| Business | Phone |
| Astro Survey Co 16335 North St, Redding 96001 | (530) 241-3102 |
| Burgess Land Surveys 7036 Westside Rd # 202, Redding 96001 | (530) 244-0996 |
| Del Terra Inc 1168 Industrial St, Redding 96002 | (530) 241-8050 |
| Doss Engineering 1537 Riviera Dr, Redding 96001 | (530) 242-1201 |
| Greenhaw Surveying & Mapping 2494 Beverly Dr # 2, Redding 96002 | (530) 222-5757 |
| Lehmann & Assoc Consulting 1212 South St, Redding 96001 | (530) 241-2596 |
| Nor-Cal Surveys 22049 Mirror Valley Ln, Redding 96003 | (530) 209-4150 |
| Robert B Richardson-Surveyor 8440 Redbank Rd, Redding 96001 | (530) 243-0595 |
| Ronald Greenwell & Assoc Inc 2925 Innsbruck Dr, Redding 96003 | (530) 223-9088 |
| Systematic Surveys Inc 701 Redwood Blvd # 11, Redding 96003 | (530) 243-2190 |
| Towill Inc 20275 Skypark Dr # D, Redding 96002 | (530) 223-3344 |