| Business | Phone |
| Spiral Collection 1500 S Western Ave 5, Chicago 60608 | (312) 738-0622 |
| Universal Lighting Corp 3084 S Lock St, Chicago 60608 | (773) 927-2000 |
| Metomic Corp 2944 W 26th St, Chicago 60623 | (773) 247-4716 |
| National Handicapped Workshop 3950 W 63rd St, Chicago 60629 | (773) 838-1079 |
| Lumenart Ltd 320 N Damen Ave, Chicago 60612 | (312) 829-3023 |