| The Fine Loom AS | Oslo | 2026 |
| The Fuel Company Norway | 7556 Pe Hengelo | 2017 |
| The Future AS | Oslo | 2016 |
| The Gentlemen AS | Oslo | 2024 |
| The Gift Box AS | Tromsø | 2026 |
| The Golden Shower Beauty AS | Oslo | 2024 |
| The Good Life Agency AS | Oslo | 2017 |
| The Grape Escape AS | Ålesund | 2025 |
| The Gym Industry AS | Sandvika | 2022 |
| The Haciendas-Company AS | Stavanger | 2012 |
| The Hair Heaven Studio AS | Gjerdrum | 2025 |
| The House Company Sweden AB | Se-647 30 Mariefred | 2024 |
| The House of Cognac AS | Grimstad | 1998 |
| The Hut.Com Limited | Manchester M90 3Dq England | 2016 |
| The Hylens AS | Tynset | 2021 |
| The Identity Paper AS | Haslum | 2017 |
| The Identity Pharma AS | Haslum | 2017 |
| The Island Rum Company AS | Oslo | 2012 |
| The Juice Plus Company Aps | 1267 | 1998 |
| The Junction AS | Drammen | 2015 |
| The Kop Invest AS | Trondheim | 2005 |
| The Lab Retriever AS | Billingstad | 2020 |
| The Light Group AS | Kristiansand S | 2014 |
| The Line Atelier AS | Stavanger | 2017 |
| The Little House & Company Da | Drammen | 2015 |
| The Lost Arcade AS | Kristiansand S | 2026 |
| The Marcee AS | Rådal | 2022 |
| The Net a Porter Group Italy S.R.L. | It-20143 Milano | 2026 |
| The Never Ending AS | Oslo | 2023 |
| The Next Holding AS | Høvik | 2020 |
| The Nielsen Way AS | Oslo | 2011 |
| The Nordic Chemical Agency AB Nuf | Se-442 75 Lycke | 2025 |
| The Nordic VR Company AS | Larvik | 2017 |
| The North Bridge Group AS | Oslo | 1996 |
| The Nuts Company AS | Oslo | 2007 |
| The Oak Tree AS | Høvåg | 2024 |
| The Oslo Food Company AS | Oslo | 2010 |
| The Oslo Studio AS | Oslo | 2024 |
| The Outdoor Agency AS | Øyer | 2021 |
| The PB Company AS | Sandnes | 2021 |
| The Pearl AS | Bødalen | 2023 |
| The Pickpack Company AS | Blommenholm | 2000 |
| The Plant Makery Foods AS | Oslo | 2021 |
| The Player AS | Oslo | 1997 |
| The Player City AS | Oslo | 1998 |
| The Product Oslo AS | Oslo | 2007 |
| The Purchasing Group AS | Heggedal | 2014 |
| The Rebirth AS | Oslo | 2025 |
| The Robbins Company | Charlottenlund | 2013 |
| The Shade AS | Lysaker | 2022 |
| The Shock Factor AS | Alta | 2021 |
| The Sign on Company AS | Oslo | 1999 |
| The Sky Is Not the Limit AS | Stavanger | 2021 |
| The Spice Box Company Da | Oslo | 2008 |
| The Spirits Merchant AS | Oslo | 2022 |
| The Studio by Crush AS | Haugesund | 2020 |
| The Swatch Group (Nordic) AB Nuf | Oslo | 2000 |
| The Sweet Grape AS | Oslo | 2022 |
| The T Company AS | Oslo | 2003 |
| The Tap Company AS | Oslo | 2019 |
| The Tasty Coconut Company | Dk-2950 Vedbæk | 2020 |
| The Tiny Wine House AS | Fjerdingby | 2023 |
| The Troll Shop AS | Oslo | 2016 |
| The Tuv AS | Rasta | 2005 |
| The Unique AS | Oslo | 2020 |
| The Valspar (UK) Corporation Ltd | Solbergelva | 2001 |
| The Vanilla Remedy AS | Sandefjord | 2020 |
| The Weddell Trading Company AS | Oslo | 1999 |
| The Wine Merchant AS | Oslo | 2020 |
| The Winegroup AS | Kristiansand S | 2018 |
| Thea Nordic AB Filial Norge Nuf | Trollåsen | 2011 |
| Thea Træet AS | Fitjar | 1974 |
| Theben AG | Bergen | 2017 |
| Thefootballidiots Da | Hundvåg | 2023 |
| Theis Vine | Dk-2740 Skovlunde | 2003 |
| Thelle Teknologi AS | Vesterøy | 2016 |
| Thelma & Molli Ans | Sola | 2011 |
| Thema International Norge Ans | Rygge | 2001 |
| Themelle AS | Volda | 2023 |
| Themo AS | Oslo | 2020 |
| Theoleo AS | Oslo | 2022 |
| Theoliv AS | Spydeberg | 2024 |
| Theorema Scandinavia AB | Se-280 64 Glimåkra | 2004 |
| Theosol AS | Stavanger | 2023 |
| Theotek AS | Skien | 2025 |
| Theratrade AS | Lillesand | 2012 |
| Therese Folland Dyrstad AS | Kristiansund N | 2019 |
| Therese Kaulum AS | Hamar | 2014 |
| Thereses Torghandel AS | Harestua | 2026 |
| Theresesgate Butikkhandel AS | Oslo | 2018 |
| Theresesgate Dagligvarer AS | Oslo | 2017 |
| Therkelsen Maskin AS | Hvittingfoss | 2016 |
| Therma Elektro AS | Sandnes | 2015 |
| Therma Pipe Aps | Ringebu | 1999 |
| Thermadog AS | Trondheim | 2026 |
| Thermex Scandinavia AS | Tønsberg | 1968 |
| Thermia Norge AS | Trollåsen | 2018 |
| Thermo AS | Slemmestad | 1992 |
| Thermo Control Nord AS | Harstad | 1988 |
| Thermo Electron (Management Services) Limited | Wa14 2Dt Cheshire | 2020 |