| Ettevõtte nimi | Reg. kood |
|---|---|
| OCTOTEC OÜ | 14880447 |
| OCTODET OÜ | 16056116 |
| OCTOBER DIGITAL OÜ kustutatud | 14914991 |
| OCTOBER COMMUNICATIONS OÜ kustutatud | 16241378 |
| OCTOBER HOLDINGS OÜ | 16648683 |
| DETOTEC OÜ kustutatud | 12147027 |
| KATOTEC OÜ | 12040513 |
| ENEFIT OUTOTEC TECHNOLOGY OÜ | 11693868 |
| COBOTEC GROUP OÜ | 16262104 |
| ECOTEC GLOBAL OÜ | 12158350 |
| VOLTCOM GROUP OÜ | 12151556 |