Interpharma is the association of research-based pharmaceutical companies in Switzerland and was founded in 1933 as an association based in Basel. Historically, Interpharma was an establishment of Switzerland’s big research-based pharmaceutical companies. With the opening-up over the last few years and the resulting sharp increase in membership to its present number of 24 research-based pharmaceutical companies, Interpharma has grown to become the umbrella association of research-based pharmaceutical companies in Switzerland. The broad support throughout Switzerland strengthens the position of Interpharma to campaign for the international competitiveness of Switzerland as a research and pharmaceutical center. Interpharma collaborates closely with all those involved in the healthcare sector, especially with the research-based pharmaceutical industry lobbies at home and abroad. Interpharma is a member of the European and international pharmaceutical associations "efpia" and "IFPMA".