| Company name | Reg. code |
|---|---|
| TKN OÜ | 17062838 |
| NOMINEE TKN OÜ kustutatud | 14781834 |
| CO2TKN OÜ | 17212309 |
| TKNBX OÜ kustutatud | 14478337 |
| TKNEXT OÜ kustutatud | 14854125 |
| TKNOVAKT OÜ | 17176298 |
| TAN & TON OÜ kustutatud | 12469446 |
| TAN-TAN OÜ | 16902561 |
| TKIN OÜ | 16143204 |
| 50TON OÜ | 14808088 |
| TKS OÜ | 12088170 |
| TKK OÜ | 12975758 |
| TKE OÜ | 11390760 |
| TNN OÜ | 14204924 |
| TPN OÜ | 14513714 |
| TKM OÜ | 12565865 |
| AKN OÜ | 12146217 |
| TKH OÜ | 12291037 |
| HKN OÜ | 12111302 |
| TFN OÜ | 17049008 |
| IKN OÜ kustutatud | 16354444 |
| KTN OÜ | 14560240 |
| TKV OÜ | 11693012 |
| TKJ OÜ | 16459344 |
| TKC OÜ | 11785659 |
| TEN OÜ | 10286084 |
| TLN7 OÜ | 16894620 |
| RKN OÜ | 16216239 |
| TKR OÜ | 16459019 |
| TON24 OÜ | 16113172 |
| TEN X OÜ | 17158354 |
| SKN PROJEKT OÜ | 12498933 |
| SHUANG TAN OÜ | 16815721 |
| TKB INTERNATIONAL OÜ | 16181363 |
| TIN KOOLITUSED OÜ kustutatud | 12961325 |
| TKB CONSULTING OÜ kustutatud | 16484299 |
| TMN COACHING OÜ | 16551141 |
| KKN CAPITAL OÜ | 17158343 |
| KTN CONSULT OÜ | 14839060 |
| TKM AUTO OÜ | 11282852 |
| TKU MARKETING OÜ | 14258759 |
| TKH FOODS OÜ kustutatud | 12057815 |
| SMARTKONTEINER TLN OÜ | 16063416 |
| SKN EHITUS OÜ | 17222437 |
| TKV ESTONIA OÜ (former name SPP Estonia OÜ) | 14573998 |
| GOLDWAY TLN OÜ | 16897742 |
| RKN TRUCK OÜ | 11321003 |
| VESTER TKM OÜ | 10301872 |
| TIN BHAI OÜ | 16908894 |
| SII TLN OÜ | 17379377 |