| Bodin Anlegg AS | Tvedestrand | 2018 |
| Bodin Byggservice AS | Bodø | 2020 |
| Bodin Elektriske AS | Bodø | 2025 |
| Bodin Gruppen AS | Bodø | 2018 |
| Bodin Holding AS | Bodø | 2025 |
| Bodsentralen AS | Nøtterøy | 2014 |
| Bodzio Byggetjenester AS | Fjellhamar | 2012 |
| Bodø Boligbygg AS | Bodø | 2017 |
| Bodø Boligservice AS | Bodø | 2026 |
| Bodø Bygg AS | Bodø | 2022 |
| Bodø Eiendomservice AS | Bodø | 2013 |
| Bodø Elektriske AS | Bodø | 2015 |
| Bodø Energi AS | Bodø | 2007 |
| Bodø Entreprenørservice AS | Bodø | 2025 |
| Bodø Fjellsprengning AS | Bodø | 2014 |
| Bodø Glass & Ramme AS | Bodø | 1995 |
| Bodø Mur Og Grunnservice Støckel Rognvoll Ans | Bodø | 1990 |
| Bodø Rør & Klima AS | Tverlandet | 2020 |
| Bodø Rør AS | Bodø | 2022 |
| Bodø Rør Holding AS | Bodø | 2021 |
| Bodø Service Og Vedlikehold AS | Bodø | 2017 |
| Bodø Snekkerservice AS | Bodø | 2020 |
| Bodø Varmemontasje AS | Bodø | 2021 |
| Bodø Vedlikeholdsservice AS | Valnesfjord | 2015 |
| Bodø VVS J Willumsen AS | Bodø | 1983 |
| Bodømaleren AS | Bodø | 2003 |
| Boe Bygg AS | Rådal | 2020 |
| Boffetti S.P.A. | It-24033 Calusco D'Adda (Bg) | 2014 |
| Bofint AS | Eiksmarka | 2025 |
| Boforma AS | Kleppestø | 2025 |
| Boganes Invest Holding AS | Stavanger | 2009 |
| Bogdan Maler AS | Sandnes | 2022 |
| Bogdan Nowakowski | Pl- 50 328 Wroclaw | 2006 |
| Bogdan Rørleggerservice AS | Voss | 2024 |
| Bogdans Byggeservice AS | Klokkarvik | 2016 |
| Boger Bygg AS | Rakkestad | 2019 |
| Boggi & C. S.R.L | Oslo | 2012 |
| Bogrens Glasmasteri AB | 260960 Kvidinge | 1998 |
| Bogstrand AS | Harstad | 2010 |
| Bogtre Holding AS | Våler I Østfold | 2016 |
| Boguslaw Chyla Firma Bodzio | 83 135 Mala Karczma | 2006 |
| Boguslaw Olszewski P.P.H.U Bodex | Stjørdal | 2015 |
| Boh Bygg AS | Kristiansand S | 2012 |
| Boh Drift AS | Tranby | 2020 |
| Boh Gruppen AS | Kristiansand S | 2022 |
| BOH19 AS | Kongsberg | 2019 |
| Bohemia-Hotwork S.R.O. Nuf | Cz-417 04 Hrob | 2024 |
| Bohlin Prosjekt AS | Moss | 2021 |
| Bohr Limited Nuf | St15 0Sd Stone | 2025 |
| Bohus Bergsprängning AB Nuf | Se-455 41 Hedekas | 2023 |
| Bohusgjuteriet Aktiebolag Nuf | 454 93 Brastad | 2014 |
| Boijebygg AB Nuf | Se-831 45 Östersund | 2026 |
| Boit AS | Oslo | 2014 |
| Bojo Industries AS | Snarøya | 2005 |
| Bojo Invest AS | Snarøya | 2017 |
| Bojo Shipping AS | Snarøya | 2013 |
| Bokander Invest AS | Berger | 2017 |
| Bokander Rørteknikk AS | Berger | 2016 |
| Bokk AS | Orre | 2015 |
| Boklar AS | Drammen | 2026 |
| Bokn Bygg AS | Bokn | 1989 |
| Bokrudstad Holding AS | Brumunddal | 2023 |
| Bola AS | Eidsvåg I Åsane | 2024 |
| Bola Bygg AS | Eidsvåg I Åsane | 2024 |
| Bold Tern AS | Oslo | 2018 |
| Bolek AS | Lillesand | 2014 |
| Bolfa Bygg AS | Randaberg | 2025 |
| Boli Consulting AS | Loddefjord | 2025 |
| Bolida AS | Jar | 2021 |
| Bolig & Bedrift VVS AS | Hauglandshella | 2010 |
| Bolig & Betong AS | Moss | 2025 |
| Bolig & Fasade AS | Porsgrunn | 2025 |
| Bolig & Hyttebygg AS | Bodø | 2009 |
| Bolig & Prosjektmaling AS | Våler I Østfold | 2017 |
| Bolig & Skadeservice AS | Jevnaker | 2020 |
| Bolig Bygg Ålesund AS | Vigra | 2000 |
| Bolig Bygger'N Eiendom AS | Bergen | 2005 |
| Bolig Eksperten AS | Skedsmokorset | 2022 |
| Bolig Entreprenør AS | Oslo | 2021 |
| Bolig Glass Nannestad AS | Nannestad | 2022 |
| Bolig Gruppen Bygg AS | Vikhammer | 2019 |
| Bolig Hjelperen AS | Dilling | 2014 |
| Bolig Installasjon AS | Straume | 1989 |
| Bolig Konstruksjon AS | Langevåg | 2014 |
| Bolig Og Næring AS | Oslo | 2012 |
| Bolig Og Prosjektmaling AS | Våler I Østfold | 2025 |
| Bolig Partner AS | Hamar | 1993 |
| Bolig Proff AS | Oslo | 2017 |
| Bolig Solutions AS | Asker | 2013 |
| Bolig- Og Industritrygghet AS | Fyllingsdalen | 2012 |
| Bolig-Prosjekt AS | Hafslundsøy | 2010 |
| Bolig-Service AS | Hokksund | 2012 |
| Boligbygg Follo Entreprenør AS | Ytre Enebakk | 2019 |
| Boligbygg Tromsø AS | Tromsø | 2006 |
| Boligbygg Vest AS | Eidsvåg I Åsane | 2015 |
| Boligbygger'N Heggstad AS | Ålesund | 2015 |
| BOLIGBYGGER1 AS | Stjørdal | 2015 |
| Boligdrøm AS | Gjøvik | 2024 |
| Boligelektrikeren AS | Oslo | 2011 |
| Boligen Sør AS | Søgne | 2019 |