| Company name | Reg. code |
|---|---|
| ARPERO OÜ | 10464158 |
| ARPER EHITUS OÜ | 14710129 |
| ASPERO OÜ | 14874547 |
| ARMERO INVEST OÜ kustutatud | 12733104 |
| ARMERO GRUPP OÜ | 14650575 |
| APERTO OÜ | 10943790 |
| APERIO OÜ | 11706694 |
| AMRPRO OÜ | 11875977 |
| ARCERA OÜ | 10865758 |
| ANZERO OÜ (former name SANDESH OÜ) | 14884008 |
| ALTERO OÜ kustutatud | 11159620 |
| AIKERO OÜ | 11079068 |
| ALTERO OÜ (former name LoanFiner OÜ) | 14188970 |
| ARBEROS OÜ | 10305918 |
| ALPESO OÜ | 17212338 |
| APPHERO OÜ | 14847303 |
| ANBERO OÜ | 14538631 |
| ANGERO OÜ kustutatud | 11159293 |
| ARCEDO OÜ | 14508713 |
| ADAERO OÜ | 12384690 |
| ARBPRO OÜ | 16746641 |
| AFFERO OÜ | 10870015 |
| ALBERO OÜ | 12879871 |
| ARBERG OÜ | 12709212 |
| AMPEROM OÜ | 14295832 |
| ARCPRO OÜ | 14549155 |
| ANPERE OÜ | 17041411 |
| ARBEKO OÜ | 12735178 |
| ARPET OÜ | 16728910 |
| ARPEL OÜ | 10087568 |
| ARPYO OÜ | 16827256 |
| ARENOSO OÜ kustutatud (former name Arpeks Kaubandus OÜ) | 10034342 |
| ARPEKS SISUSTUS OÜ | 11515996 |
| ARPICO LINE OÜ | 12547413 |
| ARPEKS VARA OÜ (former name OÜ KALVATRA) | 10513120 |
| ARPEKS EHITUS OÜ | 10273785 |
| APPEVO STUDIOS OÜ kustutatud | 12534770 |
| ANTERO DEVELOPMENT OÜ | 11558656 |
| ANTERO EHITUS OÜ kustutatud | 10200941 |
| ACCERO BALTIC OÜ | 14350933 |
| ARBARO GRUPP OÜ | 14001368 |
| ANTERO ÄRI OÜ | 10415512 |
| ARBARO LTD. OÜ | 14098451 |
| APERIO CAPITAL OÜ | 12846570 |
| ALBERO MÖÖBEL OÜ | 16781666 |
| ALBERO VERDE OÜ | 11036343 |
| ANTERO CONSULT OÜ | 10076814 |
| ADHERO CREATIVE OÜ | 14750839 |
| ALPERA-BALT OÜ kustutatud | 12494154 |
| ALEPRO ENGINEERING OÜ (former name ALEPRO Ingineering OÜ) | 14008011 |