| Bø Sentralbygg AS | Real estate | 2011 |
| Bø Sommarland AS | Arts & recreation | 1985 |
| Bø Sportsbar AS | Hospitality | 2023 |
| Bø Tannlegesenter AS | Administrative & support | 2012 |
| Bø Taxi AS | Transport & logistics | 1997 |
| Bø Trafikkskole AS | Education | 2014 |
| Bø Varetransport AS | Transport & logistics | 1988 |
| Bø Økonomi Og Regnskap AS | Professional & scientific | 2017 |
| Bøgata 46 AS | Real estate | 2021 |
| Bøgata 69 AS | Real estate | 1998 |
| Bøgata 77 AS | Real estate | 1999 |
| Campino Pizza Og Grill AS | Hospitality | 2022 |
| Campus Familia AS | Health & social care | 2013 |
| Carwash Invest AS | Real estate | 2021 |
| Cav AS | Construction | 2020 |
| CB Caravanservice AS | Other services | 2024 |
| CBB Eiendom AS | Real estate | 2023 |
| Cctv Import AS | Wholesale & retail | 2023 |
| Centrum Elektro AS | Wholesale & retail | 1990 |
| Christian Pallesen Bygg AS | Construction | 2020 |
| CMH Eigedom AS | Real estate | 2015 |
| Cooperation AS | Professional & scientific | 2019 |
| Dattebayo AS | Hospitality | 2014 |
| Decosign AS | Professional & scientific | 1999 |
| Deler Og Utstyr AS | Wholesale & retail | 2014 |
| Den Grønne Nabo AS | Agriculture & fishing | 2021 |
| Den Lille Fabrikken AS | Manufacturing | 2025 |
| Dens Holding AS | Real estate | 2005 |
| Dhans Drilling AS | Professional & scientific | 2021 |
| Difusor AS | Professional & scientific | 2026 |
| Digicura AS | Information & communication | 2025 |
| Dobe Dagligvare AS | Wholesale & retail | 2025 |
| DOWN2OUTDOOR AS | Administrative & support | 2022 |
| E.T. Styling & Frisør Ans | Other services | 2024 |
| Eiendom I Bø AS | Real estate | 2023 |
| Eiendomsmegleren Din Telemark AS | Real estate | 2006 |
| Eigedom AS | Real estate | 2021 |
| Eikja Holding AS | Real estate | 2021 |
| Ekotuning Hallingdal AS | Other services | 2019 |
| Ekspert Gruppen AS | Construction | 2005 |
| Ekspert Senteret AS | Real estate | 1976 |
| El-Mech Solutions AS | Wholesale & retail | 2026 |
| Elektropluss Telemark AS | Construction | 2015 |
| Elt AS | Real estate | 2006 |
| Eltoma AS | Real estate | 2007 |
| Ener-Produkt AS | Construction | 1990 |
| Enerlien Eiendom AS | Real estate | 2020 |
| Era Biocarbon AS | Professional & scientific | 2022 |
| Erk Holding AS | | 2023 |
| Espedalen Maskin AS | Wholesale & retail | 2013 |
| Espen Torstveit Holding AS | | 2021 |
| Exito AS | Wholesale & retail | 2004 |
| Fagerås Eiendomsdrift AS | Real estate | 2024 |
| FAM3 SA | Real estate | 2026 |
| Fellestjenester SA | Professional & scientific | 2020 |
| Feng Eiendom AS | Real estate | 2022 |
| Feng Holding AS | Hospitality | 2022 |
| Ferdaminni AS | Professional & scientific | 2026 |
| Fitness Bø Eiendom AS | Real estate | 2016 |
| Flors Gate AS | Real estate | 2013 |
| Fløde Holding AS | | 2024 |
| Foliegutta AS | Other services | 2025 |
| Folkestad Eiendom AS | Construction | 1983 |
| Folkestad Holding AS | | 2005 |
| Folkestadvegen 21 AS | Real estate | 2022 |
| Folkestadvegen 23D AS | Real estate | 2024 |
| Folkestadvegen 23H SA | Real estate | 2026 |
| Folkestadvegen 23K SA | Real estate | 2026 |
| Folkestadvegen 23L AS | Real estate | 2024 |
| Folkestadvegen 23Q AS | Real estate | 2023 |
| Footmedica AS | Health & social care | 2025 |
| Forberg Boligutvikling AS | Real estate | 2019 |
| Forberg Eiendomsselskap AS | Real estate | 1981 |
| Forberg Holdingselskap AS | Real estate | 2021 |
| Forberg Maskin AS | Construction | 2014 |
| Fossetun AS | Real estate | 2024 |
| Fosslund AS | Real estate | 2025 |
| Fostervoll AS | Professional & scientific | 1995 |
| Foundation AS | Real estate | 2007 |
| Fraktmann Da | Transport & logistics | 1989 |
| Frontline Inspection Services Ltd Nuf | Professional & scientific | 2024 |
| Fyrverkeriekspertene AS | Wholesale & retail | 2013 |
| G-Reed AS | | 2022 |
| Gamma AS | Health & social care | 1989 |
| Geir John AS | Construction | 2022 |
| Get Your Work Done. Together AS | Information & communication | 2020 |
| GF Gruppen Invest AS | Administrative & support | 2024 |
| Gjermund Grivi AS | Wholesale & retail | 1984 |
| Glennas Produkter AS | Manufacturing | 2017 |
| Golden Productions AS | Professional & scientific | 2021 |
| Gregars Veg 90 AS | Real estate | 2018 |
| Grimby AS | | 2021 |
| Grimholt AS | Financial services | 2018 |
| Grivi AS | Wholesale & retail | 2005 |
| Grivi Eiendom AS | Real estate | 2015 |
| Grivi Gruppen AS | Real estate | 2008 |
| Grivi Invest AS | Real estate | 1996 |
| Grivi Tekstilagentur AS | Wholesale & retail | 2005 |
| Grivimoen AS | Real estate | 2013 |
| Groven Fitness AS | Arts & recreation | 2012 |