Internationally renowned trans-national corporations and global players, such as Endress + Hauser, Neoperl and Habasit, have their head offices in Reinach. Other big corporations operating in Reinach are chemical companies such as Roche and Clariant, as well as international high technology companies such as Siemens. Just as important for the economic prosperity of the community are, of course, the many small and medium-sized companies from various branches of trade and industry, through to the new start-ups in the business park that all make an important contribution to Reinach's rising economic value added.