| Company name | Reg. code |
|---|---|
| PRESTONIAN SOLUTIONS OÜ | 16152545 |
| ESTONIAN IT SOLUTIONS OÜ kustutatud | 12197947 |
| ESTONIAN PLASTICS SOLUTIONS OÜ | 17163290 |
| ESTONIAN CONSULTING & SOLUTION OÜ | 11444237 |
| ESTONIAN SOLUTION SERVICES OÜ | 14970995 |
| ESTONIAN ROPE ACCESS SOLUTIONS OÜ (former name Estonian Rope Access Solutuions OÜ) | 14165816 |
| NORDHEALTH ESTONIA OÜ (former name Estonian Net Solutions OÜ) | 14354813 |