Izoelektro d.o.o.

Slovenia

Indisol S.A.

Portugal

MacLean Power Systems

United States

Hitachi Energy Transformer Components and Service

Switzerland

Vogel Moulds & Machines AG

Switzerland

Klöckner Desma Elastomertechnik GmbH

Germany

Polycast

Canada

Allied Insulators

United Kingdom

High Voltage Inc.

United States

DALEKOVOD OSO

Croatia

Tridelta Meidensha

Germany

Mosdorfer GmbH

Austria