Acciona
AH Industries
ATS Wind Energy Services
Yinhe Avantis
BiFab
Bladt Industries
Danvægt
Deugro
Dong Energy
Frank Mohn Fusa
Gamesa
Hansen Transmissions int.
IMPSA
MAN
Meridian Energy
MT Højgaard
NextEra (FPL)
Ormonde
REpower Systems
Samsung
Siemens Wind Power
STATOIL
STEELCON
Suzlon
Technip Offshore Finland
Vestas
Win&P
WinWind

National crane standardization group S-353 with reference to International Techinal Committee CEN/TC 147 Cranes – Safety.