| Ettevõtte nimi | Reg. kood |
|---|---|
| SYSTEMIX OÜ | 10556388 |
| HUMFLEX INTERNATIONAL OÜ kustutatud (endine nimi Systemix Data OÜ) | 12731430 |
| SYSTEMIK OÜ | 17315311 |
| SYSTEMAX TELECO OÜ | 17148882 |
| SYSTEMIC COACHING OÜ | 16809063 |
| SYSTEMIC CONSULT OÜ UÜ kustutatud (endine nimi Systemic Consult UÜ) | 12088626 |
| IVYN TECH OÜ kustutatud (endine nimi SystemIT OÜ) | 14733373 |
| SYSTEMNO OÜ | 17152843 |
| 22 SYSTEMS OÜ | 14319917 |
| SYSTEMS OÜ | 16340169 |
| 180 SYSTEM OÜ | 16950712 |
| SYSTEX OÜ | 11081852 |
| SYSTEM8 OÜ kustutatud (endine nimi Smaragdi Nordics OÜ) | 16299060 |
| SYSTEM 3000 OÜ kustutatud | 11387083 |
| 5+ SYSTEM OÜ kustutatud | 11529229 |
| TRUCK SYSTEMSS OÜ kustutatud (endine nimi Cargo Mobile OÜ) | 17141680 |
| SYSTEMBIT TEAM OÜ kustutatud | 14483278 |
| WESTLINE SYSTEMS OÜ (endine nimi Westline Systems UÜ) | 14752465 |
| VERAVENT SYSTEMS OÜ | 12932743 |
| NIAX SYSTEMS OÜ | 17434317 |
| AMIT SYSTEMS OÜ | 11080611 |
| AKTIVA SYSTEMS OÜ | 10838158 |
| OP SYSTEMS OÜ | 14657436 |
| MARK SYSTEMS OÜ | 10620241 |
| AMMER SYSTEMS OÜ | 14078046 |
| WATER SYSTEMS OÜ | 10849593 |
| DREAMLINE SYSTEMS OÜ | 12409734 |
| ECOMTHRIVE SYSTEMS OÜ | 17455035 |
| STRONGHOLD SYSTEMS OÜ | 14838221 |
| MIRAEON SYSTEMS OÜ | 17526634 |
| MOONLIGHT SYSTEMS OÜ | 14073534 |
| FLANDRIA SYSTEMS OÜ (endine nimi OÜ Oobertoon) | 12577673 |
| COMPLUS SYSTEMS OÜ | 11298712 |
| ICEGAP SYSTEMS OÜ (endine nimi IceGap Systems UÜ) | 16578221 |
| EST-SYSTEMS OÜ | 16475627 |
| CALLIDUS SYSTEMS OÜ | 14482563 |
| SNS SYSTEMS OÜ | 16321219 |
| WIGRY SYSTEMS OÜ | 12248194 |
| AETHERA SYSTEMS OÜ | 12182124 |
| ANZU SYSTEMS OÜ | 12905798 |
| X SYSTEMS OÜ | 16045467 |
| GK SYSTEMS OÜ | 16467444 |
| TECNOFOOD SYSTEMS OÜ | 11193522 |
| BONNER SYSTEMS OÜ | 10981045 |
| WORKING SYSTEMS OÜ | 14066913 |
| AKB SYSTEMS OÜ (endine nimi AKB Consulting OÜ) | 12666135 |
| KING SYSTEMS OÜ | 10673444 |
| BEST SYSTEMS OÜ | 10587064 |
| ABOBASE SYSTEMS OÜ (endine nimi Aktsiaselts Abobase Systems) | 10285877 |
| OPTIMISTIC SYSTEMS OÜ | 17383241 |