| 1030 Plan Og Landskap Da | Professional & scientific | 2001 |
| 3 F Management AS | Real estate | 1982 |
| 4-EVER Bolig AS | Real estate | 2025 |
| 5M Holding AS | | 2014 |
| A&F Eiendom AS | Real estate | 2024 |
| A-Bygg Snekkerservice AS | Construction | 2017 |
| Aakerhus Haugen Holding AS | Financial services | 2018 |
| Abatico AS | Information & communication | 2012 |
| Abben Holding AS | | 2024 |
| Advokat Camilla Hagen AS | Professional & scientific | 2008 |
| Af Bil AS | Wholesale & retail | 2022 |
| AF3D AS | Professional & scientific | 2018 |
| Affa Holding AS | | 2018 |
| Agro BS Da | Agriculture & fishing | 2025 |
| Ahw Invest AS | Financial services | 2011 |
| Aik Invest AS | Financial services | 2005 |
| Aircomfort Trøndelag AS | Construction | 1982 |
| Aksnes Bil Og Maskinservice Da | Other services | 2026 |
| Aksnes Lyd Og Musikk Da | Administrative & support | 2018 |
| Akva Verdal AS | Real estate | 2013 |
| Alicelina AS | Administrative & support | 2005 |
| Altibygg Verdal AS | Construction | 2017 |
| Alu Rehab Trøndelag AS | Wholesale & retail | 1997 |
| Am Eggen Holding AS | | 2021 |
| Amparts Ans | Wholesale & retail | 1995 |
| Anderssen Psykologtjenester AS | Health & social care | 2020 |
| Andrea Eiendom AS | Real estate | 2007 |
| Anfield Eiendom AS | Real estate | 2000 |
| Ansiplus AS | Information & communication | 2025 |
| Aogl Holding AS | Financial services | 2014 |
| Aquagos AS | Professional & scientific | 2023 |
| Arcxal AS | Professional & scientific | 2018 |
| Arild Olav Sagvold Og Toril Vada Da | Agriculture & fishing | 2008 |
| Arilds Gate 1 AS | Real estate | 2025 |
| Arkitre AS | Manufacturing | 2018 |
| Arma Holding AS | Hospitality | 2014 |
| AS Elas Eiendom | Real estate | 1957 |
| Asap Trafikkskole AS | Education | 2026 |
| Asco Invest AS | Real estate | 2006 |
| Aslaksen Holding AS | Real estate | 2020 |
| Aspheim AS | Real estate | 2023 |
| Aspheim Forsamlingshus SA | Real estate | 1979 |
| Aspås Maskin AS | Construction | 2022 |
| Asylveita 4 AS | Real estate | 2025 |
| Aune Vatne AS | Manufacturing | 2023 |
| Aune Vatne Holding AS | Manufacturing | 2022 |
| Aune Ventilasjon AS | Construction | 2017 |
| Aø Eiendom Verdal AS | Real estate | 1998 |
| B2 Eiendom Mære AS | Real estate | 2015 |
| Bakarkjærringa AS | Manufacturing | 2025 |
| Bakkan Bygg AS | Construction | 2004 |
| Balanse Regnskap Og Rådgiving AS | Professional & scientific | 2021 |
| Bankplassen Verdal AS | Real estate | 2016 |
| Bare Knut AS | Administrative & support | 2017 |
| BB10 Utvikling AS | Real estate | 2016 |
| Bbqgrossisten AS | Wholesale & retail | 2025 |
| Bellini AS | Wholesale & retail | 2014 |
| Bengtsen Holding AS | Wholesale & retail | 2005 |
| Bengtsen Invest AS | Real estate | 2005 |
| Benum Juberg AS | | 2005 |
| Berg & Olsen AS | Construction | 2004 |
| Berg-Kjesbu Holding AS | Real estate | 2014 |
| Bergsmo Investment | | 2019 |
| Berit Holding AS | Other services | 2005 |
| Betty Blue Frisør AS | Other services | 2004 |
| Bg-Holding AS | | 2026 |
| Bg-Invest AS | Transport & logistics | 2024 |
| Bil Og Bobilservice AS | Other services | 2025 |
| Bjørga Utvikling AS | Financial services | 2013 |
| Bjørgan Samdrift Da | Agriculture & fishing | 2001 |
| Bjørn Egil & Mariann Overmo AS | Wholesale & retail | 2012 |
| Bjørn Winge Holding AS | Construction | 1990 |
| Bjørnar Myhre Holding AS | | 1999 |
| Bjøråa Kraft AS | Energy | 2021 |
| Bkeep AS | Wholesale & retail | 2024 |
| BKV Bolig AS | Real estate | 2016 |
| BLG Holding AS | Financial services | 2008 |
| Blikk Og Ventilasjon AS | Construction | 2000 |
| Blio AS | Real estate | 1997 |
| Blommen Grunneierlag SA | Agriculture & fishing | 1950 |
| Blomsterstua AS | Wholesale & retail | 2000 |
| Blue Star Asset Management AS | Financial services | 2013 |
| BM Prosess AS | Professional & scientific | 2023 |
| Bmelby Holding AS | | 2019 |
| Bo Form AS Møbel Og Miljø | Wholesale & retail | 1989 |
| Boffe Holding AS | | 2024 |
| Bolig Eiendom AS | Real estate | 2018 |
| Bolig Midt-Norge AS | Real estate | 2023 |
| Bonac AS | Construction | 2010 |
| Bore Eiendom AS | Real estate | 2006 |
| Boring Holding AS | | 2024 |
| Bquest AS | Wholesale & retail | 2024 |
| Bragott AS | | 2014 |
| Breding Bros Eiendom AS | Transport & logistics | 2010 |
| Breding Bros Transport AS | Transport & logistics | 2010 |
| Bredingsberg Bolig AS | Real estate | 2020 |
| Breeze Grønn Frisør AS | Other services | 2011 |
| Bremseth Sport AS | Wholesale & retail | 1989 |
| Brennevegen 3 AS | Real estate | 2019 |
| Brun-Svendsen AS | Professional & scientific | 2024 |