Bedrift J - Hakadal
- Jonas Giacius
- June Witzøe
- Joakim Taraldsen
- Johnny Pedersen
- Jovian Creative AS
- Jernberg Ronny
- Jensen Morten
- James Wright
- Jelika Poolsawad
- Jaktslottet Raasjøen
- Jonathan Holding AS
- Joakim Magnus Taraldsen
- Jk Gullbergs Murerfirma
- Johnsen & Stovner AS
- Jozsef Adam Toth
- Julie Elisabeth Karlsen
- Jørgen Pedersen (Enk)
- Jörmungandr Viking Lag
- John Derek Scrowther
- Jo-Inge Rokne
- Jörmungandr Viking Lag
- Jehovas Vitner - Nittedal Menighet
- Joel Lluis Resina Sánchez
- Janek Montasje Janek Kondra