| SIC Code | Business or Product | Registrants |
|---|
|  | | |
| 7299 | Diet workshops | 1 |
| 2023 | Dietary supplements, dairy and nondairy base | * |
| 5499 | Dietetic food stores – retail | * |
| 2869 | Diethylcyclohexane (mixed isomers) | * |
| 2869 | Diethylene glycol ether | * |
| 8049 | Dieticians, offices of | * |
| 3823 | Differential pressure instruments, industrial process type | 110 |
| 3826 | Differential thermal analysis instruments | 126 |
| 3714 | Differentials and parts, motor vehicle | 366 |
| 3443 | Digesters, process: metal plate | 35 |
| 3823 | Digital displays of process variables | 110 |
| 3663 | Digital encoders | 327 |
| 3825 | Digital panel meters, electricity measuring | 93 |
| 3825 | Digital test equipment, electronic and electrical circuits and equipment | 93 |
| 3825 | Digital-to-analog converters, electronic instrumentation type | 93 |
| 2834 | Digitalis pharmaceutical preparations | 1,955 |
| 2833 | Digitoxin | 206 |
| 2821 | Diisocyanate resins | 102 |
| 1629 | Dike construction-general contractors | * |
| 3281 | Dimension stone for buildings | 10 |
________
* There are SEC Registrants, but only at the 2- or 3-digit SIC Code levels. |
