 | HARALD HALVORSEN AS | 977315042 | NES |
| HARALD HJELLE ARKITEKTER AS | 986552863 | OSLO |
| HARALD ØGREID | 984123167 | EIGERSUND |
| HARALDS VVS AS | 980859762 | TRONDHEIM |
| HARALD SYLTE AS | 916509405 | VESTNES |
| HARAM MASKIN AS | 928796620 | HARAM |
| HARASJØEN MEKANISKE AS | 987086599 | STANGE |
| HARDINGAR AS | 991535845 | KVAM |
| HARESTAD BYGG AS | 912125777 | RANDABERG |
| HARESTUA BYGG AS | 924351772 | LUNNER |
| HARKESTAD ENTREPRENØR AS | 992348925 | ØYGARDEN |
| HARLEM BYGG AS | 926403826 | TRONDHEIM |
| HARPEFOSS BYGG AS | 917513724 | NORD-FRON |
| HARRY MARTINSEN AS | 914190916 | OSLO |
| HARSTADBYGG ENTREPRENØR AS | 989822780 | HARSTAD |
| HARSTAD ELEKTRO AS | 950179597 | HARSTAD |
| HÅRSTAD ENTREPRENØR AS | 918401482 | MELHUS |
| HARSTAD MASKIN AS | 914329671 | HARSTAD |
| HARSTADMESTER1 AS | 922321884 | HARSTAD |
| HARSTADTEKKER1 AS | 828426362 | HARSTAD |
| HARTLEB AS | 922832331 | NESNA |
| HARTMANN ARKITEKTER AS | 987593091 | ASKER |
| HARTZ ENTREPRENØR AS | 986732241 | MODUM |
| HARVELAND ASFALTERING AS | 989301063 | KLEPP |
| HASÅS AS | 934995953 | SANDEFJORD |
| HASLESTAD MASKIN AS | 831606142 | HOLMESTRAND |
| HASSEL ANLEGG AS | 923039260 | ØVRE EIKER |
| HASSELVIKA TRANSPORT Helge Nebb Husby | 989695282 | INDRE FOSEN |
| HASSINGEN BYGG AS | 924691247 | FREDRIKSTAD |
| HÅST RØR AS | 913277244 | DRAMMEN |
| HATLEM BYGG AS | 923303081 | BERGEN |
| HATLEVIK RØR AS | 979577451 | FITJAR |
| HATTELAND ELEKTRISKE AS | 977232430 | KLEPP |
| HATTFJELLDAL MASKIN AS | 991342125 | HATTFJELLDAL |
| HATTREM MASKIN | 931309307 | ELVERUM |
| HAUGALAND BYGGEKONTROLL AS | 912342565 | VINDAFJORD |
| HAUGALAND BYGGESPESIALISTEN AS | 925503401 | TYSVÆR |
| HAUGALAND HUS AS | 920573002 | KARMØY |
| HAUGALAND MESTERBYGG AS | 926284878 | VINDAFJORD |
| HAUGALAND TAKST AS | 913625501 | HAUGESUND |
| HAUGAN BYGG & MASKIN AS | 899617282 | VEFSN |
| HAUGARNE MASKIN AS | 923106413 | VINJE |
| HAUGE ELEKTRO AS | 943914559 | OSLO |
| HAUGE MASKIN AS | 931356933 | HÆGEBOSTAD |
| HAUGEN BYGG & SERVICE AS | 999552625 | STAVANGER |
| HAUGEN ELEKTRO AS | 923393498 | MELHUS |
| HAUGENES BYGG AS | 933390063 | ARENDAL |
| HAUGEN KNUT TERJE | 970101454 | GOL |
| HAUGEN & ØIEN DA | 988307262 | MALVIK |
| HAUGEN & REITAN AS | 986230149 | MOLDE |