| Company name | Reg. code |
|---|---|
| DIAROK OÜ kustutatud (former name Runicgranite OÜ) | 14290792 |
| DIARK OÜ | 17420367 |
| DIANOS OÜ kustutatud | 10643696 |
| DIAPOS OÜ kustutatud | 12964134 |
| DIATOM OÜ kustutatud | 10013044 |
| DIAMON OÜ kustutatud | 14564350 |
| DIAROOS OÜ kustutatud | 14221259 |
| DIACO OÜ | 14557031 |
| DIASO OÜ | 10707226 |
| DIATO OÜ | 14266440 |
| DIART OÜ | 11380678 |
| DIARA OÜ kustutatud | 11121155 |
| DIATON-GRUPP OÜ | 10727619 |
| DIARDI MATS OÜ | 16329535 |
| DIARONA INVEST OÜ | 10790121 |
| DIANOR ONE OÜ | 17346464 |
| TASET DIARER OÜ kustutatud (former name Fercomf OÜ) | 14406036 |
| DIAPOL GRANITE OÜ | 10613494 |
| DIALOG GROUP OÜ kustutatud | 11025301 |
| DIALOG LINE OÜ | 11384742 |
| CONSULT DIALOG OÜ kustutatud | 12543131 |
| FUTURE DIALOG OÜ | 16154774 |
| DIARI KESKUS OÜ | 10160472 |
| DIARA ARENDUS OÜ | 12889154 |
| DIARA INFRA OÜ | 12373829 |
| DIARE DANCEWEAR OÜ (former name Mätlik Invest OÜ) | 16664943 |
| DIARA DESIGN OÜ | 16720736 |
| DIARA TEENUSED OÜ | 12671878 |
| DIARA TRANSPORT OÜ (former name z-transport OÜ) | 12254674 |
| GLOBAL KOREAN DIALOG OÜ (former name KOREAN FRIENDSHIP ASSOCIATION OÜ) | 14260331 |
| DIARI & FRANK CONSULTING OÜ kustutatud | 12781652 |
| DAROK OÜ | 16340459 |
| TANTSPIRATSIOON OÜ kustutatud (former name Diaree OÜ) | 14004361 |
| ANOD OÜ (former name Diakon OÜ) | 14110821 |
| DIDRIK OÜ | 16328760 |
| TIPROK OÜ | 17407102 |
| MIARON OÜ | 16817631 |
| DICRON OÜ | 12087302 |
| VIAROCK OÜ | 12582993 |
| DIVARO+ OÜ (former name Divaro Pro OÜ) | 17333556 |
| AMAROK OÜ | 11260715 |
| DISAREK OÜ | 10223209 |
| KEYSWEM OÜ (former name DIAFOX CONSULTING OÜ) | 14102224 |
| AIROK OÜ | 10900160 |
| DARKO OÜ | 16935891 |
| DIPRO OÜ | 11456938 |
| AMAROK MEDIA OÜ | 14961157 |
| DAIRON PLUSS OÜ | 10968040 |
| MAIROK BALTIC OÜ | 12221663 |
| DIVARO-DOMARE OÜ | 17336632 |