| Company name | Reg. code |
|---|---|
| KTX OÜ | 10271303 |
| KTX HOLDING OÜ (former name TOBIACOS OÜ) | 16854750 |
| KNX OÜ | 16300715 |
| KTC OÜ | 16545517 |
| KTO OÜ | 11670399 |
| KTR OÜ | 16358198 |
| KIX OÜ kustutatud | 12526635 |
| KTA OÜ | 16770102 |
| KVX OÜ | 16866380 |
| KTJ OÜ kustutatud | 12309464 |
| KTÄ OÜ kustutatud | 16561580 |
| KTH OÜ | 17322506 |
| 1STX OÜ kustutatud (former name Invest Cloud OÜ) | 14648414 |
| KTL OÜ | 12607003 |
| KTN OÜ | 14560240 |
| KTV OÜ | 11893159 |
| KIX OÜ | 16608666 |
| KTI OÜ | 14942259 |
| BTX OÜ | 12700286 |
| STX INVEST OÜ | 11108539 |
| KMX INVEST OÜ | 16306190 |
| STX HOLDING OÜ | 14028924 |
| CTX INFORMATICS OÜ kustutatud | 14289889 |
| KTN CONSULT OÜ | 14839060 |
| KTC MANAGEMENT OÜ | 16804640 |
| VTX MANAGEMENT OÜ | 11404396 |
| RTX LINES OÜ | 11415371 |
| KTD EVENTS OÜ | 17005779 |
| KTR INVEST OÜ kustutatud | 16309515 |
| KTK INVEST OÜ | 16647732 |
| KTH CAPITAL OÜ | 14455323 |
| KTP INVESTMENT OÜ | 16045619 |
| KTS BALTIC OÜ | 10702683 |
| APTEEGID KTP OÜ | 14259078 |
| KTI INVESTEERINGUD OÜ | 14470695 |
| KTP CRYPTOTRADING OÜ | 16395294 |
| KTK ASSET OÜ | 17097088 |
| KTT KINNISVARA OÜ | 11249079 |
| KTK KAPITAL OÜ (former name UKA OÜ) | 12520058 |
| ATX AUTO OÜ kustutatud | 12834940 |
| 2KTL GRUPP OÜ | 16818300 |
| KNX STUUDIO OÜ | 12029486 |
| KTA FINKEY OÜ | 17352720 |
| KTH CONSULTING OÜ | 11575028 |
| KTR TRADE OÜ | 14916889 |
| STX CONSULTING OÜ | 12650306 |
| KTR CONSULTING OÜ | 16250673 |
| KTS TRANSPORT OÜ | 16913056 |
| KTT FUR OÜ | 14678378 |
| KTZ SOLUTIONS OÜ (former name Bogru OÜ) | 14721453 |