Zapel S.A.

Poland

Allied Insulators

United Kingdom

Newell (A PGC Company)

United States

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

India

PFISTERER

Germany

EMCO Industries

Pakistan

Norsk Teknisk Porselen Products AS

Norway

PPC Insulators

Austria

Changsha Guoli Electric Equipments

China

Hivolt Power System

China

LAPP Insulators GmbH

Germany

Sinoma Jiangxi Insulator and Electricity Co,. Ltd

China