Norsk Teknisk Porselen Products AS

Norway

Dalian Insulator Group T&D Co., Ltd

China

PPC Insulators

Austria

Zapel S.A.

Poland

Modern Insulators

India

Insulators & Electricals Company (Prop. Hindusthan Urban Infrastructure Ltd.)

India

Hivolt Power System

China

Sinoma Jiangxi Insulator and Electricity Co,. Ltd

China

Newell (A PGC Company)

United States

LAPP Insulators GmbH

Germany

PFISTERER

Germany

Allied Insulators

United Kingdom