| Business | Phone |
| Amber Computer Svc S 80th Ave, Frankfort 60423 | (815) 469-0500 |
| Fidelis Group 10241 W Lincoln Hwy, Frankfort 60423 | (815) 464-9377 |
| Full Computer Consulting 21357 S 79th Ave, Frankfort 60423 | (815) 469-8964 |
| Medtel Inc 814 Glen Eagles Ct # 200, Frankfort 60423 | (815) 260-7940 |
| Look Computer Svc Frankfort 60423 | (815) 464-5665 |