| Teletjenesten AS | Oslo | 2018 |
| Telje Bygg AS | Harestua | 2022 |
| Tell Bergen AS | Bergen | 2011 |
| Tellesbø Karosseri AS | Surnadal | 1994 |
| Telsa Holding AS | Austrheim | 2017 |
| Temahud AS | Nesbru | 2012 |
| Temof AS | Drøbak | 2019 |
| Tempe Auto AS | Trondheim | 2000 |
| Tempe Dekk AS | Trondheim | 2021 |
| Tempe Frisør AS | Trondheim | 2024 |
| Tempel Riddare Orden Det Högsta Templet | Kristiansand S | 2004 |
| Temper'N AS | Skien | 2021 |
| Tenn Sauna AS | Porsgrunn | 2025 |
| Tenthai Massasje AS | Drammen | 2025 |
| Teologitavla AS | Vennesla | 2021 |
| Tepperent AS | Paradis | 2012 |
| Teranor AS | Laksevåg | 2024 |
| Terapimasasje AS | Bergen | 2022 |
| Terdal Bilservice AS | Bremanger | 2001 |
| Terex Equipment Limited Norge | Motherwell M1 15 Ry Scotland | 2004 |
| Terje Fredrikstad Verkstedtjeneser AS | Grua | 2023 |
| Terje Olsen Bil AS | Eina | 1991 |
| Terrengteknikk AS | Storforsheia | 2024 |
| Terum Nuf | Førde | 2007 |
| Terøy Vel | Søvik | 1988 |
| Tesla Problem Service 777 AS | Tranby | 2024 |
| Teslab AS | Aurskog | 2024 |
| Testtek Nordic AB | Se-141 31 Huddinge | 2019 |
| Tet Invest 1 AS | Hof | 2016 |
| Tett AS | Nesbru | 2005 |
| Tevo Bil Da | Verdal | 2002 |
| Texflow AS | Drammen | 2026 |
| Texnor Tepperenseri AS | Sande I Vestfold | 2025 |
| Textilia Group Norge AS | Tiller | 1922 |
| Textilia Group Nuf | Dk-2765 Smørum | 2026 |
| Textilia Norge AS | Tiller | 2003 |
| TFP AS | Bønes | 2026 |
| TH Bil AS | Stavern | 2014 |
| TH Motor AS | Kongsberg | 2016 |
| Th-Bilvask AS | Øydegard | 2025 |
| Th-Invest AS | Nøtterøy | 2017 |
| Thai 1 Helse & Velvære AS | Haugesund | 2022 |
| Thai Aroma Massasje AS | Oslo | 2017 |
| Thai Klinikk AS | Trondheim | 2017 |
| Thaimassasje Lillehammer AS | Lillehammer | 2021 |
| The a Lounge AS | Oslo | 2024 |
| The Barber Club AS | Jessheim | 2024 |
| The Barber Club Jessheim Da | Jessheim | 2020 |
| The Barber Club Lørenskog Da | Lørenskog | 2024 |
| The Barber Peak AS | Stranda | 2025 |
| The Barber Shop AS | Sandvika | 2020 |
| The Beauty Garden AS | Arnatveit | 2024 |
| The Beauty Salon AS | Brennåsen | 2021 |
| The Blush AS | Oslo | 2025 |
| The Brow AS | Åros | 2021 |
| The Change Fotterapi AS | Drammen | 2022 |
| The Circus Club AS | Oslo | 2019 |
| The Club House AS | Asker | 2024 |
| The Coconut AS | Lørenskog | 2023 |
| The Dogs Barber AS | Oslo | 2026 |
| The Empire Mirvan AS | Stavanger | 2022 |
| The Face Queen AS | Bergen | 2021 |
| The Fashion Archives & Friends Da | Oslo | 2017 |
| The Final Touch AS | Sofiemyr | 2025 |
| The Future Is Fungi AS | Oslo | 2023 |
| The Glamsisters AS | Vinterbro | 2025 |
| The Golden Barber AS | Oslo | 2021 |
| The Golden Hands AS | Horten | 2020 |
| The Hair AS | Larvik | 2017 |
| The Hairfactory AS | Vennesla | 2013 |
| The Hairy Kingdom AS | Mauseidvåg | 2024 |
| The Holmens Velvære AS | Hagan | 2024 |
| The International Society for Professional Innovation Management Ltd Nuf | Bl4 9Tp Bolton | 2024 |
| The International Society for the Study of Fatty Acids and Lipids (Issfal) Nuf | Washington, Dc 20009 | 2026 |
| The Kitchen by Christophe AS | Stavanger | 2020 |
| The Lash Studio AS | Oslo | 2020 |
| The Leader AS | Trondheim | 2024 |
| The Light AS | Oslo | 2018 |
| The London Barber AS | Bodø | 2017 |
| The Look AS | Oslo | 2024 |
| The Man Cave Barber Lounge AS | Kristiansand S | 2018 |
| The Nail Lab AS | Oslo | 2025 |
| The Nail Lounge AS | Kongsvinger | 2024 |
| The Navigators | Oslo | 2000 |
| The Open Group L.L.C. | Boston Massachussets 02111 | 2026 |
| The Project AS | Flatåsen | 2026 |
| The Room Norge AS | Skien | 2018 |
| The Scandinavian Tire & Rim Organization | 753 36 Uppsala | 2006 |
| The Seafood Innovation Cluster AS | Bergen | 2014 |
| The Skin Clinic Bodø AS | Bodø | 2023 |
| The Suite AS | Oslo | 2017 |
| The Sun AS | Oslo | 2023 |
| The Victory Barbershop AS | Oslo | 2025 |
| The Well AS | Sofiemyr | 2014 |
| Thea Katarina Bråten AS | Rygge | 2021 |
| Thea Nails & Spa AS | Skjetten | 2024 |
| Thea Terapi Fotpleie & Massage AS | Borkenes | 2020 |
| Theashaab Aps | Dk-9210 Aalborg Sø | 2011 |
| Thechic AS | Stavanger | 2025 |
| Theglamsisters Da | Oslo | 2024 |