Firma I - Dal
- Inthawongngoen
- Iselin Lande
- Ina Himle
- In-West AS
- Industrivegen 115
- Industrivegen 115
- Ivan Plucinsky
- Industriveien 57 AS
- Industriveien 57 AS
- InterPadel Letohallen
- IFAS Sport AS
- Instruktørmk Maria Kristiansen
- Idehus Romerike Holding AS
- Idehus Romerike Feltutbygging AS
- Irene Christin Holding AS
- In Touch Arne Sund
- Ingridas Negler Pleie Ingrida Duobiene