| Company name | Reg. code |
|---|---|
| PYROART OÜ (former name HNNS OÜ) | 14538996 |
| VIKING PROART OÜ (former name Timax-Art Consulting OÜ) | 14261324 |
| PROART SERVICE OÜ | 12689981 |
| PROARX OÜ | 16987847 |
| PROACT HALDUS OÜ (former name JAHI Haldus OÜ) | 17164929 |
| PRIART GRUPP OÜ | 16410125 |