| AB Fossli Invest AS | Financial services | 2005 |
| Agrocompagniet Da | Real estate | 2002 |
| Agronord Løk AS | Real estate | 2014 |
| Ahl Distribusjon AS | Transport & logistics | 2019 |
| Aik Management AS | Professional & scientific | 2024 |
| Anita Og Frode Revhaug AS | Real estate | 1999 |
| Arntsen AS | Transport & logistics | 2022 |
| Arntsen Invest AS | Transport & logistics | 2021 |
| Arntsen Ksu AS | Transport & logistics | 2013 |
| Arntzen Bakeri AS | Manufacturing | 2022 |
| Aroi Asia Stjørdal AS | Hospitality | 2023 |
| Asb Regnskap AS | Professional & scientific | 2016 |
| Asgeir Ø Holding AS | | 2021 |
| Aunet Holding AS | Financial services | 2007 |
| Austheim Invest AS | | 2023 |
| Az Gartner AS | Construction | 2008 |
| B & BM Holding AS | | 2021 |
| B2 Eiendomsutvikling AS | Real estate | 2016 |
| Bakken-Elektro AS | Construction | 2016 |
| Bankbygget Frosta AS | Real estate | 2023 |
| Bergsåsvegen 19 AS | Real estate | 2020 |
| Beta Agency AS | Professional & scientific | 2024 |
| Bilservice Frosta AS | Other services | 2014 |
| Blomsterboden Ans | Wholesale & retail | 1997 |
| Blomsterdrøm Da | Wholesale & retail | 2008 |
| Bolkan Holding AS | Financial services | 2005 |
| Boste AS | Manufacturing | 2023 |
| Brannhaugen Eiendom AS | Administrative & support | 2012 |
| Byggmester Kjetil Kvamvold AS | Construction | 2022 |
| Bæri Eiendom AS | Real estate | 2020 |
| CLN AS | Wholesale & retail | 2019 |
| Coach Vinge AS | Education | 2025 |
| Codex Norway AS | Real estate | 2013 |
| Deske AS | Construction | 2021 |
| DITT2HJEM AS | Hospitality | 2025 |
| Doneka Holding AS | | 2005 |
| DR Fjellteknikk AS | Construction | 2026 |
| Ebbo Da | Information & communication | 2024 |
| Ekspert Consulting AS | Hospitality | 2025 |
| Elton Eiendom AS | Real estate | 2021 |
| Eventyrlige Turer AS | Administrative & support | 2022 |
| FBS Eiendom AS | Construction | 2025 |
| Flet Eiendom AS | Administrative & support | 2004 |
| Foksa Agro AS | Agriculture & fishing | 2020 |
| Foodomatic AS | Professional & scientific | 2019 |
| Fossli AS | Wholesale & retail | 2024 |
| Fossli Eiendom AS | Manufacturing | 1985 |
| Framover AS | Health & social care | 2019 |
| Fri-Bo AS | Real estate | 2003 |
| Frisendal Maskin & Transport AS | Transport & logistics | 2026 |
| Frisk Salat AS | Agriculture & fishing | 2015 |
| Fritidsboliger M-N AS | | 2015 |
| Frosta Avløserlag SA | Agriculture & fishing | 1992 |
| Frosta Bil & Caravan AS | Other services | 2009 |
| Frosta Brygge AS | Real estate | 2011 |
| Frosta Brygge Drift AS | Hospitality | 2022 |
| Frosta Byggservice AS | Construction | 2006 |
| Frosta Camping AS | Hospitality | 2021 |
| Frosta Frisør Og Velvære AS | Other services | 2013 |
| Frosta Grunneierlag SA | Other services | 1970 |
| Frosta Hageby AS | Real estate | 2010 |
| Frosta Hytteservice AS | Water & waste | 2012 |
| Frosta Innkjøpslag SA | Wholesale & retail | 1978 |
| Frosta Lefsebakeri AS | Manufacturing | 1995 |
| Frosta Lyd Da | Arts & recreation | 2007 |
| Frosta Malerservice AS | Construction | 2019 |
| Frosta Maskin AS | Construction | 2024 |
| Frosta Maskinservice AS | Administrative & support | 2008 |
| Frosta Maskinutleie Da | Construction | 2007 |
| Frosta Presslag Da | Agriculture & fishing | 1996 |
| Frosta Pukk Og Graveservice AS | Construction | 2022 |
| Frosta Torv AS | Mining & quarrying | 1999 |
| Frosta Utbyggingsselskap AS | Real estate | 2002 |
| Frosta Vassverk SA | Water & waste | 1969 |
| Frosta VVS AS | Construction | 2008 |
| Frosta-Åsen Taxi AS | Transport & logistics | 2022 |
| Frostabunt'N Da | Wholesale & retail | 2020 |
| Frostabåten AS | Transport & logistics | 2022 |
| Frostachips AS | Manufacturing | 2020 |
| Frostagrønt AS | Agriculture & fishing | 2005 |
| Frostagulrot Da | Administrative & support | 2020 |
| Frostahallen SA | Real estate | 1981 |
| Frostaløk AS | Agriculture & fishing | 2014 |
| Frostaløk Eiendom AS | Agriculture & fishing | 2014 |
| Frostingen AS | Information & communication | 2000 |
| Frøken Valberg AS | Wholesale & retail | 2015 |
| Fåraaunet AS | Real estate | 2012 |
| Gildevangen Eiendom AS | Real estate | 2014 |
| Go-Fesk AS | Wholesale & retail | 2018 |
| Gradek AS | Construction | 2026 |
| Grøde Handverksbakeri AS | Manufacturing | 2026 |
| Grønn - Eiendom AS | Real estate | 2023 |
| Grønt Fra Frosta SA | Wholesale & retail | 2018 |
| Grønt Pakkeriet AS | Wholesale & retail | 2022 |
| Grøntfabrikken AS | Manufacturing | 2016 |
| Grøntkutteriet Trøndelag AS | Manufacturing | 2024 |
| Hagerup Bilskade AS | Other services | 2023 |
| Hagerup Invest AS | Real estate | 2014 |
| Hagerup Rør -Og Sveiseteknikk AS | Construction | 2013 |
| Hauganfjæra Camping AS | Hospitality | 2017 |