| Business | Phone |
| Oak Software Inc 118 Waddill Ave, Madisonville 42431 | (270) 821-4210 |
| Profile Systems Design Group 47 W North St, Madisonville 42431 | (270) 821-0720 |
| Cornerstone Information Syst 101 E Center St, Madisonville 42431 | (270) 825-4281 |
| Durban & Assoc 1909 S Main St, Madisonville 42431 | (270) 821-9597 |