| Ettevõtte nimi | Reg. kood |
|---|---|
| OCTODET OÜ | 16056116 |
| OCTOART OÜ | 17073014 |
| OCTOTEC OÜ | 14880447 |
| OCTOIT OÜ | 17195723 |
| OCTOBER HOLDINGS OÜ | 16648683 |
| OCTOBER COMMUNICATIONS OÜ kustutatud | 16241378 |
| OCTOBER DIGITAL OÜ kustutatud | 14914991 |
| KLIPFONVIL VLAVELGI OÜ (endine nimi Ottomet OÜ) | 16827701 |