| Company name | Reg. code |
|---|---|
| GOSAUNA OÜ | 16215493 |
| GOSUN OÜ kustutatud (former name GoSun UÜ) | 14208282 |
| ECOSAUNA OÜ | 14130686 |
| ROSAURA OÜ | 14114807 |
| INSAUNA OÜ | 14101288 |
| PROSAUNA OÜ kustutatud | 16619316 |
| OSANNA OÜ | 16467987 |
| ISAUNA OÜ | 12398775 |
| GOKARNA BAHERNAGAR OÜ (former name TK1 Transport OÜ) | 14898401 |
| SOOSAUNA METSAD OÜ | 16117388 |
| ECOSAUNA PROJECT OÜ | 12667407 |
| SAUNA 3-1 OÜ | 14343703 |
| SAUNA TECHNOLOGIES OÜ | 17424359 |
| SAUNA BADETONNE OÜ | 11679006 |
| SAUNA INVESTMENTS OÜ | 17194416 |
| SAUNA PESUTEENUS OÜ | 10880344 |
| SAUNA INTERNATIONAL OÜ (former name Merenlahti OÜ) | 14298090 |
| SAUNA COLLECTIVE OÜ | 17446326 |
| KIKIS SAUNA OÜ | 17456075 |
| SAUNA PUBI OÜ | 14264102 |
| BALTIC SAUNA OÜ kustutatud | 12319184 |
| KASSARI SAUNA OÜ | 16520836 |
| BALTIC SAUNA OÜ | 16026970 |
| SAUNA DEPOT OÜ | 14985867 |
| SAUNA PRODUCTION OÜ | 10860488 |
| HUUM SAUNA OÜ (former name New World Trading Partners OÜ) | 14245662 |
| SAUNA TRANS OÜ | 12216320 |
| SAUNA AUTOREMONT OÜ | 12574961 |
| WEX SAUNA OÜ | 17344867 |
| SAUNA LINE OÜ kustutatud | 10588247 |
| SAUNA MANAGER OÜ | 12611140 |
| HOSANNA GLOBAL TRADING & LOGISTICS OÜ | 16728815 |
| TINY SAUNA RENT OÜ | 16761340 |
| SAUNA PROJEKT ASIM OÜ | 10914712 |
| SAUNUM SAUNA TEAM OÜ (former name Sauna Team OÜ) | 14769342 |
| KERBEROS SAUNA ART OÜ (former name Valiton OÜ) | 14267327 |
| SAUNA JA SPA STUUDIO OÜ | 17415550 |
| PEIPSI FISHING AND SAUNA OÜ | 17252970 |
| JF RENOVATION - SAUNA FINLAND OÜ kustutatud | 12593494 |
| SPEEDYWAY OÜ (former name Gesana OÜ) | 14746039 |
| AWERO OÜ (former name Ecosauna Invest OÜ) | 16456392 |
| YRRE OÜ (former name Sauna Kuut OÜ) | 14707743 |
| WEST TECH SOLUTIONS OÜ (former name OÜ) | 17300309 |
| ENERMED WELLNESS PRODUCTION OÜ (former name OÜ Kuut Sauna) | 10136769 |
| LUNEVAL OÜ (former name MONA WOOD OÜ) | 14437384 |
| KAASOMANDIOST OÜ (former name Tinme OÜ) | 12648736 |