| Business | Phone |
| C & K Model Solutions 328 S Jefferson St 1005, Chicago 60661 | (312) 282-8301 |
| O'sullivan & Dunlap Studio 1135 W Fulton Market, Chicago 60607 | (312) 666-4571 |
| K & K Pattern Works 1200 W 35th St 268, Chicago 60609 | (773) 247-4421 |
| Rohr Studios 474 N Milwaukee Ave, Chicago 60610 | (312) 243-6770 |
| Sharp Study Models & Architect 3044 W Irving Park Rd, Chicago 60618 | (773) 267-3240 |
| Hatcher Associates Inc 1612 N Throop St, Chicago 60622 | (773) 252-2171 |
| Model Builders Inc 6155 S Oak Park Ave, Chicago 60638 | (773) 586-6500 |
| Presentation Studios Int' 1435 W Fulton St, Chicago 60607 | (312) 943-8160 |
| Wielgus Product Models Inc 1435 W Fulton St, Chicago 60607 | (312) 943-1950 |
| Test Account 750 N Franklin St, Chicago 60610 | (312) 335-5480 |
| Kaleidoscope Imaging 700 N Sacramento Blvd, Chicago 60612 | (773) 722-9701 |
| Jan Engineering Co 3112 N Laramie Ave, Chicago 60641 | (773) 736-5583 |
| Thomas Gilmore Product Models 6034 N Kedvale Ave, Chicago 60646 | (773) 283-2826 |
| Triple B Studio 1902 N Milwaukee Ave, Chicago 60647 | (773) 276-7434 |
| Trek Studios 2814 N Southport Ave, Chicago 60657 | (773) 588-1820 |