 | KVASS ARKITEKTUR AS | 929445368 | OSLO |
| Kvassheim Elektro AS | 932146568 | BERGEN |
| KVATRO AS | 992058234 | SURNADAL |
| KV BYGG AS | 922699658 | DRANGEDAL |
| KV BYGG SULDAL AS | 986543872 | SULDAL |
| KVEHAUGEN BYGG AS | 976065379 | EIDSVOLL |
| KVEKROKEN ENTREPRENØR AS | 987687614 | LESJA |
| KVELDE RØRSERVICE AS | 981567854 | LARVIK |
| KVERNAAS ARKITEKTER AS | 971156139 | NORDRE FOLLO |
| KVERNELAND MUR & FLIS AS | 920313043 | TIME |
| KVERNMO AS | 983049052 | VERDAL |
| KVERSØY MASKIN AS | 911781298 | GULEN |
| KVIKK INSTALLASJON AS | 986581626 | OSLO |
| KVIKNEHYTTA AS | 971169737 | TYNSET |
| KVINA MASKIN AS | 827439762 | KVINESDAL |
| KVINESDAL MESTERBYGG AS | 993132055 | KVINESDAL |
| KVINNHERAD BYGG AS | 985828393 | KVINNHERAD |
| KVINNHERAD ELEKTRO A/S | 947070622 | KVINNHERAD |
| KVISTÅS ENTREPRENØR AS | 934651049 | NORDRE FOLLO |
| KVISTE MASKIN AS | 992936916 | ALVER |
| KVITÅVATN TOMTESERVICE AS | 917314454 | TINN |
| KVITVANG FJELLSPRENGNING AS | 912208451 | LEVANGER |
| K V KONSTRUKSJON AS | 817587712 | OSLO |
| K. VOLDEN AS | 931848674 | FITJAR |
| KVT SOLUTIONS AS | 932081865 | RANDABERG |
| KW-BYGG HORNNES AS | 984620586 | EVJE OG HORNNES |
| KYDLAND MASKIN AS | 923384448 | KLEPP |
| KYLLO MASKIN AS | 934051254 | SELBU |
| KYMAR SECTECH AS | 918537724 | TRONDHEIM |
| KYSTBYGG AS | 982726980 | EIGERSUND |
| KYST ELEKTRO AS | 820933362 | FRØYA |
| KYSTEN UTVIKLING AS | 917392463 | KRISTIANSAND |
| KYST OG SJØSERVICE AS | 992293934 | FÆRDER |
| KYSTPLAN AS | 990958246 | HITRA |
| KZ BYGG AS | 913754050 | LØRENSKOG |
| L2 ARKITEKTER AS | 943273553 | OSLO |
| LAA MASKIN AS | 923417303 | ÅL |
| LAB 4 PROSJEKTERING AS | 960990072 | TRYSIL |
| LAB ENTREPRENØR AS | 995802392 | BERGEN |
| LA-BIM AS | 913464613 | SOGNDAL |
| LAFTEKOMPANIET AS | 982212308 | ØSTRE TOTEN |
| LAG BYGGTJENESTER AS | 832741752 | VERDAL |
| LAG ENTREPRENØR AS | 986798676 | VERDAL |
| LAHAUG AS | 918831398 | LILLESTRØM |
| LAJE AS | 920465536 | HAMAR |
| L A KASIN MASKINENTREPENØR | 984588356 | NOTODDEN |
| LAKSEVÅG ELEKTRO AS | 933713601 | BERGEN |
| LAKSEVÅG RØR & SANITÆR AS | 934268598 | BERGEN |
| LALA TØYEN AS | 894984872 | OSLO |
| LAMBACH MASKIN AS | 920915426 | BERGEN |