| Company name | Reg. code |
|---|---|
| PROTEAM OÜ | 10995780 |
| REVAL PROTEAM OÜ | 11929265 |
| BALTIC PROTEAM OÜ | 16573689 |
| PROTEAM SYSTEMS OÜ | 11644700 |
| PROTAM OÜ | 14762676 |
| PROTEM OÜ | 16455079 |
| PROTEAC MWAYSENI OÜ kustutatud | 12780701 |
| PROTEA INVEST OÜ | 14216235 |
| PROFITEAM OÜ | 10562495 |
| PROTEGE OÜ kustutatud | 11958864 |
| PROTEMAL OÜ | 10912305 |
| PRODEAL OÜ (former name Fassaadilahendused OÜ) | 14297860 |
| PROITEM OÜ | 12748063 |
| PROGEAR OÜ | 11329950 |
| PROTHAX OÜ kustutatud | 10452559 |
| PROTECH OÜ | 14667142 |
| PROTEJA OÜ | 16588024 |
| PROOTEA OÜ | 17331505 |
| PROLEAD OÜ kustutatud | 12375337 |
| PROTOOM OÜ | 11449527 |
| PROMOTEAM OÜ (former name Promoteam UÜ) | 14672298 |
| PROTERO OÜ (former name Protero UÜ) | 12978260 |
| PRODEAL OÜ kustutatud | 12567433 |
| PROTEXX OÜ kustutatud | 12241476 |
| PROTCOM OÜ | 10965744 |
| PROTEUS OÜ | 10459892 |
| PROTEKO OÜ kustutatud | 12365343 |
| PROTEST OÜ | 17026475 |
| PROGAM OÜ | 11659481 |
| PROTEUS CONSULT OÜ | 16355337 |
| PROTECH FISHER OÜ kustutatud (former name Kalanduse Toetusjuht OÜ) | 12225543 |
| PROTECO SERVICES OÜ | 16416613 |
| PROTECT ESTONIA OÜ | 14929455 |
| PERFECT PROTEIN OÜ | 17098658 |
| SPAG PROGRAM OÜ | 14899487 |
| PROLEAD CORP OÜ kustutatud | 12803520 |
| PROTEIN BYPRODUCTS OÜ kustutatud | 12650499 |
| HEALTHY PROTEIN OÜ | 16854566 |
| PROTEIN ENERGY OÜ | 16578907 |
| SOLID PROTECT OÜ | 16851651 |
| SHINE & PROTECT OÜ | 17142974 |
| PROTEIN GROUP OÜ | 12452902 |
| BUSINESS PROGRAM OÜ | 16912080 |
| PROCESSED PROTEIN OÜ kustutatud | 12794821 |
| IMU PROGRAM OÜ | 16952139 |
| RITTER PROGRAM OÜ (former name PowerCode OÜ) | 16148644 |
| PROTECH STEEL OÜ kustutatud | 12203547 |
| PROTECH PLUS OÜ | 17146274 |
| PROTEGO CONSULTING OÜ | 14777666 |
| PROTEIN INDUSTRY OÜ kustutatud | 12860831 |