 | FK BYGG AS | 990767564 | SANDEFJORD |
| FLAATA ENTREPRENØR AS | 996379469 | TINN |
| FLAA VVS AS | 987256117 | KRISTIANSAND |
| FLAGE MASKIN AS | 983389627 | VOSS |
| FLAGET AS | 994496166 | ØVRE EIKER |
| FLAGET UTLEIE AS | 912173364 | GOL |
| FLÅKLYPA MASKIN AS | 997177509 | LOM |
| FLÅM BYGGSERVICE AS | 998534143 | AURLAND |
| FLATAKER LANDSKAP | 988193607 | ÅLESUND |
| FLATAKER VVS AS | 963443811 | HUSTADVIKA |
| FLATANGER RØR AS | 926789252 | FLATANGER |
| FLATDAL HANDLAFT AS | 989232096 | SELJORD |
| FLATEBY GRAVESERVICE Roar Hansen | 886002122 | ENEBAKK |
| FLATELAND BYGG AS | 928931870 | VENNESLA |
| FLÅTEN ANLEGGSERVICE AS | 984970102 | SOGNDAL |
| FLATMO RØR AS | 928732398 | OPPDAL |
| FLATNES BYGG CONSULT AS | 977519136 | KRISTIANSAND |
| FLATNES MASKIN AS | 933663280 | ØRSTA |
| FLATSETØY MASKIN DA | 889405732 | KRISTIANSUND |
| FLEKKEFJORD BYGG AS | 914916224 | FLEKKEFJORD |
| FLEKKEFJORD RØR & VARME AS | 914598516 | FLEKKEFJORD |
| FLEKKERØY BYGG AS | 992785284 | KRISTIANSAND |
| FLEKKERØY VVS AS | 976203631 | KRISTIANSAND |
| FLEKSIHUS AS | 929268229 | GRIMSTAD |
| FLEX BYGG AS | 986096108 | BERGEN |
| FLEXIBLE BUILDING SYSTEM NORWAY AS | 922176485 | OSLO |
| FLEXIBLE BUILDING SYSTEMS INTERNATIONAL AS | 828266152 | OSLO |
| FLEXI TAK AS | 928783766 | ØRSTA |
| FLEXIT AS | 926398806 | MARKER |
| FLINK BYGG AS | 930779695 | LILLESTRØM |
| FLINKEFOLK AS | 932562596 | TIME |
| FLIPP EIENDOMSTJENESTER AS | 931508830 | STAVANGER |
| FLIS & BAD AS | 950847808 | LIER |
| FLISEKSPERTEN AS | 990754128 | MOLDE |
| FLISHUSET AS | 970938834 | TROMSØ |
| FLISLEGGER SIMONSEN AS | 922718458 | SANDNES |
| FLISLEGGER TOMAS HOLM AS | 930908487 | SKIEN |
| FLIS & MUR INVEST AS | 989205323 | BERGEN |
| FLIS OG MURERFIRMA TVERSLAND & CO AS | 916755538 | KRISTIANSAND |
| FLIS- OG MURSERVICE AS | 992436492 | LEVANGER |
| FLM ELEKTRO AS | 822902812 | BERGEN |
| FLO BRANNSIKRING AS | 979582064 | STRYN |
| FLORE ENERGIBYGG AS | 999603386 | BRØNNØY |
| FLORØ BYGG AS | 987470305 | KINN |
| FLORØ MUR OG BETONG AS | 890698832 | KINN |
| FLORVAAG HUS AS | 985215626 | BERGEN |
| FLOVILD ELEKTRO AS | 911728516 | OSLO |
| FLOW ELEKTRO AGDER AS | 927452979 | ARENDAL |
| FLOW ELEKTRO BERGEN AS | 929603672 | BERGEN |
| FLOW ELEKTRO OSLO VEST AS | 927992086 | BÆRUM |