| Business | Phone |
| American Challenge Inc 2104 Milton Ave, Des Moines 50317 | (515) 243-8522 |
| National Oak Distributors Inc 4375 Ne 14th St, Des Moines 50313 | (515) 265-7588 |
| Dee Zee Inc 1572 Ne 58th Ave, Des Moines 50313 | (515) 265-7331 |
| Westco Products Inc 10686 County Line Rd, Des Moines 50320 | (515) 285-3575 |