Firma J - Bekkestua
- Jegerberget AS
- Jumpking AS
- Jodin AS
- Jott AS
- Juniorligaen AS
- Jagoda AS
- Joboco AS
- Joco AS
- Julie Øyan
- Jansen Media
- Jensen Kultur
- Juterud Invest AS
- Juliette Sørensen
- Johan Björkegren
- John Rui A/S
- Jojaju Invest AS
- Jacek Borg AS
- Jackobsen Marit
- Jama Ali
- Jbordal Holding AS
- Jone Engh
- Jezior Bygg
- Jee Invest AS
- Janska Invest AS
- Jakob Gunby
- Jan Fosse
- Jobbtelefon Olithe
- Jørgensen Consult
- Jernia Bekkestua
- Joker Nadderud
- Jfn Holding AS
- Johnny Karlsen AS
- Just Food DA
- Jh Eiendomsconsult AS
- Jon Burum
- Justyna Zuchowska
- Jovang Styling
- Justad Service AS
- Jeje Internett Service ANS
- Jan Anders Jönsson
- Jannicke Skjoldhammer-Jansen
- Jon Maximilian Sandbu
- Jan Roger Øren
- Joheim Cluster Software
- Jor Finn Evert
- Julie Øyan Andersen
- Jm Maciejewski Bygg
- Johan Peter Amb
- Justmusic Jostein Urnes
- Jahn Koren Produksjon
- Jan Thoralf Brodtkorb
- Jennie-Ann Hansson
- Just Shine Kwasniak
- Julie Listhaug Eriksen
- Jølstad Begravelsesbyrå Bekkestua
- John Douglas Surman
- John Kåre Stenwig
- Jon Terje Thoresen
- Justa Assistanse Galazka
- Jeanette Fagerli-Quaino
- Jack William Johnsen
- Jmb Berging & Transport AS
- Jorunn Kaiander Sundgot Borgen
- Janicke L Rasmussen Styrerådgivning
- J A Ringdal Consult
- Jehovas Vitner - Sandvika Menighet
- Jehovas Vitner - Bekkestua Menighet
- Justad Service Kent Justad
- Jonlund2tjenester Jon Grøn Lund
- Jws Bygg Joanna Slowik
- Jens H. Arnoldsen - Landsbyarkitektene AS
- Johannes Erik Gaetano Schantz
- Jette M K Ruud Design
- Jønnes Consult Morten Kloster-Jensen
- John Andersens Legat for Idretten
- J.T.J KONTROLL BYGG
- Jennie Jensen Personlig Trening og Ernæringsrådgivning
- Jonas Wasa Musikk Bjørn J Aasheim
- J L Paper Chemicals Jan Larsen
- Jesu Kristi Kirke Av Siste Dagers Hellige
- J & J Skiba Transport og Logistikk