- AKKUS (Polish producer of speakers)
- Ambienceaudio (hi-end showroom in Willimantic ? Massachusetts/USA)
- Audio (Polish hi-fi monthly)
- Audiolincs (hi-end showroom in England)
- Audiostereo (Hi-Fi Internet portal)
- Audio This (Polish distributor of electronic devices)
- Audio-Video (Polish hi-fi monthly)
- Bodnar Audio (Polish producer of speakers)
- DAT (hi-end showroom in Szczecin/Poland)
- Delta Audio (hi-end showroom in Częstochowa/Poland)
- DIAGMAK (Polish research institute of vibration)
- Enjoy the Music.com? Review Magazine
- Fidelity Art (distributor anti-vibration accessories of Pro Audio Bono in the United Kingdom)
- Hegel (Norwegian producer of electronic devices)
- Hi-Fi Choice (English hi-fi monthly)
- Hi-Fi Choice ? Polish edition (Polish hi-fi monthly)
- Hi-Fi i muzyka (Polish hi-fi monthly)
- Hi-Fi + (English hi-fi monthly)
- Hi-Fi World (English hi-fi monthly)
- High Fidelity (Polish Internet hi-end monthly)
- Kezard (hi-end showroom in Starogard Gdański/Poland)
- Lotus Hi-Fi (dealer PAB in the United Kingdom)
- Moje Audio (Polish distributor of electronic devices)
- Mono and Stereo (Slovenian Internet hi-end magazine)
- Old School Hi-Fi AB (hi-end showroom in Sweden)
- Szemis Audio Konsultant (Polish distributor of electronic devices)
- Voice (Polish distributor of electronic devices)
