| SIC Code | Business or Product | Registrants |
|---|
|  | | |
| 2754 | Imprinting: gravure | * |
| 2835 | In vitro diagnostics | 206 |
| 2835 | In vivo diagnostics | 206 |
| 2835 | In vivo radioactive reagents | 206 |
| 3822 | In-built thermostats, filled system and bimetal types | 35 |
| 2899 | Incense | * |
| 3822 | Incinerator control systems, residential and commercial types | 35 |
| 1796 | Incinerator installation, small-contractors | * |
| 4953 | Incinerator operation | 138 |
| 3272 | Incinerators, concrete | 32 |
| 3567 | Incinerators, metal: domestic and commercial | 14 |
| 7291 | Income tax return preparation services without accounting, auditing, or bookkeeping services | * |
| 3523 | Incubators, except laboratory and infant | 49 |
| 3821 | Incubators, laboratory | 30 |
| 2675 | Index and other cut cards – made from purchased materials | * |
| 3952 | India ink | * |
| 3949 | Indian clubs | 124 |
| 5084 | Indicating instruments and accessories – wholesale | 51 |
| 3825 | Indicating instruments, electric | 93 |
| 2819 | Indium chloride | * |
________
* There are SEC Registrants, but only at the 2- or 3-digit SIC Code levels. |
