| Naics index | Naics index description |
|---|---|
| 339940 | Typewriter ribbons manufacturing |
| 339940 | Water colors, artist's, manufacturing |
| 339950 | Billboards manufacturing |
| 339950 | Displays (e.g., counter, floor, point-of-purchase) manufacturing |
| 339950 | Electrical signs manufacturing |
| 339950 | Letters for signs manufacturing |
| 339950 | Neon signs manufacturing |
| 339950 | Scoreboards manufacturing |
| 339950 | Signs and signboards (except paper, paperboard) manufacturing |
| 339950 | Traffic (e.g., highway, road, street, bridge) signs manufacturing |