| Business | Phone |
| Aspen Survey Co 1121 Oakdale Rd # 6, Modesto 95355 | (209) 526-9724 |
| Daly Land Surveying Modesto 95350 | (209) 549-7989 |
| J B Anderson Land Use Planning 518 13th St, Modesto 95354 | (209) 599-8377 |
| Valley Staking Svc Inc 1150 9th St # 1215, Modesto 95354 | (209) 848-1233 |