| Active Education AS | Oslo | 2014 |
| Active Freedom AS | Sandnes | 2024 |
| Ad Faktotum AS | Kristiansand S | 2021 |
| Adam Kavka AS | Malvik | 2026 |
| Adam Og Eva Skolen AS | Oslo | 1985 |
| Adapt Trafikkskole AS | Asker | 2023 |
| Adaptiv Yoga Nordic AS | Fagerstrand | 2024 |
| Add on Fitness International AS | Stord | 2005 |
| Adde Coaching AS | Oslo | 2025 |
| Addisco AS | Oslo | 1999 |
| Addisco Holding AS | Oslo | 2023 |
| Adele Røssnes AS | Tjøme | 2024 |
| Adept Trafikkskole AS | Førde | 2025 |
| Aderian Invest AS | Søgne | 2022 |
| Adfahrer AB Nuf | Drammen | 2001 |
| Adferdsporet AS | Tolvsrød | 2025 |
| Adhd Ressurssenter AS | Bodø | 2024 |
| Adhd-Ressursen AS | Filtvet | 2023 |
| Adhd-Veilederen AS | Kråkerøy | 2016 |
| Admin & IT Consult AS | Drammen | 2014 |
| Adoracion AS | Oslo | 2011 |
| Adr Kompetanse AS | Lena | 2023 |
| Advantage Development AS | Oslo | 2019 |
| Advokat Dag Røed AS | Horten | 2005 |
| Aequilibrium in Crisis AS | Brevik | 2020 |
| Aerial Movements AS | Oslo | 2024 |
| Aero-Nor AS | Lesja | 2017 |
| Aesir Academy AS | Krokstadelva | 2017 |
| Aesir Investments AS | Oslo | 2020 |
| Aftensol Holding 2 AS | Laksevåg | 2023 |
| Aftensol Holding AS | Laksevåg | 2023 |
| Afø AS | Fiskå | 2020 |
| Agder Digital Ans | Nodeland | 2021 |
| Agder Førstehjelp AS | Farsund | 2021 |
| Agder Innovasjon AS | Arendal | 2015 |
| Agder Kulturakademi AS | Arendal | 2022 |
| Agder Kurs Og Kompetanse AS | Vennesla | 2025 |
| Agder Lærlingesenter AS | Kristiansand S | 2012 |
| Agder Nettskole AS | Søgne | 2020 |
| Agder Research Holding AS | Kristiansand S | 2017 |
| Agder Storbilskole AS | Arendal | 2005 |
| Agder Trafikkskole AS | Hornnes | 2012 |
| Agderfly AS | Kjevik | 1989 |
| Agency Academy AS | Bærums Verk | 2021 |
| Agenda Løft AS | Narvik | 2022 |
| Agenius AS | Søgne | 2007 |
| Agere Trafikkskole AS | Skien | 2019 |
| Aglo Barnehage Eventyrhuset AS | Skatval | 2022 |
| Ah Prosjektledelse AS | Oslo | 2015 |
| Aha Flow AS | Sandefjord | 2025 |
| Aha Lumina AS | Sandefjord | 2025 |
| Ahe Helse AS | Nesttun | 2012 |
| Ahead Norge AS | Flekkefjord | 2003 |
| Ahs Kurs AS | Ranheim | 2013 |
| Aina Reiss-Jacobsen AS | Surnadal | 2024 |
| Aion Coaching & Consulting AS | Førresfjorden | 2026 |
| Airex Aviation AS | Brumunddal | 2014 |
| Airsea AS | Søgne | 2021 |
| Aita Kurs AS | Oslo | 2018 |
| Ajer Gårds Og Familiebarnehage AS | Hamar | 2026 |
| Ajer Kontorsenter AS | Brumunddal | 1992 |
| Ak Båt Og Bil AS | Vikersund | 1999 |
| Ak Coaching AS | Nittedal | 2024 |
| Ak Holding AS | Billingstad | 2016 |
| Ak-Trafikkskole AS | Ås | 2018 |
| Akademi Medbroen AS | Stjørdal | 2020 |
| Akademiet Drammen AS | Drammen | 2002 |
| Akademiet Fagskole AS | Ålesund | 2022 |
| Akademiet Folkehøgskole Numedal AS | Drammen | 2026 |
| Akademiet for Klassisk Kunst AS | Heggedal | 2026 |
| Akademiet Fredrikstad AS | Kråkerøy | 2005 |
| Akademiet Grunnskole Hokksund AS | Drammen | 2024 |
| Akademiet Halden AS | Ålesund | 2024 |
| Akademiet International School Drammen AS | Drammen | 2009 |
| Akademiet International School Oslo AS | Ålesund | 2025 |
| Akademiet Kristiansand AS | Kristiansand S | 1998 |
| Akademiet Norge AS | Ålesund | 2010 |
| Akademiet Oslo AS | Oslo | 2004 |
| Akademiet Privatist Og Nettstudier AS | Drammen | 2011 |
| Akademiet Privatistskole Drammen AS | Drammen | 2008 |
| Akademiet Privatskole Sandnes AS | Ålesund | 2025 |
| Akademiet Privatskole Østfold AS | Ålesund | 2024 |
| Akademiet Realfagsskole Drammen AS | Drammen | 2013 |
| Akademiet Realfagsskole Oslo AS | Oslo | 2013 |
| Akademiet Realfagsungdomsskole Ålesund AS | Ålesund | 2017 |
| Akademiet Sandnes AS | Sandnes | 2004 |
| Akademiet Toppidrett Drammen AS | Drammen | 2024 |
| Akademiet Toppidrett Oslo AS | Ålesund | 2025 |
| Akademiet Toppidrettsgymnas Ålesund AS | Ålesund | 2013 |
| Akademiet Ungdomsskole Asker AS | Asker | 2021 |
| Akademiet Ungdomsskole Drammen AS | Drammen | 2014 |
| Akademiet Ungdomsskole Kongsberg AS | Drammen | 2026 |
| Akademiet Ungdomsskole Lier AS | Lier | 2018 |
| Akademiet Utdanning Norge AS | Drammen | 1999 |
| Akademiet VGS Bergen AS | Bergen | 2004 |
| Akademiet VGS Bislett AS | Oslo | 2005 |
| Akademiet VGS Bragernes Drammen AS | Drammen | 2011 |
| Akademiet VGS Christiania AS | Ålesund | 2024 |
| Akademiet VGS Hønefoss AS | Drammen | 2024 |
| Akademiet VGS Kongsberg AS | Kongsberg | 2019 |