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| SYLMA AS | 926335731 | HUSTADVIKA |
| SYSTEMAIR AS | 929387384 | STAVANGER |
| SYSTEMBLOKK AS | 913289951 | MIDT-TELEMARK |
| SYSTEMBYGG1 AS | 926861182 | INDRE ØSTFOLD |
| SYSTEMBYGG AS | 919709340 | ØRLAND |
| SYSTEMCO AS | 993489506 | KRISTIANSAND |
| SYSTEMPROSJEKT INNLANDET AS | 925899763 | VESTRE TOTEN |
| SYSTEM TAK AS | 928555550 | NORDRE FOLLO |
| SYVERTSEN TOTALBYGG AS | 935520223 | DRAMMEN |
| T-2 PROSJEKT AS | 880120522 | OSLO |
| T3 BYGG AS | 928619508 | KVINESDAL |
| TAD RØRSERVICE AS | 930077488 | MELHUS |
| TAG BYGG PARTNER AS | 933538966 | BÆRUM |
| TAIAR ELECTRICAL ENGINEERING AS | 831629002 | OSLO |
| TAICO AS | 916030118 | TROMSØ |
| TAKLE/THØRUD ARKITEKTER AS | 913504577 | OSLO |
| TAKMESTERAN AS | 915313019 | VERDAL |
| TAKMESTEREN AS | 912177122 | DRAMMEN |
| TAKMONTASJE AS | 933855171 | SKIEN |
| TAK OG BESLAG AS | 929339746 | GJERDRUM |
| TAK OG PRIS AS | 913272927 | BERGEN |
| TAKPARTNEREN KNUDSEN AS | 986295194 | OSLO |
| TAKSERINGSKONTORET OTTA AS | 911704080 | SEL |
| TAKSERING VEST AS | 927427060 | STAVANGER |
| TAKSPESIALISTEN AS | 918297146 | EIGERSUND |
| TAKSPESIALISTEN GJESDAL TAK AS | 918945296 | STAVANGER |
| TAKST 24 AS | 932542471 | ÅLESUND |
| TAKSTARENA INNLANDET AS | 925078743 | RINGSAKER |
| TAKST & BYGGKONTROLL AS | 821130972 | TROMSØ |
| TAKSTFORUM AS | 914998727 | OSLO |
| TAKSTFORUM TELEMARK AS | 918411348 | SKIEN |
| TAKST-FORUM TRØNDELAG AS | 929872487 | TRONDHEIM |
| TAKST-GRUPPEN AS | 998610931 | SANDNES |
| TAKSTGRUPPEN AS | 995705400 | ØSTRE TOTEN |
| TAKSTKONTORET VALDRES AS | 919176555 | NORD-AURDAL |
| TAKST MÅLENG AS | 995654539 | VÅLER (ØSTFOLD) |
| TAKSTMANN ATLE ARKØY AS | 998463092 | BÆRUM |
| TAKSTMANNEN AS | 999630642 | FROGN |
| TAKSTMANN OG BYGGMESTER THOMAS HJELLE AS | 997943376 | BERGEN |
| TAKST MIDT AS | 823147392 | VERDAL |
| TAKST OG BYGG CONSULT AS | 923798560 | STORD |
| TAKST OG BYGGFORUM AS | 912432408 | OSLO |
| TAKST TEAM AS | 911571757 | STAVANGER |
| TAKSTTEAM VESTERÅLEN AS | 997923472 | SORTLAND |
| TAKST & VINDU SPESIALISTEN AS | 933240991 | OSLO |
| TAKSYSTEM AS | 930638153 | BODØ |
| TAKTEKKERBRØDRENE HUSTAD AS | 925631469 | NAMSOS |
| TAKTEKKER FRANTZEN EFTF. AS | 968013998 | BERGEN |
| TAKTEKKERMESTER B.SCHRAMM AS | 934199960 | MODUM |
| TAKTEKKING SØR ISOLA AS | 914154952 | LILLESAND |
| TAK & VEDLIKEHOLD AS | 966172029 | MOSS |
| TAK-VEST AS | 926073516 | BJØRNAFJORDEN |
| TAKVINDU SPESIALISTEN AS | 929865529 | STAVANGER |
| TALGØ BYGG AS | 965871098 | SURNADAL |
| TALGØ TØMRERSERVICE AS | 921469829 | SARPSBORG |
| TALGØ TRADBO AS | 940174538 | TINGVOLL |
| TALLBERG ELEKTRO AS | 930850225 | OSLO |
| TALO ARKITEKTUR AS | 943760748 | OSLO |
| TAM AS | 930424110 | MÅLSELV |
| TAMBURSTUEN AS | 914892260 | LILLEHAMMER |
| T. AMUNDSEN BYGG AS | 926436791 | BERGEN |
| TANDBERG ARKITEKTER AS | 913068998 | OSLO |
| TANDBERG EIENDOM AS | 955287614 | OSLO |
| TANDBERGS ELEKTRISKE AS | 916636946 | OSLO |
| TANGEN-BYGG AS | 992531762 | BAMBLE |
| TANGEN BYGG Knut Tangen | 948668874 | DØNNA |
| TANGEN INGENIØR- OG ARKITEKTKONTOR AS | 997851137 | HORTEN |
| TANGEN MASKIN AS | 990788790 | MOLDE |
| TANGEN UTEANLEGG AS | 923700390 | RANA |
| TANGERÅS BYGG AS | 827388912 | VOSS |
| TANGSTAD TRANSPORT AS | 929002024 | STEINKJER |
| TANKEN ARKITEKTUR AS | 915016790 | HEMNES |
| TANNÅNESET MASKIN AS | 920296149 | ALVDAL |
| TARALDSEN ELEKTRO | 865015062 | RINGERIKE |
| TARALDSVIK MASKIN AS | 977566584 | NARVIK |
| TARANRØD AS | 915526748 | HORTEN |
| TARGET CONSULTING AS | 925830496 | ØYGARDEN |
| TÅSEN EL-INSTALLASJON AS | 934220269 | OSLO |
| TASTA RØR AS | 990681562 | STAVANGER |
| TATA STEEL NORWAY BYGGSYSTEMER AS | 959807949 | SKIEN |
| TAVEI AS | 929823826 | OSLO |
| TBA ENTREPRENØR AS | 923552243 | OSLO |
| TB-AS AS | 928974839 | ENEBAKK |
| T BERG ANLEGGSTEKNIKK AS | 987046295 | HOLMESTRAND |
| T&B HANSEN INSTALLASJON AS | 933297047 | LILLESTRØM |
| TBH SERVICE AS | 933629309 | GJEMNES |
| TBM & ANLEGG AS | 833331752 | ULLENSVANG |
| TB TØMRERSERVICE AS | 929569385 | FROSTA |
| T BYGG & EIENDOM AS | 916097697 | DRAMMEN |
| T. DAHL MASKIN AS | 913203321 | BERGEN |
| T. DANIELSEN BYGG AS | 929425383 | ØYGARDEN |
| TEAM BYGGMONTASJE AS | 936669387 | TØNSBERG |
| TEAM BYGG NORGE AS | 929278305 | GRIMSTAD |
| TEAM ERIKSEN DRIFT AS | 836265912 | HARSTAD |
| TEAM HUDDIG AS | 825182772 | GRUE |
| TEAM INSTALLASJON AS | 934282299 | MOSS |
| TEAM JENSSEN AS | 928319903 | KÅFJORD |
| TEAM MATHIAS AS | 933790932 | SARPSBORG |
| TEAM ØDEGÅRD AS | 924191112 | ENEBAKK |