| Ettevõtte nimi | Reg. kood |
|---|---|
| SIQ OÜ | 14595764 |
| ARHITEKT SIQ OÜ | 14541231 |
| SIQ INTERNATIONAL GROUP OÜ kustutatud | 14641004 |
| SIQUANTEC OÜ | 10367931 |
| SIGVEL EHITUS OÜ (endine nimi Siquens Butique OÜ) | 12862959 |
| SIN SIN OÜ | 11545493 |
| SIM-SIM MASTERS OÜ kustutatud | 12120407 |
| SIA OÜ | 16902549 |
| PIQ OÜ | 17000352 |
| 365SIG OÜ | 17284220 |
| SIU OÜ | 11318254 |
| SINQ OÜ | 16708623 |
| SIV OÜ kustutatud | 10256746 |
| SIM OÜ kustutatud | 10360053 |
| SIL OÜ kustutatud | 14166632 |
| SI-SI OÜ kustutatud | 10368706 |
| STAGE SIX OÜ | 17260981 |
| SIS CAR OÜ | 12476860 |
| SIZ GROUP OÜ | 16160237 |
| SIN ASSETS OÜ | 16675332 |
| SIM & SON OÜ (endine nimi Fiver OÜ) | 12078823 |
| KIQ VENTURES OÜ | 16313244 |
| SII TLN OÜ | 17379377 |
| RIQ HOLDINGS OÜ | 16449765 |
| KIQ HOLDING OÜ | 14956251 |
| SIX APPLES OÜ | 10471692 |
| SIR AUTORENT OÜ | 10589011 |
| SIV-LUTRA OÜ | 10410911 |
| SIE & KO OÜ | 10113142 |
| STAY & SIP OÜ | 17281687 |
| SII DIGITAL OÜ | 16705139 |
| SIN STUDIO OÜ | 17472430 |
| TECH SIO OÜ | 17159779 |
| SIV SERVICES OÜ | 14489944 |
| E2SIX OÜ | 17178788 |
| SIA DESIGN OÜ | 16127062 |
| SIV KINNISVARA OÜ (endine nimi NANO Ehitus OÜ) | 12630381 |
| LASDALA-SIL OÜ | 12349771 |
| SIM-STIIL OÜ | 11336134 |
| SMQ CAPITAL OÜ | 16681723 |
| RNR SIM OÜ | 10612862 |
| SIX TELECOM OÜ | 11405125 |
| SIP WHISPERS OÜ | 17126946 |
| SAQ EHITUS OÜ | 11396596 |
| TWO SIS OÜ | 11628262 |
| SIP HAPPENS OÜ | 17260113 |
| SIR MERCURY OÜ | 14249223 |
| AUDITUS SIS OÜ | 17071760 |
| SIR MELVIN OÜ | 11944744 |
| SIX SENSES OÜ | 14003976 |