| Company name | Reg. code |
|---|---|
| RONSTAR OÜ | 14554437 |
| RONESTAR OÜ | 10907830 |
| RONSAR DISAIN OÜ | 16329920 |
| RONTAR GROUP OÜ (former name Hotaka Group OÜ) | 12858774 |
| LONSTAR OÜ kustutatud | 14001351 |
| ROKSTAR OÜ | 16929011 |
| ROOSTAR OÜ | 12467424 |
| RINSTAR OÜ | 14140064 |
| RONSTON OÜ | 14854711 |
| RONGAR OÜ | 12870054 |
| CONSTAR EESTI OÜ | 14939134 |
| MONESTAR OÜ | 17457882 |
| COINSTAR OÜ kustutatud | 11973042 |
| KROONSTAR OÜ | 11042036 |
| MONSTER24 OÜ kustutatud | 11961470 |
| CONSTAL OÜ kustutatud | 10462546 |
| RANSTAD OÜ | 17337324 |
| BONASTAR OÜ kustutatud | 11053985 |
| FINSTAR OÜ (former name Raamatupidaja Pro OÜ) | 14541685 |
| FINSTAR OÜ kustutatud | 11306759 |
| ONESTAR OÜ | 14870489 |
| REESTAR OÜ | 14546470 |
| REMSTAR OÜ | 16291672 |
| COLSTAR OÜ | 14053276 |
| DOGSTAR OÜ (former name Specroot OÜ) | 12735333 |
| BENSTAR OÜ kustutatud (former name Benstar UÜ) | 14057877 |
| MONASTAR OÜ | 12489972 |
| FOXSTAR OÜ (former name Krüpto24/7 OÜ) | 16296422 |
| FONOTAR OÜ | 16633948 |
| FOXSTAR OÜ kustutatud | 12490481 |
| COMSTAR OÜ | 10635076 |
| MORSTAR OÜ | 14066600 |
| NEONSTAR OÜ | 14304034 |
| CONSTRA OÜ (former name Heidi Granqvist Translation OÜ) | 12885162 |
| MOONSTAR OÜ | 12668453 |
| REDSTAR OÜ | 16132991 |
| LONESTAR OÜ | 17143376 |
| GENSTAR OÜ | 16622821 |
| ORUSTAR OÜ | 17387606 |
| RONMAR TEENUS OÜ kustutatud | 10389453 |
| RONMAR AUTO OÜ | 16372057 |
| MONSTER DISAIN OÜ | 14928183 |
| BOBSTAR GRUPP OÜ | 11313067 |
| MONSTER MUSIC OÜ | 12146246 |
| REASTAR GROUP OÜ kustutatud | 14110666 |
| RATIO CONSTAT OÜ | 10318921 |
| COOKY MONSTER OÜ | 14873275 |
| MONSTER MEDIA OÜ | 11246201 |
| MONSTER FOOD OÜ | 16108219 |
| CONETAR TECHNICAL OÜ | 10920210 |