KEA
Health assessment and life management of high voltage equipment in New Zealand and Australia, sales representative for PDC equipment
www.kea-consultant.com 

T Service Center Nuremberg
Online services for transformers
www.transformer-service.com 

FKH
Independant institution offering a multitude of diagnostic services on high voltage devices and installations in and around Switzerland
www.fkh.ch  

Weidmann Electrical Technology
Products and services for power and distribution transformers
www.weidmann-systems.com
Electromagnetic Services
www.weidmanntech.com 

Pfiffner Instrument Transformers Ltd
Manufactorer of instrument transformers
www.pmw.ch  

Presco AG
Manufactorer of test instruments for high voltage apparatus
www.prescoag.com