 | 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 | NORDRE FOLLO |
| 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 |
| TANG1 BYGG AS | 913202252 | DØNNA |
| TANGEN-BYGG AS | 992531762 | BAMBLE |
| 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 BYGG NORGE AS | 929278305 | GRIMSTAD |
| TEAMBYGG OPPDAL AS | 888139192 | OPPDAL |
| 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 |
| TEAM REFSNES AS | 976563123 | HÅ |
| TEAM SPRINKLER AS | 917643792 | OSLO |
| TEAM VVS AS | 915607985 | SOLA |
| TECA AS | 983246702 | BØMLO |
| TECHEM NORGE AS | 992327669 | BÆRUM |
| TECHNOGARDEN AS | 986076905 | BÆRUM |
| TECHNOTEAM PROSJEKT AS | 915093329 | HAMAR |
| TECNO VVS AS | 913916204 | KVAM |
| TECTA TAK AS | 915476007 | VESTBY |
| TEDDY ELEKTRO AS | 868491922 | SANDEFJORD |
| TEFT ENTREPRENØR AS | 985233004 | VESTVÅGØY |
| TEGNAREN ÅGE GRUDE | 986888985 | HÅ |
| TEGNE & BYGGESERVICE AS | 937207549 | TROMSØ |
| TEGNEPARTNER AS | 895011592 | MOSS |
| TEGNERIET AS | 919388285 | KRISTIANSUND |
| TEGNESPESIALISTEN AS | 919949236 | HVALER |
| TEGN LANDSKAP LANDSKAPSARKITEKT MERETE SCHAU MNLA | 985763755 | TØNSBERG |
| TEIEN RØRSERVICE AS | 988861804 | ASKER |
| TEIGEN ARKITEKTER AS | 975804895 | OSLO |
| TEIGEN & BUEN ENTREPRENØR AS | 934958845 | FLESBERG |
| TEJ TAKST AS | 998418968 | FREDRIKSTAD |
| TEKFORVALT AS | 998161991 | TANA |
| TEKK AS | 884024242 | PORSGRUNN |
| TEKKERN AS | 929343573 | SYKKYLVEN |
| TEKNACONSULT AS | 987806826 | SANDNES |
| TEKN. BYGGINGENIØR AS | 931687611 | NITTEDAL |
| TEKNIKK BYGG OG TØMRERFIRMA AS | 913542738 | BÆRUM |
| TEKNISKBUREAU AS | 830154582 | STAVANGER |
| TEKNISKE LØSNINGER AS | 911992442 | BERGEN |
| TEKNISK VENTILASJON AS | 980217345 | TRONDHEIM |
| TEK-NORGE AS | 919304413 | BÆRUM |
| TEKODA ELEKTRO AS | 998480132 | ULLENSAKER |
| TELE BLIKK AS | 924608056 | NOTODDEN |
| TELEBRYGGEN AS | 823578652 | PORSGRUNN |
| TELEBYGG BRATSBERG AS | 999631452 | HJARTDAL |
| TELE-C EIENDOM AS | 826396792 | ASKØY |
| TELEKLIMA AS | 990330255 | PORSGRUNN |
| TELEMARK BETONGPUSS OG FORSKALING AS | 981043634 | MIDT-TELEMARK |
| TELEMARK BYGGENTREPRENØR AS | 916561725 | MIDT-TELEMARK |
| TELEMARK BYGGTEAM AS | 911663775 | PORSGRUNN |
| Telemark Entreprenørservice AS | 933509524 | PORSGRUNN |
| TELEMARKHUS AS | 861180042 | SKIEN |
| TELEMARK PARK & HAGEANLEGG AS | 993213896 | SKIEN |
| TELEMARK RØRSERVICE AS | 934024931 | SILJAN |
| TELEMARK SEAWORX AS | 818465572 | BAMBLE |
| TELEMARK TRANSPORT OG ENTREPRENØRSENTRAL AS | 992673044 | TOKKE |
| TELEMASTER AS | 911723077 | KONGSBERG |
| TELERØR A/S | 946858021 | PORSGRUNN |
| TELERØR ELEKTRO AS | 928978192 | PORSGRUNN |