| Business | Phone |
| Smallwood Technologies Inc 2202 Missouri Blvd, Jefferson City 65109 | (573) 761-4400 |
| Micro-Technologies Inc 501 Lakeview Heights Dr, Jefferson City 65109 | (573) 635-9330 |
| Micro-Tek Inc Business Highway 50 W, Jefferson City 65101 | (573) 635-9330 |