| Business | Phone |
| Compulink 409 Vandiver Dr # 4 # 200, Columbia 65202 | (573) 443-1282 |
| Professional Data Svc Inc 1400 Forum Blvd, Columbia 65203 | (573) 446-2900 |
| Idea Works Inc 100 W Briarwood Ln, Columbia 65203 | (573) 445-4554 |
| Information Technology Group Columbia 65201 | (573) 449-2404 |