Bedrift I - Rolvsøy
- Inlet AS
- Ilia AS
- Ipoa AS
- Initiativ Hauge
- Initiativ Hauge
- Imte Eiendom AS
- Inlet AS Løpende
- Ice Kundeservice
- Interline Europe AS
- Installatøren Gruppen AS
- Installatøren Fredrikstad AS
- Ingeniørfirma Big AS
- IKM Inspection AS
- Infocus International Bv
- Issam Alhassan
- Irene Skår
- Invest-Auto AS
- Ifratelli Eiendom AS
- Iversby Holding AS
- Ilj Holding AS
- Iversby Eiendom AS
- Inge Schjerpen
- Innova Abrahamsen
- Idrettens Studieforbund Østfold
- Iceme Nordic Hage
- Idris Arif Abdullah
- Inkludering for alle
- Inkludering for alle
- Influencer Services Fossaas
- Ibeta Håkon Sandmark
- Ingerid Grimsæth Yoga
- Inger Hegna Gabrielsen
- International Bzt Companys Online AB
- Igniva Christian Seilø Torgersen
- Idg Fredrikstad Comunity Hub
- Idg Fredrikstad Comunity Hub
- Import & Export Hamzaoui
- Indica Mihi - Fortell Meg
- Irmina Renhold Irmina Dauskurtiene
- Indica Mihi - Fortell Meg
- ISS Facility Services AS Avd Transcom Fredrikstad
- Iggys Tattoo - Marius Sten Larsen