Frekvensomriktare
- ABB
- ABB Strömberg
- AEG
- Afag
- Allen Bradley
- B&R
- Beijer
- Berges
- BMR GmbH
- Bonfiglioli
- Bosch Rexroth
- Carlo Gavazzi
- Control Techniques
- Curtis Instruments
- Danfoss
- Danotherm
- Delta Electronics
- Drive-electronic GmbH
- Eaton
- Emotron
- Eurotherm
- Frenic
- FRER
- Fuji
- Fuss
- Garvens
- HAAS
- Hitachi
- HOLEC
- IMO
- Indur
- Invertek
- KEB
- Konecranes
- LABOD
- Lenze
- Leroy Sommer
- Lust
- Mitsubishi
- Moeller
- Nord
- Omron
- Övrigt
- Panasonic
- PDL Electronics
- Phoenix
- Power Eletronics Ltd
- Rasmi Electronics
- Roxburgh
- Schaffner
- Schneider Electric - Telemecanique
- SEW
- SIEI
- Siemens
- Skandialogic
- SMC
- SSD Ltd
- Stöber Antriebstechnik
- Taian
- TDK
- Telemecanique
- Timonta
- Toshiba
- Tyrinvert
- Vacon
- Warner Electric
- WIDAP
- Wiedergut
- Woodward
- Yaskawa