| Business | Phone |
| All-Prox Distribution Svc 6385 W 74th St, Chicago 60638 | (708) 496-1010 |
| Foxxplayer Sound 77 2315 E 95th St, Chicago 60617 | (773) 374-2434 |
| China Express Inc 5945 W North Ave, Chicago 60639 | (773) 622-1415 |
| Radio Communications Corp 400 W Madison St, Chicago 60606 | (312) 648-9599 |
| Ricoh Business Systems 225 W Wacker Dr 1515, Chicago 60606 | (312) 422-8900 |
| Illinois Communications Inc 300 N Ogden Ave, Chicago 60607 | (312) 243-0588 |
| Mac Lean Power-Joslyn 3700 S Morgan St, Chicago 60609 | (773) 927-1420 |
| Radio Direct Group 401 N Milwaukee Ave, Chicago 60610 | (312) 829-5196 |
| U S 800 Svc Llc 325 W Huron St, Chicago 60610 | (312) 266-6211 |
| Total Eclypze Soundz Chicago 60611 | (312) 378-7722 |
| Libreria Giron 3811 W 26th St, Chicago 60623 | (773) 762-1770 |
| Mobile Madness 5176 S Archer Ave, Chicago 60632 | (773) 581-3663 |
| Tge Inc 5619 W Byron St, Chicago 60634 | (773) 777-6047 |
| Laser Tech Studio 5045 N Sheridan Rd, Chicago 60640 | (773) 271-1888 |
| Soundtronix Inc 3800 N Pulaski Rd, Chicago 60641 | (773) 282-0555 |
| Studio 2020 2020 W Concord Pl, Chicago 60647 | (773) 252-3030 |
| Mit Installation & Svc Chicago 60657 | (773) 528-1933 |
| North Central Electronics Supl 3412 W Bryn Mawr Ave, Chicago 60659 | (773) 588-6012 |
| Rapid Com Inc 180 N La Salle St, Chicago 60601 | (312) 377-1420 |
| Align Communication 130 S Canal St, Chicago 60606 | (312) 441-0093 |
| Ipc Information Systems Inc 10 S Riverside Plz 1050, Chicago 60606 | (312) 332-5500 |
| Jovan Broadcasting Corp 233 S Wacker Dr, Chicago 60606 | (312) 474-9162 |
| Lanier Worldwide Inc 225 W Wacker Dr, Chicago 60606 | (312) 470-3560 |
| Lucent Technologies 20 N Wacker Dr, Chicago 60606 | (312) 629-3518 |
| Somera Communications Inc 120 S Riverside Plz 2100, Chicago 60606 | (312) 242-0900 |
| Mobil Zone 1523 W Taylor St, Chicago 60607 | (312) 445-0445 |
| Scandal Music 1118 W Madison St, Chicago 60607 | (312) 738-2407 |
| Metropolitan Music & Cinema 455 W North Ave, Chicago 60610 | (312) 440-7006 |
| Radio Unica 541 N Fairbanks Ct 1260, Chicago 60611 | (312) 279-9100 |
| Teleprompter Of Chicago 444 N Lake Shore Dr, Chicago 60611 | (312) 266-6500 |
| Hilltop Studio Inc 2759 W Lake St, Chicago 60612 | (773) 722-2339 |
| Pressure Point Recordings 2239 S Michigan Ave, Chicago 60616 | (312) 842-8099 |
| Sound Of Authority 1712 S Prairie Ave, Chicago 60616 | (312) 663-9991 |
| David A Najem 2056 W Irving Park Rd, Chicago 60618 | (773) 525-7149 |
| Quality Paging 7532 S Cottage Grove Ave, Chicago 60619 | (773) 723-6302 |
| Sound Investment Av Dep 1438 W Kinzie St 200, Chicago 60622 | (312) 733-6860 |
| Radio City Usa Inc 3210 W Roosevelt Rd, Chicago 60624 | (773) 722-1111 |
| Robz Restaurant Inc 3119 W Lawrence Ave, Chicago 60625 | (773) 463-5363 |
| Gospel Music Foundation Inc 10133 S Halsted St, Chicago 60628 | (773) 239-5570 |
| True Gospel Productions 10133 S Halsted St, Chicago 60628 | (773) 239-1833 |
| Q & L Sound 13749 S Avenue O, Chicago 60633 | (773) 646-4220 |
| Rift Records 3414 N Olcott Ave, Chicago 60634 | (773) 836-5000 |
| Radio Communications Assoc 5245 W 55th St, Chicago 60638 | (773) 723-1464 |
| Signal Sound Source 2016 N Austin Ave, Chicago 60639 | (773) 622-8135 |
| Vip Auto Sound 4505 W Grand Ave, Chicago 60639 | (773) 342-0621 |
| Mit 5330 N Kenmore Ave, Chicago 60640 | (773) 271-4093 |
| Msi Music 3822 W Altgeld St, Chicago 60647 | (773) 278-0241 |
| Secret Frequency Inc 1738 W Newport Ave, Chicago 60657 | (312) 208-0085 |
| Welcome Video 2416 W Devon Ave, Chicago 60659 | (773) 508-0633 |