| 88219 | Incandescent gas mantles manufacturing services | |
| 88756 | Incandescent lamps, fixtures and bulbs manufacturing services | |
| 91280 | Incarceration, administrative services related to the operation of places of | |
| 91280 | Incarceration, operation of places of | |
| 44740 | Incendiary shells or cartridges | |
| 03219 | Incense (natural gum resin) (excl. prepared) | |
| 37193 | Incense burners, of glass | |
| 35331 | Incense, prepared | |
| 94322 | Incineration, disposal of hazardous liquid waste by means of | |
| 94322 | Incineration, disposal of hazardous solid waste by means of | |
| 94333 | Incineration, disposal of non-hazardous waste by means of | |
| 88765 | Incinerators manufacturing services | |
| 43420 | Incinerators, non-electric | |
| 48211 | Inclinometers | |
| 91340 | Income assistance programmes for families with dependent children, administrative services related to | |
| 91340 | Income assistance programmes for families with dependent children, support services related to the operation of | |
| 91340 | Income assistance programmes for households, administrative services related to | |
| 91340 | Income assistance programmes for households, support services related to the operation of | |
| 91138 | Income controls, administrative services related to | |
| 82221 | Income statements, compilation of | |
| 65219 | Incomplete vessels, towing of, on coastal waters | |
| 65229 | Incomplete vessels, towing of, on inland waters | |
| 65219 | Incomplete vessels, towing of, on transoceanic waters | |
| 44193 | Incubators, poultry | |
| 38963 | Incunabula (i.e., antique books) | |
| 34110 | Indene | |
| 48262 | Indentation machines for testing metal hardness | |
| 84420 | Independent journalists, services rendered to audio-visual media by | |
| 84410 | Independent journalists, services rendered to printed media by | |
| 84420 | Independent press cameramen, services rendered to audio-visual media by | |
| 84410 | Independent press photographers, services rendered to printed media by | |
| 32129 | Index Bristol, uncoated | |
| 48490 | Index discs for clocks or watches | |
| 48490 | Index staffs for clocks or watches | |
| 03219 | India copal | |
| 03219 | Indian gum | |
| 38560 | Indian outfits, toy | |
| 23180 | Indian pastry mix | |
| 46929 | Indicator panels, electric (excl. those for motor vehicles or traffic control) | |
| 46929 | Indicator panels, electric, for railway stations, for showing arrival and departure data | |