In 1904, Emil Haefely founded Haefely AG. Based on a patented design for manufacturing resin-impregnated paper insulators, the company grew fast and expanded into high voltage testing in 1922. Over the years, Mr. Haefely became a specialist in the fabrication of electrical apparatus, bushings, and capacitors in insulation technology and high-voltage testing equipment.

Haefely was one of the originators of conductive immunity testing within the EMC field. We cover a multitude of standards and all our EMC equipment is manufactured in Switzerland. Our AXOS compact tester and ONYX ESD simulators are highly sought after by customers.