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| HALTI RØR AS | 929412133 | NORDREISA |
| HALVDAN SALOMONSEN ANLEGG AS | 980195864 | ASKER |
| HALVORSEN & REINE AS | 879421322 | DRAMMEN |
| HALVORSLI FJELL OG GRUNN AS | 934355733 | PORSGRUNN |
| HALVOR SVEISTRUP AS | 993334618 | AURSKOG-HØLAND |
| HAMAR KOMMUNE | 970540008 | HAMAR |
| HAMA RØRLEGGERSERVICE AS | 922655618 | FREDRIKSTAD |
| HAMAR & VIKESÅ BYGG AS | 981915828 | LUND |
| HÅ MASKIN AS | 998214106 | MIDT-TELEMARK |
| HAMBORG'S SNEKKERI AS | 998367794 | TØNSBERG |
| HAMBRO BYGG AS | 991110860 | VESTRE SLIDRE |
| HAMCO BYGG AS | 922699739 | SENJA |
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| HAMSTAD AS | 936164226 | TRONDHEIM |
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| HANDYMAN - MARIUSZ Mariusz Andrzej Swiecki | 993833185 | MOSS |
| HANEBORG RØRLEGGERSERVICE AS | 914120810 | OSLO |