| Business | Phone |
| Altman Software Assoc 125 6th St, Sioux City 51103 | (712) 277-2176 |
| Broader Software 520 Nebraska St, Sioux City 51101 | (712) 252-2704 |
| Computer Management Svc 4021 W 23rd St, Sioux City 51103 | (712) 258-1143 |
| Newtek Accounting Systems 401 Douglas St 411, Sioux City 51101 | (712) 234-0774 |