| Business | Phone |
| Computer Associates Intl Inc 14301 First National Bank Pkwy, Omaha 68154 | (402) 492-7900 |
| Computer Associates Intl Inc 14301 Fnb Pkwy, Omaha 68154 | (402) 492-8900 |
| Union Pacific Technologies Inc 1416 Dodge St, Omaha 68179 | (402) 544-5000 |
| Silverdisc Software 3911 S 187th St, Omaha 68130 | (402) 201-3072 |