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| HOEL & SØNNER AS | 998942047 | OPPDAL |
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| HOGG & SLÅ AS | 985032475 | ALVDAL |
| HØGMO FJELLSPRENGING AS | 944671668 | TRONDHEIM |
| HOGNE ARVE BJØRKELUND | 974387557 | SUNNFJORD |
| HOGSTAD VVS JOHANSEN | 932914816 | BAMBLE |
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| HØILUND BYGG AS | 914881315 | HAMAR |
| HØIMYR OG BARLINDHAUG AS | 980013057 | FLESBERG |
| HØITOMT FJELLBORING AS | 922910855 | INDRE ØSTFOLD |
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| HOLBÆK RØR AS | 917732000 | VENNESLA |
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| HOLM BYGG OG MASKIN AS | 984824467 | NESBYEN |
| HOLM BYGGSERVICE AS | 923215417 | TRONDHEIM |
| HØLMEBAKK ØYMO AS | 894936932 | OSLO |
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| HOLTE BYGG AS | 990019738 | GJØVIK |
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| HOLTH BYGG & ANLEGG AS | 921533586 | FREDRIKSTAD |
| HOLTHE ANLEGG AS | 917176183 | DRAMMEN |