| Business | Phone |
| A 5 Communications Inc 409 E 16th St, Lockport 60441 | (815) 588-0370 |
| Communication Technicians 1981 S Farrell Rd, Lockport 60441 | (815) 834-0411 |
| Communications Plus Needs Pro 119 E 10th St, Lockport 60441 | (815) 838-0858 |
| Network One Communications 14401 Archer Ave, Lockport 60441 | (815) 838-4850 |