| 811 | International Restaurants | Company Product |
| 812 | International School | Company Product |
| 813 | Internet Hosting | Company Product |
| 814 | Internet Marketing Service | Company Product |
| 815 | Internet Service Provider | Company Product |
| 816 | Interpretation Service | Company Product |
| 817 | Interval Timers | Company Product |
| 818 | Interview | Company Product |
| 819 | Intimate Wash | Company Product |
| 820 | Intravenous Solution Manufacturers | Company Product |
| 821 | Intrinsic Safety | Company Product |
| 822 | Intrinsic Safety Interface Controls | Company Product |
| 823 | Intrinsically Safe System | Company Product |
| 824 | Intrinsically Safe Wireless Pressure Sensors | Company Product |
| 825 | Intruder Alarms | Company Product |
| 826 | Intrusion Detection Systems | Company Product |
| 827 | Intrusion Detectors | Company Product |
| 828 | Inventory Service | Company Product |
| 829 | Inventory Software | Company Product |
| 830 | Inverta Push | Company Product |
| 831 | Inverted Microscopes | Company Product |
| 832 | Inverter | Company Product |
| 833 | Inverter Air Compressors | Company Product |
| 834 | Inverter Batteries | Company Product |
| 835 | Inverter Control Cards | Company Product |
| 836 | Inverter Drawn Arc Stud Welder | Company Product |
| 837 | Inverter Drives | Company Product |
| 838 | Inverter Frequency Repair | Company Product |
| 839 | Inverter Generator | Company Product |
| 840 | Inverter Keypads | Company Product |