Bedrift J - Vigrestad
- Jærteknikk AS
- John Ueland
- Jonas Vigre
- Johnny Håland
- Josef Auklend
- Jakobsen Konsulenttjenester
- John Haugstad
- Jærutleie - Vold
- Jensen Brønnboring AS
- Jonas Skibstad
- Jæren Avtale AS
- Jonny Sandve
- Jms Anlegg AS
- Jon Heien
- John Skretting
- Jæren Betongpumping AS
- J. Stensland AS
- Jæren Friluftsterapi AS
- Joar Bygg AS
- Jærservice Holding AS
- Jæren Olje AS
- Jæren Kjøkken AS
- Jæren Maskinservice AS
- Jalo Invest AS
- Jærveien 152 AS
- Jan Oddvar Friestad
- Jan Anton Fjermestad
- Jan Inge Mattingsdal
- Jæren Betongpumping Holding AS
- Jæren Betongpumping Eiendom AS
- JT Kleven Invest AS
- J Hegelstad Holding AS
- Jæren Stein og Hage AS
- Jæren Bygg & Anleggsservice AS
- Jærutleie Innehaver Liv Anne Vold
- Jæren Bygg & Anleggs Service Oskar Mæland Bjorland