| Company name | Reg. code |
|---|---|
| OLDBAC OÜ (former name Amper Engineering OÜ) | 12198102 |
| OLDBOY OÜ (former name Oldboy UÜ) | 14876204 |
| OLDHAM ASSETS OÜ | 17033848 |
| HOLDBAR OÜ kustutatud | 16544050 |
| MATARAM LOMBAC OÜ kustutatud (former name Eestidelux OÜ) | 12788861 |
| OLIBA EHITUS OÜ | 17333792 |
| OLBA PROJECT OÜ kustutatud | 12589593 |