| Business | Phone |
| Basic Materials Corp 2429 Wagner Rd, Waterloo 50703 | (319) 233-1411 |
| Basic Materials Corp 3622 Gilbertville Rd, Waterloo 50701 | (319) 232-5810 |
| Bob Walters & Son Trucking Inc 4010 Wells Ave, Waterloo 50703 | (319) 234-4214 |
| Quam Trucking 3842 Osage Rd, Waterloo 50703 | (319) 234-5393 |