| Company name | Reg. code |
|---|---|
| TBX OÜ | 17385837 |
| TBE OÜ | 12674028 |
| RBX OÜ | 16190114 |
| TBK OÜ kustutatud | 12197692 |
| TSX OÜ | 17053064 |
| GBX OÜ kustutatud (former name Erso OÜ) | 14687762 |
| TLX OÜ | 14417761 |
| ABX OÜ | 10062456 |
| TBL OÜ (former name TBL Tartu OÜ) | 12220922 |
| TBC OÜ kustutatud | 12430527 |
| BTX OÜ | 12700286 |
| CBX OÜ | 16769369 |
| TEX CONSULTING OÜ kustutatud | 12579873 |
| IBX CAPITAL OÜ | 14519800 |
| TAX AID OÜ | 11115309 |
| NO-TAX OÜ kustutatud | 12608971 |
| TAX-TUO OÜ | 10472875 |
| IBCCS TAX OÜ | 14862455 |
| NBX TRADE OÜ kustutatud | 14071251 |
| TBG CONSULTING OÜ | 17359082 |
| TBC INTERNATIONAL OÜ (former name The Best Company OÜ) | 16811321 |
| CTDL TAX OÜ | 14523954 |
| FREELANCE.TAX OÜ kustutatud | 14568997 |
| TEX TRADE OÜ | 10049823 |
| EKO-TOX OÜ | 16335174 |
| TBW SPV OÜ kustutatud | 16037755 |
| EPM-TEX OÜ kustutatud | 10412695 |
| TBS STUUDIO OÜ kustutatud (former name The Baking Stewardess OÜ) | 16107444 |
| MBX LOGISTICS OÜ kustutatud | 12948616 |
| TBA AUTOTRANS OÜ kustutatud | 12376549 |
| TBG INVEST OÜ | 11094091 |
| TBK LAHENDUSED OÜ | 14318697 |
| ROBO-TIX OÜ | 16433572 |
| SÄÄSTU TAX OÜ | 11493922 |
| TBD PHARMATECH OÜ (former name TBD-BIODISCOVERY OÜ) | 11204964 |
| TAX EXPERT OÜ | 11762306 |
| TAX AUDIT OÜ | 11994788 |
| TAX ADVISOR OÜ | 12493278 |
| TAX REPRESENTATIVE OÜ | 11040563 |
| TSX CONSULT OÜ kustutatud | 11293672 |
| PEREKONNASTUUDIO ABX OÜ | 10282821 |
| TAX OWL OÜ | 16831281 |
| TBB FORVART OÜ | 16134033 |
| TBS ESTONIA OÜ | 11041522 |
| GROTNES TEX OÜ | 11884574 |
| TEX TECH OÜ | 14430000 |
| ABX HOLDING OÜ kustutatud (former name MarsMasters OÜ) | 16215228 |
| ZBX DIGITAL OÜ (former name Merrybit OÜ) | 14459386 |
| TIX-TRANS OÜ (former name TIX-Trans UÜ) | 14705129 |
| SPORT-TEX OÜ kustutatud | 10251513 |