| Advokatfirmaet Tønset AS | Lillestrøm | 2011 |
| Advokatfirmaet Tørresby Og Seegaard Dahlberg Ans | Sandvika | 1996 |
| Advokatfirmaet Unneland AS | Trollåsen | 2012 |
| Advokatfirmaet Vaghefi AS | Drammen | 2017 |
| Advokatfirmaet Vang AS | Oslo | 2026 |
| Advokatfirmaet Varder AS | Moss | 2009 |
| Advokatfirmaet Vegard Lien AS | Askim | 2014 |
| Advokatfirmaet Velund & Co Da | Oppdal | 2006 |
| Advokatfirmaet Verito AS | Oslo | 2023 |
| Advokatfirmaet Verna Rege Nilssen AS | Stavanger | 2022 |
| Advokatfirmaet Vialto Partners AS | Oslo | 2022 |
| Advokatfirmaet Vikse AS | Tønsberg | 2016 |
| Advokatfirmaet Vinje AS | Oslo | 2008 |
| Advokatfirmaet Viten AS | Oslo | 2023 |
| Advokatfirmaet Wangberg AS | Oslo | 2006 |
| Advokatfirmaet Weiss-Andersen AS | Billingstad | 2018 |
| Advokatfirmaet Wenger AS | Oslo | 2020 |
| Advokatfirmaet Wergeland AS | Trondheim | 2021 |
| Advokatfirmaet Wexels AS | Skien | 2026 |
| Advokatfirmaet Wexels Da | Skien | 2007 |
| Advokatfirmaet Wiersholm AS | Oslo | 1999 |
| Advokatfirmaet Wiik AS | Larvik | 2025 |
| Advokatfirmaet Wold & Co Da | Molde | 2024 |
| Advokatfirmaet Wold AS | Sortland | 2002 |
| Advokatfirmaet Wulff AS | Mosjøen | 2012 |
| Advokatfirmaet Yrjar AS | Brekstad | 2020 |
| Advokatfirmaet Ytterbøl & Co AS | Sarpsborg | 1996 |
| Advokatfirmaet Åke Sjøberg AS | Kristiansund N | 1999 |
| Advokatfirmaet Øivind Østberg AS | Oslo | 2017 |
| Advokatfirmaet Økland & Co AS | Lillestrøm | 2024 |
| Advokatfirmaet Øraker AS | Stokmarknes | 2004 |
| Advokatfirmaet Østberg AS | Oslo | 1996 |
| Advokatfirmaet Østgård AS | Tromsø | 2026 |
| Advokatfirmaet Østgård Da | Tromsø | 2006 |
| Advokatfirmaet Øverbø Gjørtz AS | Molde | 2015 |
| Advokatfirmaet Øyvind Berre AS | Oslo | 2016 |
| Advokatforum Oslo AS | Oslo | 2019 |
| Advokatgården Munkegaten Da | Trondheim | 2004 |
| Advokathuset Breivik AS | Kløfta | 2008 |
| Advokathuset Harstad AS | Harstad | 2013 |
| Advokathuset Helgeland AS | Mo I Rana | 2025 |
| Advokathuset Horten AS | Horten | 2008 |
| Advokathuset Justisia AS | Grålum | 2019 |
| Advokathuset Lakselv AS | Lakselv | 2020 |
| Advokathuset Nord AS | Finnsnes | 2013 |
| Advokathuset Røros AS | Røros | 2022 |
| Advokathuset Sandefjord Ans | Sandefjord | 2011 |
| Advokathuset Sarpsborg Da | Sarpsborg | 2004 |
| Advokathuset Trondheim Da | Trondheim | 2002 |
| Advokathuset Veland Og Thingvold AS | Stavanger | 2016 |
| Advokathuset Vest AS | Bergen | 2018 |
| Advokatkollegiet Kindem & Co AS | Oslo | 1993 |
| Advokatkollegium AS | Ski | 2012 |
| Advokatkontoret 101 AS | Leknes | 2016 |
| Advokatkontoret Fløien AS | Bergen | 2017 |
| Advokatkontoret Myhr & Co AS | Melhus | 2017 |
| Advokatkontoret Nordenfjeldske AS | Trondheim | 2018 |
| Advokatkontoret Sunnhordland AS | Stord | 2017 |
| Advokatmekler Anett Ravndal AS | Stavanger | 2022 |
| Advokatnett SA | Trondheim | 2006 |
| Advokatnøkkelen AS | Oslo | 2026 |
| Advokatoriet AS | Drammen | 2011 |
| Advokatoslo.No AS | Oslo | 2017 |
| Advokatselskapet Angell AS | Tromsø | 2015 |
| Advokatselskapet Hoaas AS | Alta | 2020 |
| Advokatselskapet Justitia AS | Tromsø | 1997 |
| Advokatsenteret AS | Asker | 2013 |
| Advokatveiledning AS | Oslo | 2015 |
| Advokatvern AS | Vinterbro | 2026 |
| Advor AS | Klepp Stasjon | 2025 |
| Advoshop Da | Oslo | 1998 |
| Advsan Holding AS | Lørenskog | 2016 |
| Adways AS | Honningsvåg | 2024 |
| Adwizo AS | Nesøya | 2012 |
| Ae Consult AS | Asker | 2018 |
| Aea Eiendom AS | Stavanger | 2020 |
| Aea Investors AS | His | 2005 |
| Aeb Holding & Co AS | Bekkestua | 2015 |
| Aec Prefab AS | Sola | 2021 |
| Aecom Nordic AB Nuf | Oslo | 2007 |
| Aecom Norway Technology Services AS | Oslo | 2026 |
| Aedes AS | Oslo | 2000 |
| Aedifi AS | Drøbak | 2022 |
| Aedifi Rådgivning AS | Oslo | 2024 |
| Aedilis Nuf | Tønsberg | 2015 |
| Aeg Presents Norway AS | Oslo | 2025 |
| Aega AS | Oslo | 2019 |
| Aega Capital AS | Oslo | 2015 |
| Aega Management AS | Oslo | 2018 |
| Aega Solar AS | Oslo | 2023 |
| Aeger Group AS | Oslo | 2012 |
| Aegilon AS | Finnsnes | 2005 |
| Aegir AS | Jar | 2015 |
| Aegir Holding AS | Høvik | 2005 |
| Aegir Sailing AS | Bodø | 2024 |
| Aegir Seapower AS | Oslo | 2023 |
| Aegira AS | Oslo | 2026 |
| Aegirshold AS | Oslo | 2025 |
| Aejo AS | Porsgrunn | 2026 |
| Aeka Management AS | Kristiansand S | 2021 |