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| PMH AS | 919591374 | SANDEFJORD |
| PMH MONTASJE AS | 926865781 | SANDEFJORD |
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| 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 |
| POLMAX BYGG AS | 921683235 | RINGSAKER |
| POLSK RASK BYGG AS | 825070052 | FARSUND |
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| 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 |
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| POWERPEX AS | 916967225 | LIER |
| POWER SOLUTIONS MMO AS | 811713112 | ALTA |
| POWERTECH AS | 897688182 | DRAMMEN |
| POWERTECH SERVICE AS | 913133978 | LIER |
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| PRAKSIS A AS | 911582295 | OSLO |
| PRAKSIS ARKITEKTER AS | 979468520 | STEINKJER |
| PRAKT BYGG AS | 912308731 | BÆRUM |
| PRE-CON AS | 915949339 | SØR-ODAL |
| PREFAB DESIGN AS | 897350122 | STAVANGER |
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| PROBY AS | 911709031 | SANDNES |
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| PROCEED AS | 916878575 | ASKØY |
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| PROCON AS | 960193466 | KARMØY |
| PROCON RÅDGIVENDE INGENIØRER AS | 975874532 | STAVANGER |
| PROCON SPRINKLER AS | 932576996 | BERGEN |