| Business | Phone |
| Auburn Plastics Llc 4535 W Fullerton Ave, Chicago 60639 | (773) 254-4900 |
| Star Thermoplastic Alloys 2635 S Wabash Ave, Chicago 60616 | (312) 225-7800 |
| Sapir Studios 2924 N Pulaski Rd, Chicago 60641 | (773) 465-0066 |
| Prime Alliance 1872 N Clybourn Ave, Chicago 60614 | (773) 880-0229 |
| Resinex Inc 1669 N Vine St, Chicago 60614 | (312) 943-0083 |
| International Polymer 3130 N Lake Shore Dr 700, Chicago 60657 | (773) 244-0470 |