 | KNUT IVAR MORK AS | 917084181 | MOLDE |
| KNUT KNUTSEN AS | 863786592 | BERGEN |
| KNUT KVAMMEN | 983996752 | SUNNFJORD |
| KNUT LANGAAS AS | 990027684 | HORTEN |
| KNUT LIE AS | 919396377 | OSLO |
| KNUT LUND RØRLEGGERBEDRIFT AS | 977101522 | LOM |
| KNUT MALMBERG AS | 935504317 | GJØVIK |
| KNUT MELBY AS | 989016873 | ØYSTRE SLIDRE |
| KNUT NESSET | 975989550 | BALSFJORD |
| KNUT RASMUSSEN BYGGSERVICE | 887050902 | FREDRIKSTAD |
| KNUT ROAR JENSEN | 880668382 | ORKLAND |
| KNUTSEN BYGG AS | 986432590 | LUNNER |
| KNUTSEN BYGG OG EIENDOM AS | 912477401 | STAVANGER |
| KNUTSEN ODD GUNNAR | 970436553 | TØNSBERG |
| KNUTSHAUG VVS AS | 919719478 | TRONDHEIM |
| KNUT SØBY AS | 928357023 | TØNSBERG |
| KNUT SØRHAUG MASKINSTASJON | 925954616 | AURSKOG-HØLAND |
| KNUT ULLERN AS | 918338926 | SØR-ODAL |
| KOBBER- OG BLIKKENSLAGERVERKSTED TORBJØRN LEMTUN AS | 925853909 | SARPSBORG |
| KOBE SERVICE AS | 923307346 | TRONDHEIM |
| KODA ARKITEKTER AS | 989679392 | FROGN |
| KOG ANLEGG AS | 915871399 | VÅGÅ |
| KOLÅS EFTF AS | 837576652 | HALDEN |
| KOLBJØRN NILSSKOG AS | 974443821 | VEFSN |
| KOLBJØRN OLSEN AS | 941578861 | MÅLSELV |
| KOLLEN BYGG AS | 915783694 | ÅS |
| KOLNES MASKIN AS | 981108094 | RANDABERG |
| KOLSÅS RØR AS | 895698032 | BÆRUM |
| KOLSTAD MESTERBYGG AS | 992220597 | FREDRIKSTAD |
| KOMAS AS | 974534851 | HEMNES |
| KOMBI-FRAKT AS | 977568765 | RINGERIKE |
| KOMPASS AS | 984658133 | SØMNA |
| KOMPASS BYGG AS | 921039204 | ÅSNES |
| KOMPETANSELOFTET AS | 912538958 | KRISTIANSAND |
| KOMPLETT BOLIG ROGALAND AS | 920426131 | STAVANGER |
| KOMPLETTBYGG AS | 993020605 | MERÅKER |
| KOMPLETT BYGG STRAND AS | 923262202 | STRAND |
| KOMPLETT ELEKTRO INSTALLASJON AS | 894631872 | OSLO |
| KOMPLETT MONTASJE AS | 997978234 | LARVIK |
| KOMPLETT RØR & BADSTUE AS | 932414988 | FREDRIKSTAD |
| KOMPLETT RØRSERVICE AS | 889902132 | NESODDEN |
| KOMPLETT TAK AS | 997864026 | SANDEFJORD |
| KONBYGG AS | 979389167 | GISKE |
| KONE AKSJESELSKAP | 918201548 | OSLO |
| KONGSBERG BETONGSAGING AS | 989248510 | KONGSBERG |
| KONGSBERG ENTREPRENØR AS | 987757132 | KONGSBERG |
| KONGSBERG PROSJEKTSERVICE AS | 997137744 | KONGSBERG |
| KONGSGÅRD BYGG AS | 923147195 | KRISTIANSAND |
| KONI HOLDING AS | 926644173 | KRISTIANSAND |
| KONKRET ENTREPRENØR AS | 923150994 | LYNGDAL |