| Company name | Reg. code |
|---|---|
| KNL OÜ | 10147342 |
| KNL SERVICE OÜ | 16097510 |
| KNX OÜ | 16300715 |
| NKL18 OÜ (former name NordKlinker OÜ) | 16214513 |
| KÜL OÜ kustutatud | 12729315 |
| BNL OÜ kustutatud | 12294171 |
| KML OÜ | 17133142 |
| KPL OÜ | 16244804 |
| KJL OÜ | 17419720 |
| KLL OÜ kustutatud | 12339123 |
| KNS OÜ | 12627661 |
| KNT OÜ | 12953343 |
| KBL OÜ | 12771263 |
| KNOL OÜ | 12419632 |
| KRL OÜ | 16128742 |
| KKL OÜ | 12842253 |
| KTL OÜ | 12607003 |
| KHL OÜ (former name Trapnet OÜ) | 12697644 |
| KNP OÜ | 14506476 |
| KAL OÜ | 14502509 |
| KRL OÜ kustutatud | 12671410 |
| 8KND OÜ kustutatud | 14656201 |
| KFL OÜ | 16184367 |
| KJL CONSULTING OÜ | 12764990 |
| KCL INVEST OÜ | 12800964 |
| KRL TRADING OÜ | 16910342 |
| LNL INTERHOLDING OÜ | 14029556 |
| KML FUND OÜ | 16337144 |
| KML DEVELOPMENT OÜ | 17182933 |
| ENL HALDUS OÜ | 14869888 |
| KHL SERVICES OÜ kustutatud | 11461187 |
| KPL INVEST OÜ | 14952520 |
| KKL GRUPP OÜ | 16241616 |
| KCL INDUSTRY OÜ kustutatud | 16254553 |
| 2KTL GRUPP OÜ | 16818300 |
| KNX STUUDIO OÜ | 12029486 |
| KNG SOFT OÜ kustutatud | 16633724 |
| KNG KINNISVARA OÜ | 16952613 |
| KML DISTRIBUTION OÜ (former name Spacedog OÜ) | 16188589 |
| KFL SERVICE OÜ | 10940017 |
| KLN INVEST OÜ | 16437986 |
| KNK KONSULTATSIOONID OÜ | 16764544 |
| DNL TRADING OÜ | 12873495 |
| KNK CONSTRUCTION OÜ | 17475894 |
| KGL CATERING OÜ | 16177290 |
| KNT MEEDIAD OÜ | 10480403 |
| KVL GROUP OÜ kustutatud | 12471489 |
| HNL FINANCE OÜ | 17383459 |
| KND INVEST OÜ | 17283634 |
| KEL INTERACTIVE OÜ | 14369393 |