| Company name | Reg. code |
|---|---|
| QUANTO OÜ | 17276730 |
| QUANTOMO OÜ | 17064228 |
| QUARTO GROUP OÜ | 14662638 |
| QUASTO HOLDING OÜ kustutatud | 14032570 |
| QUANDO INVEST OÜ | 12188888 |
| OPTIMA QUANTA OÜ (former name Digital Relief Solutions OÜ) | 14581383 |
| QUANTA BYGG OÜ | 16884099 |
| QUARTO DIGITAL OÜ kustutatud | 14560961 |
| QUANTS FLOWERS OÜ | 17254294 |
| PRIME QUANTA OÜ | 17040972 |
| QUANT FINANCIAL OÜ kustutatud | 14518732 |
| QUANT GATEWAY OÜ | 12448243 |
| QUANT INVESTMENT OÜ | 17079023 |
| QUANT ESTONIA OÜ | 12736628 |
| QUANTA VENTURE PARTNERS OÜ kustutatud | 11253721 |
| QUANT DIGIT GROUP OÜ kustutatud | 16612509 |
| ALS QUANT INVEST OÜ | 11335548 |
| BIT CRYPTO QUANT OÜ | 16328180 |
| F2NTOM QUANT SYSTEMS OÜ | 17407740 |
| CREVENTA OÜ (former name Quant OÜ) | 14797261 |
| QUATTOR OÜ | 17314381 |
| QUANTIF OÜ | 17339375 |
| QUATTRO OÜ kustutatud | 11354818 |
| QUANTUM2 OÜ (former name ReMoneta OÜ) | 14438651 |
| QUARTZO OÜ | 17182755 |
| QUANTUM OÜ kustutatud | 12306750 |
| QUANTROL OÜ kustutatud (former name ATM Puhastus OÜ) | 11952531 |
| QUANTEK OÜ | 11760990 |
| QUARTZ EST OÜ | 14411675 |
| QUANTUM LEAP OÜ | 17099936 |
| QUANTUM NUTRITION OÜ (former name J&S OÜ) | 11514067 |
| QUANTUM SOLUTIONS OÜ kustutatud | 14030536 |
| QUANTUM CAPITAL OÜ kustutatud | 11484260 |
| QUANTUM SATIS OÜ | 17399868 |
| QUATRO RENT OÜ | 16895335 |
| QUANTUM BRANDS OÜ | 16832613 |
| QUATRO WORKS OÜ kustutatud (former name Quatro Works UÜ) | 12921538 |
| QUADRO CENTER OÜ kustutatud | 12833159 |
| QUATTRO CARE OÜ | 16872340 |
| QUANTUM EVENTS OÜ | 16745400 |
| QUANTUM FRENZY OÜ kustutatud (former name Lyra Holdings OÜ) | 16631352 |
| QUANTUM VENTURE OÜ | 16880374 |
| QUATTRO VARA OÜ kustutatud | 12348582 |
| QUANTEM ANALYTICS OÜ | 14689092 |
| QUANTUM ICE OÜ | 16750051 |
| QUANTUM ICED OÜ (former name Amazing Trading OÜ) | 12351741 |
| QUANTUM CURE OÜ | 16836746 |
| QUANTUM INVEST OÜ | 12805565 |
| QUANTUM CAPITAL OÜ | 10433148 |
| MGC QUANTUM OÜ | 14249542 |