| Company name | Reg. code |
|---|---|
| D&D HOLDING OÜ | 10860815 |
| J&D HOLDING OÜ | 17086939 |
| A&D HOLDING OÜ | 14566633 |
| ABIVIIS OÜ (former name D-Holding OÜ) | 10772407 |
| DS HOLDING OÜ kustutatud | 12363676 |
| DOT HOLDING OÜ | 12828454 |
| DLT HOLDING OÜ kustutatud | 14538186 |
| DDX HOLDING OÜ kustutatud | 14813801 |
| DUO HOLDING OÜ | 16682987 |
| DNI HOLDING OÜ | 14961677 |
| DRR HOLDING OÜ kustutatud (former name DRR Holding UÜ) | 14026635 |
| DDI HOLDING OÜ (former name OÜ Astaldi) | 12304053 |
| DJS HOLDING OÜ | 11699813 |
| DIX HOLDING OÜ kustutatud | 12512372 |
| DXB HOLDING OÜ (former name Rietbaan Plaza OÜ) | 14591803 |
| DRS HOLDING OÜ | 16400428 |
| DAO HOLDING OÜ kustutatud | 12680265 |
| DYCO HOLDING OÜ kustutatud | 16198895 |
| DERI HOLDING OÜ kustutatud | 12262521 |
| DANZ HOLDING OÜ | 16935282 |
| DHAS HOLDING OÜ | 14824012 |
| DOA3 HOLDING OÜ (former name OÜ Dainelli) | 12658880 |
| DRRM HOLDING OÜ | 14108132 |
| DEES HOLDING OÜ kustutatud | 16504659 |
| DITS HOLDING OÜ kustutatud | 14986306 |
| DORA HOLDING OÜ | 12247645 |
| DECO HOLDING OÜ kustutatud | 10373966 |
| DDZC HOLDING OÜ (former name Saekoda OÜ) | 14168200 |
| DIRE HOLDING OÜ | 14864394 |
| DROVE HOLDING OÜ kustutatud | 12292508 |
| DSG-Y HOLDING OÜ (former name Printinfo OÜ) | 14055996 |
| DEAKN HOLDING OÜ | 16389773 |
| DKLEX HOLDING OÜ | 16168813 |
| DOREX HOLDING OÜ | 17061081 |
| NEW DR HOLDING OÜ | 17037102 |
| DARQ HOLDINGS OÜ | 16761758 |
| DEGER HOLDING OÜ | 12594588 |
| DENER HOLDING OÜ | 14631282 |
| DELUX HOLDING OÜ (former name Osaühing Delux) | 10341245 |
| DENEB HOLDING OÜ | 12029204 |
| DEMIR HOLDING OÜ kustutatud | 12466353 |
| DURI HOLDINGS OÜ (former name Tribe Beauty Grupp OÜ) | 17218252 |
| DALUZ HOLDING OÜ kustutatud (former name We like to move it OÜ) | 14211551 |
| DEMOOG HOLDING OÜ kustutatud | 14590554 |
| DITREX HOLDING OÜ | 12520207 |
| DASTER HOLDING OÜ kustutatud | 12749743 |
| DRAVON HOLDING OÜ | 17250468 |
| DUVNÄS HOLDING OÜ kustutatud | 16456825 |
| DERSAN HOLDING OÜ | 17370356 |
| DIVINE HOLDING OÜ | 17401298 |