| Company name | Reg. code |
|---|---|
| PRISMANET OÜ (former name Prisma NET OÜ) | 12648723 |
| PRISMATEL OÜ kustutatud | 12013692 |
| PRISMAONE OÜ (former name PrismaOne UÜ) | 16746204 |
| PRISMAWEB OÜ kustutatud | 11785292 |
| PRISMATEX OÜ (former name Prismatex UÜ) | 14123516 |
| PRISMABEST OÜ kustutatud (former name Prismabest UÜ) | 14123746 |
| PRIMENET OÜ | 16748516 |