| Panorama Bygg AS | Molde | 2022 |
| Panoramix Wiktor Kupczyk AS | Tromsdalen | 2015 |
| Panteon Nor AS | Vardø | 2018 |
| Panzer Bygg AS | Kvinesdal | 2026 |
| Papes AS | Oslo | 2025 |
| Papier-Mettler KG | De-54497 Morbach | 2022 |
| Papson AS | Hokksund | 2021 |
| Par AS | Straume | 2006 |
| Parabolmontasje Ans | Skiptvet | 2004 |
| Paradigma Bygg & Interiør AS | Oslo | 2012 |
| Paradis Hus AS | Oslo | 2019 |
| Paradis Maskinutleie AS | Stavanger | 2019 |
| Paragon VVS AS | Oslo | 2022 |
| Paraguas SL | 03580 Alfas | 2013 |
| Paralel SRL | Bucuresti | 2006 |
| Parat Holding AS | Sandvika | 2021 |
| Parispeis AS | Tårnåsen | 2023 |
| Park & Anlegg Alta AS | Alta | 2015 |
| Park & Anlegg AS | Grålum | 2000 |
| Park 34 AS | Narvik | 2015 |
| Parken Solutions AS | Alta | 2022 |
| Parkeringsplasser AS | Skien | 2016 |
| Parkett & Interiør AS | Kongsvinger | 2013 |
| Parkett Design AS | Skjetten | 2021 |
| Parkett Magikeren AS | Auli | 2025 |
| Parkett O Golv Partne | 703 52 Ørebro | 2009 |
| Parkett Og Gulv AS | Rykkinn | 2020 |
| Parkett Og Idrettsgulv AS | Eidsvoll | 1992 |
| Parkettpartner AS | Brumunddal | 1997 |
| Parkettproffen AS | Drammen | 2022 |
| Parkettsliperi Og Malertjenester AS | Oslo | 2023 |
| Parkettsliperiet Jarle Olsen AS | Hetlevik | 2020 |
| Parkettsystem AS | Ålesund | 2016 |
| Parkiet System Serwis Jaroslaw Bezdziel | Pl-16-010 Studzianki | 2024 |
| Parko Adam Michalek | Pl-86-300 Grudziadz | 2015 |
| Parmet | Ee-67403 Otepää | 2024 |
| Parrington Betong AS | Klokkarstua | 2023 |
| Pars Entreprenad & Motorsport AB Nuf | 780 64 Lima | 2025 |
| Pars Holding AS | Høvik | 2020 |
| Parsell Holding AS | Ågotnes | 2005 |
| Parsell Utvikling AS | Ågotnes | 2012 |
| Part Construction AB | Se-952 31 Kalix | 2011 |
| Partikkel AS | Oslo | 2025 |
| Partille Kylservice AB | Se-433 75 Jonsered | 2012 |
| Partner Bygg AS | Hylkje | 2026 |
| Partner Drift AS | Drammen | 2021 |
| Partner Eiendomsutvikling AS | Oslo | 2016 |
| Partner Elektro AS | Skedsmokorset | 2022 |
| Partner Energy AS | Kristiansand S | 2019 |
| Partner Hus & Service Bygg AS | Os | 2025 |
| Partner Line AS | Geithus | 2013 |
| Partnerblikk AS | Egersund | 1975 |
| Partnerhus AS | Harestua | 2017 |
| Partnerr AS | Sola | 2023 |
| Partum Utvikling AS | Hokksund | 2015 |
| Partz Prosjekt AS | Auli | 2010 |
| Parvev Bygg AS | Røyneberg | 2023 |
| Pas Eiendom AS | Inderøy | 2012 |
| Pas Industrier AS | Inderøy | 2005 |
| Pascal Automasjon Bergen AS | Godvik | 2025 |
| Pascal Automasjon Follo AS | Ski | 2021 |
| Pascal Automasjon Larvik AS | Larvik | 2022 |
| Pasjonbygg Service AS | Hemnes | 2024 |
| Paslo Eiendom AS | Ulvik | 2012 |
| Pasmos AS | Hønefoss | 2008 |
| Pass Bygg AS | Øyer | 1995 |
| Passiv Energi AS | Kristiansand S | 2012 |
| Pastell AS | Stokke | 2012 |
| Pateh Jan Petryna Spolka Jawna | Pl-00-871 Warsaw | 2014 |
| Patela AS | Jessheim | 2019 |
| Patela Drift AS | Jessheim | 2022 |
| Patoouta Invest AS | Tverrelvdalen | 2018 |
| Patrator AS | Fjellstrand | 2019 |
| Patrick Jensen AS | Sandefjord | 2016 |
| Patrick Kristoffersen | Larvik | 2013 |
| Patricks Rør & Varme AS | Bjørnemyr | 2024 |
| Patrik Johansson | Se-632 22 Eskilstuna | 2015 |
| Patrik Thuresson Bryggeservice AB | 78064 Lima | 2016 |
| Patrol Invest AS | Garnes | 2005 |
| Patrycja Radwanska Bygg Nuf | Pl-21-500 Biala Podlaska | 2014 |
| Patryk Labuda Mur | 84-217 Szemud | 2007 |
| Paul Berg AS | Hunndalen | 2008 |
| Paul Berg Holding AS | Hunndalen | 2000 |
| Paul Bygg AS | Søreidgrend | 2008 |
| Paul J Loland AS | Mandal | 2009 |
| Paul Messa AS | Rakkestad | 2007 |
| Paul Wold AS | Slitu | 2010 |
| Paul's Flisleggerfirma AS | Ålesund | 2024 |
| Pauli Maskin AS | Nykirke | 2019 |
| Paulsen & Sønn AS | Risør | 1989 |
| Paulsen Bygg & Anlegg AS | Bjørnemyr | 1996 |
| Paulsen Bygg AS | Nøtterøy | 2016 |
| Paulsen Drift AS | Alta | 2020 |
| Paulsen Eiendom Risør AS | Risør | 1989 |
| Paulsen Elektro AS | Lena | 2017 |
| Paulsen Elektroteknikk AS | Kongsvik | 2023 |
| Paulsen Entreprenør AS | Lakselv | 1991 |
| Paulsen Frakt & Anlegg AS | Bjørnevatn | 2022 |
| Paulsen Holding AS | Risør | 2005 |
| Paulsen Håndverk AS | Vikersund | 2025 |