Bedrift I - Kjelsås
- Itmatter AS
- Innovatom AS
- Ingrus AS
- Ilar Ltd
- Insnx AS
- Inconnect AS
- Isblikk AS
- Irrupt AS
- Iryna Kalinku
- IKT Oslo AS
- Imingen Kristin
- Idekontoret Nettsmia ANS
- Interiørinspirasjon Parsasalehi
- Isaksen Feliks
- Ida Kural
- Idil Mohammed
- Ingvild Bakke
- Inno Tjelta
- Islandur Rør AS
- Inste Kneppen AS
- IC Invest AS
- Its Tomorrow AS
- Inger Fretland
- Ingun Moren
- Image Photo AS
- In2wine Tunestveit
- Ingjerd Guldal
- Isabelle Holding AS
- Industrigaten 34 AS
- if forsikring
- Inger Oustad
- Ingjerd Østtveit
- Incus Holding AS
- Ipsum Eva Storbråten
- Isaksen & Datter
- Ihb Jansen Terapi
- Inga Staal Jenset
- Ida Marie Sandvand
- Inger Sverreson Holmes
- Ida Eides Minnefond
- Ion Mascautan Konkursbo
- Ion Mascautan Konkursbo
- Ida Eides Minnefond
- Ing. Øivind Holum
- Ingvild Hammervoll Kunstpuls
- Ida Elisabeth Krogstad
- Interiørdesigner Tove Meldgaard AS
- Invtorgersen Arild Anda Torgersen
- Ingolf Ruuds vei 8 AS
- Ivan Studio Ivan Aneliev Ivanov
- Inntrykk og Uttrykk Stein Thoresen
- Inter- Mont Robert Marcin Baranowski
- Id Form Igor Francesco Paulo Di Tota
- Inger-Johanne Aarseth Lege Spesialist i Psykiatri