| Business | Phone |
| H V Barnard 1507 E Broadway, Columbia 65201 | (573) 443-3313 |
| Veritas Assessment Systems Columbia 65203 | (573) 445-2559 |
| Gordon H Lamb & Assoc 8851 S Kari Ln, Columbia 65201 | (573) 817-0434 |
| Missouri Training Institute 304 Cornell Hall, Columbia 65201 | (573) 882-2860 |
| Human Development Corp 1500 Vandiver Dr, Columbia 65202 | (573) 214-0889 |