| Company name | Reg. code |
|---|---|
| NBI OÜ | 16717639 |
| NBI EESTI OÜ | 14487322 |
| NBI HOLDINGS OÜ | 17422372 |
| NBI TEENUSED OÜ | 11120173 |
| MONGITAL OÜ (former name NBI OÜ) | 14392593 |
| TKB NII-NII OÜ | 14863331 |
| NBH OÜ | 16839816 |
| SBI OÜ | 10776842 |
| NBR OÜ | 17422685 |
| NUBI OÜ | 12204742 |
| GBI OÜ | 16605082 |
| NEBI OÜ | 14007419 |
| OBI OÜ | 10256781 |
| NBG OÜ kustutatud | 11761647 |
| NFI OÜ | 16803280 |
| NCI OÜ kustutatud | 12641678 |
| ABI24 OÜ | 11467994 |
| ABI360 OÜ | 16172878 |
| NBC OÜ kustutatud | 14643569 |
| ABI OÜ | 11196093 |
| LBI OÜ | 17062614 |
| NII OÜ | 11063280 |
| NBN GROUP OÜ | 17306418 |
| NUI LIFE OÜ | 17318373 |
| SAAGU NII OÜ (former name Unistuste maitse OÜ) | 12849226 |
| BNI ESTONIA OÜ | 12817522 |
| SBI FM OÜ (former name SBI Finance management OÜ) | 12002168 |
| ONBI INVEST OÜ | 11222643 |
| NBC MANAGEMENT OÜ kustutatud | 11646685 |
| NBD TECHNOLOGIES OÜ | 11069911 |
| TORU24ABI OÜ kustutatud | 14341696 |
| NBM VENTURES OÜ | 16380996 |
| VÄÄRIKATE ABI OÜ | 16394923 |
| NBT ESTONIA OÜ | 12694054 |
| TORUSTIKU ABI OÜ | 16794137 |
| VET ABI OÜ | 14747197 |
| NGI HOLDING OÜ | 17334509 |
| JV ABI OÜ | 11332834 |
| NII-ON OÜ | 14194953 |
| VILO ABI OÜ | 14041907 |
| FÜSIO NII OÜ | 17230767 |
| NCI FINANCE OÜ kustutatud | 11184813 |
| NPI IDA OÜ | 14277372 |
| RP ABI OÜ | 11979926 |
| AK ABI OÜ | 11518378 |
| NII LAMP OÜ | 16538960 |
| NBX TRADE OÜ kustutatud | 14071251 |
| NII HALL OÜ kustutatud | 14831816 |
| NBC FINANTS OÜ | 10727648 |
| RBI SOLUTIONS OÜ | 17167193 |