Bedrift J - Ellingsrud
- Jarvo Ltd
- Josfri AS
- Jarltronikk AS
- Jaroslaw Ustianowski
- Jensens Bedrift
- Jømne Photography
- Jensen Erling
- Johansen Rolf
- Jbm Roldan
- Jan Grimsrud
- Jp Kabia AS
- Joker Ellingsrudåsen
- Jaafar Transport
- Jose Yesquen
- Jönsson Murthi
- Johanessen Rolander
- Johansen Gestalt
- Julian Kirkeby Lysvik
- Jøndal & Hoff AS
- Jøndal & Hoff AS
- Jonna Gustafsson Holding AS
- John Robert Kolloen
- Juy Tan Vo
- Jennifer Uhunoma Uhnuagbon
- Jonas Nybakk Benyoub
- Jovar Jostein Værnes Dødsbo
- J.S. Renhold Justyna Sypniewska