 | ØYNEBRÅTEN ANLEGGSTEKNIKK AS | 811661392 | GOL |
| ØY SNEKKERN AS | 925796972 | HITRA |
| ØYSTEIN ALBERTSEN AS | 916677316 | VÅGAN |
| ØYSTEIN HENRIKSEN AS | 980263037 | ØVRE EIKER |
| ØYSTEIN KOPSLAND | 982556325 | NOTODDEN |
| ØYSTEIN LINDTVEIT AS | 988444898 | VEGÅRSHEI |
| ØYSTEIN SPIGSETH BYGGENTREPRENØR | 820014022 | NES |
| ØYSTEIN THOMMESEN AS | 980380017 | TRONDHEIM |
| ØYSTRE SLIDRE TØMRARLAG AS | 918618015 | ØYSTRE SLIDRE |
| ØYVIND ARNTZEN | 923539476 | GJØVIK |
| ØYVIND JOHNSEN ARKITEKTUR AS | 931984179 | FREDRIKSTAD |
| ØYVIND OLSEN BYGGSERVICE | 990906629 | BERGEN |
| ØYVIND VÅGSVOLL | 887632472 | FARSUND |
| P2 ARKITEKTKONTOR Peter Pompino | 986172742 | OSLO |
| PAAL AS | 922308837 | TRONDHEIM |
| PAAL J KAHRS ARKITEKTER AS | 955780698 | BERGEN |
| PA-CONSULT SIV.ING. SIGMUND JACOBSEN MNIF | 945775246 | MOSS |
| PA ENTREPRENØR AS | 952159429 | OSLO |
| P.A KLEV EFTF. AS | 913849094 | LINDESNES |
| PÅL HAUGSTAD | 970392971 | RINGEBU |
| PÅL H. DOBLOUG MASKIN AS | 995699087 | HAMAR |
| PALLIN AS | 948266970 | INDRE FOSEN |
| PALMBERG TAKST AS | 995698358 | DRAMMEN |
| PALMGREN AS | 896042602 | OSLO |
| PÅL NORDHAGEN AS | 912422356 | ENEBAKK |
| PÅL ØKSNE AS | 961802741 | NITTEDAL |
| PÅL VILLANGER BYGG AS | 988413003 | BERGEN |
| PÅ MILLIMETER`N AS | 979781628 | OSLO |
| PAM REFRIGERATION AS | 859871992 | HALDEN |
| PA MUR AS | 997532686 | KRISTIANSAND |
| PANARK AS | 965261486 | TRONDHEIM |
| PANELBYGG AS | 979143737 | DRAMMEN |
| PAN PROSJEKT AS | 927083558 | TROMSØ |
| PAPP OG BESLAG AS | 832041122 | BERGEN |
| PARADIS MASKINUTLEIE AS | 922715440 | STAVANGER |
| PARAGON VVS AS | 929106954 | OSLO |
| PARAPLY LANDSKAP AS | 920691943 | BERGEN |
| PARAT HALVORSEN AS | 986908277 | FLEKKEFJORD |
| PARK & ANLEGG ALTA AS | 915582354 | ALTA |
| PARK & ANLEGG AS | 982382955 | SARPSBORG |
| PARK & ANLEGGSTJENESTER AS | 980348954 | TRONDHEIM |
| PARKETTGRUPPEN AS | 888348972 | KARMØY |
| PA RØR AS | 988803286 | RANA |
| PARRINGTON BETONG AS | 931913050 | ASKER |
| PARS BYGG AS | 921817878 | LIER |
| PART ARKITEKTUR AS | 920470556 | BERGEN |
| PARTNERBLIKK AS | 910274694 | EIGERSUND |
| PARTNER ELEKTRO AS | 930016519 | LILLESTRØM |
| PAS INGENIØRER AS | 988599417 | SARPSBORG |
| PASS BYGG AS | 974362236 | ØYER |