Schaffner Holding AG is engaged in the development and production of solutions which ensure the operation of electronic systems. The company's portfolio includes EMC/EMI components, power quality filters and othe related services. It is organized into three business segments - Electromagnetic Compatibility (EMC), Power Magnetics (PM) and Automotive (AM). EMC segment develops and manufactures standard and custom components that protect power electronic systems from line interference; PM segment develops and manufactures components to ensure the reliable operation of power electronic systems; and AM segment supports automobile manufacturers and system suppliers with its specialized EMC expertise. The majority of its revenue is derived from EMC segment.