| Business | Phone |
| Accurate Hydraulics & Machine 1536 Ohio St, Des Moines 50314 | (515) 246-8269 |
| Amatco Mfg 2001 Maple St, Des Moines 50317 | (515) 276-4528 |
| Automotive Machine Shop Svc 2774 Highway 65 69, Des Moines 50315 | (515) 287-5758 |
| Hawkeye Machine Co 403 E Jackson Ave, Des Moines 50315 | (515) 280-3646 |
| Hyperformance 5152 E University Ave, Des Moines 50327 | (515) 266-6381 |
| Rev-Tech Lc 5267 Ne 15th St, Des Moines 50313 | (515) 266-8225 |
| Thomas Engineering 101 Clark St, Des Moines 50314 | (515) 244-7194 |