| Company name | Reg. code |
|---|---|
| BROCKSTAR OÜ (former name Brockstart OÜ) | 11153480 |
| BROCKSTAR FINANCIAL SVCS OÜ (former name OÜ Tekeport) | 14135655 |
| ROCKSTAR OÜ kustutatud | 11992000 |
| BLACKSTAR OÜ | 16781011 |
| BOOKSTAR OÜ kustutatud | 12370452 |
| ROCKSTAR GROUP OÜ kustutatud | 12101261 |
| ROCKSTAR FITNESS OÜ kustutatud | 16469012 |
| ROKSTAR OÜ | 16929011 |
| BLACKSTAR PREMIUM OÜ (former name MARKETING ADVISORY OÜ) | 16100637 |
| ROCKSTARS CONSULTING OÜ | 16844378 |
| TRUCKSTAR SERVICE OÜ | 12547442 |
| ENSURE OÜ kustutatud (former name Rockstar Roasting OÜ) | 12812223 |
| PREO KOOLITUSED OÜ (former name Laika Rockstar OÜ) | 12427005 |