| Hans Væggersvei 11-13 AS | Kirkenes | 1971 |
| Hans Væggersvei 16 AS | Kirkenes | 1996 |
| Hans Åges Elektro AS | Sortland | 2009 |
| Hans-Åke Andersson | Bergen | 2011 |
| Hansen & Dahl AS | Halden | 2001 |
| Hansen & Eknes AS | Valestrandsfossen | 1988 |
| Hansen & Larsen Tømrerfirma Ans | Mjøndalen | 1990 |
| Hansen & Skaslien Graveservice Ans | Grue Finnskog | 2009 |
| Hansen Bygg AS | Farsund | 2001 |
| Hansen Bygg Og Glasservice AS | Kolltveit | 2023 |
| Hansen Byggelag Ans | Ørskog | 1987 |
| Hansen Drift Og Vedlikehold AS | Moss | 2022 |
| Hansen Elektriske AS | Kirkenes | 2016 |
| Hansen Enterprise AS | Eidsvoll | 2014 |
| Hansen Fjellsprengning AS | Kragerø | 2022 |
| Hansen Gulv Og Malerservice AS | Tverrelvdalen | 2025 |
| Hansen Industri Elektro AS | Lonevåg | 1999 |
| Hansen Kulde AS | Molde | 2021 |
| Hansen Maskin & Transport AS | Glomfjord | 2009 |
| Hansen Maskin AS | Skien | 2023 |
| Hansen Murservice AS | Askim | 2026 |
| Hansen Og Jepsen AS | Vennesla | 2007 |
| Hansen Og Nielsen Bygningsrehabilitering Da | Oslo | 2003 |
| Hansen Og Rosaas AS | Vennesla | 2026 |
| Hansen Og Stensvand Bygg AS | His | 2014 |
| Hansen Totalbygg AS | Oslo | 2014 |
| Hansen VVS AS | Klæbu | 2017 |
| Hansen's Rørservice AS | Hamar | 2013 |
| Hansen-As | Gullaug | 1992 |
| Hansen-Elektro AS | Blomsterdalen | 2021 |
| HANSEN1 AS | Gamle Fredrikstad | 2013 |
| Hansengården AS | Årnes | 2013 |
| Hansens Anlegg AS | Stord | 2022 |
| Hansodden Holding AS | Trondheim | 2019 |
| Hansol AS | Randaberg | 2023 |
| Hanssen Byggservice AS | Tverlandet | 2023 |
| Hanssen Handverkerservice AS | Finnsnes | 2012 |
| Hanssen Maskin & Transport AS | Straumsjøen | 2010 |
| Hansson Grav Og Svets AB | 66791 Forshaga | 2014 |
| Hanssut Sveising & Rørteknikk AS | Karasjok | 2024 |
| Hanstad Bygdeservice AS | Elverum | 2015 |
| Hanstad Bygg AS | Elverum | 2024 |
| Hanstadgata 10 AS | Ringebu | 2018 |
| Hansteen Eriksen & Sønner AS | Roa | 1966 |
| Hanstveit Bygg AS | Strandvik | 2024 |
| Hanstveit Invest AS | Strandvik | 2024 |
| Hansæl Holding AS | Alvdal | 2017 |
| Haparanda Byggspecialisten AB Nuf | Se-953 95 Nikkala | 2022 |
| Happy Houses AS | Ålesund | 2023 |
| Happyhouse Holding AS | Ålesund | 2022 |
| Hara Bygg AS | Heidal | 2018 |
| Harakollen Graveservice AS | Hokksund | 2013 |
| Harald Austad AS | Algarheim | 2019 |
| Harald CHR. Tønsberg AS | Aurskog | 1988 |
| Harald Frustøl Elektro AS | Brennåsen | 1993 |
| Harald Granmo AS | Mosjøen | 2021 |
| Harald Gruppe AS | Frekhaug | 2022 |
| Harald Halvorsen AS | Skogbygda | 1997 |
| Harald Johansen Bygg AS | Hof | 2018 |
| Harald Lysaker Transport AS | Skotselv | 2021 |
| Harald Moen Bygg AS | Kolvereid | 2000 |
| Harald Nilsen Holding AS | Alta | 2015 |
| Harald Nilsen Utbygging AS | Alta | 2009 |
| Harald Norheim AS | Frekhaug | 2022 |
| Harald Skår Maskin AS | Granvin | 2023 |
| Harald Steinsland AS | Modalen | 1991 |
| Harald Stople AS | Sandeid | 2012 |
| Harald Sundsdal Invest AS | Lillesand | 2017 |
| Harald Sylte AS | Tresfjord | 1977 |
| Haralds VVS AS | Tiller | 1998 |
| Haraldseid & Husebø Invest AS | Aksdal | 2022 |
| Haraldseid Elektriske AS | Nedre Vats | 1988 |
| Haraldsen VVS Og Eiendom AS | Fjellhamar | 2008 |
| Haraldstein AS | Kopervik | 2025 |
| Haraldsvik Bygg AS | Sandefjord | 2026 |
| Haraldsvik Maskin AS | Opphaug | 2016 |
| Haraldsø AS | Stokke | 2023 |
| Haram Maskin AS | Longva | 2022 |
| Harang Bygg AS | Ålesund | 2024 |
| Harbitz Og Fossdal AS | Strusshamn | 2023 |
| Hardanger Bil Og Maskinutleige AS | Odda | 2024 |
| Hardanger Byggfornyelse AS | Skare | 2016 |
| Hardanger Byggsenter AS | Norheimsund | 1984 |
| Hardanger Cleaning Service AS | Kinsarvik | 2025 |
| Hardanger Fishfarm AS | Jondal | 2017 |
| Hardanger Fjellboring AS | Granvin | 2006 |
| Hardanger Grunn & Naturstein AS | Øystese | 2003 |
| Hardanger Malermester AS | Norheimsund | 2019 |
| Hardanger Maskinstasjon AS | Øystese | 2000 |
| Hardanger Panorama Lodge AS | Ulvik | 2017 |
| Hardanger Rørmontering AS | Voss | 1992 |
| Hardangerveien 12 AS | Nesttun | 2011 |
| Hardangervidda Hytteservice AS | Vøringsfoss | 2017 |
| Hardangerviddatunnelene AS | Eidfjord | 2012 |
| Hardingar AS | Øystese | 2007 |
| Hardrock Automation AS | Jørpeland | 2016 |
| Hardy Malerservice AS | Tana | 2014 |
| Hareid Rør & Interiør AS | Hareid | 2023 |
| Harestad Bygg AS | Randaberg | 2013 |
| Harestad Elektriske AS | Randaberg | 1996 |