| Company name | Reg. code |
|---|---|
| PrismaOne kustutatud | 11884172 |
| PRISMAONE OÜ (former name PrismaOne UÜ) | 16746204 |
| PrimeOne kustutatud | 11725858 |
| PRISMANET OÜ | 12648723 |
| PRISMATON OÜ | 10889842 |
| PRISMALINE OÜ (former name Prismaline UÜ) | 14458984 |
| PRIMEONE OÜ kustutatud | 12527037 |
| PRISMOND EHITUS kustutatud | 10543262 |
| PRIMEONE HOLDING OÜ | 16009658 |