| Company name | Reg. code |
|---|---|
| SONNOS OÜ | 17398165 |
| SONNEST OÜ | 10899119 |
| SONNYX OÜ kustutatud | 10240395 |
| SONNEX OÜ kustutatud | 14857684 |
| SONNEN SOLUTIONS OÜ kustutatud | 16233083 |
| SONAKS EST OÜ | 11728207 |
| REINIK JA SONETS OÜ kustutatud | 12417573 |
| LOS SONDAS CUSTOMS OÜ | 17315727 |
| SORNOS OÜ kustutatud | 10284731 |
| STENOS OÜ | 10910476 |
| TONNOR OÜ | 14360438 |
| SORENOS OÜ kustutatud | 11132733 |
| RONNOR OÜ | 14326828 |
| SOPHOS OÜ kustutatud (former name BlagoDarju OÜ) | 14637634 |
| COUNOS OÜ kustutatud | 14673576 |
| CONNOR OÜ kustutatud | 16142506 |
| HINNOS OÜ (former name Hinnos UÜ) | 12790504 |
| SOMNUS OÜ | 16456890 |
| SOLDOS OÜ | 11115083 |
| SOINUS OÜ | 17193782 |
| RONROS OÜ | 17025671 |
| SOLIOS OÜ kustutatud | 12669659 |
| GUNNOS OÜ | 16001311 |
| DATA IS KEY OÜ (former name Sonny OÜ) | 14318148 |
| SCHMIDT & SONS OÜ (former name OÜ Schmidt & Sons (PANDIKONTO)) | 10964408 |
| NINGUETERRE TELBAFFI OÜ (former name SONNAX GROUP OÜ) | 16593203 |
| SONUS OÜ (former name Ala-Kurgimäe Talu OÜ) | 14095760 |
| SONNE OÜ | 12686540 |
| SONGO OÜ | 11992039 |
| SONGS OÜ | 17002552 |
| SONAS OÜ | 12245250 |
| BONNIS FINTAR OÜ | 16814064 |
| SANTOS AVIATION OÜ | 16304373 |
| SANNAS HUMLA OÜ kustutatud | 12271419 |
| COR SOUNDS OÜ | 17459932 |
| SINTOS GROUP OÜ kustutatud | 10820810 |
| CONNOR HOLDING OÜ | 14207609 |
| CONNOR INVEST OÜ kustutatud | 12625202 |
| SOCIOS ENTERTAINMENT OÜ kustutatud | 14618146 |
| HESTUR SOUNDS OÜ | 17344590 |
| CONROS INVEST OÜ | 10776532 |
| MONDOS WORK OÜ (former name Mondos Work UÜ) | 14799596 |
| SANTOS PROJECT OÜ | 11374643 |
| SANTOS CAPITAL OÜ kustutatud | 14731463 |
| SINTOS SYSTEMS OÜ | 10820589 |
| TARAPITA SOUNDS OÜ kustutatud | 12573959 |
| SUKRAM SOUNDS OÜ | 14797870 |
| METSA SOUNDS OÜ | 16278625 |
| CLASSICAL SOUNDS OÜ | 12606127 |
| SIKK SOUNDS OÜ | 17337637 |