| Company name | Reg. code |
|---|---|
| HARDNER OÜ | 12177198 |
| HARDER OÜ (former name BrainActs Commerce OÜ) | 14344223 |
| HARDTEK OÜ | 14994808 |
| HARDMET OÜ (former name Hardmet Est OÜ) | 12945303 |
| HARTMER OÜ | 11956960 |
| HARRIER OÜ | 10814590 |
| HARINDER OÜ | 10810496 |
| HARDINGER OÜ | 10561774 |
| HARDES OÜ kustutatud | 10462658 |
| HARGER OÜ | 11794240 |
| HARRIER GRUPP OÜ kustutatud | 11907231 |
| HARDMAR TEENUSED OÜ | 12788401 |
| HARENE HALDUS OÜ | 17056720 |
| HARDEX ESTONIA OÜ | 11945761 |
| HARDEN GRUPP OÜ | 11402606 |
| HARBER IT OÜ | 16806596 |
| HARDEX EHITUSE OÜ | 17260751 |
| HARDEM SPORT OÜ | 16115969 |
| HARDEN HAY OÜ kustutatud | 10437347 |
| HARPER OÜ kustutatud | 12538779 |
| HARTER OÜ kustutatud | 16282420 |
| HARNOR OÜ | 14748848 |
| HARPER OÜ | 14868877 |
| HARNEK OÜ | 14451387 |
| HARPER TRADE OÜ kustutatud | 11147083 |
| SAGE & HARPER OÜ | 14960241 |
| HARPER GH OÜ kustutatud | 10420861 |
| HARPER FINANTS OÜ | 12903434 |
| HARPER VARA OÜ | 14269119 |
| KAUS INVEST OÜ (former name Harden Management OÜ) | 14297363 |
| MARINER OÜ | 16258522 |
| HAIDLER OÜ | 12003044 |
| GARDENER OÜ kustutatud | 11419475 |
| KARINER OÜ kustutatud | 10162554 |
| HÄNDLER OÜ | 16026800 |
| PARTNER1 OÜ | 16428881 |
| 4PARTNER OÜ | 11440311 |
| PARTNER OÜ | 14711733 |
| HANDLER OÜ | 10872830 |
| PARTNER24 OÜ (former name ARVUTITE REMONT JA HOOLDUS OÜ) | 12222651 |
| ARTNER OÜ | 14852899 |
| GARNER OÜ kustutatud | 12428068 |
| ARDNET OÜ kustutatud | 10649693 |
| HAANER OÜ | 17192073 |
| SM PARTNER OÜ | 17187712 |
| LEHMANN & PARTNER OÜ | 11280573 |
| REISEL PARTNER OÜ | 17323090 |
| DESERT PARTNER OÜ | 12588493 |
| LEADERSHIP PARTNER OÜ (former name LILKEE OÜ) | 14440524 |
| HR PARTNER OÜ | 12984680 |