Bedrift T - Alfaset
- Trus AS
- Tefor AS
- Tronslien AS
- Trappemakeren AS
- Timevat AS
- Totalkonstrukt AS
- Trappemakeren AS
- Testkort Teknisk
- Tosy Holding AS
- Team Volla
- Tolk Azagouagh
- Torvik Verksted AS
- Tre-de AS
- Trygghet Transport AS
- Tom Tobiesen AS
- TESS Sørøst AS
- Tunnl Invest AS
- Transport Trappemakeren
- The Fireplace AS
- Techstil AS Konkursbo
- Techstil AS Konkursbo
- Trekkspelar Taklo
- Torvik Auto AS
- Team Ligaard
- Twn Holding AS
- Teletec Connect AS
- Taksenteret Oslo AS
- Tinex Group AS
- Transportsentralen Oslo AS
- TESS Oslo
- The Nielsen Way AS
- Tse-Skjelsvik 2 AS
- Transportsentralen Oslo Holding AS
- Thommassen & Ormestad AS
- Transport og Sveiseservice
- Trio Vedlikehold Kolstad
- Tittutveien 4 Eiendom AS
- Thermo King Norge AS
- Tittut Forlag Eide
- Thermo King Norge AS
- Transportsentralen Oslo Eiendom AS
- Transportarbeiderklubben Postnord Oslo
- Tore Ligaard avd Oslo
- Tømrermester Øivind Frivoll AS
- Thom Hansen Holding AS
- Transportsentralen Oslo Budtjenester AS
- The North Bridge Group AS
- Top-Toy Norge AS Konkursbo
- Top-Toy Norge AS Konkursbo
- Toyota Oslo AS Avd Verksted Breivollveien
- Toyota Oslo, Skadesenter Alnabru
- TESS Alnabru - Regionssenter Øst
- Toyota Oslo, Bruktbilsenter Alnabru
- Thilakasiri Himidumage Chinthaka Nadeesh
- Tonje Koteng Bavaria Oslo
- Toyota Oslo AS - Skadesenteret Geir Øyen
- Thermo King Norge Oslo Kjøleservice AS
- TESS øst AS Avd Verkseier Furulundsv Oslo
- The Best Is Yet To Come AS