defined at group level, while execution is carried out by specialized sites with clearly defined roles.
This structure allows us to combine depth of expertise with industrial scalability, while ensuring consistency, traceability, and reliability across projects.
Rather than operating as isolated units, CMSA entities work as interconnected centres of competence, mobilized according to project requirements.
Our centres of expertise
Distinct specialties, working together within the group
CMSA Biel/Bienne
Foundry, material expertise, and industrial integration
CMSA Biel/Bienne brings together upstream and transversal capabilities essential to the group. Its activities include foundry and laboratory operations, material development, conception and design, precision machining, and cleanroom manufacturing. As the group’s headquarters, Biel/Bienne plays a central role in coordinating industrial integration, ensuring coherence between material science, design, and production execution. The site also contributes to surface treatment activities within the group.
CMSA Boudry
Very small and highly complex precision parts
CMSA Boudry is specialized in the manufacture of very small, highly complex components requiring extreme precision and repeatability. Its expertise is rooted in micro-machining and tight-tolerance production, serving both watchmaking and medical applications. The site is particularly suited to parts where size, complexity, and functional reliability leave no margin for deviation.
CMSA La Chaux-de-Fonds
Precision manufacturing of complex watch components
CMSA La Chaux-de-Fonds specializes in the production of complex watch components where functional precision and aesthetic requirements must coexist. The site combines advanced machining, engraving, and finishing expertise to deliver components that meet the demanding standards of high-end watchmaking, particularly for parts requiring a high degree of customisation and visual refinement.
CMSA Mittelhäusern
Advanced surface treatments and functional coatings
CMSA Mittelhäusern is dedicated to advanced surface treatment technologies. Its expertise covers functional and protective coatings designed to modify surface properties such as conductivity, durability, resistance, or aesthetic appearance. These capabilities support a wide range of applications across industries and contribute to the functionalisation of components produced throughout the group.
CMSA Saignelégier
Ultra-high-value components for the highest end of watchmaking
CMSA Saignelégier focuses on very high luxury products with exceptional added value. Beyond technical complexity, its expertise lies in delivering components where exclusivity, finishing excellence, and perceived value are paramount. The site operates on small to medium series for the most demanding watchmaking applications, where every detail contributes to the final product’s distinction.
Surface treatment: a transversal expertise within CMSA
A structured capability spanning several locations
Surface treatment is a formalized transversal expertise within CMSA. It brings together activities and know-how across four locations. This organisation allows CMSA to apply consistent standards, shared processes, and coordinated development across surface technologies, supporting both functional and aesthetic requirements. Surface treatment plays a key role in enhancing performance, durability, and appearance of components manufactured across the group.
Want to learn more about CMSA?
To better understand who we are, how we work, and what the CMSA identity stands for, explore the following articles:
- CMSA: a new name for a unified, future-ready industrial partner
Understand why the group adopted a single identity and what this change reflects about our organisation. - Shaping the CMSA identity to reflect how we work
Discover the logic behind the CMSA visual identity and how it expresses our industrial culture and way of working. - CMSA name change: what it means for our partners
Find practical answers about the implications of the name change for customers, partners, and ongoing collaborations.
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