| Torshov Kolonial AS | Oslo | 2026 |
| Torshov Sport AS | Oslo | 1998 |
| Torshov Sport Bergen AS | Bergen | 1998 |
| Torshov Sport Invest AS | Oslo | 2009 |
| Torshov Sport Stavanger AS | Oslo | 2025 |
| Torshov Sport Tromsø AS | Tromsø | 2013 |
| Torshov Sportsfiske AS | Oslo | 2012 |
| Torshov Sysenter Da | Oslo | 1992 |
| Torshov Torg Blomster AS | Oslo | 2020 |
| Torsion Nordic | Oslo | 2004 |
| Torsken Handel AS | Torsken | 2024 |
| Torsken Kolonial Da | Torsken | 2001 |
| Torsnes AS | Sellebakk | 2019 |
| Torsnes Næringseigedom AS | Jondal | 2012 |
| Torsnesveien 207 Eiendom AS | Kolbotn | 2012 |
| Torso Vulkan AS | Oslo | 2010 |
| Torstein Risdal | Vinstra | 1976 |
| Torstrand Energistasjon AS | Larvik | 2022 |
| Torstvedt AS | Holmsbu | 1998 |
| Torstvedt Holding AS | Holmsbu | 2005 |
| Torvanger Retail AS | Oslo | 2026 |
| Torvbyen Gull Og Ur AS | Fredrikstad | 2026 |
| Torverk Industrial Doors Aktiebolag Nuf | Se-985 34 Torsby | 2026 |
| Torvestad Sport AS | Vormedal | 2007 |
| Torvet Mat AS | Halden | 2020 |
| Torvets Frukt Og Tobakk AS | Åndalsnes | 2017 |
| Torvgården Cafe & Design AS | Son | 2016 |
| Torvhallen Jensen Og Kristiansen Ans | Løten | 1990 |
| Torvli AS | Bergen | 2010 |
| Tos Norway AS | Oslo | 2024 |
| Tosammen Interiør AS | Kristiansand S | 2016 |
| Toscana Gaver & Interiør Ans | Kongshavn | 2004 |
| Toscano Ans | Nesøya | 2000 |
| Tosha's Bodyshop AS | Vøyenenga | 2006 |
| Toshiba Global Commerce Solutions (Nordic) AB Nuf | Se-17128 Solna | 2024 |
| Toso Norge AS | Stokke | 2021 |
| Tosra AS | Fornebu | 2005 |
| Tosy Holding AS | Oslo | 2005 |
| Total Beauty Care AS | Oslo | 1992 |
| Total Bil AS | Rælingen | 2024 |
| Total Consulting AS | Brumunddal | 1990 |
| Total Dezign AS | Støren | 2012 |
| Total Holding AS | Fredrikstad | 2025 |
| Total International Ltd | Church St W Hamilton 5-31 | 1995 |
| Total Nord Holding AS | Ørnes | 2019 |
| Total Packaging AS | Fredrikstad | 2001 |
| Total Proff AS | Rud | 2023 |
| Total Sikkerhet AS | Oslo | 2006 |
| Total Telekom AS | Oslo | 2009 |
| Total Telekom Holding AS | Oslo | 2012 |
| Totaldugnad AS | Vestnes | 2026 |
| Totalenergies Additives and Fuels Solutions | Fr-69700 Givors | 2025 |
| Totalenergies Ep Gass Handel Norge AS | Stavanger | 2005 |
| Totalenergies Fluids | 92800 Puteaux | 2014 |
| Totalenergies Marketing Norge AS | Stavanger | 1989 |
| Totalprofil AS | Greåker | 1989 |
| Totalservice Eidsvåg AS | Eidsvåg I Romsdal | 2026 |
| Totalsikring Da | Trondheim | 2001 |
| Totem AS | Oslo | 2003 |
| Toten Bensin AS | Lena | 2010 |
| Toten Catering & Lund Servicesenter AS | Kolbu | 2016 |
| Toten Dekksenter AS | Lena | 2000 |
| Toten Eggpakkeri AS | Lena | 2002 |
| Toten Elektrosenter AS | Raufoss | 2016 |
| Toten Libris AS | Kapp | 2011 |
| Toten Matbutikk AS | Lena | 2024 |
| Totex AS | Kråkerøy | 2019 |
| Toth Invest Solutions AB | Se-218 38 Bunkeflostrand | 2023 |
| Totlands Bokhandel AS | Nordfjordeid | 1989 |
| Totmo Da | Sandefjord | 1999 |
| Totorina AS | Drammen | 2024 |
| Totsa Totalenergies Trading SA | Stavanger | 2003 |
| Totême AB | Se-114 32 Stockholm | 2020 |
| Tou Steel Da | Tau | 2012 |
| Touch Produkter AS | Dal | 2015 |
| Touch Soft AS | Porsgrunn | 2010 |
| Touch-Up Da | Fredrikstad | 2008 |
| Toucheart AS | Stavanger | 2023 |
| Touchpoint Medical Nordic AS | Nesbru | 2004 |
| Touchpoint Workwear AS | Moss | 2024 |
| Tough Thumb AS | Aurskog | 2024 |
| Touratech Nordic | Se-531 40 Lidköping | 2017 |
| Touring Cars Norway AS | Tromsø | 2021 |
| Touristshop Tromsø AS | Tromsø | 2025 |
| Tourphotos AS | Tromsø | 2017 |
| Tova AS | Langevåg | 2014 |
| Tovar Holding AS | Oslo | 2017 |
| Tove De Langes Bunadsbånd AS | Vøyenenga | 2022 |
| Tove Mette's NC Ans | Sandvika | 1995 |
| Tove Trading AS | Oslo | 1992 |
| Toven Bruktbil Da | Eidsvåg I Romsdal | 2004 |
| Toves Garn & Brukskunst AS | Egersund | 2018 |
| Toves Trading AS | Arendal | 2020 |
| Toy AS | Tiller | 2020 |
| Toy-World AS | Sandnes | 2024 |
| Toyota Automated Logistics Netherlands B.V. Nuf | Oslo | 2026 |
| Toyota Bilia AS | Trondheim | 1999 |
| Toyota Hønefoss AS | Hønefoss | 1988 |
| Toyota Material Handling Sweden AB | Se-171 06 Solna | 2025 |
| Toyota Motor Europe Nv/Sa | Drammen | 2000 |