 | 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. | 829797852 | |
| TASTA RØR AS | 990681562 | STAVANGER |
| TATA STEEL NORWAY BYGGSYSTEMER AS | 959807949 | SKIEN |
| T BERG ANLEGGSTEKNIKK AS | 987046295 | HOLMESTRAND |
| 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 |
| TEAMBYGG OPPDAL AS | 888139192 | OPPDAL |
| TEAM ERIKSEN AS | 989881124 | HARSTAD |
| TEAM INSTALLASJON AS | 934282299 | MOSS |
| TEAM JÆREN AS | 918335765 | TIME |
| TEAM JENSSEN AS | 928319903 | KÅFJORD |
| TEAM ØDEGÅRD AS | 924191112 | ENEBAKK |
| TEAM REFSNES AS | 976563123 | HÅ |
| 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 |
| TEGL & MURERFIRMA STRØMBERG AS | 929011414 | ALVER |
| 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 |
| TEJ TAKST AS | 998418968 | FREDRIKSTAD |
| TEKAM TELECOM AS | 914823951 | TRONDHEIM |
| TEKFLOW AS | 932287579 | OSLO |
| TEKK AS | 884024242 | PORSGRUNN |
| TEKKEN AS | 932958252 | ÅLESUND |
| TEKKERN AS | 929343573 | ÅLESUND |
| TEKNACONSULT AS | 987806826 | SANDNES |
| TEKN. BYGGINGENIØR AS | 931687611 | NITTEDAL |
| TEKNI AS | 997218426 | STAVANGER |
| TEKNIKK BYGG OG TØMRERFIRMA AS | 913542738 | BÆRUM |
| TEKNISK INSTALLASJON AS | 891403682 | ASKER |
| TEKNISK RØRSERVICE AS | 921996527 | OSLO |