| Trygg Transport AS | Oslo | 2019 |
| Trygg Transport Eksperten AS | Bjorbekk | 2025 |
| Trygg Vei AS | Drammen | 2026 |
| Tryggbuss Transport AS | Oslo | 2026 |
| Tryggfrakt AS | Ås | 2025 |
| Trygghet Transport AS | Oslo | 2012 |
| Trygglink AS | Oslo | 2026 |
| Trygt Fram AS | Trondheim | 2026 |
| Trygt Og Ivaretatt AS | Lier | 2021 |
| Trysil Buss AS | Østby | 2019 |
| Trysil Kran & Transport AS | Skogbygda | 2024 |
| Trysil Taxi AS | Trysil | 2023 |
| Trøndelag Betongtransport AS | Heimdal | 2021 |
| Trøndelag Bilhjelp AS | Steinkjer | 2002 |
| Trøndelag Bilhjelp Trondheim AS | Trondheim | 2018 |
| Trøndelag Bud Og Transport AS | Leksvik | 2012 |
| Trøndelag Expressen AS | Trondheim | 2024 |
| Trøndelag Logistikk Og Transport AS | Støren | 2024 |
| Trøndelag Lostjenester AS | Storfosna | 2023 |
| Trøndelag Transport Nuf | Heimdal | 2023 |
| Trøndelag Vikarservice AS | Stjørdal | 2016 |
| Trønder Taxi AS | Trondheim | 1993 |
| Trønder-Distribusjon AS | Steinkjer | 2003 |
| Trønderbuss AS | Saupstad | 2016 |
| Trønderflytt AS | Malvik | 2011 |
| Trønderfrakt AS | Malvik | 1991 |
| Trøndertaxi Drift AS | Trondheim | 2026 |
| Trøndertransport AS | Trondheim | 2000 |
| TS Buss AS | Reinsvoll | 2020 |
| TS Drift Norway AS | Disenå | 2020 |
| TS Entreprenør AS | Varaldsøy | 2008 |
| TS Express | Pl-89311 Falmierowo | 2017 |
| TS Leveranse AS | Jakobsli | 2018 |
| TS Prosjekt & Logistikk AS | Rasta | 2025 |
| TS Shipping Invest AS | Haugesund | 1995 |
| TS Transport Verdal AS | Verdal | 2011 |
| Ts-Øst Holding AS | Hamar | 2007 |
| Tschudi Bulk Terminals AS | Kirkenes | 2009 |
| Tschudi Logistics AS | Oslo | 1994 |
| Tschudi Logistics Holding AS | Lysaker | 2006 |
| Tschudi Northern Logistics AS | Kirkenes | 2009 |
| Tschudi Shipping Company AS | Lysaker | 1992 |
| TSL Logistikk AS | Frogner | 2017 |
| TSL Transport SP. Z O.O. Nuf | 83-407 Lubiana | 2026 |
| TSP Services AS | Mosterøy | 2021 |
| TSS Eiendom AS | Borgenhaugen | 2024 |
| TST AS | Ski | 2005 |
| TSW Invest AS | Klokkarvik | 2005 |
| TT Express AS | Buvika | 2015 |
| TT Frakt AS | Tolvsrød | 2010 |
| TT Global Norway Limited Nuf | Holter | 2024 |
| TT Nord AS | Sjøvegan | 2025 |
| TT Nordic Logistics AS | Fjellhamar | 2026 |
| TT Shipping Consultant AS | Bødalen | 2004 |
| TT Spedisjon AS | Oslo | 2025 |
| TT Trucking GmbH | De-24955 Harrislee | 2012 |
| Tt.Transx AS | Sandnes | 2021 |
| Tta Taxifly Taxicopter Airtaxi Da | Oslo | 1998 |
| Tta Transport AS | Lørenskog | 2022 |
| TTB AS | Holter | 2019 |
| TTD Transport Tjenester Doan AS | Jessheim | 2025 |
| TTM AS | Lierskogen | 2018 |
| TTN Trucking AS | Frogner | 2011 |
| TTT Investeringer AS | Oslo | 2013 |
| TTV Drift AS | Hvam | 2018 |
| Tuddal Reefer AS | Oslo | 2014 |
| Tuft & Babul Da | Hønefoss | 2015 |
| Tuft & Bergheim Da | Hønefoss | 2024 |
| Tuft & Gullerud Da | Sokna | 2011 |
| Tuft & Iversen Da | Hønefoss | 2015 |
| Tuft & Johansen Da | Hønefoss | 2006 |
| Tuft & Langeland Da | Hønefoss | 2011 |
| Tuft & Lysaker Da | Hønefoss | 2014 |
| Tuft & Skranefjell Da | Hønefoss | 2025 |
| Tuft Transport AS | Nyborg | 1991 |
| Tufteland Multiservice AS | Bømlo | 2021 |
| Tuftin AS | Rauland | 2004 |
| Tuifly Nordic AB | Gardermoen | 1995 |
| Tullassistans Erik Strøm AB | Se-112 77 Stockholm | 2002 |
| Tullify AB Nuf | Se-411 39 Göteborg | 2024 |
| Tullut AS | Otta | 2015 |
| Tuma Transport AS | Holum | 2007 |
| Tunge Kjøretøy Trans Sentral AS | Oslo | 2020 |
| Tunge Spesialtransport AS | Randaberg | 2016 |
| Tungservice AS | Halden | 2018 |
| Tunneltransport Da | Borkenes | 1996 |
| Tunvoll Eiendom AS | Austmarka | 2012 |
| Tur Taxi AS | Oslo | 2022 |
| Turbilane AS | Langevåg | 2012 |
| Turbo Ekspress AS | Norheimsund | 2021 |
| Turbo Frakt AS | Oslo | 2023 |
| Turbuss Bergen AS | Ågotnes | 2013 |
| Turbuss Norwey Transport AS | Oslo | 2018 |
| TURBUSS1 AS | Stjørdal | 2009 |
| Turformidlingen AS | Ågotnes | 2016 |
| Turhus AS | Gol | 2000 |
| Turistbussen Ålesund AS | Ålesund | 2009 |
| Turkish Airlines Inc | Oslo | 2005 |
| Turlid Transport AS | Ål | 2023 |
| Turlid Transportservice AS | Aurland | 2008 |