A
ABB Power Technologies AB, High Power Laboratory
ABB Switzerland Ltd. - High Power & High Voltage Laboratories
Areva T&D Technology Centre

C
Cable Technology Laboratories, Inc.
Centre D'Essais de Bazet High Voltage Laboratory
CEPEL – Centro de Pesquisas de Energia Elétrica
CERDA
CESI - Centro Elettrotecnico Sperimentale Italiano SpA
Central Power Research Institute, India
Central Research Institute of Electric Power Industry (CRIEPI) - Electric Power Engineering Research Laboratory

E
EDF - Electricité de France Les Renardieres Electrical Equipment Laboratory
EGU High Voltage Laboratory, Zkusebnictví a.s. High Power Laboratory
Energo Com. S.A. - HV Laboratory
EPRI High Voltage Laboratory

F
FGH Engineering & Test GmbH - CESI Group

I
ICMET National Institute for Electrical Engineering - Test Department

K
KEMA T&D Testing Services
Korea Electrotechnology Research Institute
Kinectrics Inc.

L
LABEIN - Electrical Equipment Laboratory
LABELEC - Estudos, Desenvolvimento e Actividades Laboratoriais, S.A.
LCOE-FFII

M
Maxwell Technologies SA

N
NIROO Research Institute (NRI) High Voltage Laboratory

P
Powertech Labs Inc.

S
STRI AB

T
Tampere University of Technology - High Voltage Laboratory
Test Institution of High Voltage Engineering Graz Ltd.

V
VEIKI - VNL Electric Large Laboratories Ltd.