 | FRYA STAV & LAFT AS | 814586782 | SØR-FRON |
| FRYDENLUND VVS AS | 983482007 | HOL |
| FS MASKIN AS | 987990325 | LEVANGER |
| FS MUR AS | 915622690 | KRISTIANSAND |
| FS PROSJEKT Frode Skrindsrud | 996452662 | ØYSTRE SLIDRE |
| FT BYGG AS | 990959722 | GLOPPEN |
| FT-BYGG AS | 916450044 | KRISTIANSAND |
| FT KLIMA AS | 825140832 | SANDEFJORD |
| FT MASKIN AS | 826335122 | KLEPP |
| FUGELSNES BYGG AS | 998237556 | MOLDE |
| FUGLESANGDAHL AS | 991836330 | STEINKJER |
| FUGLESTEG AS | 817464912 | LUSTER |
| FUHR BYGG AS | 998885353 | LUSTER |
| FULL-BYGGEKONTROLL AS | 828650262 | ORKLAND |
| FUNDAMENTERING AS | 979838336 | TRONDHEIM |
| FUNDAMENTERING OG GRAVING AS | 921366035 | TROMSØ |
| FURE BYGG AS | 996941353 | ÅLESUND |
| FURNES BYGG | 988113441 | VAKSDAL |
| FURUHAUG VVS AS | 927313049 | STAVANGER |
| FURUKVIST BYGG AS | 928240274 | KRISTIANSAND |
| FUSA ELEKTRO AS | 930916935 | BJØRNAFJORDEN |
| FUSER ELEKTRO AS | 925620998 | LILLESTRØM |
| FUSIONBYGG AS | 920415059 | INDRE ØSTFOLD |
| FUTHARK ARKITEKTER AS | 979979630 | OSLO |
| FUTURA ENTREPRENØR AS | 988210234 | NORDRE FOLLO |
| FVS ENTREPRENØR AS | 928858030 | ØRLAND |
| FVS ENTREPRENØR HITRA-FRØYA AS | 922606250 | ØRLAND |
| FXARK AS | 979561288 | OSLO |
| FYLKESNES NORVALD INGE | 970051317 | BØMLO |
| FYLLINGEN FLIS & MUR AS | 982523230 | BERGEN |
| FYLLINGEN MASKIN AS | 940564999 | BERGEN |
| FYLLING OG BJØRGE BYGG AS | 976034171 | ÅLESUND |
| FYR OG FLAMME AS | 927950502 | HALDEN |
| G2 ARKITEKTER AS | 914811155 | ØYGARDEN |
| GABRIEL ELEKTRO AS | 970923136 | PORSANGER |
| GADA BYGGETEKNIKK AS | 929914147 | OSLO |
| GAGAMA ELEKTRO AS | 942143710 | HAMMERFEST |
| GAIA ENERGITEKNIKK AS | 995849860 | BÆRUM |
| GAIA GEOTEKNIKK AS | 933228703 | BÆRUM |
| GAIA PROSJEKT SIV.ARK. ROLF JACOBSEN | 976207564 | FÆRDER |
| GALGUFTEN BETONGPUMPING AS | 978669921 | OVERHALLA |
| GALTA RØR AS | 992154691 | STAVANGER |
| GAMITA HOLDING AS | 931417754 | DRAMMEN |
| GAMLE 3 HUS AS | 994377205 | BERGEN |
| GAMLEBYEN ARKITEKTER AS | 927656132 | FREDRIKSTAD |
| GAMLEBYEN BLIKK AS | 960011171 | OSLO |
| GAMMELSÆTER MASKIN AS | 987168706 | HUSTADVIKA |
| GANDRUDBAKKEN MASKIN AS | 917210047 | FLÅ |
| GANGDAL RØYRSERVICE AS | 989513982 | LUSTER |
| GANITT ENTREPRENØR AS | 958672411 | KRAGERØ |