| Crim Floyd & Sons Paving Contr | 317-544-2471 | 3640 N 775 E | Manilla | IN | 46150 |
| Delphi Limestone Co | 317-564-2580 | W Delphi | Delphi | IN | 46923 |
| Derbyshire Quarry | 317-698-2227 | 24031 Derbyshire Rd | Laurel | IN | 47024 |
| Rock Industries Main Office | 317-473-5578 | U S Highway 24 | Peru | IN | 46970 |
| Rock Industries Testing Ofc | 317-472-5563 | Blair Pike Rd | Peru | IN | 46970 |
| Rush County Stone Co Inc Ofc | 317-629-2211 | 5556 W State Road 244 | Milroy | IN | 46156 |