Liling Dongfang Electroceramic Co.,Ltd
China
Pingxiang Huaci Insulators Group Co. Ltd.
Wenzhou Yikun Electric
Georg Jordan
Germany
Suzhou Porcelain Insulator Works
Dalian Insulator Group T&D Co., Ltd
Allied Insulators
United Kingdom
UMEK Group, LLC
Russia
ASAsoft (Canada) Inc.
Canada
Global Insulator Group
Estonia
Balestro – Indústria Eletromecânica
Brazil
Siemens Energy Global GmbH & Co. KG
Hivolt Power System
Norsk Teknisk Porselen Products
Norway
Hubbell Power Systems
United States
MacLean Power Systems
Pfisterer
Preformed Line Products
Newell-PSN
Polycast
PROIZVODNJA OSO d.o.o. (Ltd.)
Croatia
K-Line Insulators Ltd.
Indisol S.A.
Portugal
Eximprod Power Systems S.A.
Romania
Maurizio & Cia Ltda
Zhengzhou Xianghe Group Electric Equipment Manufacturing Co., Ltd.