| Company name | Reg. code |
|---|---|
| DIAN OÜ | 11559153 |
| QI DIAN OÜ | 14923524 |
| DIAN PROJECT OÜ | 14629552 |
| DIAN SOLUTIONS OÜ | 16387113 |
| DIAN CONSULTING OÜ kustutatud | 14821657 |
| DIAN CAPITAL GROUP OÜ | 12383087 |
| DIANI EP OÜ | 14957121 |
| DIANA VARA OÜ | 14867547 |
| DIANA ALLAS OÜ kustutatud | 12112615 |
| DIANA GRUPP OÜ kustutatud (former name Diana Gurpp) | 12103225 |
| DIANA NAILS OÜ | 17050930 |
| DIANA INVEST OÜ | 14240149 |
| DIANA GUKOVA OÜ | 14390469 |
| SALONG DIANA OÜ kustutatud | 10031734 |
| DIANA AGENCY OÜ | 12075486 |
| DIANA COMPANY OÜ | 12410967 |
| DIANA LEHISTE OÜ | 14627197 |
| DIANA ILUNURK OÜ | 14661047 |
| DIANA ANDRIOT OÜ | 17028497 |
| DIANA PEREARST OÜ | 14317551 |
| DIANA LILLEÄRI OÜ | 12989298 |
| DIANA DENISSOVA OÜ | 12749128 |
| DIANA NAHASALONG OÜ kustutatud | 10336770 |
| DIANE ILUTEENUSED OÜ | 14680286 |
| DIANA TAVANDITEENUSED OÜ kustutatud | 10533105 |
| DR. DIANA KIRSS OÜ | 11537981 |
| DIANA PJ TEENUSED OÜ | 16717906 |
| DIANA VENE ARCHITECTS OÜ | 14011881 |
| DIAZ OÜ | 12881968 |
| DIAS OÜ | 14511922 |
| DIAR OÜ | 16510232 |
| DIAL INVEST OÜ | 11759136 |
| DIAL RAAMATUPIDAMINE OÜ | 12215556 |
| FORTES DIAS OÜ kustutatud | 11697903 |
| DIAL GROUP OÜ kustutatud | 14762989 |
| DIAS GRUPP OÜ | 12603494 |
| ABLA DIAU OÜ kustutatud (former name OÜ AK Crystek) | 12262952 |
| DIAL SECURITY OÜ (former name Nord Catering OÜ) | 14647840 |
| DIAH AMBAR OÜ | 17239604 |
| BUENOS DIAS OÜ kustutatud | 12214901 |
| DIAL CLEAR OÜ | 17229971 |
| R- DIAS OÜ | 10035330 |
| DIAL EHITUS OÜ | 11434612 |
| K-DIAG OÜ | 14517988 |
| DIAL TRANSPORT OÜ kustutatud | 14774797 |
| DIAZ PHOTO OÜ | 16033680 |
| DIA STYLE OÜ kustutatud | 12498599 |
| MEIO-DIA OÜ kustutatud (former name Sailor-man OÜ) | 12840863 |
| DIA GRANDE OÜ | 17038277 |
| DIA TRANS OÜ kustutatud | 12330493 |