| Business | Phone |
| Canyon Land Surveying 4061 Oceanside Blvd # N, Oceanside 92056 | (760) 724-3500 |
| Edward E Bohrer Inc 1919 Apple St # N, Oceanside 92054 | (760) 722-3131 |
| Right Of Way Engineering Svc 4167 Avenida De La Plata # 114, Oceanside 92056 | (760) 732-1366 |
| John L Walters Land Surveying 606 Cassidy St # B, Oceanside 92054 | (760) 722-1200 |