 | PROCEED AS | 916878575 | ASKØY |
| PROCESS INSTALLATION AS | 918686762 | KRISTIANSAND |
| PROCON AS | 960193466 | KARMØY |
| PROCON RÅDGIVENDE INGENIØRER AS | 975874532 | STAVANGER |
| PROCON SPRINKLER AS | 932576996 | BERGEN |
| PROCUT AS | 980394972 | RAUMA |
| PRO DOK 3D AS | 924486961 | STAVANGER |
| PROEL AS | 983980031 | VÅGÅ |
| PROESS AS | 921636326 | ÅLESUND |
| PROFAB HOUSES | 916687281 | SARPSBORG |
| PROFF BYGGMESTER AS | 996428265 | LILLESTRØM |
| PROFFBYGG PL AS | 989748459 | BÆRUM |
| PROFF ELEKTRO AS | 996341275 | TRONDHEIM |
| PROFF EL&IT AS | 916519338 | ORKLAND |
| PROFF HÅNDVERKER GROUP AS | 920878555 | AURSKOG-HØLAND |
| PROFFLIS & PUSS AS | 921000626 | OSLO |
| PROFF PROSJEKT AS | 917687951 | ÅS |
| PROFF-RØR AS | 885300162 | VERDAL |
| PROFF RØRLEGGER AS | 911640228 | LILLESTRØM |
| PROFF RØR-SERVICE AS | 931830066 | NORDRE FOLLO |
| PROFF RØRSERVICE AS | 920045685 | OSLO |
| PROFF SNEKKERSERVICE AS | 930347698 | OSLO |
| PROFFTAK TRØNDELAG AS | 921524757 | TRONDHEIM |
| PROFF-VVS HUSSEIN | 931096737 | ASKER |
| PROFF ZAK AS | 830542752 | OSLO |
| PROFILBYGG TRONDHEIM AS | 990058377 | TRONDHEIM |
| PROFIL MONTASJE AS | 992506660 | PORSGRUNN |
| PROFILTEAM AS | 938184275 | HAMAR |
| PROFIL TREBYGG AS | 888488332 | FLESBERG |
| PROGETTO AS | 898072312 | DRAMMEN |
| PROGRUPPEN AS | 815098412 | INDRE ØSTFOLD |
| PRO GRUPPEN NORWAY AS | 925719242 | ENEBAKK |
| PRO INVENIA AS | 993404381 | TRONDHEIM |
| PROJEKT PLANUNG AS | 964105944 | OSLO |
| PROKLIMA CONSULTING AS | 924712538 | ASKER |
| PROLED AS | 924914831 | STORD |
| PROMO ENTREPRENØR AS | 921217641 | OSLO |
| PROMOSTAL AS | 817317812 | DRAMMEN |
| PRO PARTNERS AS | 919857013 | OSLO |
| PRO-PIPE NORWAY AS | 891847122 | DRAMMEN |
| PROPLAN BYGG AS | 915332870 | SKAUN |
| PROPOINT SURVEY AS | 988912859 | BÆRUM |
| PROREF AS | 931465457 | RÆLINGEN |
| PRORIV AS | 832799742 | OSLO |
| PRORØR AS | 923116702 | TRONDHEIM |
| PRORØRSERVICE AS | 929054156 | OSLO |
| PROSEC STAVANGER AS | 985535302 | STAVANGER |
| PROSJEKTBYGG AS | 966768673 | HERØY (MØRE OG ROMSDAL) |
| PROSJEKT & ENØK PARTNER AS | 996048616 | TØNSBERG |
| PROSJEKTFORM AS | 999156185 | TINN |