| Company name | Reg. code |
|---|---|
| TELEFANK OÜ | 16547723 |
| TELELINK OÜ | 16461275 |
| TELEVÄRK OÜ | 11016122 |
| TELEVANT OÜ | 14491579 |
| TELEMARK HULGI OÜ | 10675199 |
| T-TELEFON OÜ | 10287014 |
| ELEKS TELEFON OÜ | 10268212 |
| DEPOZIT TECHNOLOGIES OÜ kustutatud (former name Telemann Group OÜ) | 14593498 |
| DEBT COLLECTION SERVICES OÜ (former name AA1 Telemark OÜ) | 11532295 |
| BUNTER ELEFANT OÜ kustutatud | 16177083 |
| MWICS OÜ (former name Relefant OÜ) | 14543052 |