- Siemens
- Altivar
- ABB
- Teco
- Inverter Delta
- Fuji Frenic
- Mitsubhisi
- Yaskawa
- Service Inverter INVT
- Service Inverter Slanvert
- Hitachi
- Service Inverter Toshiba
- Service Inverter Rhymebus
- Omron
- Lenze
- Service Inverter KEB
- Service DC Drive
- Service Inverter Invertek
- Acopos - B & R - Industrial Electronic Repair
- Acopos - B & R
