| Peisteknikk AS | Bryne | 2007 |
| Pekada Holding AS | Nyborg | 2018 |
| Pekteck S.R.L | Oslo | 2016 |
| Pela Holding AS | Nesna | 1982 |
| Pelaren AS | Hidrasund | 2018 |
| Pelle Bygg AS | Strømmen | 2021 |
| Pelle Palmqvist Såg Og Borr I Gävle AB Nuf | Se-802 86 Gävle | 2025 |
| Pema Snekkeri AS | Nittedal | 2019 |
| Pemasol Agder - Bjærshult AS | Kristiansand S | 2018 |
| Pemasol Bergen AS | Bergen | 2025 |
| Pemasol Oslo Nord AS | Skjetten | 2025 |
| Pemate Oü | Sangaste Valgamaa 68221 | 2014 |
| Pen Invest AS | Oslo | 2020 |
| Pengesekken Holding AS | Bjørkelangen | 2023 |
| Pennock Mur & Håndverk AS | Trondheim | 2025 |
| Pensel Maling & Design AS | Haugesund | 2018 |
| Penta Stillas Utleige AS | Øvre Årdal | 2009 |
| Pentex AS | Rolvsøy | 1976 |
| Penton Services Group Limited Nuf | Tonbridge Tn12 0Qy | 2026 |
| Peoplehub Holding AS | Hamresanden | 2022 |
| Pepe AS | Tverlandet | 2022 |
| Pepshi Malerfirma AS | Kristiansand S | 2012 |
| Pept OY AB | Fi 69600 Kaustinen | 2020 |
| Per a Haugen Bygg AS | Oslo | 2014 |
| Per a Paulsen AS | Fjellhamar | 1986 |
| Per a Øren AS | Høyanger | 2013 |
| Per a Øren Entreprenør AS | Høyanger | 2013 |
| Per a Øren Holding AS | Høyanger | 2013 |
| Per Aarsleff Nuf | Dk-8260 Viby J | 1998 |
| Per Abrahamsen AS | Sandefjord | 1999 |
| Per Andreas Bygg AB Nuf | Se-427 50 Billdal | 2025 |
| Per Arne & Steinar Sørensen Ans | Vannvåg | 1992 |
| Per Augon Sauar AS | Neslandsvatn | 2011 |
| Per Bye AS | Hønefoss | 2006 |
| Per Dagfinn Thorsen AS | Sandefjord | 2022 |
| Per E Gjeldnes Maskin AS | Kvanne | 2022 |
| Per Einar Sælid Mur Og Flis AS | Fagernes | 2015 |
| Per Ektvedt Holding AS | Revetal | 1996 |
| Per Erik Ansnes Eiendom AS | Oppdal | 2005 |
| Per Erik Brekke Holding AS | Skiptvet | 2023 |
| Per Guldahl AS | Skogbygda | 1996 |
| Per Gunnar Kongensøy AS | Rørvik | 2012 |
| Per H Stokke AS | Tranby | 1992 |
| Per Hagen AS | Rendalen | 1996 |
| Per Helge Manneråk AS | Marnardal | 2000 |
| Per Hovden Lynghaug Murmester & Entreprenør AS | Bergen | 1997 |
| Per Hystad AS | Hølen | 2012 |
| Per Inge Sjurseth AS | Åkrehamn | 2013 |
| Per Johansen AS | Nøtterøy | 1983 |
| Per Jonas Nordhagen AS | Bekkestua | 2025 |
| Per Kjetil Tødås AS | Skage I Namdalen | 2018 |
| Per Klungland AS | Ramnes | 2020 |
| Per KR Fossum Snø Og Anlegg Enebakk AS | Enebakk | 2001 |
| Per Kristian Borge AS | Grimstad | 2025 |
| Per Kristian Sandnes AS | Nordfjordeid | 2013 |
| Per Kvæstad AS | Sand | 2008 |
| Per Odd Austad A/S | Steinkjer | 1988 |
| Per Ola Johnsen | Se-673 31 Charlottenberg | 2020 |
| Per Olaf Vassgård Maskinentreprenør AS | Hjelset | 1974 |
| Per Ole Moen AS | Ulefoss | 1999 |
| Per Pettersen Montasje AS | Borgenhaugen | 2018 |
| Per Pytten Byggefirma AS | Byremo | 1987 |
| Per Ståle Aarstad Invest AS | Melhus | 2014 |
| Per Sævareid AS | Skånevik | 2023 |
| Per Try AS | Søgne | 2000 |
| Per Ulriksen AS | Brekstad | 2017 |
| Per Venes Kranservice AS | Mo I Rana | 1992 |
| Per Viken AS | Nes I Ådal | 2018 |
| Per Øverlands Eiendomsselskap AS | Porsgrunn | 1989 |
| Per&Per AS | Fredrikstad | 2024 |
| Perfect AS | Stavanger | 2007 |
| Perfect Renovations AS | Tomter | 2023 |
| Perfect Temperature Group AS | Tromsø | 2017 |
| Perfectum Mobile | Lt-Vilnaus Rajonas | 2008 |
| Perfekt Bolig AS | Oslo | 2024 |
| Perfekt Elektro AS | Frogner | 2026 |
| Perfekt Hus Og Hage AS | Drammen | 2020 |
| Performance Invest AS | Laksevåg | 2013 |
| Performante S.R.O. | Sk-831 06 Bratislava - Mestska Cast | 2021 |
| Pergola Norge AS | Ingeberg | 2025 |
| Pergola Pluss AS | Stavsjø | 2026 |
| Peridalns VVS | Se-672 94 Årjeng | 2018 |
| Peripeti AS | Oslo | 2005 |
| Perlitti Bygg AS | Trondheim | 2018 |
| Permu AS | Sola | 2025 |
| PEROTIS3KASSER AS | Fetsund | 2024 |
| Perri AS | Oslo | 2022 |
| Pers Elektriske AS | Bruvoll | 2005 |
| Pers Elteknik AB Nuf | Se-31160 Ullared | 2023 |
| Pers Glass Service AS | Kongsvinger | 1995 |
| Pers Utemiljø AS | Halden | 2015 |
| Persand AS | Skjetten | 2007 |
| Persel AS | Drammen | 2023 |
| Perseusz SP. Z O.O. Nuf | Pl-31-509 Krakow | 2026 |
| Persillesletta AS | Gressvik | 2024 |
| Persolita Uab | Lt-5800 Klaipeda | 2013 |
| Personell Entreprise AS | Alta | 2022 |
| Personlig Maler AS | Oslo | 2023 |
| Perspektiv AS | Oslo | 2023 |
| Persson Bygg AS | Konsmo | 2015 |