| Company name | Reg. code |
|---|---|
| BILLING OÜ | 16456682 |
| MD BILLING OÜ | 17003089 |
| SALES & BILLING OÜ | 17195373 |
| CRYPTO BILLING OÜ kustutatud | 16064485 |
| INVEST & BILLING OÜ | 16871949 |
| BILLING SOFTWARE SUBSCRIPTION OÜ | 14568589 |
| BILLINGER OÜ kustutatud | 16356331 |
| GM&BILDING OÜ | 11435830 |
| AVA BILDING OÜ | 16424423 |
| BILDING SVS OÜ | 11047513 |
| DH BILDING OÜ | 14983549 |
| BILLION OÜ | 16445371 |
| BILLION OÜ kustutatud | 12030740 |
| BILDUNG OÜ kustutatud | 11971209 |
| BILLIUM OÜ kustutatud | 11509735 |
| BILINGO OÜ | 12308105 |
| LT TRANSPORT O OÜ (former name OÜ Lomaka Bilding) | 16647815 |
| BILLION TECHNOLOGIES OÜ kustutatud | 14512241 |
| BILLION BABY OÜ kustutatud (former name Sarjolahti OÜ) | 12604832 |
| BILKINS-FLOWERS OÜ | 14572800 |
| BILLITY ESTONIA OÜ | 12137247 |
| STRONG BILLION EUROPE OÜ | 16115202 |
| BILDIN OÜ (former name BildIN UÜ) | 14962004 |
| BOLT OPERATIONS OÜ (former name Billify OÜ) | 14532901 |
| BILLI OÜ kustutatud | 12662775 |
| BILAIN TRANSPORT OÜ | 11696401 |
| MILLING OÜ kustutatud | 10047936 |
| WILLING OÜ | 12349038 |
| BELLING OÜ kustutatud | 11052230 |
| MANECOM OÜ (former name BILLION DOLLAR COMPANY OÜ) | 14988386 |
| GREEN KILLING OÜ | 16107065 |
| KILLING MUSIC OÜ | 16616387 |
| KILLING INVEST OÜ | 16919337 |
| DRILLING OÜ | 10102233 |
| MILLINE OÜ kustutatud | 16007702 |
| ROLLING OÜ | 12571469 |
| BELLINA OÜ | 12629855 |
| BRISLING OÜ | 17120731 |
| BUILDING OÜ kustutatud | 12138844 |
| BUILDING24 OÜ kustutatud | 12372876 |
| BULLKING OÜ (former name OÜ LB Transfer) | 12600372 |
| KALLING OÜ | 10019532 |
| BIOLINE OÜ | 12014349 |
| AISLING OÜ kustutatud | 12931442 |
| FELLING OÜ | 10803680 |
| Killingi OÜ | 196365_1 |
| CUSTOM MILLING WORKS OÜ | 17228925 |
| HAAPSALU BOWLING OÜ | 14594994 |
| ELFON BUILDING OÜ (former name Elfon Building UÜ) | 14057587 |
| VANALINNA BOWLING OÜ | 10811142 |