Firma I - Greåker
- Industriservice AS
- Isea AS
- Inscan AS
- Inneklima Konsulentene AS
- Idland Media
- Igare Forening
- Isis Forlag
- Inneklima Konsulentene AS
- IT-Loftet AS
- Ivar Kristianslund
- Idè AS Konkursbo
- Indivisible Norway
- Idè AS Konkursbo
- Isebakkeveien 103 AS
- Im Design AS
- Ifront Psykologtjenester Krabberød
- Irene Lundblads Musikk
- Ivo Goroskins Byggservice
- ISS Eiendomsdrift Østfold
- Inger-Johanne Berntsen
- Interiør og Budservice AS
- I P Holding AS
- Interaxon Trond Haugerud
- Image Data Ben Iveland
- Isaksen Alufiskebåt og Service
- Ingeniør og Murfirma Lars Aarum
- Idé Bad & VVS Robert Kapoun
- ISS Facility Services AS 460008 Nav Østfold