| Ettevõtte nimi | Reg. kood |
|---|---|
| SYSO OÜ | 14270772 |
| SYSOP OÜ | 10175887 |
| SYS AGENTUUR OÜ | 14968410 |
| EU SYS OÜ kustutatud | 14520401 |
| KOVA SYS OÜ | 16443047 |
| EMBD-SYS OÜ | 17143896 |
| SYS CONSULT OÜ | 12949407 |
| SYS INVEST OÜ kustutatud | 12713811 |
| SYS PARTNERS OÜ | 12552518 |
| SYS.EXPERT OÜ kustutatud | 10821459 |
| SYS-LOGISTIC OÜ | 11900342 |
| S2SYS CONSULTING OÜ kustutatud | 16547947 |
| SYS PRINT ADVERTISING OÜ | 12157971 |
| M.R.Q. SYS. OÜ | 14345642 |
| PRODHIM OÜ | 11745690 |
| SYSONE-SYSTWO OÜ | 17348813 |
| SESO OÜ | 12161346 |
| SOSO OÜ | 14191848 |
| SASO OÜ | 16843261 |
| SYDO ESTONIA OÜ | 14100171 |
| TYSO KINNISVARA OÜ | 17166070 |
| SISO ARHITEKTID OÜ | 16484951 |
| SSO OPTICS OÜ | 17308021 |
| BIGWHALE SYO & CO OÜ | 16799258 |
| LUME VARAHALDUS OÜ | 14464588 |
| CROSSGAME OÜ | 16029744 |