| Company name | Reg. code |
|---|---|
| HAMMER OÜ | 10296243 |
| HAMMER PRO OÜ kustutatud | 12183684 |
| HAMMER BROS OÜ | 14603104 |
| HAMMER & NAIL OÜ | 12358190 |
| HAMMER MUSIC OÜ | 14700379 |
| HAMMER GROUP OÜ | 10251594 |
| GENTLE HAMMER OÜ | 17440677 |
| KATRIN HAMMER OÜ | 11893254 |
| HAMMER TEHNIK OÜ kustutatud | 12202878 |
| HAMMER HOLDING OÜ | 14664904 |
| HAMMER&RAVENS OÜ | 12943706 |
| HAMMER SERVICE OÜ | 10723870 |
| GRAVITY HAMMER OÜ kustutatud | 16571874 |
| HAMMERS OF PARADIGM OÜ kustutatud | 12486522 |
| HAMMES TRADING OÜ | 12225495 |
| HAMMEL VEOD OÜ | 11389082 |
| HAMER CREATIVE PRODUCTIONS OÜ | 12650192 |
| HAMMERLIN OÜ kustutatud | 10785723 |
| HAMMERMAN OÜ kustutatud | 10190616 |
| HAMMERSON OÜ | 17093187 |
| HAMMERMET OÜ | 17011278 |
| HAMMERSET OÜ kustutatud | 12732843 |
| HAMMERBUSS OÜ kustutatud | 11919019 |
| HAMMERTIME OÜ | 12031425 |
| HAMMERCODE OÜ | 16281395 |
| HAMMERHEAD OÜ (former name Hammerhead Invest OÜ) | 14909582 |
| HAMMERFEST OÜ | 11140615 |
| HAMMERJACK OÜ | 10568247 |
| HAMMERDELL OÜ | 10544853 |
| HAMMERTRADE OÜ | 16677489 |
| HAMMERSTOCK OÜ kustutatud (former name Järveotsa Laod OÜ) | 12837424 |
| ADVOKAADIBÜROO TAMMER & TAMMER OÜ | 10853152 |
| HAMMERSTRAND OÜ kustutatud | 12282015 |
| K3 HAMMERHEAD OÜ | 14773616 |
| HANMER OÜ | 14332355 |
| TAMMER OÜ (former name OÜ T-TAMMER) | 10394201 |
| HUMMER OÜ | 17448395 |
| KAMMER OÜ kustutatud | 12484517 |
| GAMMER OÜ | 14462862 |
| LAMMER OÜ kustutatud | 14546375 |
| HAMMERHEAD GROUP OÜ kustutatud (former name Hammerhead Grupp OÜ) | 12456751 |
| LUCKY HAMMERHEAD OÜ | 16383368 |
| HAMMERLAU FRAKT AB OÜ | 14797321 |
| HAMMERFIST STUDIO OÜ | 12994856 |
| EVENTUS HAMMERHEAD OÜ | 12674815 |
| 24/7 OFFICE OÜ kustutatud (former name HammerHub OÜ) | 12807363 |
| SCANDIUM M4A OÜ (former name Scandium Hammerhead OÜ) | 14925977 |
| RESTATE PROPERTY DEVELOPERS OÜ (former name Hammerhead OÜ) | 11592452 |
| RESTATE OÜ (former name HHH Hammerhead Holding OÜ) | 14868794 |
| HAMAAR OÜ | 12133775 |