| Opas AS | Real estate | 2025 |
| Ophila Holding AS | | 2023 |
| Opplev Nord AS | Administrative & support | 2019 |
| Opptur AS | Arts & recreation | 2018 |
| Ops GJ BBS AS | Real estate | 2014 |
| Opsahl Drift AS | Hospitality | 2013 |
| Opscom Systems AS | Information & communication | 2003 |
| Optimist Fiske AS | Agriculture & fishing | 2023 |
| Optimus Prosjekt AS | Professional & scientific | 2012 |
| Oralkirurg Anja Nyland AS | Health & social care | 2025 |
| Oralkirurg PSJ AS | Health & social care | 2026 |
| Oralkirurg Therese Thoresen AS | Health & social care | 2026 |
| Orient Holding AS | Wholesale & retail | 1998 |
| Orient Marine AS | Professional & scientific | 2020 |
| Origo Eiendomsutvikling AS | Real estate | 2006 |
| Orion Invest AS | Financial services | 2016 |
| Orion Mat AS | Hospitality | 2013 |
| Orizon Invest AS | Financial services | 2016 |
| Orl Hørsel Og Øre-Nese-Hals AS | Health & social care | 2024 |
| Orl-Institute AS | Health & social care | 2016 |
| Oro Eiendom AS | Real estate | 2003 |
| Orthoconsult AS | Health & social care | 2008 |
| Ortopedisk Medisin Nord AS | Health & social care | 2011 |
| Oscarsborg AS | Real estate | 2019 |
| Oskars Aksjer AS | | 2006 |
| Osphaugveien 31 AS | Real estate | 2020 |
| Oss I Nord AS | Administrative & support | 2025 |
| Otello AS | | 2005 |
| Otium Capital AS | | 2026 |
| Otto Koch AS | Real estate | 2014 |
| Outlaw Detailing AS | Other services | 2019 |
| Ovesen Utleie AS | Real estate | 2010 |
| Oxy World AS | Professional & scientific | 2016 |
| Oxygenbodø AS | Wholesale & retail | 2018 |
| P & M Holding AS | Arts & recreation | 2015 |
| P Sverdrup Holding AS | Professional & scientific | 2023 |
| P. Nico Invest AS | | 2022 |
| P3D Holding AS | Information & communication | 2021 |
| Palenke AS | Hospitality | 2025 |
| Panda Sjøgata AS | Hospitality | 2024 |
| Pangaea AS | Real estate | 2011 |
| Panorama Vest AS | Real estate | 2011 |
| Papirdesign AS | Professional & scientific | 2018 |
| Papirhandelen AS | Financial services | 1940 |
| Parken Live AS | Arts & recreation | 2022 |
| Parkeringsplass F, Galnåsen SA | Real estate | 2017 |
| Parkhusene AS | Real estate | 2021 |
| Parkveien 51 AS | Real estate | 2018 |
| Partyman Bodø AS | Wholesale & retail | 2005 |
| Past Invest AS | Real estate | 2011 |
| Pat AS | | 2023 |
| Patrick B Holding AS | Real estate | 2021 |
| Paulsen Agencies Ltd Nuf | Wholesale & retail | 2025 |
| PBL Huset AS | Real estate | 2010 |
| PBL Konferansesenter AS | Hospitality | 2015 |
| PBL Mentor AS | Information & communication | 2001 |
| PBL Regnskap AS | Professional & scientific | 2005 |
| Pe 203 Holding AS | | 2023 |
| Pebech Tapas AS | Hospitality | 2026 |
| Peder & Petra Da | Construction | 2021 |
| Pedersen & Hansen Bodø AS | Construction | 2003 |
| Pedersen Auto AS | Wholesale & retail | 2021 |
| Pedersen Auto Holding AS | | 2023 |
| Pedlog El Taxi AS | Transport & logistics | 2021 |
| Peka Invest AS | | 2022 |
| Pelle Politibil AS | Administrative & support | 2024 |
| Penty Invest AS | Real estate | 2006 |
| Peon Bodø AS | Real estate | 2017 |
| People AS | Administrative & support | 2017 |
| Per Helgesens Vei 99 AS | Real estate | 2006 |
| Per Nyberg Holding AS | | 2022 |
| Permafrost AS | Real estate | 2005 |
| Pero Holding AS | Wholesale & retail | 2013 |
| Personal Team AS | Administrative & support | 2006 |
| Personal Team Bodø AS | Administrative & support | 2014 |
| Petka Invest AS | | 2016 |
| Petter Engens Vei 2 AS | Real estate | 2014 |
| PH 82 Eiendom AS | Real estate | 2021 |
| Phinoor AS | Professional & scientific | 2018 |
| PHS AS | Real estate | 2026 |
| PHW Holding AS | | 2012 |
| Pias Ballettstudio AS | Education | 2006 |
| Pinpoint Invest AS | Real estate | 2024 |
| Pitch Eiendom AS | Real estate | 2007 |
| Pitch Management AS | Information & communication | 2000 |
| Pitch Oil AS | Financial services | 2007 |
| Pizzahouse AS | Hospitality | 2018 |
| PJ Monter Og Service AS | Construction | 2025 |
| PK Nor AS | Health & social care | 2021 |
| Planla AS | Professional & scientific | 2020 |
| Plassen 2 Bodø AS | Real estate | 2010 |
| Plassmyra 58-60 AS | Real estate | 1996 |
| Plassmyra Holding AS | Financial services | 2005 |
| Plata Eiendom AS | Real estate | 2013 |
| PMG Eiendom AS | Real estate | 2006 |
| PMG Holding AS | Real estate | 2006 |
| Polam-Service | Manufacturing | 2012 |
| Polar Biomedicals AS | Wholesale & retail | 2004 |
| Polar Eiendom Bodø AS | Real estate | 2019 |
| Polar Helsetransport AS | Transport & logistics | 2023 |