| Pearl Journeys AS | Grimstad | 2017 |
| Pebbles AS | Oslo | 2019 |
| Pebbs AS | Drammen | 2026 |
| Pecus AS | Oslo | 2012 |
| Pedab Finance Norway AS | Oslo | 2018 |
| Pedagoghuset AS | Drammen | 2009 |
| Pedagogisk AS | Drammen | 2026 |
| Pedagogisk Bemanning AS | Oslo | 2021 |
| Pedagogisk Vikarsentral AS | Bergen | 2004 |
| Peder Aarø AS | Kragerø | 2013 |
| Peder Haakestad AS | Larvik | 1988 |
| PEDERS1 Hage Og Uteareal Vedlikehold AS | Mo I Rana | 2022 |
| Pedersen Agentur Norge AS | Haugesund | 2016 |
| Peducon Nagel Og Larsen Pedagogisk Og Økonomisk Rådgivning Ans | Skjetten | 1987 |
| Peer Gynt Tours AS | Oslo | 1987 |
| Peg Holding AS | Røyken | 2022 |
| Pegasus Facility Services AS | Oslo | 2019 |
| Pegasus Flyinvest AS | Gardermoen | 2023 |
| Pegg AS | Bergen | 2021 |
| Pegmata AS | Voss | 2025 |
| Peikli Og Ninson Ans | Oslo | 1995 |
| Peiling Da | Oslo | 2003 |
| Peis-På AS | Sveio | 2023 |
| Peka Bemanning AS | Oslo | 2014 |
| Peliar Eiendom AS | Råholt | 2023 |
| Peliar Holding AS | Råholt | 2023 |
| Pelias Norsk Skadedyrkontroll AS | Elverum | 2018 |
| Pelikan Investment AS | Ski | 2003 |
| Pelister AS | Oslo | 2003 |
| Pellas Renhold AS | Oslo | 2010 |
| Pelle Politibil AS | Bodø | 2024 |
| Pelle's Service Partner AS | Jørpeland | 1985 |
| Pem AS | Lindesnes | 2022 |
| Pemaco Aps | 5300 Kerteminde | 2006 |
| Pemax AS | Asker | 2013 |
| Pemu AS | Moss | 2015 |
| Pen Hage AS | Tolvsrød | 2015 |
| Pen Renhold AS | Halsa | 2020 |
| Penger På Nett Ans | Oslo | 1998 |
| Pensions Management A/S Nuf | Oslo | 2025 |
| Pensjonistgutta AS | Tønsberg | 2015 |
| Pensjonsrådgiver.No AS | Oslo | 2018 |
| Pent Gress AS | Tønsberg | 2025 |
| Pentacle AS | Kviteseid | 2022 |
| Penumbra AS | Oslo | 2022 |
| People and Places AS | Oslo | 2026 |
| People AS | Bodø | 2017 |
| People First AS | Kråkstad | 2026 |
| People of Norway AS | Oslo | 2009 |
| People Oslo AS | Oslo | 2016 |
| People Performance AS | Tananger | 2015 |
| People Search & Leadership AS | Oslo | 2026 |
| People Select AS | Straumgjerde | 2020 |
| PEOPLE2.0 Norway AS | Oslo | 2012 |
| PEOPLE2BUSINESS AS | Oslo | 1989 |
| PEOPLE4YOU AS | Askim | 2006 |
| PEOPLE4YOU Management Østfold-Follo AS | Askim | 2016 |
| Peos Gatukök I Svinesund AB | Se-452 93 Strömstad | 2017 |
| Peptide Patents AS | Tromsø | 2019 |
| Per Ellingsen AS | Holmestrand | 1986 |
| Per Krogh Holding Aps | Dk-8930 Randers | 2012 |
| Per Lund Invest AS | Hamar | 1987 |
| Per Ole Hansen AS | Kristiansand S | 2023 |
| Per Reese Maskin AS | Sande I Vestfold | 2012 |
| Per Skipperud AS | Næroset | 2017 |
| Per Stordrange AS | Dalen | 2022 |
| Per Sylte AS | Vinstra | 2013 |
| Per's Hage AS | Søgne | 2019 |
| Perako AS | Oslo | 2004 |
| Peregrine Services Ltd | 03186 Torrevieja, Alicante | 2013 |
| Pereus Invest AS | Nesodden | 1993 |
| Perfect Garden AS | Snarøya | 2014 |
| Perfect Moments AS | Drøbak | 2026 |
| Perfect Renhold Da | Kjeller | 2007 |
| Perfekt Design & Bygg AS | Kolbotn | 2025 |
| Perfekt Effekt Service AS | Notodden | 2018 |
| Perfekt Gjort AS | Averøy | 2014 |
| Perfekt Hage AS | Oslo | 2022 |
| Perform Aviation Limited | Swords County Dublin | 2015 |
| Periculo AS | Fana | 2012 |
| Periscope Personal | 18059 Rostock | 2009 |
| Periscope Skandinavie S.R.O. | Cz-602 00 Brno | 2008 |
| Perlen Renhold Da | Eidsvoll | 2007 |
| Perler På En Snor SA | Fevåg | 2017 |
| Pernille Holding AS | Oslo | 2006 |
| Pers Utleieservice AS | Gamle Fredrikstad | 2008 |
| Perseverante AS | Fredrikstad | 2010 |
| Persi AS | Grålum | 2010 |
| Persi Holding AS | Skiptvet | 2021 |
| Personal Security AS | Rotsund | 2023 |
| Personal Service Og Sikkerhet AS | Stavanger | 2003 |
| Personal Team AS | Bodø | 2006 |
| Personal Team Bodø AS | Bodø | 2014 |
| Personal Utvelgelse Tønsberg AS | Oslo | 1991 |
| Personalet AS | Grimstad | 2025 |
| Personalhuset Ringnes AS | Oslo | 2009 |
| Personalhuset Service Management AS | Oslo | 2014 |
| Personalhuset Solutions AS | Oslo | 2024 |
| Personalhuset Staffing Group AS | Oslo | 2000 |
| Personalsykler Norge AS | Lysaker | 2021 |