 | TELETO AS | 833841262 | BÆRUM |
| TELHAUG BETONG AS | 928775968 | ÅSERAL |
| TELLEFSEN AS | 992841702 | BAMBLE |
| TEMA VEST AS | 967356557 | ØRSTA |
| TEMPIA AS | 999324622 | VÅGAN |
| TENDRA ARKITEKTUR AS | 923535276 | SOLA |
| T. ENGEN MASKIN AS | 930973246 | ØYER |
| TEO BYGG AS | 936315801 | SANDNES |
| TEO MASKIN AS | 915363504 | LØRENSKOG |
| TEQVA RØR HAUGESUND AS | 953697777 | KARMØY |
| TERJE GALDAL AS | 987989106 | KVINESDAL |
| TERJE GRØNMO ARKITEKTER AS | 990825130 | OSLO |
| TERJE HALSAN AS | 941553249 | MELØY |
| TERJE HOVE AS | 998355397 | HOLE |
| TERJE LARSEN VVS AS | 988026131 | LARVIK |
| TERJE NILSGÅRD | 997625633 | RØROS |
| TERJE RUSTAND TRANSPORT AS | 922235635 | FLESBERG |
| TERJE SANGESLAND AS | 912181839 | VENNESLA |
| TERJE SOLLID AS | 990011524 | KONGSBERG |
| TERJE UR AS | 980891410 | STRAND |
| TERJE URDAL AS | 911635755 | VENNESLA |
| TERJE VERSLAND | 928785521 | BJERKREIM |
| TERMOBOLIG AS | 930057290 | BÆRUM |
| TERNA BYGG AS | 892667772 | ARENDAL |
| TERNEN DRIFT OG UTBYGGING AS | 821351952 | ASKER |
| TERNEN HÅNDVERK AS | 916162693 | ASKER |
| TERO ANLEGG AS | 960870492 | GRAN |
| TERØY MASKIN AS | 980363767 | KINN |
| TERRAPLAN AS | 923189890 | DRAMMEN |
| TERRAX AS | 935908450 | ØVRE EIKER |
| TERTNES ENTREPRENØR AS | 930572098 | BERGEN |
| TESSEM BYGG AS | 826994002 | GRONG |
| TETA BYGG AS | 935557569 | NESBYEN |
| TETLIE BYGG | 812048252 | RAUMA |
| TETT. AS | 822562582 | LINDESNES |
| TEVAS AS | 982715199 | BERGEN |
| TEXWOOL AS | 932566494 | SØNDRE LAND |
| T-F BYGG AS | 917346879 | FÆRDER |
| TFC RØR AS | 923709711 | LØRENSKOG |
| TFC-TECHNICAL FIRE CONSULTING AS | 917427852 | LØRENSKOG |
| T.F. MASKIN AS | 913836731 | ASKER |
| TFS BLIKK OG FASADE AS | 932319365 | MELHUS |
| TFS ENTREPRENØR AS | 912534154 | MELHUS |
| TFS TAK OG MEMBRAN AS | 932319357 | MELHUS |
| TGA AS | 990691991 | VESTRE TOTEN |
| TGK BYGG AS | 997230345 | RINGERIKE |
| TG TØMRERSERVICE AS | 926405551 | STJØRDAL |
| T H A EIDE | 976742605 | STAVANGER |
| THARASO AS | 911734931 | SOGNDAL |
| TH BHAS BYGG AS | 967751081 | ØYGARDEN |
| TH BLIKK AS | 912783537 | RANA |
| TH BYGG AS | 933591220 | BRØNNØY |
| TH DØRA AS | 929306503 | DRAMMEN |
| THERMA INDUSTRI AS | 991863796 | OSLO |
| THERMA KULDE AS | 917216401 | OSLO |
| THERMAX AS | 984757514 | TØNSBERG |
| THERMICA AS | 997933273 | LIER |
| THERMO CONTROL AS | 979439334 | NORDRE FOLLO |
| THERMO CONTROL NORD AS | 846202552 | HARSTAD |
| THE WAGONSHED PROJECT AS | 928079325 | KONGSBERG |
| THINGBØ RØRSERVICE AS | 927410613 | SANDNES |
| THINGSTAD BJØRN | 971653493 | ÅMOT |
| THISGAARD BYGG AS | 935032458 | SANDEFJORD |
| TH. JOHANSEN & SØNNER AS | 935721652 | RINGSAKER |
| TH KOLBEINSEN INSTALLASJON AS | 976038266 | KARMØY |
| TH MASKIN AS | 998557976 | HEMSEDAL |
| THOEN MASKIN AS | 995352605 | ÅL |
| THØGERSEN BYGG OG DRIFT | 930694339 | AURSKOG-HØLAND |
| T HOLMEIDE & SØNNER AS ENTREPRENØRFORRETNING | 944229264 | LIER |
| THOMASSEN ARKITEKTKONTOR AS | 963092229 | OSLO |
| THOMASSEN BYGG AS | 991281959 | SALANGEN |
| THOMASSEN RØR AS | 818952872 | LILLESAND |
| THON & CO AS | 935062691 | MODUM |
| THON MASKIN AS | 925389269 | NORD-AURDAL |
| THORALF MYHRE AS | 917871167 | SANDNES |
| THORE KNUTSEN MASKIN OG TRANSPORT AS | 991327495 | TYSVÆR |
| THORE LUNDHAGEN GRAVING/TRANSPORT | 992240911 | LILLESTRØM |
| THORE MAGNUSSEN OG SØNN AS | 975950824 | VESTVÅGØY |
| THORENDAHL AS | 963265433 | OSLO |
| THOR ENGINEERING AS | 914464676 | ÅSNES |
| THOR GJUL AS | 989995332 | ØRLAND |
| THOR GUNDERSEN AS | 987147407 | HAMAR |
| THØRING & SØNNER AS | 933396347 | LESJA |
| THOR MAGNE HANSEN & SØNN AS | 985826617 | LYNGDAL |
| THORMODSÆTER ENTREPRENØR AS | 993578258 | KVINNHERAD |
| THORNSTRÖM BROOKFIELD ARKITEKTER AS | 929631897 | BERGEN |
| THORSEN & MARCUSSEN AS | 944225633 | FÆRDER |
| THORSHAUG RØR AS | 931032399 | LILLESTRØM |
| THORSNES BYGG TB AS | 926940791 | OSLO |
| THOR STEINAR BYGGTJENESTER AS | 979713126 | STAVANGER |
| THORSTEINSEN ENTREPRENØR AS | 816119812 | BERGEN |
| THORVALD HANSEN AS | 895877972 | GRIMSTAD |
| THOR WIKE & Co AS | 960957334 | HOLMESTRAND |
| TH.S.ENTREPRENØR AS | 923185844 | LILLESTRØM |
| THUNBERG ENTREPRENØR AS | 913827139 | LARVIK |
| THV AS | 997448227 | HÆGEBOSTAD |
| T. I. LARSEN RØRLEGGER AS | 991445404 | KRISTIANSAND |
| TILLER-VIMEK AS | 980043959 | SØR-FRON |
| TILSETH AS | 979579330 | VOLDA |
| TIMBERBYGG AS | 922577021 | TRONDHEIM |