| Company name | Reg. code |
|---|---|
| ASTONE OÜ | 12229676 |
| ASTONET OÜ | 10684790 |
| ASTONA HOLDING OÜ kustutatud | 11211875 |
| ASTON INTERIÖR OÜ | 14039690 |
| ASTON KAPITAL OÜ | 14176719 |
| ASTON SYNTHETICS OÜ | 14131711 |
| ASTON EHITUS OÜ | 10065526 |
| OPPORTUNITY OÜ kustutatud (former name ASTON TECHNOLOGIES OÜ) | 16044028 |
| ASTONCAP OÜ (former name ASTON TECHNOLOGIES OÜ) | 16046323 |
| ESTONE OÜ | 16608985 |
| ADSTONE OÜ | 17038716 |
| MSTONE OÜ | 14815119 |
| GSTONE OÜ | 14966373 |
| FASTONE OÜ | 12226494 |
| GASTONE OÜ | 12584331 |
| STONE OÜ | 11354971 |
| ASTOUR OÜ | 12557951 |
| ASTONIA OÜ | 12661652 |
| ASTENA OÜ kustutatud | 12145270 |
| ASTRONA OÜ | 10789112 |
| ASTARONE OÜ (former name OÜ KalaTäht) | 14973261 |
| ASTOVER OÜ | 10615524 |
| ASTOMER OÜ | 16527519 |
| ASTRONEK OÜ (former name Astronek UÜ) | 14483976 |
| CASTONE GROUP OÜ kustutatud (former name SULLEN OÜ) | 12956637 |
| ANTONE FINANCE OÜ | 16805361 |
| CASA ESTONE OÜ | 11580302 |
| ANTONE TRANSPORT OÜ kustutatud | 10372240 |
| ALEKSANDR ALSTONE OÜ | 11938382 |
| APSTONE & LOGHOUSES OÜ (former name Dimiworks OÜ) | 12837695 |
| TRANSPORT FASTONE OÜ | 12309903 |
| ASTOL OÜ | 12849663 |
| ASTOR OÜ | 14708079 |
| ASTUN OÜ | 14722441 |
| 2 STONE SOLUTIONS OÜ | 12269476 |
| STONE SOCIAL OÜ | 14940238 |
| STONE PROMOTION OÜ kustutatud | 11401877 |
| STONE CONSULTANTS OÜ | 14618133 |
| STONE CAPITAL OÜ | 12891339 |
| STONE TREE OÜ | 14427067 |
| STONE MASTERS OÜ | 16002544 |
| SPECIAL STONE OÜ | 16976660 |
| STONE ROAD OÜ | 14835339 |
| STONE & CONSTRUCTION OÜ | 16626865 |
| WRITING STONE OÜ | 17177317 |
| STONE AGE OÜ | 12108027 |
| BEST STONE OÜ kustutatud | 14858519 |
| STONE FOX OÜ | 17043692 |
| STONE IDEA OÜ kustutatud | 12331794 |
| ELEGANT STONE OÜ | 16940018 |