Located in Switzerland, Raytech AG, was formed in 1995 by development engineers as a totally employee owned company. The unique design approach of the engineering team at Raytech AG has resulted in the development of highly regarded measuring instruments which have set new standards in the electrical testing industry. Raytech goal is to provide its customers with robust test and measurement equipment that are reliable and easy to use.

Epro Gallspach GmbH is a medium-sized enterprise offering flexible manufacturing as well as the opportunity to perform tests, measurements and calibrations of current and voltage transformers in the in-house laboratory. Classical electrical engineering with plenty of experience since 1957 in combination with modern electronics development secures highest accuracy and maximum reliability in high voltage testing. EPRO's standard transformers offer the world is highest accuracy combined with stability over decades, EPRO's automatic measurement systems offer highest accuracy combined with maximum user comfort.

ETL Prüftechnik offers you intelligent CE test systems and test devices in order to audit the electric safety of electrotechnical products. No matter if vacuum, hairdryer, machine tool, transformer or contact clamp - our test devices and automatons ensure your efficiency and process reliability by being easy to operate and using a future-oriented concept of connecting the test devices and systems to the information technology of today and tomorrow. Of course align with all globally established norms and standards.

Isofarad Ltd. was founded in 1992 by electrical engineers specialized in designing and manufacturing medium- and high voltage capacitors. ISOFARAD’s capacitors, voltage dividers and PD filters are present all over the world in HV laboratories and test systems. ISOFARAD are ready to design and manufacture unique products and also offer to repair or renew old or failured high voltage capacitors.