| Company name | Reg. code |
|---|---|
| BLUE ESTONIA OÜ (former name ET Capital of Europe OÜ) | 12937025 |
| BLUE FIRE ESTONIA OÜ | 16121013 |
| PURE BLUE ESTONIA OÜ kustutatud (former name OÜ Bauhinia.ee) | 14397544 |
| BLUE SHOCK ESTONIA OÜ kustutatud | 12434560 |
| BLUE SAFIRE ESTONIA OÜ | 12788826 |
| BLU MINERAL ESTONIA OÜ | 16998489 |
| BLUEGARDEN ESTONIA OÜ kustutatud | 11934786 |
| BLUEWORKS (NORDICS) OÜ (former name blueworks Estonia OÜ) | 14087016 |
| BLUEMARKET CONSULTING ESTONIA OÜ (former name Agro Mill OÜ) | 12739874 |