- Acer
- Apple
- ASUS
- Casio
- Compaq (HP)
- D.O.Tel
- Dell
- FIC
- Fujitsu-Siemens
- Garmin
- Hitachi
- HP iPaq
- IBM
- Intermec
- LG
- Micro-Star
- MiTAC (Mio Technology)
- Motorola
- NEC
- Nokia
- NTT DoCoMo
- Palm, PalmOne
- Palmax
- Philips
- Pocket Navigator
- Psion
- Rover (Россия)
- Royal
- Samsung
- Sharp
- Sony
- Symbol Technologies
- Toshiba
- TRG
- Vadem
- ViewSonic
- Xircom