| Company name | Reg. code |
|---|---|
| SRX OÜ | 11501359 |
| SRX EHITUS OÜ | 17472200 |
| SRX BUILDING OÜ kustutatud | 11642523 |
| SRC OÜ | 16882640 |
| SRG OÜ | 12392399 |
| SRD OÜ | 10345728 |
| SOX OÜ | 17184369 |
| SRJ OÜ | 12839742 |
| SPX OÜ | 14034273 |
| SRC78 OÜ | 17250474 |
| SRZ 36 OÜ kustutatud | 11326756 |
| SRB OÜ | 14051461 |
| SRM OÜ kustutatud | 12441554 |
| 1STX OÜ kustutatud (former name Invest Cloud OÜ) | 14648414 |
| ERX OÜ | 14478739 |
| SRW OÜ | 16232681 |
| SFX OÜ | 14484941 |
| SRK OÜ | 17161871 |
| SRS OÜ | 16024528 |
| SRA OÜ (former name SR AHJUTÖÖD) | 12264997 |
| SLX OÜ | 17342526 |
| SRE OÜ (former name S&R Engineering OÜ) | 11024877 |
| MRX OÜ kustutatud | 16629378 |
| SRC GROUP OÜ (former name Growing Capital OÜ) | 14233630 |
| STAGE SIX OÜ | 17260981 |
| NRX.VENTURES OÜ | 16831565 |
| STX INVEST OÜ | 11108539 |
| ERX INVEST OÜ | 16757509 |
| SIX APPLES OÜ | 10471692 |
| STX HOLDING OÜ | 14028924 |
| SRM VENTURES OÜ | 16668622 |
| ERX ESTONIA OÜ | 17395221 |
| ERX HOLDING OÜ | 11399844 |
| CHALLENGER SRT OÜ | 17131189 |
| SRS DISAIN OÜ | 12083758 |
| SRT VISION OÜ | 17327716 |
| SRS KOMPANII OÜ kustutatud | 11534578 |
| SRI INVEST OÜ | 11049707 |
| SRK HOLDINGS OÜ | 16537825 |
| SRD AUTO OÜ | 10783931 |
| MRX AUTOD OÜ | 12991906 |
| MRX TRANS OÜ | 17373260 |
| MRX DESIGNS OÜ (former name Valgusehe OÜ) | 16287736 |
| ARX ARCENDA OÜ | 17477137 |
| PRX TEAM OÜ | 16238591 |
| SRE INVESTMENT OÜ kustutatud | 11401280 |
| STX CONSULTING OÜ | 12650306 |
| SRK TRADER OÜ | 16962451 |
| SIX TELECOM OÜ | 11405125 |
| LRX CONSULTING OÜ | 14723050 |