| 1.
| Q.R. Spex, Inc. |
🇺🇸 Tulsa, OK, United States |
3 |
| 2.
| QR S.r.l. |
🇮🇹 , Italy |
1 |
| 3.
| QR SRL |
🇮🇹 Bologna, Italy |
1 |
| 4.
| QRS INTERNATIONAL AG |
Ruggell, Liechtenstein |
1 |
| 5.
| QRS MUSIC TECHNOLOGIES, INC. |
🇺🇸 Naples, FL, United States |
4 |
| 6.
| QRS Music Technologies, Inc. |
🇺🇸 Las Vegas, NV, United States |
2 |
| 7.
| QRS MUSIC TECHNOLOGIES, INC. |
🇺🇸 Seneca, PA, United States |
4 |
| 8.
| Qrsciences Pty. Ltd. |
🇦🇺 , Australia |
2 |
| 9.
| QRSCIENCES PTY. LTD. |
🇦🇺 WESTERN AUSTRALIA, Australia |
1 |
| 10.
| QRSciences Pty. Ltd. |
🇦🇺 Cannington, WA, Australia |
1 |
| 11.
| QRSciences Pty. Ltd. |
🇦🇺 Cannington, Western Australia, Australia |
1 |
| 12.
| QRSciences Pty. Ltd. |
🇺🇸 Australia, WA, United States |
1 |
| 13.
| QRSCIENCES PTY.LTD. |
🇦🇺 Cannington, Australia |
1 |
| 14.
| QRShield LLC |
🇺🇸 Jersey City, NJ, United States |
2 |
| 15.
| QRSkin GmbH |
🇩🇪 Würzburg, Germany |
1 |
| 16.
| QRsystem Co.,Ltd. |
🇯🇵 Tokyo, Japan |
1 |