| Company name | Reg. code |
|---|---|
| AREM OÜ | 14103057 |
| AREM 14435411 OÜ (former name Märgatud24 OÜ) | 14435411 |
| AREM 14543158 OÜ (former name 14543158 OÜ) | 14543158 |
| AREM 16469928 OÜ (former name AREM Solar OÜ) | 16469928 |
| AREM 14428546 OÜ (former name 14428546 OÜ) | 14428546 |
| AREM 14700362 OÜ (former name IVMMXIX OÜ) | 14700362 |
| AREM 14597912 OÜ (former name XIMMXVIII OÜ) | 14597912 |
| AREM TÖÖD OÜ | 10618362 |
| AREM KAUBANDUS OÜ | 10644448 |
| INSEGNANTE OÜ (former name AREM 14571060 OÜ) | 14571060 |
| AREMY OÜ kustutatud | 16346657 |
| AREMA TEENUSED OÜ (former name Arema Ehitus UÜ) | 14059391 |
| AREA51 OÜ (former name Ille Äri OÜ) | 12380953 |
| AREI OÜ | 16645456 |
| AREO OÜ kustutatud | 12289329 |
| Arep OÜ kustutatud | 10241621 |
| ARES OÜ | 10883644 |
| ARER OÜ kustutatud | 12140189 |
| ARET OÜ kustutatud | 12098292 |
| AREK OÜ | 10931872 |
| AREUM OÜ | 14394994 |
| AREA KONSULTATSIOONID OÜ | 10459018 |
| AREUM EST OÜ | 14437798 |
| AREL-VIIMSI OÜ kustutatud | 11141948 |
| ARES CHAIN OÜ | 16624263 |
| ARES CREDIT OÜ | 11974774 |
| ARES INTERNATIONAL OÜ | 16418150 |
| AREN TOUR OÜ | 16999098 |
| ARES-PARGI OÜ kustutatud | 10335902 |
| AREN & POJAD OÜ kustutatud | 10478257 |
| AREX KOTKA OÜ | 16167742 |
| ARET KORISTUS OÜ | 16305351 |
| AREX CONSULTING OÜ kustutatud | 10676750 |
| ARES HOLDING OÜ | 16541991 |
| AREX GROUP OÜ kustutatud | 12925588 |
| SECURITY AREA OÜ kustutatud (former name Aivetar OÜ) | 14035551 |
| AREA STYLE OÜ kustutatud | 11895810 |
| AREC KAUBANDUS OÜ kustutatud | 10253216 |
| FEST AREA OÜ | 16724467 |
| KOHA AREA OÜ | 14052940 |
| AREK INVEST OÜ kustutatud | 12477279 |
| AREN METS OÜ (former name AREN Mets UÜ) | 14595126 |
| ARES EVENTS OÜ | 16021568 |
| ARES GRUPP OÜ | 14105346 |
| AREX LOGISTICS OÜ (former name Arex Logistic UÜ) | 14094826 |
| ARES HALDUS OÜ | 11552145 |
| AREK HALDUS OÜ | 14885491 |
| AREL WOOD OÜ | 12932312 |
| AREK GRUPP OÜ | 14413361 |
| ARES SECURITY OÜ | 12190402 |