| Taxitaxi AS | Korgen | 2013 |
| Taxitjeneste AS | Heimdal | 2018 |
| Taxitur Kolbotn AS | Sofiemyr | 2025 |
| TB Shipping & Forwarding AS | Sandnes | 2002 |
| TB Sjåfør Og Transport AS | Sande I Vestfold | 2022 |
| TB Sjåførservice AS | Bjoa | 2024 |
| TB Trans West Da | Odda | 2002 |
| TB Transport AS | Tobøl | 1985 |
| TB. Holding AS | Løten | 2014 |
| TBG Transport AS | Biri | 2019 |
| TBM AS | Kråkerøy | 2006 |
| TBM Transport AS | Fagerstrand | 2021 |
| TBN Frakt AS | Bjørnevatn | 2025 |
| TBN Transport AS | Hesseng | 2010 |
| TC Andersen Transport Ans | Borgenhaugen | 1995 |
| TCT AS | Oslo | 2020 |
| TD Johansen AS | Tennevoll | 2023 |
| TD Tank AS | Tromsø | 2026 |
| TD Williamson Inc | Ok 74101-2299 | 2009 |
| Tdi 24H Criticalexpress AS | Skien | 2005 |
| TDL Invest AS | Hosle | 2007 |
| Tea Transport AS | Roverud | 2013 |
| Team Beredskap Sp/F | Stavanger | 2007 |
| Team Brokers AS | Oslo | 2012 |
| Team Bussreiser AS | Eidsvoll | 2017 |
| Team Eg AS | Isfjorden | 2011 |
| Team Jonassen AS | Tønsberg | 2013 |
| Team ST Transport Da | Gjøvik | 1999 |
| Team Tour AS | Drammen | 1975 |
| Team Tour Eiendom AS | Drammen | 2002 |
| Team Trans Ans | Brumunddal | 1989 |
| Team Vikings AS | Skjåk | 2018 |
| Teamfrakt AS | Holter | 2018 |
| Tebe Holding AS | Sandnes | 2005 |
| Technipfmc Plsv B.V. | 1077Xv Amsterdam | 2022 |
| Technipfmc Plsv C.V. | 1077Xv Amsterdam | 2022 |
| Ted Transport AS | Biri | 2021 |
| Teekay Chartering Ltd | Stavanger | 2005 |
| Teekay Shipping (Glasgow) Ltd | G2 5Nj Glasgow | 2007 |
| Teekay Tankers Chartering Pte. Ltd. | Sg-Singapore 049145 | 2023 |
| Tegeatech AS | Bjørndalstræ | 2006 |
| Teie Parkering AS | Tønsberg | 2022 |
| Teigaas Transport AS | Trondheim | 2022 |
| Teige Service & Logistikk AS | Hareid | 2025 |
| Teigen & Buen Transport AS | Flesberg | 2026 |
| Teighler Transport & Service AS | Froland | 2019 |
| Teinevik Terminalen AS | Fonnes | 2013 |
| Teistevoll Trucking AS | Sortland | 2025 |
| Tek Sin AS | Oslo | 2009 |
| Tek Særs AS | Oslo | 1997 |
| Tek-Utvikling AS | Horten | 2019 |
| Tekbit AS | Lillehammer | 2025 |
| Tekho AS | Hafrsfjord | 2015 |
| Tekin AS | Sola | 2026 |
| Tekle Drosje&Transport AS | Haugesund | 2023 |
| Tekniske Konsulenttjenester AS | Nittedal | 2017 |
| Tele Trans AS | Porsgrunn | 2004 |
| Tele-Frakt AS | Fyresdal | 2000 |
| Telecom Holding 3 AS | Oslo | 2016 |
| Telemark Bilruter AS | Seljord | 1972 |
| Telemark Bilruter Buss AS | Seljord | 1998 |
| Telemark Bilruter Eigedom AS | Seljord | 2017 |
| Telemark Distribusjon AS | Oslo | 1971 |
| Telemark Flytteservice Ans | Skien | 2001 |
| Telemark Gods AS | Seljord | 2026 |
| Telemark Gods Og Miljø AS | Seljord | 2026 |
| Telemark Miljøservice AS | Seljord | 2026 |
| Telemark Resirk AS | Seljord | 2026 |
| Telemark Taxi AS | Skien | 2004 |
| Telemark Trafikktjenester AS | Notodden | 2026 |
| Telemark Transport Da | Ulefoss | 1999 |
| Telemark Transportservice AS | Seljord | 2008 |
| Telemark Tømmer AS | Åmli | 2026 |
| Telemarkskanalen Skipsselskap AS | Dalen | 2007 |
| Teleport AS | Tromsø | 2023 |
| Telhaug Transport AS | Eiken | 2009 |
| Tellus Logistics AS | Tananger | 2013 |
| Tema Havfiske Ans | Stavern | 2000 |
| Temm Holding AS | Mo I Rana | 2021 |
| Tempo Transport AS | Heimdal | 2010 |
| Tempo Transport Group AS | Oslo | 2024 |
| Tenco A/S | Oslo | 1956 |
| Tenden Brygge AS | Stryn | 1993 |
| Tenden Varetransport Da | Bryggja | 2009 |
| Tendenes Transport AS | Hommersåk | 2026 |
| Tendent AS | Lørenskog | 2023 |
| Tengesdal Maskintransport AS | Bjerkreim | 2025 |
| Tennebekk Transport AS | Rådal | 2010 |
| Terax Transportservice AS | Hommelvik | 2014 |
| Terje Auby Transport Og Trelast AS | Kvelde | 2012 |
| Terje Buset Transport AS | Fagernes | 1998 |
| Terje Hannevold AS | Hof | 2012 |
| Terje Jacobsen AS | Kongsvinger | 2015 |
| Terje Melby Transport AS | Degernes | 2011 |
| Terje Mydland Transport Ans | Hundvåg | 1988 |
| Terje Nullmeyer AS | Jessheim | 2026 |
| Terje Paulsen Holding AS | Ålesund | 2025 |
| Terje Paulsen Transport AS | Ålesund | 2025 |
| Terje Romarheim AS | Hjelmås | 2013 |
| Terje Rustand Transport AS | Lampeland | 2019 |