| Company name | Reg. code |
|---|---|
| PRINCIPAL OÜ | 10508024 |
| VIA PRINCIPALE OÜ | 11440724 |
| AVALON COMMODITIES OÜ kustutatud (former name Vendor Principale OÜ) | 14028746 |
| PRINCIPIO OÜ kustutatud | 10683276 |
| PRINCIP OÜ | 14003723 |
| FIRST PRINCIPLE OÜ kustutatud | 14432826 |
| PRINCIPLE MARKETING OÜ kustutatud | 11967231 |
| PRINCIPI FASHION OÜ kustutatud | 12823356 |
| EMFORGE UPFIELD OÜ (former name Principaland OÜ) | 14797278 |