| Plaipetch Ørenesehals-Klinikk AS | Sandnes | 2019 |
| PLAN9 Capital AS | Fredrikstad | 2021 |
| Planb AS | Oslo | 2019 |
| Plankebyen Legesenter AS | Kråkerøy | 2007 |
| Planoma Holding AS | Ålesund | 2001 |
| Plaque AS | Melhus | 2005 |
| Plaque Removal Systems AS | Gjøvik | 2021 |
| Plastikk AS | Trondheim | 2021 |
| Plastikkguttene AS | Oslo | 2018 |
| PLASTIKKIRURG1 AS | Sandsli | 2017 |
| Plastikkirurgi No AS | Oslo | 2000 |
| Plastikkirurgisk Institutt AS | Nesttun | 2006 |
| Plaum AS | Drøbak | 2026 |
| Plei Meg Sola Klinikk AS | Sola | 2015 |
| Plexus Helse AS | Ålesund | 2013 |
| Plus Manuellterapi & Trening AS | Lørenskog | 2003 |
| Pluss Inkludering AS | Gressvik | 2018 |
| Pmbm AS | Leinstrand | 2019 |
| PMG AS | Sola | 2012 |
| PMP Eyecare Holding AS | Stavanger | 2024 |
| Pneumologisk Service Sabine Sandweg AS | Kråkerøy | 2025 |
| Podlen Verkstad AS | Stord | 1990 |
| Point Invest AS | Oslo | 2010 |
| Point-Of-Care AS | Skien | 2023 |
| Polar Psykologtjenester AS | Tromsø | 2024 |
| Polaris Legevikar AS | Øvre Årdal | 2026 |
| Polartind AS | Lyngdal | 2021 |
| Polder Holding AS | Bergen | 2012 |
| Pollen Fysioterapi Da | Arendal | 2020 |
| Pollux Helse AS | Skarnes | 2005 |
| Polybos AS | Tønsberg | 2010 |
| Polydent AS | Oslo | 2022 |
| Polyinvest AS | Oslo | 2021 |
| Pon Helse Og Velvære AS | Tananger | 2015 |
| Pons Helse AS | Slemmestad | 2021 |
| Pont Enterprise Norge AS | Lillesand | 2015 |
| Porsanger Arbeidssamvirke AS | Lakselv | 1992 |
| Porsgrunn Kiropraktorklinikk AS | Porsgrunn | 2006 |
| Porsgrunn Legesenter AS | Porsgrunn | 2013 |
| Porsgrunn Lungeklinikk AS | Porsgrunn | 2018 |
| Porsgrunn Plastikkirurgi AS | Porsgrunn | 2013 |
| Porsgrunn Øyeklinikk AS | Porsgrunn | 2018 |
| Porsgrunnsgynekologene AS | Porsgrunn | 2020 |
| Portalen Legesenter Da | Brumunddal | 2008 |
| Portus AS | Sande I Vestfold | 2018 |
| Positive Talk AS | Tolvsrød | 2021 |
| Pozgarri Limited | Oslo | 2026 |
| Praksisliv AS | Oslo | 2018 |
| Praksislære Ved Vågsfjord Legesenter AS | Harstad | 2024 |
| Praktikertjänst AB | Se-103 55 Stockholm | 2010 |
| Praktyka Lekarska Ewa Pacholec Praktyka Stomatologiczna Ewa Pacholec | Pl-02 455 Warszawa | 2018 |
| Prasert Holding AS | Hafrsfjord | 2019 |
| Prateriet Logopedsenter AS | Rolvsøy | 2014 |
| Pre Neurolab AS | Oslo | 2019 |
| Preact AS | Horten | 2019 |
| Precident Invest AS | Charlottenlund | 2025 |
| Precuro AS | Harstad | 2013 |
| Preha AS | Ålesund | 2025 |
| Preik Logopedi AS | Tau | 2025 |
| Preljevic AS | Frogner | 2017 |
| Premium Hearing AS | Oslo | 2023 |
| Premium Synskirurgi AS | Sarpsborg | 2025 |
| Premolar AS | Oslo | 2025 |
| Presisjon AS | Kristiansand S | 2018 |
| Presisjon Omsorg AS | Kristiansand S | 2024 |
| Prestegaard Holding AS | Sarpsborg | 2021 |
| Prestestien Tannlegepraksis AS | Ulset | 2015 |
| Prestmo Spesialistlegesenter AS | Trondheim | 2015 |
| Pri Health Østrem AS | Ågotnes | 2024 |
| Prima Arena AS | Heimdal | 2017 |
| Prima AS | Heimdal | 1992 |
| Prima Assistanse AS | Oslo | 2006 |
| Prima Holding Trondheim AS | Heimdal | 2017 |
| Prima Nordic AS | Oslo | 2019 |
| Prima Optikk AS | Rosendal | 2018 |
| Prima Pioner AS | Gullaug | 2023 |
| Prima Tannklinikk AS | Fredrikstad | 2024 |
| Primadent AS | Fjerdingby | 2020 |
| Primare AS | Kongshavn | 2021 |
| Primary Care Services AS | Hamar | 2023 |
| Prime Medical Clinic AS | Oslo | 2018 |
| Prime Partners Holding AS | Fredrikstad | 2024 |
| Primero AS | Moss | 2013 |
| Primo Fysioterapi AS | Sandnessjøen | 2014 |
| Primus AS | Bekkestua | 2016 |
| Primus Pilus AS | Bergen | 2015 |
| Primærkontakten for Muskel & Skjelett AS | Ålesund | 2016 |
| Primærkontakten for Muskel-Og Skjelettplager AS | Florø | 2013 |
| Prince Johnson Health AS | Avaldsnes | 2020 |
| Prinsdal Legesenter AS | Oslo | 2021 |
| Privat Helse AS | Finsland | 2025 |
| Private Medical Services Norway AS | Oslo | 2026 |
| Privathospitalet Fana Medisinske Senter AS | Paradis | 2014 |
| Privatklinikken AS | Bergen | 2009 |
| Privatklinikken I Skien AS | Skien | 2019 |
| Privatomsorgen AS | Sandefjord | 2011 |
| Privatpsykiater AS | Asker | 2012 |
| Privattannlegen AS | Oslo | 2015 |
| Privattannlegene Tore Karlsen AS | Fredrikstad | 2019 |
| Pro Cosmetique AS | Røros | 2020 |