| 751 | Ion Meters | Company Product |
| 752 | Iodoform | Company Product |
| 753 | Investment Companies | Company Product |
| 754 | Iodine Quartz Lights | Company Product |
| 755 | Investment Securities | Company Product |
| 756 | Iodine | Company Product |
| 757 | Inventory Software | Company Product |
| 758 | Inventory Service | Company Product |
| 759 | Inverted Microscopes | Company Product |
| 760 | Intrusion Detection Systems | Company Product |
| 761 | Intruder Alarms | Company Product |
| 762 | Interpretation Service | Company Product |
| 763 | Internet Service Provider | Company Product |
| 764 | International Restaurants | Company Product |
| 765 | International Procurement Office | Company Product |
| 766 | Intravenous Solution Manufacturers | Company Product |
| 767 | Interior Decoration | Company Product |
| 768 | Interior Designers Supplies | Company Product |
| 769 | Integrators | Company Product |
| 770 | Interchangeable Signs | Company Product |
| 771 | Integrated Memory Circuits | Company Product |
| 772 | Integrated Linear Circuits | Company Product |
| 773 | Integrated Hybrid Circuits | Company Product |
| 774 | Integrated Circuit Manufacturing Materials | Company Product |
| 775 | Integrated Circuit Sockets | Company Product |
| 776 | Integrated Circuit Moulds | Company Product |
| 777 | Insurance | Company Product |
| 778 | Integrated Circuit Manufacturing Machines | Company Product |
| 779 | Insulation Materials | Company Product |
| 780 | Insulation Contractors' Equipment & Supplies | Company Product |