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| HANSEN SVEIS & MONTERING AS | 978649076 | FREDRIKSTAD |
| HANS ERIK GULLORD | 920012671 | ØYSTRE SLIDRE |
| HANS HAUGERUD AS | 912487113 | OSLO |
| HANS HOLT | 969204398 | TØNSBERG |
| HANS IVAR SAMSETH | 959048118 | RAUMA |
| HANS M STORVIK BYGGMESTER | 970976663 | PORSGRUNN |
| HANS-PETTER KRANE | 974480204 | ASKER |
| HANS PETTER MELBY AS | 931731742 | STANGE |
| HANSTVEIT BYGG AS | 933450414 | BJØRNAFJORDEN |
| HA-PLAN AS | 913237293 | HARAM |
| HAPTIC ARCHITECTS AS | 995993198 | OSLO |
| HARALD B LODE SIV ARK MNAL | 982072468 | OSLO |
| HARALD BYBERG | 979566026 | SANDNES |
| HARALD CHR. TØNSBERG AS | 947560298 | AURSKOG-HØLAND |
| HARALD DYRDAL | 970239227 | SUNNFJORD |
| HARALD GRANMO AS | 926504886 | VEFSN |
| 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 |
| HAREID RØR & INTERIØR AS | 930997811 | HAREID |
| HARESTAD BYGG AS | 912125777 | RANDABERG |
| HARESTAD ELEKTRISKE AS | 975969991 | RANDABERG |
| 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 |
| HATH INVEST AS | 992755148 | FLEKKEFJORD |
| HATLEM BYGG AS | 923303081 | BERGEN |