| Business | Phone |
| Dick Autry Investigations Sonora 95370 | (209) 588-1215 |
| Dri 6 S Washington St, Sonora 95370 | (209) 532-0411 |
| East & West Assoc 124 N Poplar St, Sonora 95370 | (209) 532-0660 |
| R Beeman Investigations Po Box 3021, Sonora 95370 | (209) 532-2605 |
| Will Hutchins Investigations Sonora 95370 | (209) 586-0733 |