Bedrift J - Gamle Fredrikstad
- J/Sports AS
- Jonik AS
- Jkweb
- Jatoma AS
- Josefdaa Dadfar
- Johe Invest AS
- Jon Willassen
- Jbc Eiendom AS
- Jan Gravning
- Johannes Hafnor
- Joachim Schrader
- Johansen Media
- Jovima Invest AS
- Jaavall Multiservice
- Jøl Holding AS
- Jro Invest AS
- Jolanta Cieslukowska
- JP-Tak AS
- Jasmin Cerimagic
- Janjetovic Tico
- Jkr Holding AS
- Jm Prosjekt AS
- Jensen Byggtjenester AS
- Jan Gravning Veterinær
- Jon Christiansen Transport AS
- Jensen HMS-Verksted
- Jgv Management Vimbsons
- Jotun Reichhold Bedriftsidrettslag
- Jon Oddvar Arnesen
- Jadwiga Antonina Kielland
- Jabar Muhsin Ismael
- Jabar Muhsin Ismael
- Jens-Erik Berg
- Jens Øyvind Refsahl
- Jens Helge Refsahl
- June Kristin Andersen
- Jafs Begby Grill
- Jan Tore Gjøby
- Jensen Data Service
- Jord-Skruen.no Falkendal
- Jon Petter Gonzalez Lindberg
- Jejo Consulting Marius Heidenberg
- Jens Raymond Gillerstedt-Ørmen
- Jms Jozef Michal Sikierski
- Joker Langvik - Gml. Fredrikstad
- Jon G Karlsen Dødsbo
- Josefsen Konsulent og Rådgivningstjeneste AS
- Janek Consult Jan Erik Kroglund
- Jakt og Fiske M.A.Nagele
- Johannessen Svein B Sivil Ing Dødsbo