| Ta Lappen AS | Eiken | 2023 |
| Ta Lappen Stjørdal-Meråker Trafikkskole AS | Meråker | 2005 |
| Ta Seksualiteten Din Tilbake Da | Notodden | 2024 |
| Tacademy AS | Hølen | 2026 |
| Tactical Solutions AS | Søre Osen | 2025 |
| Tadme AS | Sandane | 2020 |
| Take the Reins - Equestrian Training AS | Moss | 2012 |
| Takst Skal Du Ha AS | Nesoddtangen | 2022 |
| Takstakademiet Norges Takstakademi AS | Oslo | 2023 |
| Takt Og Tone AS | Fjellhamar | 2012 |
| Talast Trafikkskole AS | Fagernes | 2021 |
| Talenter AS | Hundvåg | 2022 |
| Talenti AS | Oslo | 2026 |
| Tall Tree AS | Staubø | 2023 |
| Tallaksen Trafikkskole AS | Hornnes | 2019 |
| Tampere University Foundation | Fi-33100 Tampere | 2021 |
| Tana Golfsimulator AS | Tana | 2023 |
| Tana Montessoriskole AS | Tana | 2019 |
| Tangen Barnehage SA | Fjerdingby | 1989 |
| Tangen Trafikk AS | Molde | 2025 |
| Tangen Trafikkskole AS | Rakkestad | 2016 |
| Tango Akademiet AS | Porsgrunn | 2000 |
| Tank Life AS | Oslo | 2015 |
| Tankebanken AS | Odda | 2023 |
| Tankekraft AS | Fredrikstad | 2021 |
| Tantrasexolog AS | Steinkjer | 2023 |
| Tanum Fus Barnehage AS | Slependen | 1998 |
| Tanum Rideskole AS | Slependen | 2007 |
| Taora AS | Drammen | 2025 |
| Tapio's Brannservice AS | Tolvsrød | 2017 |
| Taraxacum Barnehage Stjørdal AS | Stjørdal | 2022 |
| Task Alliance AS | Oslo | 2004 |
| Tatino AS | Stavanger | 2014 |
| Taubanen Barnehage AS | Grua | 2016 |
| Taxiakademiet AS | Stavanger | 2021 |
| TB Finstad AS | Sandefjord | 2025 |
| TBC Holding AS | Kongsberg | 2022 |
| TBH Trafikkopplæring AS | Flekkefjord | 2020 |
| TBP AS | Finnsnes | 2013 |
| Td-Metoden AS | Mo I Rana | 2019 |
| Te Sø Holding AS | Askim | 2012 |
| Te-Am AS | Tønsberg | 2018 |
| Teaching for Life AS | Hakadal | 2019 |
| Team Aid Ans | Braskereidfoss | 2004 |
| Team Antonsen Trafikkskole AS | Fredrikstad | 2011 |
| Team Armpump AS | Rådal | 2026 |
| Team Aut. Trafikkskole AS | Deknepollen | 2015 |
| Team Berge AS | Rælingen | 2017 |
| Team Buskerud Skoyter Ltd Nuf | Oslo | 2017 |
| Team Ekko Da | Kristiansand S | 2001 |
| Team Felicia Da | Eidsvoll Verk | 2022 |
| Team Flex Ans | Laksevåg | 2024 |
| Team Iver AS | Asker | 2023 |
| Team Kolltveit Trafikkskole AS | Søreidgrend | 2026 |
| Team Lewel AS | Oslo | 2016 |
| Team Mission AS | Åkrehamn | 2025 |
| Team Rigi AS | Drammen | 2026 |
| Team Robust AS | Trondheim | 2024 |
| Team Trafikkopplæring AS | Nyborg | 2012 |
| Team Trafikkskole Arendal AS | Arendal | 2021 |
| Team Trafikkskole AS | Molde | 1985 |
| Team Trafikkskole AS | Molde | 2024 |
| Team Trafikkskole AS | Askim | 1994 |
| Team Trafikkskole Mandal AS | Mandal | 2016 |
| Team Trafikkskole Sandnes AS | Sandnes | 2002 |
| Team Trondheim BJJ AS | Trondheim | 2019 |
| Team Truckservice AS | Sem | 1989 |
| Team Vold Gunvaldsen AS | Lillesand | 2023 |
| Teamplayer AS | Skedsmokorset | 2023 |
| Teb Eiendom AS | Kongsberg | 2001 |
| Techlab AS | Mo I Rana | 2022 |
| Techtorget AS | Oslo | 2020 |
| Tee Time AS | Slependen | 2024 |
| Tegneri Talera AS | Sellebakk | 2018 |
| Teisentoppen, Frelsesarmeens Barnehage I Oslo AS | Oslo | 2020 |
| Teknisk Kurssenter AS | Oslo | 1994 |
| Teknisk Senter AS | Flekkefjord | 2014 |
| Telemark Toppidrett Ungdomsskole Porsgrunn AS | Porsgrunn | 2019 |
| Telemark Toppidrett Ungdomsskole Skien AS | Skien | 2015 |
| Tellnes Eiendom AS | Brattholmen | 2020 |
| Tellus Wine AS | Oslo | 2016 |
| Tempe Barnehage SA | Trondheim | 1999 |
| Tempo Trafikkskole AS | Oslo | 2007 |
| Temseveien Barnehage AS | Grimstad | 2006 |
| Tenk Fremtid AS | Tolvsrød | 2021 |
| Tenk Lofoten SA | Leknes | 1995 |
| Tennis 360 AS | Mandal | 2015 |
| Tennis-Trening.No AS | Våler I Østfold | 2024 |
| Teoriakademiet AS | Oslo | 2024 |
| Teoritentamen AS | Oslo | 2016 |
| Teracoach AS | Halden | 2025 |
| Terapivakten Kurs Og Kompetanse AS | Råholt | 2022 |
| Teresa Ho AS | Oslo | 2024 |
| Terese AS | Oslo | 2020 |
| Terje Bjøranger AS | Bjørkelangen | 2025 |
| Terje Overland AS | Oslo | 2002 |
| Terje Skjeldestad Keeperskule AS | Kaupanger | 2004 |
| Terje Solbakken Trafikkskole AS | Ulset | 2016 |
| Terkelsen Trafikkskole AS | Arendal | 1985 |
| Termo AS | Orre | 2026 |