| Business | Phone |
| Carroll Business Systems Inc 1950 W Sunset St, Springfield 65807 | (417) 883-1003 |
| Hamco Ozarks Po Box 2501 Pmb 252, Springfield 65801 | (417) 869-1010 |
| Jordan Cash Register Co 2776 S Campbell Ave # B, Springfield 65807 | (417) 883-6514 |
| State Business Systems 1740 S Glenstone Ave # H, Springfield 65804 | (417) 881-8696 |
| Springfield Business Systems 3066 S Delaware Ave, Springfield 65804 | (417) 883-1864 |
| Retail Data Systems 2415 S Campbell Ave # 6, Springfield 65807 | (417) 889-7720 |