Norsk Teknisk Porselen Products AS

Norway

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

India

Newell (A PGC Company)

United States

Modern Insulators

India

Dalian Insulator Group T&D Co., Ltd

China

Electroporcelana Gamma S.A.S.

Colombia

EMCO Industries

Pakistan

PFISTERER

Germany

Hivolt Power System

China

Pingxiang Best Insulator Group Co., Ltd.

CHINA

Zapel S.A.

Poland

LAPP Insulators GmbH

Germany