| Butikkdrift Erik Klippenberg AS | Wholesale & retail | 2025 |
| Butikkdrift Guven AS | Wholesale & retail | 2024 |
| Butikkdrift Lindeland AS | Wholesale & retail | 2026 |
| Butikkdrift Tjensvoll AS | Wholesale & retail | 2017 |
| Butikkhandel Holmen AS | Wholesale & retail | 2007 |
| Butt Eiendom AS | Real estate | 2016 |
| Butterfly Effect AS | Education | 2023 |
| Buøy Invest AS | Real estate | 2003 |
| BVN 48 Eiendom 2 AS | Real estate | 2014 |
| BVN 48 Eiendom AS | Real estate | 2011 |
| BVS Brannvernsystemer AS | Wholesale & retail | 2002 |
| BWS Group AS | Manufacturing | 1994 |
| By Nordal & Johnsen AS | Wholesale & retail | 2024 |
| By:Rabinowitz AS | Wholesale & retail | 2021 |
| Byauk AS | Agriculture & fishing | 2021 |
| Byberg Consulting AS | Arts & recreation | 2014 |
| Byd Invest AS | | 2025 |
| Bydalsalleen 5 AS | Real estate | 2020 |
| Byeberi AS | Wholesale & retail | 2012 |
| Byens Skomaker AS | Wholesale & retail | 2022 |
| Byfiber AS | Information & communication | 2021 |
| Byfjorden Holding AS | | 2025 |
| Byfjorden Invest Da | Real estate | 2023 |
| Byfjordparken Barnehage AS | Education | 2017 |
| Byfjordparken Bolig AS | Real estate | 2026 |
| Byfjordparken Boligutvikling AS | Real estate | 2012 |
| Byfjordparken Brinken AS | Real estate | 2018 |
| Byfjordparken Energi AS | Energy | 2014 |
| Byfjordparken Næringsutvikling AS | Real estate | 2019 |
| Bygg & Kontroll AS | Professional & scientific | 2024 |
| Bygg 1 Stavanger AS | Construction | 2019 |
| Bygg Digitalt AS | Information & communication | 2020 |
| Bygg-Kon AS | Professional & scientific | 1987 |
| Bygga AS | Construction | 2013 |
| Byggbo AS | Construction | 2011 |
| Byggefirma Håland AS | Construction | 2022 |
| Byggefirma Riise AS | Professional & scientific | 2023 |
| Byggfiks AS | Administrative & support | 2026 |
| Byggfirma Anders Gilje AS | Construction | 2014 |
| Byggfirma Dani Sikveland AS | Construction | 2026 |
| Byggfirma Gysland & Iversflaten Da | Construction | 1988 |
| Byggm Landråk & Sønner | Construction | 1959 |
| Byggmario AS | Construction | 2020 |
| Byggmester Bob AS | Construction | 2019 |
| Byggmester Hagen AS | Construction | 2008 |
| Byggmester Kluge Og Frostad AS | Construction | 2018 |
| Byggmester Landråk & Sønner AS | Construction | 1978 |
| Byggmester Rygg & Myrland AS | Construction | 2013 |
| Byggmester Sør-Vest AS | Real estate | 2023 |
| Byggmester Thomas Haga AS | Construction | 2023 |
| Byggmestrenes Hus AS Stavanger | Real estate | 1976 |
| Byggopp, Opplæringskontor for Bygg- Og Anleggsteknikk Rogaland AS | Education | 1995 |
| Byggtegn AS | Construction | 2015 |
| Bygningsarbeidernes Målekontor SA | Other services | 1989 |
| Byhaugen Barnehage SA | Education | 1989 |
| Byhaugen Bygg AS | Real estate | 2019 |
| Byhaugen Invest AS | Real estate | 2025 |
| Byhaugen Legesenter AS | Health & social care | 2010 |
| Byhaven Næring 4 AS | Real estate | 2018 |
| Bykronen Bolig AS | Real estate | 2021 |
| Bykronen Dental AS | Health & social care | 2025 |
| Bykronen Næring AS | Real estate | 2021 |
| Bykronen Nærservice 2 AS | Real estate | 2021 |
| Bykronen Nærservice AS | Real estate | 2021 |
| Bymedhus Vest AS | Wholesale & retail | 2023 |
| Bynuten AS | | 2022 |
| Byr AS | Professional & scientific | 2021 |
| Byrk Capital Partners AS | | 2026 |
| Byrski Solutions AS | | 2025 |
| Byrud Holding AS | | 2026 |
| Bystrom Sports AS | Education | 2015 |
| Bysykkelen AS | Administrative & support | 2014 |
| Bytheveg AS | Professional & scientific | 2007 |
| Brødrene Svendsen A.S. | Real estate | 1971 |
| Byggmester Slyk & Espevik A/S | Construction | 1987 |
| Bå Advokatfirma AS | Professional & scientific | 2024 |
| Bådegata 1 AS | Real estate | 2002 |
| Båtsmann AS | Wholesale & retail | 2000 |
| Bærebjelken AS | Real estate | 2016 |
| Bærekomp AS | Professional & scientific | 2025 |
| Bærekraften AS | Real estate | 2015 |
| Bærekraftspartner AS | Professional & scientific | 2023 |
| Bærheim Utbyggingsselskap AS | Real estate | 2008 |
| Bøeggen Invest AS | Financial services | 2011 |
| Bøhold AS | | 2021 |
| Bøkely Invest AS | Professional & scientific | 2018 |
| Bølgekraft AS | Professional & scientific | 2017 |
| Bølgen Kiosk Ans | Wholesale & retail | 2002 |
| Børehaugen 5 AS | Real estate | 1995 |
| Børge AS | | 2003 |
| Børresen Bada Holding AS | Professional & scientific | 2021 |
| Børøy Hyttegrend 5 Avløp AS | Water & waste | 2008 |
| Børøy Vann Og Avløp AS | Water & waste | 2009 |
| Bøygen AS | Professional & scientific | 2014 |
| Bøygen Invest AS | | 2021 |
| C and J Da | Wholesale & retail | 2024 |
| C Grøsfjeld Holding AS | | 2022 |
| C Holding AS | Financial services | 2005 |
| C&M Forskaling AS | Construction | 2015 |
| C. Houge-Thiis Fysioterapi AS | Health & social care | 2007 |