| Parat AS | Skåla | 1987 |
| Parat Halvorsen AS | Flekkefjord | 2004 |
| Parat P2H AS | Flekkefjord | 2018 |
| Pare Holding AS | Oslo | 2005 |
| Parkens Vognservice AS | Hurdal | 2019 |
| Parma Plast AS | Straume | 1991 |
| Paromed GmbH & Co. KG | De-83115 Neubeuern | 2021 |
| Part Spolka Z Ograniczona Odpowiedzialnoscia Nuf | Pl-03-233 Warszawa | 2015 |
| Partex Marking Systems Norway AS | Sande I Vestfold | 2001 |
| Partmont AB | Se-912 33 Vilhelmina | 2023 |
| Partner Industriemontage GmbH & Co. KG | Sortland | 2009 |
| Partner Skap AS | Raufoss | 2025 |
| Partner-Maskinering AS | Straume | 2016 |
| Pas Invest AS | Ålesund | 2005 |
| Pascal Drift AS | Oslo | 2007 |
| Pascal Holding AS | Oslo | 2007 |
| Pascal Tavle AS | Larvik | 2023 |
| Paschen Knudsen Produktutvikling Ans | Vollen | 2000 |
| Passer Group AS | Sandefjord | 2016 |
| Passer Products AS | Sandefjord | 2005 |
| Passion House AS | Oslo | 2014 |
| PASSION4FOOD AS | Ålgård | 2025 |
| Pastel Artwear AS | Oslo | 2023 |
| Pasvik Biovarme AS | Svanvik | 2007 |
| Patec Ltd Praxis Automation Technology Engineering Commi | 800295 Galati | 2007 |
| Patentes Talgo S.L.U. | Bergen | 2015 |
| Patentslipen AS | Ballstad | 2013 |
| Patisseriet AS | Bergen | 2013 |
| Patmos AS | Gamle Fredrikstad | 2012 |
| Patria Aviation OY | Fi-35600 Hallei | 2019 |
| Patrini D.O.O. Nuf | Hr-51227 Kukuljanovo | 2026 |
| Patriot Produksjon AS | Båtsfjord | 2023 |
| Pats Garage AS | Herdla | 2020 |
| Pattern B AS | Stavanger | 2020 |
| Paul Robert Graham Bolting Ltd | Gb Northumerland Ne22 5Tr | 2021 |
| Paul Vahle GmbH & Co KG | De-59174 Kamen | 2009 |
| Paulsen Mek Sveis & Motorverksted AS | Bjorbekk | 2021 |
| Paulsens Eiendomsselskap AS | Skåbu | 1986 |
| Paulsrud Snekkerverksted AS | Østre Gausdal | 2000 |
| PAW4PAW AS | Saksvik | 2022 |
| Pawel Palys "Pablo-Pal" Zaklad Remontowo Uslugowy | Pl-73110 Stargard | 2025 |
| Paxster AS | Borgenhaugen | 2015 |
| PB Svets AS | Oslo | 2022 |
| PBS Signalco Nuf | Fjerdingby | 2009 |
| PCC Norway AS | Skien | 2014 |
| PCM Ejendomme Aps Nuf | Dk-6200 Aabenraa | 2026 |
| PCM Europe Nuf | Fr-92300 Levallois-Perret | 2025 |
| PCS Construction Norway AS | Tomrefjord | 2015 |
| PCS Paintshops AS | Tomrefjord | 2024 |
| PCS Property AS | Tomrefjord | 2007 |
| PCS Pulverlakk AS | Larvik | 1988 |
| Pcstyling AS | Åsgårdstrand | 1991 |
| Pcøb Holding AS | Kristiansand S | 2005 |
| Pe Sveis AS | Sannidal | 2019 |
| Peab Asfalt Norge AS | Tromsø | 2009 |
| Peak Marine Tech AS | Nyborg | 2016 |
| Pearl Norway AS | Oslo | 2024 |
| Pearl Octopuss.Y AS | Oslo | 2018 |
| Peder B Sørvik AS | Averøy | 1999 |
| Peder B Sørvik Eiendom AS | Averøy | 1999 |
| Peder Kynnø AS | Trondheim | 2012 |
| Peders Mek. Verksted AS | Grong | 2005 |
| Pedersen Anlegg-Service AS | Mysen | 2020 |
| Pedersen Bakeri AS | Tromsø | 2013 |
| Pedersen Bakeri Finnsnes AS | Finnsnes | 2026 |
| Pedersen Maskinering AS | Bømlo | 2020 |
| Pedersen Og Lyngved Multiservice Ans | Steinkjer | 2022 |
| Pedersen Smie Og Sveiseverksted AS | Drammen | 1997 |
| Pedersen Subsea Consulting AS | Kvernaland | 2023 |
| Pedersen Sveis & Maskinering AS | Bøverbru | 2005 |
| Pefa AS | Vestnes | 1998 |
| Pege Treprodukter Da | Frei | 1998 |
| Pehan Produkter AS | Moss | 1996 |
| Pelagia AS | Bergen | 2005 |
| Pelagia Holding AS | Bergen | 2013 |
| Pelmar AS | Oslo | 2016 |
| Pels Og Kostyme AS | Sandnes | 2022 |
| Pelvital AS | Stathelle | 2012 |
| Pemasol Trøndelag AS | Rindal | 2024 |
| Pemco AS | Oslo | 1996 |
| Pemco Kosovo AS | Oslo | 2019 |
| Pemco Norge AS | Oslo | 2003 |
| Pemco Träpellets AB | Sandvika | 2010 |
| Pemco Venture AS | Oslo | 1928 |
| Pentalys Energy AS | Oslo | 2025 |
| Peo:S Rep Och Montage AB | 93198 Skellefteå | 2015 |
| People Productions AS | Haslum | 2026 |
| Pepe Utvikling AS | Mandal | 2005 |
| Peppercorn & Desires | Dk-7430 Ikast | 2019 |
| Pepperstadhjort AS | Vestby | 2020 |
| Per Amundsen Holding AS | Sjetnemarka | 2005 |
| Per Ivar Frantzen AS | Overhalla | 2012 |
| Per Mathisen Holding AS | Gan | 2005 |
| Per O Meier AS | Vear | 2012 |
| Per Olav Torbjørn Og Haralds Services AS | Tananger | 1990 |
| Per Reboli AS | Leira I Valdres | 1991 |
| Per's Kjøkken AS | Sandefjord | 1965 |
| Per-Christian Norborg AS | Oslo | 2017 |
| Perental AS | Sandnes | 2019 |
| Perestrojka Invest AS | Os | 2014 |