| Ettevõtte nimi | Reg. kood |
|---|---|
| SGC54 OÜ | 17599030 |
| SGC INNOVATIONS OÜ | 16883869 |
| SGCY OÜ | 16809548 |
| SGCTSI OÜ | 16050589 |
| SGE OÜ | 14841476 |
| SFC OÜ | 14569695 |
| SHC OÜ (endine nimi SHC UÜ) | 16190020 |
| NGC_6302 OÜ | 17503900 |
| SEC OÜ | 12700205 |
| 1SEC OÜ (endine nimi ListUP OÜ) | 14757994 |
| SGH OÜ | 14832158 |
| SMC OÜ | 11694388 |
| MGC OÜ | 17330871 |
| DGC OÜ | 16163371 |
| SGO OÜ | 12181679 |
| SGD OÜ kustutatud | 11192296 |
| SOC OÜ kustutatud | 14864773 |
| 5SEC OÜ kustutatud | 12994589 |
| SKC OÜ kustutatud | 16058533 |
| OGC PUBLICATIONS OÜ | 17114251 |
| LEKS-SEC OÜ | 11069621 |
| GSC HOLDING OÜ | 12801403 |
| SLC-CONSEIL OÜ | 16390539 |
| VISIONIST SDC OÜ (endine nimi Robin Trade & Investments OÜ) | 14666576 |
| SHC INVEST OÜ | 16280591 |
| SMC GRUPP OÜ | 12374102 |
| AI4SEC OÜ | 16087345 |
| 29SEC AGENCY OÜ | 17292366 |
| LGC INVESTMENT OÜ | 14813942 |
| MGC (EE) OÜ | 14548687 |
| SFC HOLDING OÜ (endine nimi Gasoline Company OÜ) | 12785354 |
| LEKA SMC OÜ | 12910180 |
| SMC AUTOMATION OÜ (endine nimi SMC PNEUMATICS ESTONIA OÜ) | 10745304 |
| SMC ENGINEERING OÜ (endine nimi SMC Engineering Osaühing) | 10904895 |
| SBC CLASSICS OÜ (endine nimi Doceo OÜ) | 11306179 |
| MGC QUANTUM OÜ | 14249542 |
| OPS4SEC OÜ | 16071060 |
| AICAM SEC OÜ (endine nimi Bondstone OÜ) | 11401435 |
| NGC3372 SYSTEMS OÜ | 17345217 |
| SGL GROUP OÜ | 17558752 |
| KG SEC OÜ | 14744738 |
| ESGC TRADE OÜ | 17215093 |
| SGI ESTONIA OÜ | 14717629 |
| SGB TECHNOLOGIES OÜ | 17074965 |
| SMC SERVICE OÜ | 12636329 |
| SGT DEVELOPMENT OÜ | 14766792 |
| SPC KINNISVARA OÜ (endine nimi SPC OÜ) | 12199001 |
| GRUPO IGC OÜ | 17141325 |
| SPC GROUP OÜ (endine nimi Sportshack Group OÜ) | 11534791 |
| SLC TECH OÜ | 17541763 |