- Institute of Geography and Statistics
- Indoor cycling
- Iron and steel store
- Infiniti dealer
- Information bureau
- Indoor snowcenter
- Industrial gas supplier
- Industrial engineers association
- International school
- Industrial framework supplier
- Insulator supplier
- Ice hockey club
- Ice skating club
- Ice skating instructor
- Industrial chemicals wholesaler
- Insolvency service
- Institute
- Industrial door supplier
- Interior door
- Infectious disease physician