 | TAKSYSTEM AS | 930638153 | BODØ |
| TAKTEKKER FRANTZEN EFTF. AS | 968013998 | BERGEN |
| TAKTEKKERMESTER B.SCHRAMM AS | 934199960 | MODUM |
| TAKTEKKING SØR ISOLA AS | 914154952 | LILLESAND |
| TAKTEKNIKK AS | 994994964 | VESTRE TOTEN |
| 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 |
| TAMBURSTUEN AS | 914892260 | LILLEHAMMER |
| T. AMUNDSEN BYGG AS | 926436791 | BERGEN |
| TANDBERG ARKITEKTER AS | 913068998 | OSLO |
| TANDBERG EIENDOM AS | 955287614 | OSLO |
| TANDBERG INNEKLIMA KOMPETANSE | 927768313 | HOLMESTRAND |
| TANDBERGS ELEKTRISKE AS | 916636946 | OSLO |
| TANG1 BYGG AS | 913202252 | DØNNA |
| TANGEN-BYGG AS | 992531762 | BAMBLE |
| TANGEN CONSULTING AS | 963626525 | ASKER |
| TANGEN CONSULTING BYGGKONTROLL AS | 917281920 | ASKER |
| TANGEN INGENIØR- OG ARKITEKTKONTOR AS | 997851137 | HORTEN |
| TANGEN MASKIN AS | 990788790 | MOLDE |
| TANGEN UTEANLEGG AS | 923700390 | RANA |
| TANGERÅS BYGG AS | 827388912 | VOSS |
| TANGNÆS BYGG AS | 914947421 | FLÅ |
| 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 |
| TARKON PROJEKT SP. Z.O.O. NUF | 829797852 | |
| TÅSEN EL-INSTALLASJON AS | 934220269 | OSLO |
| TASTA RØR AS | 990681562 | STAVANGER |
| TATA STEEL NORWAY BYGGSYSTEMER AS | 959807949 | SKIEN |
| TAVEI AS | 929823826 | OSLO |
| T BERG ANLEGGSTEKNIKK AS | 987046295 | HOLMESTRAND |
| T&B HANSEN INSTALLASJON AS | 933297047 | LILLESTRØM |
| TBM & ANLEGG AS | 833331752 | ULLENSVANG |
| TBS OPTIMAL AS | 995152746 | MELHUS |
| TB TØMRERSERVICE AS | 929569385 | FROSTA |
| T. DAHL MASKIN AS | 913203321 | BERGEN |
| T. DANIELSEN BYGG AS | 929425383 | ØYGARDEN |
| TEAM BYGG NORGE AS | 929278305 | GRIMSTAD |
| TEAMBYGG OPPDAL AS | 888139192 | OPPDAL |
| TEAM ERIKSEN AS | 989881124 | HARSTAD |