| Company name | Reg. code |
|---|---|
| HPR OÜ | 14347931 |
| HPR GRUPI OÜ | 10393905 |
| HPRS SYSTEM OÜ kustutatud | 11353492 |
| HPROOF OÜ (former name WaterReserve OÜ) | 16316410 |
| HPRTEED OÜ | 16189270 |
| HPROFITS OÜ | 16200055 |
| HPROJEKT OÜ kustutatud | 12662769 |
| HPRESOLUT OÜ | 16870654 |
| HAR HAR MAHADEV OÜ kustutatud | 14429267 |
| SPR OÜ | 17025286 |
| HNR OÜ | 14825827 |
| IPR OÜ | 16650778 |
| HKR2 OÜ | 12660902 |
| CPR OÜ | 12708543 |
| MPR OÜ | 14177145 |
| RPR OÜ | 14608685 |
| APR OÜ | 12248805 |
| HPE OÜ | 11420751 |
| HDR OÜ kustutatud | 14058919 |
| HPP OÜ | 10038676 |
| PHR OÜ | 10359765 |
| KPR OÜ | 14378713 |
| HPS OÜ (former name Särasilm OÜ) | 12911586 |
| RPR OÜ kustutatud | 11482261 |
| HKPR OÜ | 12402519 |
| SPR233 OÜ | 17044473 |
| KPR INTERNATIONAL OÜ | 12906332 |
| KPR SPEDITION OÜ | 16668912 |
| KPR SPEDITION OÜ kustutatud | 11414147 |
| SPR NETWORKS OÜ | 11057032 |
| HAAPSALU HMR OÜ | 10190527 |
| HPH INVEST OÜ (former name HPH Finance OÜ) | 16146970 |
| OPR KONSULTATSIOONID OÜ | 14309646 |
| HPK DIGITAL OÜ | 17042899 |
| HBZZ HER OÜ | 17433826 |
| IPR GROUP OÜ | 14342508 |
| HTR BALTIC OÜ (former name LK Leatherworks OÜ) | 14144913 |
| JPR AGRO OÜ | 17069272 |
| HPX STUUDIO OÜ kustutatud | 14078649 |
| AFFAIRE2JPR OÜ | 16596978 |
| JPR PROJEKT OÜ (former name Innocard OÜ) | 14161474 |
| KPR TRANSPORT OÜ | 14675658 |
| NPR BÜROO OÜ | 12749370 |
| HPF GRUPP OÜ kustutatud | 10898427 |
| NPR INFRA OÜ (former name Nordic Polymer Recycling OÜ) | 14151375 |
| HDR TAEVAS OÜ | 12458325 |
| HPG GROUP OÜ kustutatud | 14641501 |
| JPR CAPITAL OÜ | 14523167 |
| HKR EHITUS OÜ | 12632337 |
| HPM DISAIN OÜ | 12480821 |