| Business | Phone |
| Alaniz Construction Inc Walnut Creek 94596 | (925) 287-0900 |
| Chuck Harris Paving Po Box 2131, Walnut Creek 94595 | (925) 944-0943 |
| G Ferrabee Co Walnut Creek 94596 | (925) 939-0422 |
| Residential Driveway 2121 N California Blvd # 290, Walnut Creek 94596 | (925) 743-9779 |