| Tekstil-Stova AS | Fonnes | 2008 |
| Tekstilen Trysil AS | Trysil | 2008 |
| Tekstilgruppen AS | Oslo | 2024 |
| Tekstilservice AS | Kongsvinger | 1999 |
| Tekstilservice Frosta AS | Frosta | 2025 |
| Tekstilshop AS | Kristiansand S | 2009 |
| Tekstore AS | Oslo | 2026 |
| Tekta Holding AS | Vikersund | 2021 |
| Tekzine Røsberg AS | Alta | 2025 |
| Tel-Rad AS | Gressvik | 1971 |
| Telapp AS | Oslo | 2015 |
| Telavåg Fiskemottak AS | Steinsland | 1990 |
| Telcall AS | Drøbak | 2002 |
| Tele & Data Produkter Da | Eidsvågneset | 1996 |
| Tele Broker AS | Jar | 1987 |
| Tele Produkter AS | Porsgrunn | 1990 |
| Tele Scan AS | Våler I Østfold | 1994 |
| Tele Soft AS | Haugesund | 1986 |
| Tele-Land Svakstrøm Norge AS | Trondheim | 2008 |
| Tele-Magasinet Da | Hønefoss | 2009 |
| Tele-Mat Ulefoss AS | Larvik | 2004 |
| Teleagaos AS | Askim | 2017 |
| Telecom & IT Megleren AS | Sandefjord | 2024 |
| Telecom Norden AS | Trondheim | 2002 |
| Telecom Product AS | Tønsberg | 1998 |
| Telecom Vest AS | Bergen | 2016 |
| Teleconsult Eiendom AS | Namsos | 2003 |
| Teleconsult Holding AS | Namsos | 1996 |
| Teleeksperten AS | Nesbru | 2022 |
| Telefona AS | Oslo | 2000 |
| Telefonshoppen Norden Nuf | Oslo | 2017 |
| Telefrukt AS | Gvarv | 1993 |
| Telefrukt Produsentlag SA | Gvarv | 1980 |
| Telegas Øst AS | Skien | 2022 |
| Telekiosken Bryn AS | Oslo | 2023 |
| Telekiosken Brønnøysund AS | Brønnøysund | 2010 |
| Telekiosken CC Vest AS | Oslo | 2006 |
| Telekiosken Drøbak AS | Drøbak | 1997 |
| Telekiosken Gran AS | Gran | 2003 |
| Telekiosken Gulskogen AS | Drammen | 1989 |
| Telekiosken Hønefoss AS | Hønefoss | 2004 |
| Telekiosken Innlandet AS | Hamar | 1989 |
| Telekiosken Kongsvinger AS | Kongsvinger | 2005 |
| Telekiosken Lambertseter AS | Oslo | 2008 |
| Telekiosken Levanger AS | Levanger | 2006 |
| Telekiosken Lillestrøm AS | Lillestrøm | 2002 |
| Telekiosken Metro AS | Lørenskog | 2003 |
| Telekiosken Moss AS | Moss | 1998 |
| Telekiosken Namsos AS | Namsos | 2004 |
| Telekiosken Oslo City AS | Oslo | 2000 |
| Telekiosken Raufoss AS | Raufoss | 2013 |
| Telekiosken Ski AS | Ski | 1999 |
| Telekiosken Steinkjer AS | Steinkjer | 2004 |
| Telekiosken Stovner AS | Oslo | 2012 |
| Telekiosken Super Store Sandvika AS | Sandvika | 2013 |
| Telekiosken Trøndelag AS | Trondheim | 2005 |
| Telekiosken Tveita AS | Oslo | 2012 |
| Telekiosken Verdal AS | Verdal | 2011 |
| Telekiosken Vinterbrosenteret AS | Vinterbro | 2009 |
| Telekom BTV AS | Drammen | 2015 |
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| Telemar Norge AS | Oslo | 1998 |
| Telemark Bil AS | Skien | 2026 |
| Telemark Bilutsalg AS | Stathelle | 2019 |
| Telemark Bolig Teknikk AS | Skien | 2012 |
| Telemark Dagligvare Edland AS | Bø I Telemark | 2014 |
| Telemark Dagligvare Åmot AS | Bø I Telemark | 2014 |
| Telemark Dekksenter AS | Porsgrunn | 2003 |
| Telemark Eigedom AS | Tinn Austbygd | 2015 |
| Telemark Handel AS | Bø I Telemark | 2025 |
| Telemark Kjemi AS | Porsgrunn | 2024 |
| Telemark Kjøkkensenter AS | Skien | 2026 |
| Telemark Lagerservice AS | Notodden | 2015 |
| Telemark Laser Avdeling Rogaland AS | Stavanger | 2025 |
| Telemark Lystbåtformidling AS | Porsgrunn | 2005 |
| Telemark Maskin Og Import AS | Rjukan | 2026 |
| Telemark Maskin Og Utstyr AS | Sannidal | 2024 |
| Telemark Miljøsand AS | Bø I Telemark | 2010 |
| Telemark Panorama Servicesenter AS | Åmli | 2025 |
| Telemark Spas AS | Skien | 2019 |
| Telemark Sport AS | Notodden | 2009 |
| Telemark Trade AS | Bø I Telemark | 1994 |
| Telemark Trade Company AS | Skien | 2004 |
| Telemark Trading AS | Vinje | 2021 |
| Telemark Traktor & Maskin AS | Bø I Telemark | 2003 |
| Telemark Urtebrænderi AS | Porsgrunn | 2008 |
| Telemark Ved AS | Porsgrunn | 2023 |
| Telemarkens Bokhandel AS | Notodden | 2010 |
| Telemarkhytter AS | Oslo | 2011 |
| Telemarklam AS | Fyresdal | 2020 |
| Telemarksporten Dagligvare AS | Porsgrunn | 1996 |
| Telematikk Invest AS | Nesttun | 2005 |
| Telemedisin AS | Nesttun | 1997 |
| Telesat Global Limited Nuf | Eidsvåg I Åsane | 2008 |
| Telesenteret Seljord AS | Seljord | 1999 |
| Telesentrum AS | Kvaløysletta | 1996 |
| Teleservice AS | Rygge | 1990 |
| Telespor AS | Asker | 2004 |
| Telesport AS | Seljord | 1990 |
| Teleste Norge AS | Porsgrunn | 1985 |