Bedrift J - Langhus
- Jegermeg AS
- Jonstøl Invest AS
- Joker Langhus
- Jonas Platac
- Jnt Holding AS
- Jo Gunnarshaug
- Jv Media AS
- Juel Holding AS
- Jomfruland Hytteeierforening
- Jordbærstien Velforening
- Jettegryta Barnehage
- Jobbesentralen Jobber ANS
- Joanna Wansacz
- Julie Pavola
- Jabi Holding AS
- Jr Rørservice AS
- Jeremiassen Ivar
- Johnsen Knut B
- Jernbanegata 3 Porsgrunn AS
- Jan Clemens Carlsen
- John Rune Knalstad
- Jørgen Røgeberg Consulting
- Justine Pliszka Renhold
- Jernbanegaten 6 Kongsvinger AS
- Johansen Ole Emil
- June Vibeke Berntsen
- Jeanett H Johnsen
- Johansen Sofie-Brekke
- Jernbanegata 1 Eiendom AS
- Je Rindli Holding AS
- Janke Production Ellingsen
- Jessica Tellander Albertsen
- John Johnsen Invest
- J Hansen Vaskehjelp
- Jurist Lene Berggraf-Larsen
- Jan-Egil Engnes Illyria
- Jaupi Vina Hysen Rør
- Jan Egil Lund Engnes
- Joi Design Jan-Ove Iversen
- Josteins Teater og Tale Jostein Mellegård Jakobsen