 | RØRLEGGERFIRMA K HORGHAGEN AS | 948804735 | SKAUN |
| RØRLEGGERFIRMA KJELGAARD AS | 987575352 | ENEBAKK |
| RØRLEGGERFIRMA LIEN & CO AS | 977054664 | VESTRE TOTEN |
| RØRLEGGERFIRMA STØLSVIK AS | 957854222 | STAVANGER |
| RØRLEGGERFIRMA VVS-PROFFEN AS | 981580915 | NARVIK |
| RØRLEGGER FRIGSTAD AS | 913026365 | KRISTIANSAND |
| RØRLEGGER G. ANDERSEN AS | 993020095 | SARPSBORG |
| RØRLEGGER GUNNAR LARSEN AS | 982845580 | SANDNES |
| RØRLEGGERGUTTA AS | 992604131 | FÆRDER |
| RØRLEGGER HAGEN | 929540883 | RINGEBU |
| RØRLEGGER HALVORSEN AS | 865380542 | ARENDAL |
| RØRLEGGER HARALDSEID AS | 918816283 | VINDAFJORD |
| RØRLEGGERHUSET AS | 819595712 | OSLO |
| RØRLEGGERIET AS | 933302652 | FROGN |
| RØRLEGGERIET OS AS | 977277388 | BJØRNAFJORDEN |
| RØRLEGGER JOHN HAUGERUD INNEHAVER BJØRG HAUGERUD | 952874985 | BAMBLE |
| RØRLEGGER JOHNY OLSEN AS | 918577726 | OSLO |
| RØRLEGGER JONAS PALERUD AS | 916999526 | LØTEN |
| RØRLEGGERKOMPANIET AS | 888460942 | OSLO |
| RØRLEGGER KRIEBEL AS | 913495284 | AURSKOG-HØLAND |
| RØRLEGGER LARS AS | 967653632 | OSLO |
| RØRLEGGER LIENE AS | 929432479 | GRIMSTAD |
| RØRLEGGER MAGNUS TALBERG AS | 926351931 | SARPSBORG |
| RØRLEGGERMESTER AADNE CARLSEN AS | 924760656 | SANDNES |
| RØRLEGGERMESTER ÅGE K HAUGERUD AS | 983034039 | KONGSBERG |
| RØRLEGGERMESTER ALF ØSTREM EIK | 986682759 | NANNESTAD |
| RØRLEGGERMESTER ANDREAS ERIKSEN AS | 985298106 | BÆRUM |
| RØRLEGGERMESTER ARE M. FISKAA AS | 990893748 | VANYLVEN |
| RØRLEGGERMESTER ARVE NILSEN AS | 917120390 | STAVANGER |
| RØRLEGGERMESTER CARSTENSEN AS | 929680790 | KRISTIANSAND |
| RØRLEGGERMESTER DANIEL K. BERLAND AS | 920274013 | ASKØY |
| RØRLEGGERMESTER EDVARD TJØSTHEIM AS | 888960392 | STAVANGER |
| RØRLEGGERMESTER EINAR JØRSTAD AS | 979519532 | OSLO |
| RØRLEGGERMESTER ERLANDSEN AS | 919262907 | LØRENSKOG |
| RØRLEGGERMESTER FRANK STØRKERSEN AS | 988409294 | VÅGAN |
| RØRLEGGERMESTER FREDDY THORBJØRNSEN AS | 993946362 | FÆRDER |
| RØRLEGGERMESTER HÅKON TROLSRUD AS | 912416445 | DRAMMEN |
| RØRLEGGERMESTER HOLAN AS | 826376732 | VERDAL |
| RØRLEGGERMESTER JAN ELLINGSEN AS | 956483700 | ANDØY |
| RØRLEGGERMESTER JARLE HÅKEDAL AS | 992811927 | BIRKENES |
| RØRLEGGERMESTER JARLE HAUG AS | 813292432 | TRONDHEIM |
| RØRLEGGERMESTER JARLE OLSEN AS | 921403690 | STORD |
| RØRLEGGERMESTER JENSEN AS | 914443296 | LILLESTRØM |
| RØRLEGGERMESTER KAI G ALMELI AS | 979569289 | EIDSVOLL |
| RØRLEGGERMESTER KJELL AUNMO AS | 985049998 | RØROS |
| RØRLEGGERMESTER KJELL HORN AS | 970892494 | VESTVÅGØY |
| RØRLEGGERMESTER LARS GULBRANDSEN | 981553918 | DRAMMEN |
| RØRLEGGERMESTER LIEN AS | 911865939 | RINGERIKE |
| RØRLEGGERMESTER MANGELRØD AS | 927476118 | LARVIK |
| RØRLEGGERMESTER MORTEN ØVLAND AS | 831707372 | KRISTIANSAND |