| Ice carvings and ice sculpture | | Ice-cream | | Idea agencies | |
| Identification systems | | Illuminated advertising | | Illumination design, planning, | |
| Illumination systems for image | | Illustration graphics | | Image advertising | |
| Image processing, digital | | Image processing, electronic | | Image treatment, digital | |
| Immobilien u baugewerbe, archi | | Immobilien u baugewerbe, bauge | | Immobilien u baugewerbe, bauha | |
| Immobilien u baugewerbe, baust | | Immobilien u baugewerbe, immob | | Immobilien u baugewerbe, makle | |
| Immobilien u baugewerbe, sonst | | Immobilienwesen | | Immobilienwesen informatikdien | |
| Immobilienwesen kauf u verkauf | | Immobilienwesen mit dem versic | | Immobilienwesen patentverwertu | |
| Immobilienwesen reinigungsgewe | | Immobilienwesen softwareentwic | | Immobilienwesen sonstige finan | |
| Immobilienwesen sonstiges vers | | Immobilienwesen unternehmensbe | | Immobilienwesen vermã¶gensverw | |
| Immobilienwesen vermietung u v | | Immobilienwesen vermittlung u | | Immobilienwesen vermittlung vo | |
| Immobilienwesen verwaltung von | | Immobilienwesen wirtschaftsprã | | Impact sound insulation materi | |
| Import agencies | | Imported tea | | Impregnating agents for castin | |
| Impregnating sprays | | In-house networks | | In-house radio installations | |
| Incentive travels | | Inclination spirit levels | | Incremental rotation encoders | |
| India paper | | Individual software | | Indoor fireworks | |
| Indoor swimming-pool construct | | Industrial advertising | | Industrial agencies | |
| Industrial air-cushion trucks, | | Industrial assembly | | Industrial bookbinding | |
| Industrial buildings, industri | | Industrial chemicals | | Industrial cleaning agents | |
| Industrial computers | | Industrial cooling plants | | Industrial design | |
