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| PLUSCONSULT AS | 925615544 | SARPSBORG |
| PLUSS INVEST EIENDOM AS | 992023244 | FREDRIKSTAD |
| PM BYGG OG ANLEGG AS | 923239693 | ALTA |
| PMH AS | 919591374 | SANDEFJORD |
| PMH MONTASJE AS | 926865781 | SANDEFJORD |
| POB BETONG AS | 929624424 | LIER |
| POB ENTREPRENØR AS | 965178228 | LIER |
| POCO ARKITEKTUR AS | 928989887 | OSLO |
| POINT AS | 891080662 | SANDEFJORD |
| POLAR GRENLAND AS | 991026142 | PORSGRUNN |
| POLAR PEL AS | 968431358 | TRONDHEIM |
| POL BETONG AS | 996467775 | SARPSBORG |
| POLLUX INSTALLASJON AS | 918034951 | OSLO |
| POLSK RASK BYGG AS | 825070052 | FARSUND |
| POLYGON AS | 915229115 | OSLO |
| PONTE BOLIG AS | 911802309 | BERGEN |
| PORS ENTREPRENØR AS | 926087800 | PORSGRUNN |
| PORS GJERDEFABRIKK AS | 984155263 | PORSGRUNN |
| PORSGRUNN RØRLEGGERFORRETNING AS | 924001216 | PORSGRUNN |
| PORT & DØRSENTER AS | 893557172 | TIME |
| PORTNOR BYGG AS | 912025136 | GJERDRUM |
| POTENSIAL ARKITEKTTJENESTE AS | 990821984 | STJØRDAL |
| POTOR EIENDOM AS | 925621218 | HALDEN |
| POVERUD ENTREPRENØR AS | 922197261 | ASKER |
| POWERHOUSE COMPANY NORWAY AS | 919453745 | OSLO |
| POWERPEX SERVICE AS | 928669491 | LIER |
| POWER SOLUTIONS MMO AS | 811713112 | ALTA |
| POWERTECH AS | 897688182 | DRAMMEN |
| POWERTECH SERVICE AS | 913133978 | LIER |
| POWWOW ARKITEKTER AS | 915407064 | OSLO |
| PPM PROSJEKT TRONDHEIM AS | 921882440 | TRONDHEIM |
| PRAKSIS ARKITEKTER AS | 979468520 | STEINKJER |
| PRAKT BYGG AS | 912308731 | BÆRUM |
| PRANS TAKST OG EIENDOM AS | 933787044 | OSLO |
| PRE-CON AS | 915949339 | SØR-ODAL |
| PREFAB DESIGN AS | 897350122 | STAVANGER |
| PREG BOLIG AS | 917476411 | ASKER |
| PREMIUM HYTTER AS | 997780388 | ASKØY |
| PREMIUM INNREDNING AS | 927926504 | ASKØY |
| PRESIS VEGDRIFT AS | 914888794 | BERGEN |
| PRETRE AS | 884647762 | STRYN |
| PROAKTIV BYGGEKONTROLL AS | 930877182 | ÅLESUND |
| PRO ARKITEKT AS | 914194423 | DRAMMEN |
| PROBALTIC AS | 919325593 | RÆLINGEN |
| PROBY AS | 911709031 | SANDNES |
| PRO BYGGESERVICE AS | 927326248 | MOSS |
| PROCEED AS | 916878575 | ASKØY |
| PROCESS INSTALLATION AS | 918686762 | KRISTIANSAND |