Siegfried Evionnaz, a key player in pharmaceutical innovation in Valais

Siegfried Evionnaz SA has established itself as an essential link in the Siegfried Group, Switzerland's leading pharmaceutical subcontractor. Strategically located in the Chablais region of Valais, the Evionnaz site specialises in the production of active pharmaceutical ingredients (APIs) for innovative and generic medicines. The company plays a crucial role in the pharmaceutical value chain by developing and manufacturing the active substances that form the core of medicines.

A new R&D centre at the cutting edge of innovation

The inauguration of the new research and development centre in November 2024 marks a major turning point for the Evionnaz site. This infrastructure has resulted in the creation of 40 new jobs, bringing the number of highly qualified employees working in research and development at the Valais site to 100. These teams bring together chemists, engineers and process development specialists, who work closely with customers to transform promising molecules into industrialisable active ingredients.

Recognised expertise in APIs

The Evionnaz site has built a solid reputation in complex chemical synthesis and the production of active pharmaceutical ingredients. The company masters the entire value chain, from the development of synthesis processes to large-scale production and the optimisation of manufacturing methods.

‘Our strength lies in our ability to support our customers at every stage of their molecules' life cycle,’ explains the company. This integrated approach enables Siegfried Evionnaz to offer tailor-made solutions, whether for innovative drugs in the development phase or for generics requiring optimised production.

The site has modular and flexible production equipment, enabling it to meet the needs of both small batches for clinical phases and large-scale commercial production. This versatility is a major asset in a sector where adaptability is essential.

Cutting-edge technologies and innovative processes

Siegfried Evionnaz continuously invests in the most advanced technologies to maintain its operational excellence. The site incorporates state-of-the-art chemical synthesis equipment, sophisticated quality control systems and analytical tools to guarantee the purity and compliance of the active ingredients produced. The company has also developed particular expertise in complex synthesis processes, including catalysis, reactions under extreme conditions and multi-step chemical transformations.

Aware of its environmental impact, the Evionnaz site places sustainability at the heart of its priorities. The company invests in green chemistry processes aimed at reducing solvent consumption, minimising waste and improving the energy efficiency of its facilities.

Part of an international group

The Evionnaz site is part of the global strategy of the Siegfried Group, which employs more than 3,500 people worldwide. Founded in 1873 in Zofingen, the group has gradually established itself as one of the world leaders in the production of active pharmaceutical ingredients and the manufacture of medicines in capsule and tablet form.

This international dimension offers the Valais site many advantages: access to a global network of customers, knowledge sharing with other centres of expertise within the group, and the ability to participate in international projects.