Zeller International

We are the leading phyto-pharmaceutical company in Switzerland and have a global network of partners. We are continuously looking for new in- and out-licensing opportunities in selected regions.

Zeller is Switzerland’s No.1 Brand among phyto-pharmaceuticals. Based on the vision of pharmacist and founder Max Zeller (1834-1912), we are passionate about evidence based natural therapies and about inspiring people to take control of and invest in their wellbeing. We develop products and services that deliver a more natural approach to health, based on our expertise: from the seed to the finished product.

Max Zeller Söhne AG is a Swiss family-owned phyto-pharmaceutical company, specialized in the development, production and marketing of phyto-pharmaceuticals with clinically proven efficacy, safety and tolerability. Through research, rigorous processes, quality controls and extensive product testing throughout our value chain, we place the utmost importance in maintaining the highest standards to deliver medicines that become doctors’ first choice in the first-line treatment.

International Business

Partnerships are a key success factor to our global growth strategy. Over the years, we have built an extensive international business with our global network of partners. Today, our products are available in more than 25 countries around the world and are actively recommended by healthcare professionals.

Our aim is to further strengthen our position in the research, development and marketing of phyto-pharmaceuticals, ultimately contributing to the health and quality of life our patients.

Millions of patients worldwide have benefited from the efficacy of Zeller phyto-pharmaceuticals. Thanks to our expertise, clinical evidence and highest quality standards, Zeller products enjoy increasing popularity.

We are constantly looking to expand our international activities through long-term cooperations with global and local licence partners.

We share our extensive knowledge and continuously support our partners with professional product documentation (dossiers in CTD format), scientific material, marketing and PR support, education and product life cycle management.   

Get in Touch

Max Zeller Söhne AG Seeblickstrasse 4 8590 Romanshorn Switzerland

P: +41 71 466 05 00 bd@zellerag.ch

Our Team

In Romanshorn and Uttwil (Vitaplant) around 150 people are employed in numerous disciplines such as biology, agronomy, chemical engineering, pharmacy and medicine.


International Division