Bedrift J - Fornebu
- Jabor AS
- Jobreg AS
- Jfm AS
- Jbbc AS
- Jernia
- Jannicke Sandvik
- Jm Eiendomsutvikling AS
- Johnsen Siri
- Janima Consult AS
- Jozef Kurnyta
- Jessen Management AS
- Jenikov Industries Ltd
- Jens Lomsdalen
- Jelstrup Kommunikasjon
- Jbr Holding AS
- Johannesen Egil
- Juul Bilformidling AS
- Jenikov Industries Ltd
- Jardar Holding AS
- Julius Pocius
- Jon Anders Fløistad
- Jan Sigurd Horn
- Jogi Joachim Hjerpaasen
- Jarenga Barnehage - 23330
- Jan Rolf Berstad
- Joakim Holand Consulting
- Juniper Networks Norway AS
- Juniper Networks Norway AS
- J.D. Stigar Invest AS
- Jusit Advokat AS Ottar Hovind
- Joe & The Juice
- Joachimsen Fornebu Galleri og Rammeverksted
- Jadgar Transport Jadgar Haji Ahmed