| Company | Address, phone, e-mail | City | State | |
|---|---|---|---|---|
 | Acton Mobile Industries | 44W300 IL Route 64 Maple Park, IL 60151 P 630-365-9980 | Chicago | Illinois |
 | Modular Space Corporation | Chicago 1425 Gifford Road Elgin IL 60120 P 847-488-1334 Send Email | Chicago | Illinois |