| Business | Phone |
| Afrocentrex Software 937 N Taylor Ave, Oak Park 60302 | (773) 463-6269 |
| Blaising Group 500 Washington Blvd # 105, Oak Park 60302 | (708) 445-7245 |
| Blajo Enterprise 1179 S Taylor Ave, Oak Park 60304 | (708) 386-1893 |
| Five Sticks Publications 6957 North Ave, Oak Park 60302 | (708) 386-4200 |
| Captura Software 807 Madison St, Oak Park 60302 | (708) 386-7098 |
| Everge 1103 Westgate St, Oak Park 60301 | (708) 524-9200 |
| Communications Programming Inc 703 Woodbine Ave, Oak Park 60302 | (708) 386-9676 |